Mercer County NJ Information

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Mercer County Subdivisions

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  1. Mercer County 2019 Demographic Data
  2. Growth Rates forMercer County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. New Jersey Research Tools (Easy Tools & Current Data)
  3. New Jersey Data Comparison Tool - 2019 Demographics

Mercer County NJ Data & Demographics (As of July 1, 2019)

HOUSING AFFORDABILITY INDEX

Mercer County NJ Housing Affordability Index is 96
State of New Jersey Housing Affordability Index is 91
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.

WEALTH INDEX

Mercer County NJ Wealth Index is 156
State of New Jersey Wealth Index is 148
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.

These new demographic attributes are availiable for cities, Counties, ZIP Codes and even neighborhoods (Census Blocks) when you search by a specific New Jersey address.

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POPULATION

Total Population 377,571
Population in Households 357,310
Population in Familes 290,492
Population in Group Qrtrs 20,261
Population Density 1,681
Diversity Index1 74
 

INCOME

Median Household Income $81,187
Average Household Income $122,170
Per Capita Income $44,660
Wealth Index3 156

HOUSING

Total Housing Units 146,448 (100%)
Owner Occupied HU 84,241 (57.5%)
Renter Occupied HU 52,231 (35.7%)
Vacant Housing Units 9,976 ( 6.8%)
Median Home Value $315,901
Housing Affordability Index2 96
 

HOUSEHOLDS

Total Households 136,472
Average Household Size 2.62
Family Households 91,530
Average Family Size 3
NOTES
  1. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  2. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  3. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.

GROWTH RATE / YEAR

2010-2019 2019-2024
Population 0.32% 0.27%
Households 0.27% 0.26%
Families 0.25% 0.26%
Median Household Income   2.68%
Per Capita Income   2.63%

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Mercer County NJ - Peer Comparisons by Rank and Percentile

The table below compares Mercer County to the other 21 counties and county equivalents in New Jersey by rank and percentile using July 1, 2019 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 12 48th
Population Density # 8 67th
Diversity Index # 7 71st
Median Household Income # 11 52nd
Per Capita Income # 6 76th

Additional comparisons and rankings can be made with a VERY EASY TO USE New Jersey Census Data Comparison Tool.

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