Mercer County NJ Information

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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, 2014 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 Density1 # 8 67th
Diversity Index2 # 7 71st
Median Household Income # 9 62nd
Per Capita Income # 7 71st

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

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Mercer County NJ Data & Demographics (As of July 1, 2014)

POPULATION

Total Population 367,866
Population in Households 349,223
Population in Familes 283,675
Population in Group Qrtrs 18,643
Population Density1 1,638
Diversity Index2 71
 

HOUSEHOLDS

Total Households 133,936
Average Household Size 2.61
Family Households 89,752
Average Family Size 3

HOUSING

Total Housing Units 145,053 (100%)
Owner Occupied HU 85,843 (59.2%)
Renter Occupied HU 48,093 (33.2%)
Vacant Housing Units 11,117 ( 7.7%)
Median Home Value $322,874
Average Home Value $447,500
 

INCOME

Median Household Income $75,422
Average Household Income $103,289
Per Capita Income $38,491
  (Compound Annual Growth Rates)

GROWTH RATES

2010-2014 2014-2019
Population 0.09% 0.23%
Households 0.14% 0.25%
Families 0.08% 0.22%
Median Household Income   2.53%
Per Capita Income   3.36%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

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