Mercer County, NJ Demographics & Local Data

Analyze population trends, housing costs, and the local economy by exploring Map AI.

Area Snapshot

Key statistics on population, economy, housing, and commuting compared to state and national averages. Explore interactive maps for deeper analysis.

B
B
A

Population

Metric Mercer County New Jersey Avg U.S. Average
Population 369,467 9,029,857 334,821,731
Population density (per sq mi) 1615.7 1036.4 85.8
Population growth (%/yr) 0.44% 0.55% 0.57%
Median age 37.9 40.2 37.1
Households 141,373 3,476,039 128,459,983

Population Over Time

Year Mercer County

Race & Ethnicity

Group Share

Economy

Mercer County has a the economy index of B, which means it is quite prosperous.

Metric Mercer County New Jersey Avg U.S. Average
Median household income $96,636 $101,200 $78,145
Income growth (%/yr) 3.90% 4.63% 5.07%
Unemployment rate 6.1% 6.1% 5.2%

Detailed wealth and income breakdown →

Housing

Metric Mercer County New Jersey Avg U.S. Average
Median home price $243,052 $359,215 $242,182
Median rent $1,515 $1,653 $1,342
Homeownership rate 61.9% 63.7% 65.1%

Full housing market analysis →

Mobility & Commuting

The most common departure window is 07:00 AM – 07:29 AM , followed by 08:00 AM – 08:29 AM .

Metric Mercer County New Jersey Avg U.S. Average
Average commute time (min) 21.8 26.6 22.5
Work from home 17.8% 15.0% 13.4%

Commute and transport details →

Education & Households

Mercer County has a education index of A, which means it is very educated.

Metric Mercer County New Jersey Avg U.S. Average
Bachelor's degree or higher 40.1% 39.6% 31.6%
Average household size 2.57 2.61 2.54

Health

Mercer County has a health index of B, which means it is quite healthy.

Metric Mercer County New Jersey Avg U.S. Average
Life expectancy (years) 78.9 79.4 78.3
Self-rated poor health 14.2% 12.9% 16.3%
Smokers 15.3% 14.2% 19.0%