Migration to and from Somerset County, New Jersey

Where Somerset County residents came from and where they went over the 5-year window 2016-2020. Census ACS County-to-County Migration Flows, 2020 5-yr (frozen vintage).

Total inflow
19,362
people moved in (5-yr)
Total outflow
23,014
people moved out (5-yr)
Net migration
-3,652
inflow minus outflow

Top 10 counties people moved IN from

OriginState / RegionPeople (5-yr)
Middlesex CountyNew Jersey5,131
Union CountyNew Jersey2,156
Asia1,454
Morris CountyNew Jersey901
Hunterdon CountyNew Jersey668
Bergen CountyNew Jersey651
Hudson CountyNew Jersey622
Essex CountyNew Jersey387
Mercer CountyNew Jersey337
Monmouth CountyNew Jersey326

Top 10 counties people moved OUT to

DestinationState / RegionPeople (5-yr)
Middlesex CountyNew Jersey4,534
Mercer CountyNew Jersey1,269
Hunterdon CountyNew Jersey914
Union CountyNew Jersey861
Ocean CountyNew Jersey809
Morris CountyNew Jersey771
Wake CountyNorth Carolina631
Warren CountyNew Jersey472
Monmouth CountyNew Jersey400
Essex CountyNew Jersey366

Explore Somerset County

Methodology

  • Counts represent the number of people aged 1+ who reported a different residence at the survey reference date than they did one year earlier, aggregated across the 5-year sample window 2016-2020.
  • Outbound (OUT) flows are reported less frequently than inbound (IN) because the survey captures the destination side of each move. Many county pairs have null OUT counts, which is normal.
  • "Total inflow" sums the published MOVEDIN counts across all origin counties, including foreign-region inflows (Africa, Asia, Central America, etc.). It is not the same as net population change.
  • Frozen vintage. The Census Bureau has not released a newer county-to-county migration flows file. The 2020 5-yr vintage (covering 2016-2020) is the latest available as of build date.

Source: U.S. Census Bureau, American Community Survey, County-to-County Migration Flows: 2016-2020. Vintage: 2020 5-yr. Generated: 2026-05-28. FIPS: 34035.