Somerset County, NJ Population Statistics: Density Map Data
Analyze local population trends, population density map, housing costs, and the local economy.
Area Snapshot Statistics
Key statistics on population, economy, housing, and commuting compared to state and national averages. Explore interactive maps for deeper analysis.
Population: density and quick facts
| Metric | Somerset County | New Jersey Avg | U.S. Average |
|---|---|---|---|
| Population | 337,845 | 9,029,857 | 334,821,731 |
| Population density (per sq mi) | 1108.7 | 1036.4 | 85.8 |
| Population growth (%/yr) | 0.61% | 0.55% | 0.57% |
| Median age | 43.3 | 40.2 | 37.1 |
| Households | 129,401 | 3,476,039 | 128,459,983 |
Population in Somerset County grew by 7.7% from 2009 to 2023, reaching 346,147 in 2023.
Population Growth 2009–2023
Race & Ethnicity
Economy
Somerset County has a the economy index of A+, which means it is exceptionally prosperous.
| Metric | Somerset County | New Jersey Avg | U.S. Average |
|---|---|---|---|
| Median household income | $136,053 | $101,200 | $78,145 |
| Income growth (%/yr) | 4.03% | 4.63% | 5.07% |
| Unemployment rate | 4.8% | 6.1% | 5.2% |
The median household income in Somerset County is about 34% higher than in New Jersey.
Housing
| Metric | Somerset County | New Jersey Avg | U.S. Average |
|---|---|---|---|
| Median home price | $444,290 | $359,215 | $242,182 |
| Median rent | $1,920 | $1,653 | $1,342 |
| Homeownership rate | 74.5% | 63.7% | 65.1% |
The median home price in Somerset County is about 19.3 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,920 per month for that long.
Commute Time & Mobility
Commuters in Somerset County spend about 55 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 229 hours, about 9.5 full days, spent commuting.
| Metric | Somerset County | New Jersey Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 27.5 | 26.6 | 22.5 |
| Round-trip commute (min) | 55.0 | 53.1 | 44.9 |
| Yearly time spent (hours) | 229 | 221 | 187 |
| Estimated yearly cost | $7,104 | $6,865 | $5,803 |
| Work from home | 20.5% | 15.0% | 13.4% |
| Highway traffic (vehicles/day) | 16,937 | 14,317 | 8,813 |
| Local road traffic (vehicles/day) | 2,242 | 2,109 | 1,355 |
Fastest commutes among counties in
New Jersey:
Cape May County (18.1 min), Cumberland County (20.8 min), Atlantic County (21.6 min).
Slowest:
Hudson County (32.9 min), Sussex County (32.3 min), Hunterdon County (31.1 min).
The average commute time in Somerset County is about the same as in New Jersey.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Somerset County has a education index of A+, which means it is exceptionally educated.
| Metric | Somerset County | New Jersey Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 53.9% | 39.6% | 31.6% |
| Average household size | 2.65 | 2.61 | 2.54 |
Highest education index among counties in
New Jersey:
Somerset County (0.4), Morris County (0.4), Hunterdon County (0.4).
Lowest:
Cumberland County (0.2), Salem County (0.2), Passaic County (0.3).
Health
Somerset County has a health index of A, which means it is very healthy.
| Metric | Somerset County | New Jersey Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 81.8 | 79.4 | 78.3 |
| Self-rated poor health | 9.5% | 12.9% | 16.3% |
| Smokers | 10.4% | 14.2% | 19.0% |
Highest health index among counties in
New Jersey:
Morris County (0.8), Hunterdon County (0.8), Somerset County (0.8).
Lowest:
Cumberland County (0.8), Salem County (0.8), Passaic County (0.8).
Frequently Asked Questions
Common questions about Somerset County, New Jersey.
What is the population of Somerset County, New Jersey?
The population of Somerset County, New Jersey is 337,845, compared to the U.S. total of 334,821,731.
What is the population density of Somerset County, New Jersey?
The population density of Somerset County, New Jersey is 1108.7 people per square mile, compared to the U.S. average of 85.8 people per square mile.
What is the median household income in Somerset County, New Jersey?
The median household income in Somerset County, New Jersey is $136,053, compared to the U.S. median of $78,145.
What is the median home price in Somerset County, New Jersey?
The median home price in Somerset County, New Jersey is $444,290, compared to the U.S. median of $242,182.
What is the unemployment rate in Somerset County, New Jersey?
The unemployment rate in Somerset County, New Jersey is 4.8%, compared to the U.S. average of 5.2%.