| Rank | Percentage of House with a Mortgage where Monthly Holding Costs $300-$500 ▼ | School District / Population |
| 1. | 10.4% | Menominee Indian School District / 4,274 |
| 2. | 7.7% | Mellen School District / 1,907 |
| 3. | 7.2% | Boscobel Area School District / 5,590 |
| 4. | 6.7% | Wausaukee School District / 4,071 |
| 5. | 6.6% | Fall Creek School District / 3,894 |
| 6. | 6.6% | Hurley School District / 3,972 |
| 7. | 6.3% | Ladysmith-Hawkins School District / 6,043 |
| 8. | 5.9% | Wabeno Area School District / 3,771 |
| 9. | 5.8% | Antigo School District / 17,735 |
| 10. | 5.7% | Prentice School District / 2,950 |
| 11. | 5.6% | Owen-Withee School District / 4,417 |
| 12. | 5.3% | Kickapoo Area School District / 2,951 |
| 13. | 5.3% | Flambeau School District / 3,580 |
| 14. | 5.2% | Phelps School District / 1,472 |
| 15. | 4.9% | Trevor-Wilmot Consolidated School District / 3,697 |
| 16. | 4.8% | Blair-Taylor School District / 4,266 |
| 17. | 4.6% | Washington School District / 716 |
| 18. | 4.5% | New London School District / 15,499 |
| 19. | 4.5% | Norwalk-Ontario-Wilton School District / 2,985 |
| 20. | 4.5% | Wauzeka-Steuben School District / 1,706 |
| 21. | 4.4% | Chequamegon School District / 6,680 |
| 22. | 4.4% | Woodruff Joint No. 1 School District / 5,340 |
| 23. | 4.3% | River Ridge School District / 3,712 |
| 24. | 4.3% | Nekoosa School District / 9,041 |
| 25. | 4.3% | Bowler School District / 2,555 |
| 26. | 4.3% | Florence School District / 4,486 |
| 27. | 4.3% | South Shore School District / 1,696 |
| 28. | 4.2% | Goodman-Armstrong School District / 919 |
| 29. | 4.2% | Bristol No. 1 School District / 4,818 |
| 30. | 4.0% | Dover No. 1 School District / 1,824 |
| 31. | 4.0% | Freedom Area School District / 9,014 |
| 32. | 3.9% | Neillsville School District / 6,710 |
| 33. | 3.9% | Linn Joint No. 6 School District / 844 |
| 34. | 3.9% | Birchwood School District / 2,094 |
| 35. | 3.8% | Algoma School District / 5,367 |
| 36. | 3.8% | Laona School District / 1,491 |
| 37. | 3.7% | Thorp School District / 4,366 |
| 38. | 3.6% | Sevastopol School District / 4,844 |
| 39. | 3.6% | Northwood School District / 3,122 |
| 40. | 3.6% | Prairie du Chien Area School District / 8,530 |
| 41. | 3.5% | New Lisbon School District / 5,191 |
| 42. | 3.4% | Whitehall School District / 5,165 |
| 43. | 3.4% | Tigerton School District / 1,872 |
| 44. | 3.3% | White Lake School District / 1,430 |
| 44. | 3.3% | Wautoma Area School District / 11,098 |
| 46. | 3.3% | Cashton School District / 3,688 |
| 47. | 3.3% | Lac du Flambeau No. 1 School District / 3,442 |
| 48. | 3.3% | Bruce School District / 3,734 |
| 49. | 3.3% | Gillett School District / 4,124 |
| 50. | 3.2% | Cassville School District / 2,179 |
| 51. | 3.2% | Gresham School District / 1,966 |
| 52. | 3.1% | Gilman School District / 2,994 |
| 53. | 3.1% | La Farge School District / 1,946 |
| 54. | 3.1% | Coleman School District / 4,953 |
| 55. | 3.1% | Manawa School District / 4,940 |
| 56. | 3.1% | Fennimore Community School District / 4,749 |
| 57. | 3.0% | North Lakeland School District / 2,573 |
| 57. | 3.0% | Marinette School District / 15,436 |
| 59. | 3.0% | Suring School District / 3,947 |
| 60. | 3.0% | Elcho School District / 3,455 |
| 61. | 3.0% | Rosholt School District / 3,766 |
| 62. | 3.0% | Northland Pines School District / 11,080 |
| 62. | 3.0% | Necedah Area School District / 4,769 |
| 64. | 2.9% | Rhinelander School District / 20,298 |
| 65. | 2.9% | Sharon Joint No. 11 School District / 1,876 |
| 66. | 2.9% | Wisconsin Rapids School District / 34,539 |
| 67. | 2.9% | Alma Center School District / 3,037 |
| 68. | 2.9% | Crandon School District / 5,884 |
| 69. | 2.9% | Wild Rose School District / 5,316 |
| 70. | 2.9% | Lakeland Union High School District / 18,116 |
| 71. | 2.8% | Potosi School District / 2,400 |
| 72. | 2.8% | Wonewoc-Union Center School District / 3,244 |
| 73. | 2.7% | Juda School District / 1,389 |
| 74. | 2.7% | Drummond Area School District / 4,634 |
| 75. | 2.6% | Cudahy School District / 18,251 |
| 76. | 2.6% | North Crawford School District / 3,190 |
| 77. | 2.6% | Crivitz School District / 5,983 |
| 78. | 2.5% | Adams-Friendship Area School District / 14,675 |
| 79. | 2.5% | Viroqua Area School District / 8,847 |
| 80. | 2.5% | Washburn School District / 3,922 |
| 81. | 2.5% | Iowa-Grant School District / 4,489 |
| 81. | 2.5% | Oconto School District / 7,342 |
| 83. | 2.5% | Superior School District / 33,591 |
| 83. | 2.5% | Hillsboro School District / 4,617 |
| 85. | 2.4% | Princeton School District / 3,107 |
| 86. | 2.4% | Barron Area School District / 8,920 |
| 87. | 2.4% | Spooner Area School District / 10,363 |
| 88. | 2.4% | Neosho Joint No. 3 School District / 2,094 |
| 88. | 2.4% | Cornell School District / 2,733 |
| 90. | 2.3% | Stanley-Boyd Area School District / 7,524 |
| 90. | 2.3% | Solon Springs School District / 2,001 |
| 92. | 2.3% | Name N/A / 8,433 |
| 93. | 2.3% | Glenwood City School District / 3,854 |
| 93. | 2.3% | West De Pere School District / 19,892 |
| 93. | 2.3% | Peshtigo School District / 6,228 |
| 96. | 2.3% | Frederic School District / 3,659 |
| 97. | 2.2% | Tri-County Area School District / 3,963 |
| 98. | 2.2% | Burlington Area School District / 23,174 |
| 99. | 2.2% | Medford Area School District / 14,376 |
| 100. | 2.1% | Wittenberg-Birnamwood School District / 7,865 |
| 101. | 2.1% | Auburndale School District / 4,529 |
| 102. | 2.1% | Rib Lake School District / 2,775 |
| 103. | 2.1% | Clayton School District / 1,931 |
| 103. | 2.1% | Riverdale School District / 4,839 |
| 105. | 2.1% | Black River Falls School District / 12,234 |
| 105. | 2.1% | Mondovi School District / 5,826 |
| 107. | 2.0% | Phillips School District / 6,061 |
| 108. | 2.0% | Pardeeville Area School District / 6,895 |
| 108. | 2.0% | Siren School District / 3,061 |
| 110. | 2.0% | New Auburn School District / 1,820 |
| 110. | 2.0% | Stratford School District / 5,112 |
| 112. | 2.0% | Webster School District / 5,634 |
| 112. | 2.0% | Colby School District / 6,732 |
| 114. | 2.0% | Southwestern Wisconsin School District / 3,943 |
| 115. | 2.0% | Beloit School District / 36,723 |
| 116. | 2.0% | Mercer School District / 1,670 |
| 117. | 1.9% | Lake Country School District / 4,741 |
| 117. | 1.9% | Weyauwega-Fremont School District / 7,021 |
| 119. | 1.9% | Three Lakes School District / 4,230 |
| 120. | 1.9% | Green Lake School District / 2,752 |
| 120. | 1.9% | St. Francis School District / 9,365 |
| 122. | 1.9% | Clintonville School District / 10,096 |
| 122. | 1.9% | Spencer School District / 4,556 |
| 124. | 1.9% | Hayward Community School District / 13,279 |
| 125. | 1.9% | Osseo-Fairchild School District / 5,340 |
| 126. | 1.8% | Almond-Bancroft School District / 2,701 |
| 127. | 1.8% | Abbotsford School District / 3,459 |
| 128. | 1.8% | Marion School District / 3,980 |
| 128. | 1.8% | De Soto Area School District / 3,936 |
| 130. | 1.8% | Westby Area School District / 7,727 |
| 131. | 1.8% | Kewaunee School District / 6,700 |
| 131. | 1.8% | Bangor School District / 4,053 |
| 133. | 1.8% | Beloit Turner School District / 8,753 |
| 133. | 1.8% | Alma School District / 1,624 |
| 135. | 1.7% | Sheboygan Area School District / 60,985 |
| 136. | 1.7% | Unity School District / 7,132 |
| 137. | 1.7% | Niagara School District / 2,417 |
| 138. | 1.7% | Iola-Scandinavia School District / 4,646 |
| 139. | 1.7% | Randall Joint No. 1 School District / 5,338 |
| 139. | 1.7% | Sparta Area School District / 16,882 |
| 141. | 1.7% | Markesan School District / 6,482 |
| 142. | 1.7% | Shawano School District / 17,415 |
| 142. | 1.7% | Oakfield School District / 3,183 |
| 142. | 1.7% | Eau Claire Area School District / 81,106 |
| 142. | 1.7% | Turtle Lake School District / 3,563 |
| 146. | 1.6% | Bayfield School District / 2,818 |
| 147. | 1.6% | Grantsburg School District / 4,756 |
| 148. | 1.6% | Wilmot Union High School District / 18,948 |
| 148. | 1.6% | Prairie Farm School District / 1,690 |
| 150. | 1.6% | Ashland School District / 12,231 |
| 151. | 1.6% | Greenwood School District / 3,694 |
| 151. | 1.6% | Richland School District / 11,315 |
| 153. | 1.6% | Tomahawk School District / 9,867 |
| 154. | 1.5% | Albany School District / 2,873 |
| 155. | 1.5% | Plum City School District / 1,663 |
| 156. | 1.5% | Baraboo School District / 20,337 |
| 157. | 1.5% | Melrose-Mindoro School District / 3,927 |
| 158. | 1.5% | Shell Lake School District / 3,589 |
| 158. | 1.5% | Rice Lake Area School District / 15,885 |
| 160. | 1.5% | Hilbert School District / 2,857 |
| 161. | 1.5% | Shullsburg School District / 2,224 |
| 161. | 1.5% | Minocqua Joint No. 1 School District / 6,761 |
| 161. | 1.5% | Palmyra-Eagle Area School District / 7,258 |
| 164. | 1.5% | Darlington Community School District / 5,159 |
| 165. | 1.4% | Bonduel School District / 6,523 |
| 166. | 1.4% | Little Chute Area School District / 8,180 |
| 166. | 1.4% | Beecher-Dunbar-Pembine School District / 2,833 |
| 168. | 1.4% | Seymour Community School District / 12,861 |
| 169. | 1.4% | Big Foot Union High School District / 9,072 |
| 170. | 1.4% | Rio Community School District / 3,030 |
| 170. | 1.4% | Tomorrow River School District / 5,035 |
| 170. | 1.4% | New Holstein School District / 8,931 |
| 173. | 1.4% | Gibraltar Area School District / 5,721 |
| 174. | 1.3% | River Valley School District / 9,368 |
| 175. | 1.3% | Chippewa Falls Area School District / 33,121 |
| 176. | 1.3% | Waterloo School District / 5,472 |
| 177. | 1.3% | Edgar School District / 3,606 |
| 178. | 1.3% | Port Edwards School District / 4,099 |
| 178. | 1.3% | D.C. Everest Area School District / 33,597 |
| 180. | 1.3% | Howards Grove School District / 6,016 |
| 181. | 1.3% | Pittsville School District / 3,881 |
| 181. | 1.3% | Reedsville School District / 4,626 |
| 181. | 1.3% | Montello School District / 6,294 |
| 181. | 1.3% | Oshkosh Area School District / 79,941 |
| 181. | 1.3% | Southern Door County School District / 8,071 |
| 186. | 1.2% | Stockbridge School District / 1,961 |
| 186. | 1.2% | Jefferson School District / 13,377 |
| 188. | 1.2% | Menasha School District / 24,903 |
| 189. | 1.2% | Lancaster Community School District / 6,183 |
| 189. | 1.2% | St. Croix Falls School District / 6,776 |
| 189. | 1.2% | South Milwaukee School District / 21,119 |
| 192. | 1.2% | New Richmond School District / 17,415 |
| 192. | 1.2% | Manitowoc School District / 39,139 |
| 194. | 1.2% | Mukwonago School District / 28,642 |
| 194. | 1.2% | Elk Mound Area School District / 4,533 |
| 194. | 1.2% | Augusta School District / 4,826 |
| 194. | 1.2% | Ripon Area School District / 10,768 |
| 194. | 1.2% | Portage Community School District / 17,464 |
| 199. | 1.2% | Brodhead School District / 6,327 |
| 200. | 1.2% | Stone Bank School District / 2,674 |
| 200. | 1.2% | Racine School District / 138,878 |
| 200. | 1.2% | Omro School District / 7,837 |
| 203. | 1.2% | Durand School District / 7,490 |
| 204. | 1.1% | Marshfield School District / 27,346 |
| 204. | 1.1% | Black Hawk School District / 2,583 |
| 204. | 1.1% | Lomira School District / 6,726 |
| 204. | 1.1% | Platteville School District / 14,589 |
| 204. | 1.1% | Westosha Central High School District / 19,427 |
| 209. | 1.1% | Westfield School District / 9,180 |
| 209. | 1.1% | Horicon School District / 5,518 |
| 209. | 1.1% | West Salem School District / 9,760 |
| 212. | 1.1% | West Bend School District / 51,521 |
| 212. | 1.1% | Brown Deer School District / 11,980 |
| 214. | 1.1% | Wrightstown Community School District / 6,844 |
| 215. | 1.1% | Richmond School District / 2,815 |
| 216. | 1.1% | Tomah Area School District / 20,165 |
| 216. | 1.1% | Cadott Community School District / 5,102 |
| 218. | 1.1% | Walworth Joint No. 1 School District / 3,997 |
| 219. | 1.1% | Campbellsport School District / 10,652 |
| 219. | 1.1% | Green Bay Area School District / 136,304 |
| 219. | 1.1% | Oconto Falls School District / 11,022 |
| 222. | 1.0% | Cochrane-Fountain City School District / 4,470 |
| 222. | 1.0% | Lake Geneva Joint No. 1 School District / 16,963 |
| 224. | 1.0% | Port Washington-Saukville School District / 16,846 |
| 225. | 1.0% | Maple School District / 7,978 |
| 226. | 1.0% | Janesville School District / 63,046 |
| 226. | 1.0% | Holmen School District / 19,651 |
| 226. | 1.0% | Loyal School District / 4,126 |
| 229. | 1.0% | Belmont Community School District / 1,998 |
| 229. | 1.0% | Two Rivers School District / 12,950 |
| 229. | 1.0% | Mineral Point School District / 4,613 |
| 232. | 1.0% | Eleva-Strum School District / 3,555 |
| 232. | 1.0% | Denmark School District / 8,698 |
| 232. | 1.0% | Richfield Joint No. 1 School District / 4,439 |
| 235. | 1.0% | Whitnall School District / 17,503 |
| 236. | 0.9% | Boyceville Community School District / 4,552 |
| 236. | 0.9% | Brillion School District / 5,592 |
| 238. | 0.9% | Paris Joint No. 1 School District / 1,874 |
| 239. | 0.9% | Osceola School District / 9,145 |
| 240. | 0.9% | Elkhart Lake-Glenbeulah School District / 3,646 |
| 240. | 0.9% | Name N/A / 213,319 |
| 242. | 0.9% | Milwaukee School District / 594,260 |
| 242. | 0.9% | Howard-Suamico School District / 28,532 |
| 244. | 0.9% | Merrill Area School District / 20,784 |
| 244. | 0.9% | Pulaski Community School District / 19,999 |
| 246. | 0.9% | Kewaskum School District / 14,141 |
| 247. | 0.9% | Kettle Moraine School District / 24,829 |
| 248. | 0.8% | Lake Geneva-Genoa City Union High School District / 24,508 |
| 248. | 0.8% | Arcadia School District / 5,653 |
| 248. | 0.8% | Wisconsin Dells School District / 12,195 |
| 251. | 0.8% | Dodgeland School District / 6,232 |
| 251. | 0.8% | Wausau School District / 54,266 |
| 253. | 0.8% | Waupaca School District / 15,858 |
| 254. | 0.8% | Winter School District / 2,847 |
| 254. | 0.8% | Appleton Area School District / 94,486 |
| 256. | 0.8% | Galesville-Ettrick-Trempealeau School District / 8,561 |
| 257. | 0.8% | Fort Atkinson School District / 18,361 |
| 257. | 0.8% | Monroe School District / 15,857 |
| 259. | 0.8% | Greenfield School District / 28,825 |
| 259. | 0.8% | Mishicot School District / 6,131 |
| 259. | 0.8% | Butternut School District / 1,266 |
| 259. | 0.8% | Somerset School District / 7,908 |
| 263. | 0.8% | West Allis School District / 68,742 |
| 263. | 0.8% | Weston School District / 2,316 |
| 265. | 0.8% | Stevens Point Area School District / 56,668 |
| 265. | 0.8% | Hartford Joint No. 1 School District / 17,330 |
| 267. | 0.7% | Elkhorn Area School District / 17,939 |
| 268. | 0.7% | Elmwood School District / 2,238 |
| 268. | 0.7% | Sauk Prairie School District / 15,534 |
| 268. | 0.7% | Waupun School District / 18,904 |
| 268. | 0.7% | Hartford Union High School District / 31,949 |
| 268. | 0.7% | Delavan-Darien School District / 17,203 |
| 268. | 0.7% | North Lake School District / 2,971 |
| 274. | 0.7% | Genoa City Joint No. 2 School District / 5,211 |
| 275. | 0.7% | Muskego-Norway School District / 29,209 |
| 275. | 0.7% | Berlin Area School District / 10,636 |
| 277. | 0.7% | Royall School District / 5,559 |
| 277. | 0.7% | Sheboygan Falls School District / 11,566 |
| 279. | 0.7% | Ellsworth Community School District / 11,203 |
| 279. | 0.7% | Altoona School District / 8,910 |
| 281. | 0.7% | Cumberland School District / 5,816 |
| 282. | 0.6% | Kimberly Area School District / 25,942 |
| 282. | 0.6% | Highland School District / 1,671 |
| 284. | 0.6% | Seneca School District / 1,608 |
| 284. | 0.6% | Beaver Dam School District / 22,560 |
| 286. | 0.6% | Bloomer School District / 7,275 |
| 287. | 0.6% | Lake Holcombe School District / 2,460 |
| 287. | 0.6% | Baldwin-Woodville Area School District / 8,467 |
| 289. | 0.6% | Neenah School District / 44,048 |
| 289. | 0.6% | Wisconsin Heights School District / 5,975 |
| 291. | 0.6% | Luxemburg-Casco School District / 10,979 |
| 291. | 0.6% | Watertown School District / 30,876 |
| 293. | 0.6% | Ithaca School District / 1,898 |
| 294. | 0.6% | Granton Area School District / 2,130 |
| 295. | 0.5% | Independence School District / 2,609 |
| 295. | 0.5% | Mauston School District / 10,096 |
| 295. | 0.5% | Monticello School District / 2,482 |
| 295. | 0.5% | Yorkville Joint No. 2 School District / 2,803 |
| 295. | 0.5% | Pepin Area School District / 1,997 |
| 300. | 0.5% | Whitewater School District / 19,822 |
| 300. | 0.5% | Chilton School District / 7,104 |
| 302. | 0.5% | Poynette School District / 6,343 |
| 302. | 0.5% | Milton School District / 18,878 |
| 302. | 0.5% | Arrowhead Union High School District / 34,358 |
| 302. | 0.5% | Glendale-River Hills School District / 12,664 |
| 306. | 0.5% | Athens School District / 4,414 |
| 306. | 0.5% | Cuba City School District / 4,749 |
| 306. | 0.5% | Oconomowoc Area School District / 32,686 |
| 306. | 0.5% | Union Grove Union High School District / 13,252 |
| 306. | 0.5% | Cameron School District / 5,070 |
| 311. | 0.5% | Grafton School District / 14,470 |
| 311. | 0.5% | Herman No. 22 School District / 1,689 |
| 313. | 0.5% | Reedsburg School District / 16,457 |
| 314. | 0.5% | Cambria-Friesland School District / 2,231 |
| 314. | 0.5% | Gilmanton School District / 1,206 |
| 316. | 0.4% | Mequon-Thiensville School District / 26,457 |
| 316. | 0.4% | Kiel Area School District / 8,819 |
| 316. | 0.4% | McFarland School District / 10,132 |
| 316. | 0.4% | Mayville School District / 7,853 |
| 320. | 0.4% | Ashwaubenon School District / 16,360 |
| 320. | 0.4% | Colfax School District / 4,575 |
| 322. | 0.4% | Menomonee Falls School District / 28,613 |
| 323. | 0.4% | Kenosha School District / 127,921 |
| 324. | 0.4% | Rosendale-Brandon School District / 5,418 |
| 324. | 0.4% | Fond du Lac School District / 52,549 |
| 326. | 0.4% | Onalaska School District / 17,255 |
| 327. | 0.4% | Lena School District / 2,586 |
| 328. | 0.4% | Oak Creek-Franklin School District / 39,009 |
| 328. | 0.4% | La Crosse School District / 63,061 |
| 328. | 0.4% | Pewaukee School District / 16,961 |
| 328. | 0.4% | Kaukauna Area School District / 22,706 |
| 328. | 0.4% | Hudson School District / 29,970 |
| 328. | 0.4% | Germantown School District / 25,626 |
| 334. | 0.4% | Wauwatosa School District / 46,457 |
| 335. | 0.4% | Luck School District / 3,653 |
| 336. | 0.3% | Cambridge School District / 5,815 |
| 337. | 0.3% | Waukesha School District / 92,659 |
| 338. | 0.3% | New Berlin School District / 34,658 |
| 338. | 0.3% | DeForest Area School District / 19,617 |
| 338. | 0.3% | Dodgeville School District / 7,964 |
| 338. | 0.3% | Parkview School District / 6,171 |
| 342. | 0.3% | Clear Lake School District / 3,181 |
| 342. | 0.3% | Hamilton School District / 26,157 |
| 344. | 0.3% | Argyle School District / 1,912 |
| 344. | 0.3% | Waunakee Community School District / 18,207 |
| 346. | 0.3% | Cedarburg School District / 19,473 |
| 347. | 0.2% | Middleton-Cross Plains School District / 38,506 |
| 347. | 0.2% | Nicolet Union High School District / 25,475 |
| 347. | 0.2% | Monona Grove School District / 17,268 |
| 350. | 0.2% | Evansville Community School District / 9,627 |
| 350. | 0.2% | Winneconne Community School District / 8,725 |
| 350. | 0.2% | Amery School District / 9,858 |
| 353. | 0.2% | North Fond du Lac School District / 7,977 |
| 353. | 0.2% | Random Lake School District / 6,124 |
| 355. | 0.2% | Shiocton School District / 4,217 |
| 355. | 0.2% | Valders Area School District / 7,094 |
| 357. | 0.2% | St. Croix Central School District / 7,437 |
| 358. | 0.2% | Madison Metropolitan School District / 227,184 |
| 359. | 0.2% | Sun Prairie Area School District / 42,002 |
| 360. | 0.2% | Cedar Grove-Belgium Area School District / 5,658 |
| 360. | 0.2% | Oregon School District / 19,779 |
| 362. | 0.1% | Stoughton Area School District / 21,192 |
| 363. | 0.1% | Mount Horeb Area School District / 11,939 |
| 363. | 0.1% | Hortonville School District / 19,216 |
| 363. | 0.1% | Verona Area School District / 37,836 |
| 366. | 0.1% | Mosinee School District / 11,820 |
| 367. | 0.1% | De Pere Unified School District / 20,790 |
| 367. | 0.1% | Menomonie Area School District / 27,164 |
| 367. | 0.1% | Elmbrook School District / 44,852 |
| 367. | 0.1% | River Falls School District / 22,886 |
| 371. | 0.1% | East Troy Community School District / 11,922 |
Please note that we only rank locations with 'Percentage of House with a Mortgage where Monthly Holding Costs $300-$500' data. The rank above might not be a complete list. Locations without 'Percentage of House with a Mortgage where Monthly Holding Costs $300-$500' data are not listed.
*ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
