| Rank | Average Family Size ▼ | School District / Population |
| 1. | 3.79 | Pequea Valley School District / 21,413 |
| 2. | 3.52 | Reading School District / 88,082 |
| 3. | 3.42 | Solanco School District / 31,827 |
| 4. | 3.39 | Oxford Area School District / 25,814 |
| 5. | 3.37 | Octorara Area School District / 17,990 |
| 6. | 3.36 | Eastern Lancaster County School District / 32,151 |
| 7. | 3.35 | Avon Grove School District / 30,080 |
| 7. | 3.35 | Bryn Athyn School District / 1,375 |
| 9. | 3.33 | Chester-Upland School District / 41,151 |
| 10. | 3.32 | Kennett Consolidated School District / 27,089 |
| 10. | 3.32 | York City School District / 43,718 |
| 12. | 3.29 | Allentown City School District / 118,036 |
| 13. | 3.25 | Conestoga Valley School District / 33,000 |
| 13. | 3.25 | Upper Darby School District / 90,606 |
| 13. | 3.25 | William Penn School District / 42,116 |
| 16. | 3.23 | Pine-Richland School District / 22,597 |
| 17. | 3.22 | Downingtown Area School District / 68,499 |
| 17. | 3.22 | Southeast Delco School District / 30,353 |
| 17. | 3.22 | Harrisburg City School District / 49,528 |
| 20. | 3.21 | Salisbury-Elk Lick School District / 2,968 |
| 20. | 3.21 | Bristol Township School District / 54,582 |
| 22. | 3.20 | Cocalico School District / 23,201 |
| 22. | 3.20 | Lower Moreland Township School District / 12,982 |
| 22. | 3.20 | Peters Township School District / 21,213 |
| 22. | 3.20 | East Stroudsburg Area School District / 47,915 |
| 22. | 3.20 | Philadelphia City School District / 1,526,006 |
| 27. | 3.19 | Lancaster School District / 74,885 |
| 27. | 3.19 | Tulpehocken Area School District / 12,267 |
| 27. | 3.19 | Perkiomen Valley School District / 37,677 |
| 27. | 3.19 | Daniel Boone Area School District / 21,249 |
| 27. | 3.19 | Pleasant Valley School District / 33,880 |
| 27. | 3.19 | Springfield School District / 26,880 |
| 33. | 3.18 | Spring-Ford Area School District / 47,368 |
| 33. | 3.18 | Fannett-Metal School District / 4,521 |
| 35. | 3.17 | Pocono Mountain School District / 64,586 |
| 35. | 3.17 | Stroudsburg Area School District / 34,609 |
| 35. | 3.17 | Methacton School District / 35,186 |
| 35. | 3.17 | Central Bucks School District / 114,377 |
| 35. | 3.17 | Haverford Township School District / 48,491 |
| 40. | 3.16 | Hatboro-Horsham School District / 33,507 |
| 41. | 3.15 | Coatesville Area School District / 62,979 |
| 41. | 3.15 | Radnor Township School District / 31,531 |
| 41. | 3.15 | Twin Valley School District / 24,048 |
| 44. | 3.14 | Northern Bedford County School District / 6,958 |
| 44. | 3.14 | Interboro School District / 23,588 |
| 44. | 3.14 | Council Rock School District / 72,458 |
| 44. | 3.14 | Garnet Valley School District / 28,553 |
| 48. | 3.13 | Chichester School District / 24,432 |
| 48. | 3.13 | Upper Dublin School District / 25,569 |
| 50. | 3.12 | Lebanon School District / 26,258 |
| 50. | 3.12 | Norristown Area School District / 63,577 |
| 50. | 3.12 | Pottsgrove School District / 21,248 |
| 50. | 3.12 | Bristol Borough School District / 9,726 |
| 50. | 3.12 | Pennsbury School District / 71,165 |
| 50. | 3.12 | Souderton Area School District / 45,316 |
| 56. | 3.11 | Upper Saint Clair School District / 19,229 |
| 56. | 3.11 | Abington School District / 57,853 |
| 56. | 3.11 | Bensalem Township School District / 60,416 |
| 56. | 3.11 | Pennridge School District / 48,307 |
| 60. | 3.10 | Neshaminy School District / 70,751 |
| 60. | 3.10 | Easton Area School District / 63,870 |
| 60. | 3.10 | Quakertown Community School District / 36,426 |
| 60. | 3.10 | Upper Dauphin Area School District / 9,755 |
| 60. | 3.10 | South Eastern School District / 19,544 |
| 60. | 3.10 | Ridley School District / 40,180 |
| 66. | 3.09 | West Chester Area School District / 108,433 |
| 66. | 3.09 | Owen J. Roberts School District / 32,804 |
| 66. | 3.09 | Eastern Lebanon County School District / 20,705 |
| 66. | 3.09 | Marple Newtown School District / 35,644 |
| 66. | 3.09 | Steelton-Highspire School District / 8,389 |
| 66. | 3.09 | Delaware Valley School District / 29,140 |
| 66. | 3.09 | North Penn School District / 98,175 |
| 66. | 3.09 | Tredyffrin-Easttown School District / 39,809 |
| 74. | 3.08 | Erie City School District / 101,798 |
| 74. | 3.08 | Seneca Valley School District / 46,966 |
| 74. | 3.08 | Penn-Delco School District / 26,926 |
| 74. | 3.08 | Wallingford-Swarthmore School District / 21,597 |
| 74. | 3.08 | Penns Valley Area School District / 12,819 |
| 74. | 3.08 | Corry Area School District / 14,849 |
| 74. | 3.08 | Duquesne City School District / 5,565 |
| 81. | 3.07 | South Fayette Township School District / 14,416 |
| 81. | 3.07 | Mifflinburg Area School District / 16,360 |
| 81. | 3.07 | Wilmington Area School District / 11,828 |
| 81. | 3.07 | Fleetwood Area School District / 16,608 |
| 81. | 3.07 | Nazareth Area School District / 27,963 |
| 81. | 3.07 | Unionville-Chadds Ford School District / 23,691 |
| 87. | 3.06 | South Side Area School District / 6,711 |
| 87. | 3.06 | Southern Lehigh School District / 20,969 |
| 87. | 3.06 | Jenkintown School District / 4,422 |
| 90. | 3.05 | Hampton Township School District / 18,363 |
| 90. | 3.05 | Bermudian Springs School District / 13,105 |
| 90. | 3.05 | Wattsburg Area School District / 10,412 |
| 90. | 3.05 | Scranton School District / 76,089 |
| 90. | 3.05 | Union City Area School District / 6,894 |
| 90. | 3.05 | Marion Center Area School District / 10,491 |
| 90. | 3.05 | Wilson Area School District / 15,477 |
| 90. | 3.05 | Montgomery Area School District / 7,427 |
| 90. | 3.05 | Ephrata Area School District / 32,978 |
| 90. | 3.05 | Greencastle-Antrim School District / 18,889 |
| 90. | 3.05 | Shippensburg Area School District / 28,194 |
| 101. | 3.04 | Great Valley School District / 29,816 |
| 101. | 3.04 | Boyertown Area School District / 46,133 |
| 101. | 3.04 | Centennial School District / 48,875 |
| 101. | 3.04 | North Allegheny School District / 50,013 |
| 105. | 3.03 | Lampeter-Strasburg School District / 22,789 |
| 105. | 3.03 | Midd-West School District / 17,458 |
| 105. | 3.03 | Bangor Area School District / 22,655 |
| 105. | 3.03 | Exeter Township School District / 27,359 |
| 105. | 3.03 | Avonworth School District / 10,055 |
| 105. | 3.03 | Northwestern Lehigh School District / 14,741 |
| 105. | 3.03 | Phoenixville Area School District / 32,035 |
| 105. | 3.03 | Mars Area School District / 18,960 |
| 105. | 3.03 | Parkland School District / 54,946 |
| 105. | 3.03 | Columbia Borough School District / 10,400 |
| 115. | 3.02 | Abington Heights School District / 23,623 |
| 115. | 3.02 | Cheltenham Township School District / 36,793 |
| 115. | 3.02 | Northeastern York School District / 23,371 |
| 115. | 3.02 | Titusville Area School District / 14,151 |
| 115. | 3.02 | Wissahickon School District / 36,697 |
| 115. | 3.02 | Upper Adams School District / 10,828 |
| 115. | 3.02 | Lower Merion School District / 62,107 |
| 115. | 3.02 | Red Lion Area School District / 38,264 |
| 115. | 3.02 | Warwick School District / 31,038 |
| 115. | 3.02 | Northern Lebanon School District / 17,419 |
| 125. | 3.01 | Iroquois School District / 7,323 |
| 125. | 3.01 | Upper Perkiomen School District / 22,324 |
| 125. | 3.01 | Tuscarora School District / 18,407 |
| 125. | 3.01 | Springfield Township School District / 19,418 |
| 125. | 3.01 | Canton Area School District / 6,531 |
| 125. | 3.01 | Crestwood School District / 20,018 |
| 125. | 3.01 | Bethlehem Area School District / 116,811 |
| 125. | 3.01 | Conewago Valley School District / 27,315 |
| 125. | 3.01 | Juniata County School District / 24,019 |
| 125. | 3.01 | West Perry School District / 18,994 |
| 125. | 3.01 | Northwestern School District / 12,097 |
| 125. | 3.01 | Upper Moreland Township School District / 24,015 |
| 125. | 3.01 | Warrior Run School District / 17,290 |
| 138. | 3.00 | Littlestown Area School District / 14,575 |
| 138. | 3.00 | Penncrest School District / 24,644 |
| 138. | 3.00 | Williamsburg Community School District / 3,671 |
| 138. | 3.00 | Penn-Trafford School District / 26,083 |
| 138. | 3.00 | Pottstown School District / 22,377 |
| 138. | 3.00 | Manheim Central School District / 24,089 |
| 138. | 3.00 | Rose Tree Media School District / 35,263 |
| 138. | 3.00 | Harmony Area School District / 2,345 |
| 138. | 3.00 | Selinsgrove Area School District / 22,244 |
| 138. | 3.00 | Sharon City School District / 14,038 |
| 148. | 2.99 | Northern Cambria School District / 7,898 |
| 148. | 2.99 | Elizabethtown Area School District / 30,068 |
| 148. | 2.99 | Laurel School District / 8,107 |
| 148. | 2.99 | Fox Chapel Area School District / 28,727 |
| 148. | 2.99 | Hazleton Area School District / 72,891 |
| 148. | 2.99 | North East School District / 10,609 |
| 148. | 2.99 | Big Spring School District / 20,627 |
| 148. | 2.99 | East Penn School District / 54,571 |
| 148. | 2.99 | North Clarion County School District / 4,857 |
| 148. | 2.99 | Mifflin County School District / 43,607 |
| 148. | 2.99 | Oswayo Valley School District / 3,306 |
| 148. | 2.99 | Antietam School District / 7,581 |
| 148. | 2.99 | Colonial School District / 41,707 |
| 161. | 2.98 | North Pocono School District / 20,809 |
| 161. | 2.98 | Punxsutawney Area School District / 21,024 |
| 161. | 2.98 | Penn Cambria School District / 17,381 |
| 161. | 2.98 | Lackawanna Trail School District / 8,671 |
| 161. | 2.98 | Conrad Weiser Area School District / 19,284 |
| 161. | 2.98 | Central York School District / 37,538 |
| 161. | 2.98 | West Allegheny School District / 20,453 |
| 161. | 2.98 | Elk Lake School District / 8,362 |
| 161. | 2.98 | Lower Dauphin School District / 24,736 |
| 161. | 2.98 | Mt. Lebanon School District / 33,137 |
| 161. | 2.98 | Southern York County School District / 20,833 |
| 161. | 2.98 | Derry Township School District / 24,679 |
| 161. | 2.98 | Upper Merion Area School District / 34,269 |
| 161. | 2.98 | Northeast Bradford School District / 5,644 |
| 161. | 2.98 | South Western School District / 26,736 |
| 176. | 2.97 | Girard School District / 11,237 |
| 176. | 2.97 | Plum Borough School District / 27,126 |
| 176. | 2.97 | Morrisville Borough School District / 8,728 |
| 176. | 2.97 | Manheim Township School District / 38,162 |
| 176. | 2.97 | Karns City Area School District / 10,423 |
| 176. | 2.97 | Freeport Area School District / 11,756 |
| 176. | 2.97 | Donegal School District / 20,557 |
| 176. | 2.97 | Lakeview School District / 8,610 |
| 176. | 2.97 | Riverside School District / 11,982 |
| 176. | 2.97 | Carbondale Area School District / 11,069 |
| 176. | 2.97 | Wilson School District / 38,983 |
| 187. | 2.96 | New Castle Area School District / 24,323 |
| 187. | 2.96 | Hempfield School District / 46,983 |
| 187. | 2.96 | Saucon Valley School District / 16,670 |
| 187. | 2.96 | Spring Grove Area School District / 27,384 |
| 187. | 2.96 | Harbor Creek School District / 17,234 |
| 187. | 2.96 | Muhlenberg School District / 23,539 |
| 187. | 2.96 | Whitehall-Coplay School District / 29,930 |
| 187. | 2.96 | Pen Argyl Area School District / 12,453 |
| 187. | 2.96 | Penn Manor School District / 41,319 |
| 187. | 2.96 | Wilkes-Barre Area School District / 59,879 |
| 187. | 2.96 | Northern Potter School District / 4,184 |
| 187. | 2.96 | West Greene School District / 5,108 |
| 187. | 2.96 | Quaker Valley School District / 13,934 |
| 187. | 2.96 | Moon Area School District / 26,825 |
| 187. | 2.96 | Fort LeBoeuf School District / 14,150 |
| 187. | 2.96 | West Middlesex Area School District / 7,454 |
| 187. | 2.96 | Newport School District / 7,627 |
| 204. | 2.95 | Keystone School District / 7,615 |
| 204. | 2.95 | Schuylkill Valley School District / 14,784 |
| 204. | 2.95 | Lake-Lehman School District / 16,821 |
| 204. | 2.95 | Grove City Area School District / 17,699 |
| 204. | 2.95 | Moniteau School District / 9,295 |
| 204. | 2.95 | Commodore Perry School District / 4,235 |
| 204. | 2.95 | Purchase Line School District / 7,165 |
| 204. | 2.95 | Fairview School District / 10,102 |
| 204. | 2.95 | South Park School District / 13,416 |
| 213. | 2.94 | Wyomissing Area School District / 12,347 |
| 213. | 2.94 | Dallas School District / 20,566 |
| 213. | 2.94 | Juniata Valley School District / 5,162 |
| 213. | 2.94 | Conneaut School District / 18,617 |
| 213. | 2.94 | Southern Fulton School District / 5,594 |
| 213. | 2.94 | General McLane School District / 17,300 |
| 213. | 2.94 | Jersey Shore Area School District / 17,858 |
| 213. | 2.94 | Cambria Heights School District / 9,990 |
| 213. | 2.94 | Southeastern Greene School District / 4,649 |
| 213. | 2.94 | Southern Huntingdon County School District / 7,984 |
| 213. | 2.94 | Penns Manor Area School District / 6,155 |
| 213. | 2.94 | Mahanoy Area School District / 11,477 |
| 213. | 2.94 | Albert Gallatin Area School District / 23,880 |
| 213. | 2.94 | Oley Valley School District / 13,206 |
| 213. | 2.94 | South Butler County School District / 18,499 |
| 213. | 2.94 | Shenango Area School District / 8,181 |
| 213. | 2.94 | Avella Area School District / 4,209 |
| 213. | 2.94 | Northwest Area School District / 9,070 |
| 213. | 2.94 | Schuylkill Haven Area School District / 8,415 |
| 232. | 2.93 | Fairfield Area School District / 7,992 |
| 232. | 2.93 | Greenwood School District / 5,489 |
| 232. | 2.93 | Forest Hills School District / 12,657 |
| 232. | 2.93 | Brockway Area School District / 7,534 |
| 232. | 2.93 | Waynesboro Area School District / 32,339 |
| 232. | 2.93 | Millcreek Township School District / 53,503 |
| 232. | 2.93 | Pine Grove Area School District / 11,803 |
| 232. | 2.93 | Spring Cove School District / 14,446 |
| 232. | 2.93 | Halifax Area School District / 7,603 |
| 232. | 2.93 | Dunmore School District / 14,057 |
| 232. | 2.93 | McGuffey School District / 12,757 |
| 232. | 2.93 | Tunkhannock Area School District / 19,039 |
| 232. | 2.93 | Shenandoah Valley School District / 7,943 |
| 232. | 2.93 | Valley View School District / 18,224 |
| 232. | 2.93 | Dover Area School District / 25,748 |
| 247. | 2.92 | Chambersburg Area School District / 66,240 |
| 247. | 2.92 | Millville Area School District / 5,565 |
| 247. | 2.92 | United School District / 7,988 |
| 247. | 2.92 | Midland Borough School District / 2,635 |
| 247. | 2.92 | Armstrong School District / 43,364 |
| 247. | 2.92 | Northern York County School District / 21,083 |
| 247. | 2.92 | Riverside Beaver County School District / 10,453 |
| 247. | 2.92 | Oil City Area School District / 15,053 |
| 247. | 2.92 | Annville-Cleona School District / 12,078 |
| 247. | 2.92 | Cumberland Valley School District / 54,564 |
| 247. | 2.92 | Altoona Area School District / 59,612 |
| 247. | 2.92 | Ellwood City Area School District / 14,362 |
| 247. | 2.92 | West Jefferson Hills School District / 19,405 |
| 247. | 2.92 | Mountain View School District / 9,134 |
| 247. | 2.92 | Bellefonte Area School District / 25,328 |
| 247. | 2.92 | Tyrone Area School District / 12,928 |
| 247. | 2.92 | Palmerton Area School District / 14,056 |
| 247. | 2.92 | Troy Area School District / 10,410 |
| 247. | 2.92 | Bethlehem-Center School District / 8,759 |
| 247. | 2.92 | Catasauqua Area School District / 10,856 |
| 247. | 2.92 | Brandywine Heights Area School District / 12,863 |
| 247. | 2.92 | Kutztown Area School District / 19,010 |
| 247. | 2.92 | Pottsville Area School District / 20,103 |
| 247. | 2.92 | Blue Mountain School District / 20,471 |
| 247. | 2.92 | Meyersdale Area School District / 7,026 |
| 272. | 2.91 | Northampton Area School District / 41,714 |
| 272. | 2.91 | Jim Thorpe Area School District / 15,798 |
| 272. | 2.91 | Camp Hill School District / 7,888 |
| 272. | 2.91 | Apollo-Ridge School District / 9,519 |
| 272. | 2.91 | Connellsville Area School District / 34,494 |
| 272. | 2.91 | Line Mountain School District / 9,200 |
| 272. | 2.91 | Shanksville-Stonycreek School District / 2,868 |
| 272. | 2.91 | Chestnut Ridge School District / 10,688 |
| 272. | 2.91 | East Pennsboro Area School District / 20,228 |
| 272. | 2.91 | New Hope-Solebury School District / 11,220 |
| 272. | 2.91 | Uniontown Area School District / 23,820 |
| 272. | 2.91 | Canon-McMillan School District / 33,671 |
| 272. | 2.91 | Athens Area School District / 14,779 |
| 272. | 2.91 | Sayre Area School District / 7,934 |
| 272. | 2.91 | Keystone Central School District / 37,799 |
| 272. | 2.91 | Central Dauphin School District / 90,401 |
| 272. | 2.91 | Central Greene School District / 15,921 |
| 272. | 2.91 | Hamburg Area School District / 17,611 |
| 272. | 2.91 | Claysburg-Kimmel School District / 5,789 |
| 272. | 2.91 | Salisbury Township School District / 13,501 |
| 272. | 2.91 | Susquenita School District / 14,612 |
| 272. | 2.91 | Franklin Regional School District / 22,947 |
| 272. | 2.91 | Weatherly Area School District / 5,055 |
| 272. | 2.91 | Bethel Park School District / 32,691 |
| 272. | 2.91 | North Star School District / 9,119 |
| 272. | 2.91 | Brentwood Borough School District / 9,643 |
| 298. | 2.90 | Otto-Eldred School District / 4,181 |
| 298. | 2.90 | Dallastown Area School District / 41,093 |
| 298. | 2.90 | Steel Valley School District / 16,500 |
| 298. | 2.90 | Palmyra Area School District / 22,379 |
| 298. | 2.90 | South Middleton School District / 14,667 |
| 298. | 2.90 | Panther Valley School District / 12,605 |
| 298. | 2.90 | Coudersport Area School District / 5,691 |
| 298. | 2.90 | New Brighton Area School District / 10,958 |
| 298. | 2.90 | Butler Area School District / 54,849 |
| 298. | 2.90 | Burgettstown Area School District / 9,699 |
| 298. | 2.90 | Beaver Area School District / 14,783 |
| 298. | 2.90 | Carmichaels Area School District / 7,106 |
| 298. | 2.90 | Portage Area School District / 6,417 |
| 298. | 2.90 | Forest City Regional School District / 5,819 |
| 298. | 2.90 | Wyalusing Area School District / 9,202 |
| 298. | 2.90 | Susquehanna Township School District / 24,036 |
| 298. | 2.90 | Lakeland School District / 12,101 |
| 298. | 2.90 | Towanda Area School District / 11,148 |
| 298. | 2.90 | Union School District / 4,322 |
| 298. | 2.90 | Mohawk Area School District / 10,867 |
| 298. | 2.90 | Eastern York School District / 19,542 |
| 298. | 2.90 | Fort Cherry School District / 8,508 |
| 298. | 2.90 | Susquehanna Community School District / 5,302 |
| 298. | 2.90 | Tussey Mountain School District / 7,329 |
| 298. | 2.90 | Slippery Rock Area School District / 20,583 |
| 298. | 2.90 | West Branch Area School District / 7,865 |
| 298. | 2.90 | Northern Lehigh School District / 12,926 |
| 298. | 2.90 | Norwin School District / 35,529 |
| 298. | 2.90 | Pittston Area School District / 27,837 |
| 298. | 2.90 | Sto-Rox School District / 12,466 |
| 298. | 2.90 | Deer Lakes School District / 14,428 |
| 298. | 2.90 | Rochester Area School District / 7,046 |
| 330. | 2.89 | McKeesport Area School District / 31,150 |
| 330. | 2.89 | Bloomsburg Area School District / 20,663 |
| 330. | 2.89 | Port Allegany School District / 5,746 |
| 330. | 2.89 | Farrell Area School District / 5,743 |
| 330. | 2.89 | Mercer Area School District / 10,752 |
| 330. | 2.89 | Berlin Brothersvalley School District / 5,851 |
| 330. | 2.89 | Redbank Valley School District / 8,038 |
| 330. | 2.89 | Williamsport Area School District / 41,746 |
| 330. | 2.89 | Center Valley School District / 18,095 |
| 330. | 2.89 | Allegheny-Clarion Valley School District / 5,755 |
| 330. | 2.89 | Moshannon Valley School District / 8,778 |
| 330. | 2.89 | Montrose Area School District / 11,732 |
| 330. | 2.89 | Bald Eagle Area School District / 13,206 |
| 330. | 2.89 | Middletown Area School District / 18,076 |
| 330. | 2.89 | Bentworth School District / 8,553 |
| 330. | 2.89 | Carlisle Area School District / 37,074 |
| 330. | 2.89 | Glendale School District / 5,407 |
| 330. | 2.89 | Blackhawk School District / 17,762 |
| 330. | 2.89 | Western Wayne School District / 19,292 |
| 330. | 2.89 | Wyoming Area School District / 19,386 |
| 330. | 2.89 | Brownsville Area School District / 14,976 |
| 330. | 2.89 | West Shore School District / 62,415 |
| 330. | 2.89 | Governor Mifflin School District / 30,925 |
| 330. | 2.89 | West York Area School District / 23,636 |
| 354. | 2.88 | Montour School District / 25,472 |
| 354. | 2.88 | South Allegheny School District / 11,904 |
| 354. | 2.88 | Tamaqua Area School District / 16,654 |
| 354. | 2.88 | West Mifflin Area School District / 21,584 |
| 354. | 2.88 | Palisades School District / 14,936 |
| 354. | 2.88 | Mechanicsburg Area School District / 28,609 |
| 354. | 2.88 | Williams Valley School District / 7,462 |
| 354. | 2.88 | Wyoming Valley West School District / 42,261 |
| 354. | 2.88 | Mid Valley School District / 15,309 |
| 354. | 2.88 | Lewisburg Area School District / 19,166 |
| 354. | 2.88 | DuBois Area School District / 30,976 |
| 354. | 2.88 | Sharpsville Area School District / 7,741 |
| 354. | 2.88 | Greater Latrobe School District / 31,271 |
| 354. | 2.88 | State College Area School District / 92,270 |
| 354. | 2.88 | Cornwall-Lebanon School District / 34,729 |
| 354. | 2.88 | Forbes Road School District / 2,859 |
| 354. | 2.88 | Southern Tioga School District / 15,719 |
| 354. | 2.88 | Ferndale Area School District / 5,100 |
| 354. | 2.88 | Berwick Area School District / 22,341 |
| 354. | 2.88 | Hopewell Area School District / 18,145 |
| 374. | 2.87 | Tri-Valley School District / 6,715 |
| 374. | 2.87 | Greater Nanticoke Area School District / 19,104 |
| 374. | 2.87 | Blacklick Valley School District / 5,161 |
| 374. | 2.87 | Pittsburgh School District / 309,086 |
| 374. | 2.87 | East Lycoming School District / 10,425 |
| 374. | 2.87 | Lehighton Area School District / 17,885 |
| 374. | 2.87 | Mount Union Area School District / 9,666 |
| 374. | 2.87 | Belle Vernon Area School District / 18,925 |
| 374. | 2.87 | York Suburban School District / 21,658 |
| 374. | 2.87 | Wayne Highlands School District / 20,842 |
| 374. | 2.87 | Yough School District / 16,196 |
| 374. | 2.87 | Shaler Area School District / 39,285 |
| 374. | 2.87 | Ridgway Area School District / 7,030 |
| 374. | 2.87 | Shade-Central City School District / 3,898 |
| 374. | 2.87 | Union Area School District / 5,572 |
| 374. | 2.87 | Rockwood Area School District / 5,615 |
| 374. | 2.87 | Greenville Area School District / 10,634 |
| 374. | 2.87 | Central Fulton School District / 6,392 |
| 374. | 2.87 | Hollidaysburg Area School District / 27,019 |
| 393. | 2.86 | Burrell School District / 14,087 |
| 393. | 2.86 | Everett Area School District / 9,710 |
| 393. | 2.86 | Elizabeth Forward School District / 18,140 |
| 393. | 2.86 | Brookville Area School District / 12,075 |
| 393. | 2.86 | New Kensington-Arnold School District / 18,273 |
| 393. | 2.86 | Hanover Area School District / 15,439 |
| 393. | 2.86 | Danville Area School District / 18,754 |
| 393. | 2.86 | Jeannette City School District / 9,579 |
| 393. | 2.86 | Big Beaver Falls Area School District / 13,827 |
| 393. | 2.86 | Bellwood-Antis School District / 8,327 |
| 393. | 2.86 | Southmoreland School District / 15,199 |
| 393. | 2.86 | Johnsonburg Area School District / 4,537 |
| 393. | 2.86 | Millersburg Area School District / 6,718 |
| 393. | 2.86 | Milton Area School District / 16,580 |
| 393. | 2.86 | Baldwin-Whitehall School District / 35,724 |
| 393. | 2.86 | Conemaugh Valley School District / 6,607 |
| 393. | 2.86 | Minersville Area School District / 9,172 |
| 393. | 2.86 | Riverview School District / 8,777 |
| 411. | 2.85 | Blairsville-Saltsburg School District / 14,591 |
| 411. | 2.85 | Shamokin Area School District / 20,912 |
| 411. | 2.85 | Southern Columbia Area School District / 10,395 |
| 411. | 2.85 | Old Forge School District / 8,313 |
| 411. | 2.85 | South Williamsport Area School District / 9,265 |
| 411. | 2.85 | Central Columbia School District / 14,839 |
| 411. | 2.85 | Kiski Area School District / 28,857 |
| 411. | 2.85 | Bradford Area School District / 21,133 |
| 411. | 2.85 | Charleroi School District / 12,043 |
| 411. | 2.85 | Gateway School District / 31,680 |
| 411. | 2.85 | Gettysburg Area School District / 27,592 |
| 411. | 2.85 | Carlynton School District / 14,350 |
| 411. | 2.85 | Hanover Public School District / 15,289 |
| 411. | 2.85 | Central Cambria School District / 13,842 |
| 411. | 2.85 | Crawford Central School District / 30,672 |
| 411. | 2.85 | Franklin Area School District / 16,283 |
| 411. | 2.85 | Penn Hills School District / 42,423 |
| 411. | 2.85 | Muncy School District / 7,040 |
| 429. | 2.84 | Northern Tioga School District / 14,523 |
| 429. | 2.84 | Aliquippa School District / 9,438 |
| 429. | 2.84 | Northgate School District / 13,075 |
| 429. | 2.84 | Shikellamy School District / 22,592 |
| 429. | 2.84 | Montoursville Area School District / 13,205 |
| 429. | 2.84 | Smethport Area School District / 6,134 |
| 429. | 2.84 | Huntingdon Area School District / 20,447 |
| 429. | 2.84 | Western Beaver County School District / 5,428 |
| 429. | 2.84 | Westmont Hilltop School District / 12,914 |
| 429. | 2.84 | Reynolds School District / 9,618 |
| 429. | 2.84 | Clairton City School District / 6,796 |
| 429. | 2.84 | Blue Ridge School District / 7,744 |
| 429. | 2.84 | Keystone Oaks School District / 20,963 |
| 429. | 2.84 | Philipsburg-Osceola Area School District / 15,412 |
| 429. | 2.84 | Kane Area School District / 7,436 |
| 429. | 2.84 | Highlands School District / 20,627 |
| 429. | 2.84 | Jefferson-Morgan School District / 5,902 |
| 446. | 2.83 | Warren County School District / 38,402 |
| 446. | 2.83 | Neshannock Township School District / 9,609 |
| 446. | 2.83 | Mount Carmel Area School District / 12,577 |
| 446. | 2.83 | Ambridge Area School District / 23,827 |
| 446. | 2.83 | Frazier School District / 8,015 |
| 446. | 2.83 | North Hills School District / 37,876 |
| 446. | 2.83 | Valley Grove School District / 6,901 |
| 446. | 2.83 | Freedom Area School District / 11,105 |
| 446. | 2.83 | North Schuylkill School District / 16,977 |
| 446. | 2.83 | Cornell School District / 6,761 |
| 446. | 2.83 | Curwensville Area School District / 7,365 |
| 457. | 2.82 | East Allegheny School District / 15,125 |
| 457. | 2.82 | Laurel Highlands School District / 23,409 |
| 457. | 2.82 | Wilkinsburg Borough School District / 15,930 |
| 457. | 2.82 | Washington School District / 15,897 |
| 457. | 2.82 | Wallenpaupack Area School District / 25,535 |
| 457. | 2.82 | Clarion-Limestone Area School District / 8,132 |
| 457. | 2.82 | Wellsboro Area School District / 11,793 |
| 457. | 2.82 | Bedford Area School District / 16,838 |
| 457. | 2.82 | Ringgold School District / 26,102 |
| 457. | 2.82 | Turkeyfoot Valley Area School District / 2,789 |
| 457. | 2.82 | Somerset Area School District / 21,327 |
| 457. | 2.82 | St. Marys Area School District / 18,979 |
| 457. | 2.82 | Woodland Hills School District / 46,882 |
| 457. | 2.82 | Trinity Area School District / 26,065 |
| 471. | 2.81 | Chartiers-Houston School District / 9,114 |
| 471. | 2.81 | Chartiers Valley School District / 30,496 |
| 471. | 2.81 | Hempfield Area School District / 50,268 |
| 471. | 2.81 | Benton Area School District / 5,233 |
| 471. | 2.81 | Conemaugh Township Area School District / 8,178 |
| 471. | 2.81 | Homer-Center School District / 6,471 |
| 471. | 2.81 | Windber Area School District / 8,881 |
| 478. | 2.80 | Clearfield Area School District / 19,134 |
| 478. | 2.80 | Saint Clair Area School District / 6,695 |
| 478. | 2.80 | Derry Area School District / 17,750 |
| 478. | 2.80 | Mount Pleasant Area School District / 17,888 |
| 478. | 2.80 | Hermitage School District / 16,220 |
| 483. | 2.79 | Cranberry Area School District / 9,495 |
| 483. | 2.79 | Jamestown Area School District / 4,249 |
| 483. | 2.79 | Richland School District / 14,921 |
| 483. | 2.79 | Greater Johnstown School District / 27,676 |
| 483. | 2.79 | California Area School District / 11,182 |
| 483. | 2.79 | Monessen City School District / 7,720 |
| 489. | 2.78 | Clarion Area School District / 8,997 |
| 489. | 2.78 | Ligonier Valley School District / 16,184 |
| 489. | 2.78 | Indiana Area School District / 32,924 |
| 489. | 2.78 | Greensburg Salem School District / 26,086 |
| 489. | 2.78 | Leechburg Area School District / 5,946 |
| 494. | 2.76 | Cameron County School District / 5,085 |
| 495. | 2.75 | Loyalsock Township School District / 11,026 |
| 496. | 2.71 | Austin Area School District / 1,278 |
| 496. | 2.71 | Galeton Area School District / 2,929 |
| 498. | 2.70 | Allegheny Valley School District / 9,708 |
| 498. | 2.70 | Sullivan County School District / 6,428 |
| 500. | 2.65 | Forest Area School District / 8,287 |
Please note that we only rank locations with 'Average Family Size' data. The rank above might not be a complete list. Locations without 'Average Family Size' data are not listed.
