| Rank | Average Family Size ▼ | School District / Population |
| 1. | 3.64 | Central Falls School District / 19,391 |
| 2. | 3.52 | Providence School District / 178,286 |
| 3. | 3.32 | Barrington School District / 16,501 |
| 4. | 3.27 | Burrillville School District / 15,971 |
| 5. | 3.26 | Woonsocket School District / 41,682 |
| 6. | 3.26 | Foster Elementary School District / 4,556 |
| 7. | 3.24 | Pawtucket School District / 71,662 |
| 8. | 3.23 | Scituate School District / 10,337 |
| 9. | 3.22 | Foster-Glocester Regional School District / 14,361 |
| 10. | 3.20 | Lincoln School District / 21,120 |
| 11. | 3.20 | Glocester Elementary School District / 9,805 |
| 12. | 3.19 | Cranston School District / 80,580 |
| 13. | 3.17 | North Kingstown School District / 26,611 |
| 14. | 3.16 | Johnston School District / 28,752 |
| 15. | 3.14 | Coventry School District / 35,040 |
| 16. | 3.14 | Cumberland School District / 33,291 |
| 17. | 3.13 | Exeter-West Greenwich Regional School District / 12,511 |
| 18. | 3.12 | East Greenwich School District / 13,187 |
| 19. | 3.11 | Name N/A / 35,816 |
| 20. | 3.09 | East Providence School District / 47,491 |
| 21. | 3.09 | North Providence School District / 32,244 |
| 22. | 3.08 | Middletown School District / 16,362 |
| 23. | 3.08 | North Smithfield School District / 11,768 |
| 24. | 3.08 | West Warwick School District / 29,358 |
| 25. | 3.06 | Warwick School District / 83,676 |
| 26. | 3.06 | South Kingstown School District / 30,226 |
| 27. | 3.05 | Smithfield School District / 21,477 |
| 28. | 3.04 | Chariho Regional School District / 23,716 |
| 29. | 3.03 | Westerly School District / 22,949 |
| 30. | 3.02 | Little Compton School District / 3,508 |
| 31. | 3.02 | Bristol-Warren Regional School District / 34,000 |
| 32. | 2.96 | Portsmouth School District / 17,316 |
| 33. | 2.94 | Tiverton School District / 15,674 |
| 34. | 2.91 | Narragansett School District / 16,034 |
| 35. | 2.86 | Newport School District / 24,957 |
| 36. | 2.85 | Jamestown School District / 5,436 |
| 37. | 2.65 | New Shoreham School District / 914 |
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.
*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.
