Mercer County, New Jersey Population 2018

Mercer County, New Jersey's estimated population is 374,733 with a growth rate of 0.98% in the past year according to the most recent United States census data. Mercer County, New Jersey is the 12th largest county in New Jersey.

Year Population Growth Growth Rate
2017374,7333,6320.98%
2016371,101-2,559-0.68%
2016373,6605560.15%
2015373,1041300.03%
2014372,9746370.17%
2013372,3371,9180.52%
2012370,4192,2180.60%
2011368,2012710.07%
2010367,93042,10612.92%
1990325,82417,9615.83%
1980307,8633,8951.28%
1970303,96837,57614.11%
1960266,39236,61115.93%
1950229,78132,46316.45%
1940197,31810,1755.44%
1930187,14327,26217.05%
1920159,88134,22427.24%
1910125,65730,29231.76%
190095,36515,38719.24%
189079,97821,91737.75%
188058,06111,67525.17%
187046,3868,96723.96%
186037,4199,42733.68%
185027,9926,49030.18%
184021,5020.00%

Mercer County, New Jersey Population Growth

Population Data via

Population by Race

Race Population
White235,205
Black or African American75,905
Asian38,667
Some Other Race13,588
Two or More Races7,167
American Indian and Alaska Native451
Native Hawaiian and Other Pacific Islander118

Race Data via US Census (2016 ACS 5-Year Survey)

Mercer County, New Jersey Population Pyramid 2018

0%2%4%6%8% Male Population0%2%4%6%8% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Mercer County, New Jersey Median Age

38.5


Total

36.8


Male

39.9


Female

Mercer County, New Jersey Adults

There are 290,572 adults, (50,841 of which are seniors) in Mercer County, New Jersey.

Mercer County, New Jersey Age Dependency

55

Age Dependency Ratio

21.3

Old Age Dependency Ratio

33.7

Child Dependency Ratio

Mercer County, New Jersey Sex Ratio

Female

189,459

51.05%

Male

181,642

48.95%

Mercer County, New Jersey Households and Families

Mercer County, New Jersey Renter vs Owner Occupied by Household Type

Mercer County, New Jersey Household Types

Type Owner Renter
Married80.1%19.9%
All64.1%35.9%
Male51%49%
Non Family47.8%52.2%
Female47.4%52.6%

64.1%

Rate of Home Ownership

Mercer County, New Jersey Households by Type

Type Count Average Size Owned
All130,1292.7164.1
Married65,1773.3680.1
Non Family41,7441.2747.8
Female17,3953.547.4
Male5,8133.4451

3.32

Average Family Size

2.71

Average Household Size

4%

Unmarried (Opposite Sex)

0.3%

Unmarried (Same Sex)

Mercer County, New Jersey Households

Mercer County, New Jersey Education

Mercer County, New Jersey Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade14,1375.70%
9th to 12th Grade16,4116.62%
High School Graduate62,51025.22%
Some College40,28316.25%
Associates Degree14,3015.77%
Bachelors Degree51,94720.96%
Graduate Degree48,29019.48%

Mercer County, New Jersey Educational Attainment by Race

Name Total High School Bachelors
White138,652130,57466,573
Black47,99940,5448,725
Hispanic34,74721,4034,633
Asian24,99223,38219,355
Other Race8,3885,1511,032
Multiple Races2,5872,180993
Native American30823562
Islander935515

The highest rate of high school graduation is among white people with a rate of 94.17%.

The highest rate of bachelors degrees is among white people with a rate of 77.44%.

Mercer County, New Jersey Earnings by Educational Attainment

Name Average Male Female
Overall$46,469$51,947$40,833
Less Than High School$20,004$21,404$16,848
High School Grad$30,915$33,462$27,464
Some College$41,318$45,820$37,360
Bachelors Degree$66,119$80,512$53,913
Graduate Degree$84,550$106,941$66,839

$46,469

Average Earnings

$51,947

Average Male

$40,833

Average Female

Mercer County, New Jersey Language

Mercer County, New Jersey Language by Age

Mercer County, New Jersey Language

70.55% of Mercer County, New Jersey residents speak only English, while 29.45% speak other languages. The largest non-English language is Spanish, which is spoken by 13.94% of the population.

Mercer County, New Jersey Poverty

Mercer County, New Jersey Poverty by Race

Name Total In Poverty Poverty Rate
Black71,93914,32019.91%
Hispanic58,87412,48021.20%
White182,33910,3975.70%
Asian36,6462,2926.25%
Other13,0432,22917.09%
Multiple6,60887113.18%
Islander1139886.73%
Native4397216.40%

11.21%

Overall Poverty Rate

10.20%

Male Poverty Rate

12.16%

Female Poverty Rate

Poverty in Mercer County, New Jersey

The race most likely to be in poverty in Mercer County, New Jersey is Islander, with 86.73% below the poverty level.

The race least likely to be in poverty in Mercer County, New Jersey is White, with 5.70% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.09%. Among those working part-time, it was 11.56%, and for those that did not work, the poverty rate was 19.64%.

Mercer County, New Jersey Poverty Rate by Education

Name Poverty
Less Than High School25.20%
High School12.27%
Some College7.82%
Bachelors or Greater3.47%

Mercer County, New Jersey Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed28.39%
Male Unemployed23.52%
Female Employed5.27%
Male Employed3.89%

Mercer County, New Jersey Income

Mercer County, New Jersey Income by Household Type

Name Median Mean
Households$73,966$106,676
Families$95,533$128,807
Married Families$116,090$153,400
Non Families$40,818$56,436

Mercer County, New Jersey Marital Status

Mercer County, New Jersey Marital Status

Marriage Rates

47.0%

Overall Marriage Rate

48.9%

Male Marriage Rate

45.2%

Female Marriage Rate

Mercer County, New Jersey Married by Age and Sex

Mercer County, New Jersey Marriage

The age group where males are most likely to be married is Over65, while the female age group most likely to be married is 35To44.

Mercer County, New Jersey Marital Status by Race

Mercer County, New Jersey Veterans

Mercer County, New Jersey Veterans by War

14,387

Number of Veterans

13,492

Male Veterans

895

Female Veterans

Name Veterans
Vietnam5,226
Korea1,845
First Gulf War1,764
World War II1,284
Second Gulf War1,225

Mercer County, New Jersey Veterans by Age

Name Veterans
75+4,392
65 to 743,566
55 to 642,962
35 to 542,681
18 to 34786

Mercer County, New Jersey Veterans by Race

Name Veterans % of Total
White10,7515.66%
Black3,2415.69%
Hispanic8992.13%
Other1691.72%
Asian1110.38%
2 or More772.03%
Indian3812.10%

Mercer County, New Jersey Veterans by Education

4.64%

Veteran Poverty Rate

25.76%

Veteran Disability Rate

Mercer County, New Jersey Employment Status

Mercer County, New Jersey Employment by Age

65.3%

Labor Force Participation

59.7%

Employment Rate

8.6%

Unemployment Rate

Mercer County, New Jersey Employment by Race

Mercer County, New Jersey Employment by Education

Population of Cities in Mercer County, New Jersey

City 2010 Census 2016 Estimated Growth Growth Rate
Trenton8493784056-881-1.04%
Princeton285953124926549.28%
Hightstown55095503-6-0.11%
Pennington25712568-3-0.12%
Hopewell19321926-6-0.31%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990