CensusEasy
COUNTY · 2000 CENSUS

Mercer County

New Jersey · 350,761 residents · 224.478 sq mi
Time machine
COMPARE TO
Part of the Trenton metro area
Compare
The short version

Mercer County is significantly wealthier than the US average, with a median household income of $56,613. Population has held roughly steady since 1990. Median home value is $143,600.

At a glance
Wealthier
above the US median
US median: $42,589
Mid-age
median age 36.0
US median: 35.2
More educated
34% hold a bachelor's degree
US average: 24%
More affordable
home values down 20%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
350,761
+8%since 1990
from 325,824 in 1990
1990 – 2025
Median age
36.0
+5%since 1990
from 34.2 in 1990
US average: 35.2
Population, 1990 – 2024
320K338K357K375K393K1990201020202024Mercer County
2024386K
1990201020202024
Age distribution, 2000
Under 56.3%(22,189)
US avg: 6.8%
5 to 97%(24,527)
US avg: 7.3%
10 to 146.9%(24,148)
US avg: 7.3%
15 to 197.1%(24,798)
US avg: 7.2%
20 to 247%(24,599)
US avg: 6.7%
25 to 3414%(49,270)
US avg: 14.2%
35 to 4416.5%(58,012)
US avg: 16%
45 to 5414%(48,990)
US avg: 13.4%
55 to 648.6%(30,088)
US avg: 8.6%
65 to 746.4%(22,603)
US avg: 6.5%
75 to 844.6%(16,111)
US avg: 4.4%
85 and over1.5%(5,426)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$56,613
+4%inflation adjusted, since 1990
from $41,227 in 1990
US average: $42,589
1990 – 2024
Per capita income
$27,914
+47%since 1990
from $18,936 in 1990
US average: $21,522
Poverty rate
8.6%
+1.2 ptssince 1990
from 7.4% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$143,600
−20%inflation adjusted, since 1990
from $136,700 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$727
−3%inflation adjusted, since 1990
from $570 in 1990
US average: $602
Owner-occupied
67.0%
+0.5 ptssince 1990
from 66.5% in 1990
33.0% rent
RELATED:See current rent listings in Mercer County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic75.2%(244,880)
Black18.8%(61,253)
Hispanic / Latino5.7%(18,723)
Asian3%(9,894)
2000
White, non-Hispanic64.2%(225,284)
Black19.4%(67,922)
Hispanic / Latino9.7%(33,898)
Asian4.9%(17,250)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Central American8.1%(31,180)
Guatemalan6%(23,328)
Puerto Rican5%(19,121)
South American4%(15,452)
Dominican2.8%(10,739)
Ecuadorian2.1%(8,136)
Mexican1.3%(5,106)
Honduran0.8%(3,153)
Colombian0.7%(2,564)
Peruvian0.6%(2,388)
Costa Rican0.5%(1,874)
Salvadoran0.4%(1,577)
+ 10 more hispanic origin groups with data
Cuban0.4%(1,364)
Venezuelan0.3%(1,208)
Spaniard0.2%(910)
Panamanian0.2%(717)
Argentine0.1%(341)
Nicaraguan0.1%(329)
Chilean0.1%(311)
Bolivian0%(177)
Uruguayan0%(169)
Asian origin
Asian Indian7.2%(27,691)
Chinese2.4%(9,172)
Filipino0.7%(2,849)
Korean0.7%(2,561)
Pakistani0.3%(1,193)
Japanese0.3%(981)
Taiwanese0.2%(769)
Burmese0.1%(431)
Vietnamese0.1%(405)
Bangladeshi0.1%(234)
Nepalese0%(149)
Thai0%(77)
+ 5 more asian origin groups with data
Pacific Islander origin
Samoan0%(84)
Chamorro0%(37)
Ancestry
Italian10.2%(39,398)
Irish9.8%(37,770)
German8.3%(32,190)
English5.7%(21,928)
Polish4.9%(18,883)
American2.4%(9,301)
West Indian2.2%(8,610)
Russian1.3%(4,836)
Hungarian1.1%(4,331)
Haitian1%(3,918)
French1%(3,847)
+ 49 more ancestry groups with data
Scottish1%(3,836)
Jamaican0.8%(3,137)
Arab0.7%(2,815)
Dutch0.7%(2,801)
Ukrainian0.5%(2,119)
Slovak0.5%(1,863)
Swedish0.4%(1,675)
Greek0.4%(1,597)
Nigerian0.4%(1,502)
Lithuanian0.4%(1,398)
Norwegian0.3%(1,338)
British0.3%(1,266)
Egyptian0.3%(1,189)
Scotch-Irish0.3%(1,134)
Turkish0.3%(1,074)
Romanian0.3%(1,066)
Czech0.3%(1,052)
Austrian0.3%(1,041)
Welsh0.3%(1,029)
Danish0.3%(1,007)
Ghanaian0.2%(840)
Portuguese0.2%(787)
Canadian0.2%(726)
Brazilian0.2%(682)
Swiss0.1%(485)
Moroccan0.1%(415)
Lebanese0.1%(388)
Iranian0.1%(388)
Croatian0.1%(360)
Guyanese0.1%(345)
Israeli0.1%(339)
Palestinian0.1%(295)
Bulgarian0.1%(286)
Armenian0.1%(259)
Slovene0.1%(241)
Kenyan0.1%(206)
Ethiopian0.1%(198)
Finnish0%(162)
Belgian0%(148)
Latvian0%(138)
Barbadian0%(101)
Syrian0%(95)
Serbian0%(94)
Jordanian0%(54)
Somali0%(8)
RANKED:Largest Italian population · Largest Irish population · Largest German population · Largest Central American population · Largest Asian Indian population
Section 05

Education

Bachelor's degree or higher
34.0%
+4.5 ptssince 1990
from 29.5% in 1990
US average: 24.4%
High school or higher
81.8%
+4.7 ptssince 1990
from 77.1% in 1990
US average: 80.3%
Graduate degree
15.5%
+2.9 ptssince 1990
from 12.6% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
18.7 min
−11%since 1990
from 21.0 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married32%(42,974)
Married58.8%(78,994)
Widowed2.8%(3,696)
Divorced6.4%(8,573)
Women 15+
Never married28%(40,825)
Married52%(75,851)
Widowed10.9%(15,959)
Divorced9.1%(13,269)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Drill deeper

Places similar to Mercer County

Anoka County
Pop 381,605
Orange County
Pop 417,669
Weld County
Pop 378,426
Solano County
Pop 455,376
Places similar to Mercer County
Head to head

Compare Mercer County to nearby counties

MERCER COUNTY VS
Middlesex County
Income$111,549+97%
Home value$462,900+222%
Population883,335+121%
SEE FULL COMPARISON →
MERCER COUNTY VS
Somerset County
Income$140,374+148%
Home value$552,100+284%
Population356,486−11%
SEE FULL COMPARISON →
MERCER COUNTY VS
Bucks County
Income$114,764+103%
Home value$445,700+210%
Population647,828+62%
SEE FULL COMPARISON →
MERCER COUNTY VS
Hunterdon County
Income$141,715+150%
Home value$517,200+260%
Population131,781−67%
SEE FULL COMPARISON →
Frequently asked

How many people live in Mercer County, New Jersey?

Mercer County, New Jersey has about 350,761 residents according to the 2000 Census.

What is the median household income in Mercer County, New Jersey?

The typical household in Mercer County, New Jersey earns about $56,613 a year. Half of households make more than that, and half make less.

Is Mercer County, New Jersey expensive?

In Mercer County, New Jersey, the median home is worth about $143,600, and the typical rent is about $727 a month.

How educated are people in Mercer County, New Jersey?

About 34.0% of adults age 25 and over in Mercer County, New Jersey hold a bachelor's degree or higher.

What is the poverty rate in Mercer County, New Jersey?

About 8.6% of people in Mercer County, New Jersey live below the federal poverty line.

Has Mercer County, New Jersey grown since 1990?

Yes, Mercer County, New Jersey has grown since 1990. The population has added about 24,937 residents, a change of about 8 percent over that period.

Keep going

Explore from here

84 census tracts (top 20 by population)
Census Tract 25Census Tract 44.04Census Tract 32.01Census Tract 43.11Census Tract 44.07Census Tract 33.01Census Tract 37.03Census Tract 27.02Census Tract 38Census Tract 43.07Census Tract 45.01Census Tract 28Census Tract 35Census Tract 4Census Tract 21Census Tract 22Census Tract 42.04Census Tract 5Census Tract 39.04Census Tract 44.03
22 ZIP codes
ZIP 08540ZIP 08618ZIP 08610ZIP 08611ZIP 08648ZIP 08520ZIP 08619ZIP 08638ZIP 08550ZIP 08690ZIP 08691ZIP 08609ZIP 08534ZIP 08629ZIP 08620ZIP 08628ZIP 08525ZIP 08544ZIP 08560ZIP 08542ZIP 08608ZIP 08561
Up the hierarchy
All counties in New Jersey
Rankings
Highest income countiesLowest poverty counties

DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →