Somerville, New Jersey Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Somerville, New Jersey is 12,958 as of the 2023 American Community Survey, making it the 105th-largest city in New Jersey. The median household income is $103,869, the median home value is $403,600, and the median age is 35.5.
The population has grown 19.2% since 2010 (12,107 → 14,428).
12,958
Population
5542
People / sq mi
$103,869
Median Income
$403,600
Median Home Value
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Somerville covers 2.3 sq mi of land at 5542 people per square mile.
About Somerville, NJ
The poverty rate is what most separates Somerville from the typical city: 1.2% of residents live below the federal poverty line, against 12.4% nationally. Somerville is a city in New Jersey with a population of 12,958.
Median household income is $103,869, above the US median of $78,538. Hardship is rare relative to US cities: a poverty rate of just 1.2%, below the national 12.4%. The typical home is valued at $403,600, with typical rent around $1,748.
College attainment is above the local norm at 53.5%, above the national 35.0%. A solid 15.9% of workers are based at home, above the national 14.0%, and the average commute runs about 26 minutes each way.
Somerville borough Population History (2010-2024)
The city of Somerville borough had a population of 12,107 in 2010 and 14,428 in 2024, a 19.2% growth over 14 years. The peak was 14,428 in 2024. Average annual growth rate: 1.29%.
14,428
Population (2024)
12,107
Population (2010)
14,428
Peak (2024)
1.29%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 12,107 |
| 2011 | 12,141 |
| 2012 | 12,140 |
| 2013 | 12,118 |
| 2014 | 12,084 |
| 2015 | 12,030 |
| 2016 | 11,997 |
| 2017 | 12,210 |
| 2018 | 12,161 |
| 2019 | 12,063 |
| 2020 | 12,357 |
| 2021 | 12,593 |
| 2022 | 13,408 |
| 2023 | 14,241 |
| 2024 | 14,428 |
Race & Ethnicity
| White | 60.5% |
| Black or African American | 10.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Economy & Income
$103,869
Median Household Income
$54,478
Per Capita Income
1.2%
Poverty Rate
2.9%
Unemployment Rate
Housing
$403,600
Median Home Value
$1,748
Median Rent
44.5%
Owner-Occupied
Education
91.4%
High School+
53.5%
Bachelor's+
Commute
2.9%
Drive Alone
64.3%
Public Transit
15.9%
Work From Home
25.7 min
Avg Commute
Community Profile
14.9%
Foreign Born
65.5%
Non-English at Home
4.6%
Veterans
9.3%
With Disability
92.2%
Health Insurance
98.9%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 26.9% |
| Finance, Insurance & Real Estate | 13.6% |
| Manufacturing | 11.1% |
| Education, Health Care & Social Services | 8.9% |
| Information | 5.9% |
| Construction | 5.5% |
| Retail Trade | 3.8% |
| Arts, Entertainment & Food Services | 3.2% |
| Public Administration | 3.1% |
| Transportation & Warehousing | 2.8% |
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Frequently Asked Questions
Somerville, New Jersey has a population of 12,958 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 105th-largest city in New Jersey.
The median household income in Somerville, New Jersey is $103,869, with 1.2% of residents living below the federal poverty level.
The median home value in Somerville, New Jersey is $403,600, with median monthly rent at $1,748 and a homeownership rate of 44.5%.
The median age in Somerville, New Jersey is 35.5 years. The population is 52.1% male and 47.9% female.
The population has grown 19.2% since 2010 (12,107 → 14,428).
Somerville borough, NJ Climate
Somerville borough, NJ has an average annual temperature of 11.2°C (52°F) and receives about 1235 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
11.2°C
Avg Temp
1235
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -2° / 29° | 97 mm |
| February | 0° / 32° | 75 mm |
| March | 5° / 40° | 101 mm |
| April | 10° / 50° | 104 mm |
| May | 16° / 61° | 116 mm |
| June | 21° / 69° | 104 mm |
| July | 24° / 74° | 127 mm |
| August | 23° / 73° | 112 mm |
| September | 19° / 66° | 109 mm |
| October | 12° / 54° | 93 mm |
| November | 7° / 44° | 101 mm |
| December | 1° / 35° | 96 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Somerville borough, NJ
The most comfortable months to visit Somerville borough, NJ are typically June, August and September, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -7°C low). July is usually the wettest month.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.