Mercer County, New Jersey
NJ · FIPS 34021 · ACS 2024 5-Year Estimates
| Metric | Value | vs National | Rank | Percentile |
|---|---|---|---|---|
| Total Population | 385,864 | — | #193 / 3,222 | |
| Median Household Income | $100,645 | +33.9% | #166 / 3,222 | |
| Median Age | 39.5 years | +1.5% | #2,265 / 3,222 | |
| Median Home Value | $377,700 | +34.0% | #346 / 3,222 | |
| Median Gross Rent | $1,623 | +39.6% | #173 / 3,222 | |
| Poverty Rate | 10.3% | -18.5% | #855 / 3,222 | |
Demographics
Mercer County has a population of 385,864, making it the #193 most populous county in the US. The median age is 39.5 years, which is 1.5% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Household Type
Economy
The median household income in Mercer County is $100,645, ranking #166 out of 3,222 counties — 33.9% above the national median. The poverty rate is 10.3% and unemployment stands at 6.3%.
Median Household Income Trend
Rankings →Poverty Rate Trend
Rankings →Housing
The median home value in Mercer County is $377,700 (+34.0% vs national). Renters pay a median of $1,623/mo and the homeownership rate is 62.2%.
Median Home Value Trend
Rankings →Health
92.1% of residents in Mercer County have health insurance coverage, which is 0.5% above the national rate.
About Mercer County, New Jersey
Mercer County, New Jersey has a total population of 385,864, making it the 193rd most populous county in the United States. The median age in Mercer County is 39.5 years, which is 1.5% above the national median of 38.9 years.
The median household income in Mercer County is $100,645, which ranks #166 of 3,222 counties nationwide. This is 33.9% above the national median of $75,149. The poverty rate is 10.3%, lower than the national rate of 12.6%. The unemployment rate stands at 6.3%.
The median home value in Mercer County is $377,700, 34.0% above the national median. Renters in Mercer County pay a median gross rent of $1,623 per month. The homeownership rate is 62.2%, compared to the national rate of 64.4%.
In Mercer County, 45.4% of residents aged 25 and older hold a bachelor's degree or higher, 34.8% above the national average of 33.7%. Health insurance coverage stands at 92.1% of the population. The average commute time for workers is 29.7 min.
Mercer County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 42.7% of the population, followed by Hispanic or Latino (23.1%) and Black (non-Hispanic) (17.9%).
All data for Mercer County, New Jersey comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.