Market insights · New Jersey
Somerset County, NJ: growth, migration and housing
Somerset County has 356,486 residents, up 3.5% since 2020 (+0.4% in the last year). In 2022–2023, 10,754 households moved in and 11,486 moved out (-732 net), while a net $224.4M of income left. Median household income is $140,374, the median home $552,100 and median rent $2,033 a month.
In New Jersey: 5th of 21 counties for 5-year population growth · 13th of 21 counties for net in-migration (per resident) · 2nd of 21 counties for median household income · 4th of 21 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Somerset County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Middlesex County, NJ | 2,662 | $253.8M |
| Union County, NJ | 1,238 | $107.5M |
| Morris County, NJ | 674 | $143.5M |
| Hudson County, NJ | 515 | $82.9M |
| Essex County, NJ | 483 | $52.3M |
| Hunterdon County, NJ | 400 | $54.6M |
| Mercer County, NJ | 327 | $43.5M |
| Bergen County, NJ | 245 | $31.4M |
Where leavers went
Top counties by households leaving Somerset County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Middlesex County, NJ | 1,868 | $143.9M |
| Union County, NJ | 713 | $55.7M |
| Hunterdon County, NJ | 689 | $83.1M |
| Morris County, NJ | 538 | $95.5M |
| New York County, NY | 446 | $116.8M |
| Hudson County, NJ | 433 | $52.5M |
| Mercer County, NJ | 428 | $54.2M |
| Monmouth County, NJ | 305 | $49.1M |
BizyFi in Somerset County
Fewer than 3 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse New Jersey companies.
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Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.