# Counties in Massachusetts by average household size, 2024

All 14 values come from U.S. Census Bureau for 2024, so the places are comparable.

- Indicator id: `average_household_size`
- Unit: persons per household
- Definition: Average number of persons per private household. EU countries: EU-SILC. United States: American Community Survey five-year estimate of people in households divided by occupied housing units, where the period shown is the last year of the five-year span.
- Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25010: average household size of occupied housing units (https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat)
- Publisher page: https://invokely.ai/en/publishers/us-census-bureau
- Retrieved: 2026-10-12
- Citation: U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/average-household-size/massachusetts-counties

| Rank | Place | persons per household |
|---:|---|---:|
| 1 | Dukes County | 2.7 |
| 2 | Nantucket County | 2.7 |
| 3 | Plymouth County | 2.6 |
| 4 | Essex County | 2.5 |
| 5 | Norfolk County | 2.5 |
| 6 | Worcester County | 2.5 |
| 7 | Middlesex County | 2.5 |
| 8 | Hampden County | 2.4 |
| 9 | Bristol County | 2.4 |
| 10 | Suffolk County | 2.3 |
| 11 | Hampshire County | 2.2 |
| 12 | Franklin County | 2.2 |
| 13 | Barnstable County | 2.2 |
| 14 | Berkshire County | 2.1 |