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COUNTY

Mercer County

Pennsylvania · 107,860 residents (2025 est.) · 673 sq mi
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The short version

With 109,257 people, Mercer County is a county in Pennsylvania. The median age is 45.1, about 6 years above the US median. The typical home is worth $164,000, having more than doubled since 2000. The foreign-born share is 2%. About 26% of adults have finished a four-year degree. That trails the Pennsylvania median by roughly 23%.

At a glance
Lower income
below the US median
US median: $82,259
Older
median age 45.1
US median: 38.9
Less educated
26% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
109,257
−9%since 2000
from 120,293 in 2000
107,860 in 2025 (Census Bureau estimate)
1990 – 2025
Population density
162 / sq mi
−7%since 2009
from 174 / sq mi in 2009
US average: 281
Median age
45.1
+14%since 2000
from 39.6 in 2000
US average: 38.9
Land area
673 sq mi
Population, 1990 – 2024
108K112K115K119K122K19902000201020202024Mercer County
2024109K
1990201020202024
Age distribution, 2024
Under 54.8%(5,202)
US avg: 5.6%
5 to 95%(5,462)
US avg: 6%
10 to 145.5%(6,022)
US avg: 6.4%
15 to 196.4%(7,006)
US avg: 6.6%
20 to 246.5%(7,087)
US avg: 6.5%
25 to 3410.6%(11,554)
US avg: 13.7%
35 to 4411.1%(12,122)
US avg: 13.2%
45 to 5412.1%(13,252)
US avg: 12.2%
55 to 6414.9%(16,279)
US avg: 12.7%
65 to 7413.1%(14,308)
US avg: 10.2%
75 to 847.2%(7,851)
US avg: 5.1%
85 and over2.8%(3,112)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$59,976
−5%inflation adjusted, since 2000
from $34,666 in 2000
US average: $82,259
1990 – 2024
Per capita income
$34,033
+93%since 2000
from $17,636 in 2000
US average: $44,673
Households earning $100K+
40.3%
+18.1 ptssince 2009
from 22.2% in 2009
US average: 53.3%
Poverty rate
13.2%
+1.7 ptssince 2000
from 11.5% in 2000
US average: 12.5%
Income inequality (Gini)
0.442
+5%since 2010
from 0.422 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade15.9%
US avg: 9.9%
Information12.2%
US avg: 10.8%
Wholesale trade6.5%
US avg: 6.9%
Finance & insurance5.4%
US avg: 5.9%
Other services4.9%
US avg: 6.7%
Professional, scientific, technical4.9%
US avg: 5.1%
Public administration3.9%
US avg: 4.8%
Transportation & warehousing1.7%
US avg: 2.2%
Agriculture, forestry, fishing1.6%
US avg: 1.6%
Construction1.1%
US avg: 1.2%
Arts, entertainment, food0.9%
US avg: 1.9%
Education & health services0.6%
US avg: 0.9%
Manufacturing0.5%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$164,000
+20%inflation adjusted, since 2000
from $75,100 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$843
+4%inflation adjusted, since 2000
from $443 in 2000
US average: $1,442
Owner-occupied
72.4%
−3.9 ptssince 2000
from 76.3% in 2000
27.6% rent
Vacancy rate
8.7%
−0.9 ptssince 2009
from 9.5% in 2009
US average: 10.0%
Persons per household
2.21 people
−6%since 2009
from 2.34 people in 2009
US average: 2.54
Owner cost-burdened
15.3%
−8.6 ptssince 2009
from 23.9% in 2009
US average: 22.9%
Renter cost-burdened
40.6%
−0.6 ptssince 2009
from 41.2% in 2009
US average: 47.4%
Afford Score
2.7
+17%since 2009
from 2.3 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Gentrification Score
39
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04

Race & ethnicity

2000
White, non-Hispanic92.7%(111,507)
Black5.2%(6,279)
Hispanic / Latino0.7%(803)
Asian0.4%(477)
Other0%
2024
White, non-Hispanic87.9%(96,024)
Black5.6%(6,151)
Hispanic / Latino1.7%(1,837)
Asian0.6%(694)
Other4.2%(4,551)
Diversity Score
28
+50%since 2009
from 19 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
40
−13%since 2020
from 46 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Puerto Rican0.6%(617)
Mexican0.4%(472)
Dominican0.4%(452)
Colombian0%(50)
Spaniard0%(35)
Argentine0%(14)
Cuban0%(8)
Chilean0%(6)
+ 1 more hispanic origin group with data
Asian origin
Filipino0.2%(186)
Chinese0.1%(130)
Vietnamese0.1%(93)
Indonesian0.1%(71)
Asian Indian0.1%(64)
Pakistani0.1%(57)
Thai0%(31)
Taiwanese0%(12)
Korean0%(2)
Pacific Islander origin
Ancestry
German22.2%(24,249)
Irish14.5%(15,873)
Italian10.8%(11,817)
English10.3%(11,299)
American6.9%(7,579)
Polish4.5%(4,918)
Slovak2.4%(2,659)
Scottish2%(2,226)
Scotch-Irish1.8%(1,979)
Hungarian1.6%(1,721)
Welsh1.2%(1,333)
Dutch1.2%(1,301)
+ 42 more ancestry groups with data
French1.1%(1,187)
Swedish0.9%(1,013)
Russian0.8%(875)
Croatian0.8%(872)
Greek0.6%(602)
Swiss0.5%(512)
Ukrainian0.4%(465)
Czech0.4%(451)
Arab0.4%(429)
British0.3%(330)
Serbian0.3%(322)
Norwegian0.3%(302)
Austrian0.3%(296)
Romanian0.2%(271)
Lebanese0.2%(254)
Lithuanian0.1%(148)
Slovene0.1%(137)
Finnish0.1%(133)
Syrian0.1%(101)
Cape Verdean0.1%(98)
West Indian0.1%(95)
Canadian0.1%(69)
Belgian0.1%(67)
Danish0.1%(59)
Jamaican0%(48)
Bulgarian0%(46)
Latvian0%(38)
Armenian0%(26)
Egyptian0%(18)
Turkish0%(18)
Nigerian0%(10)
Iranian0%(5)
Israeli0%(4)
Section 05

Education

Bachelor's degree or higher
25.6%
+8.3 ptssince 2000
from 17.3% in 2000
US average: 35.6%
High school or higher
91.7%
+8.8 ptssince 2000
from 82.9% in 2000
US average: 89.6%
Graduate degree
8.6%
+2.6 ptssince 2000
from 6.0% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
21.7 min
+62%since 2000
from 13.4 min in 2000
US average: 26.5
Drive alone to work
79.6%
−2.3 ptssince 2009
from 81.9% in 2009
US average: 68.9%
Carpooled to work
6.4%
−2.2 ptssince 2009
from 8.6% in 2009
US average: 8.5%
Public transit
0.2%
Unchangedsince 2009
from 0.2% in 2009
US average: 3.2%
Worked from home
9.3%
+3.8 ptssince 2009
from 5.4% in 2009
US average: 15.0%
Walked to work
2.9%
+0.1 ptssince 2009
from 2.8% in 2009
US average: 2.4%
Biked to work
0.2%
+0.1 ptssince 2009
from 0.1% in 2009
US average: 0.4%
No vehicle available
9.6%
+1.6 ptssince 2009
from 7.9% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
5.3%
−3.5 ptssince 2011
from 8.8% in 2011
US average: 5.2%
Labor force participation
54.6%
−2.9 ptssince 2011
from 57.5% in 2011
US average: 63.5%
Women 20-64 in the labor force
69.8%
−1.0 ptssince 2020
from 70.8% in 2020
US average: 74.6%
Self-employed
11.0%
−0.3 ptssince 2009
from 11.2% in 2009
US average: 13.1%
Management & professional
35.7%
+6.8 ptssince 2009
from 28.9% in 2009
US average: 42.5%
Section 08

People & community

Male
49.6%
+0.7 ptssince 2009
from 48.9% in 2009
Female
50.4%
−0.7 ptssince 2009
from 51.1% in 2009
Foreign born
1.8%
+0.1 ptssince 2009
from 1.6% in 2009
US average: 14.1%
Veterans
8.6%
−3.7 ptssince 2009
from 12.2% in 2009
US average: 6.2%
With a disability
17.3%
+1.4 ptssince 2012
from 15.9% in 2012
US average: 13.3%
Uninsured
6.4%
−3.3 ptssince 2013
from 9.7% in 2013
US average: 8.4%
Broadband at home
85.7%
+12.5 ptssince 2017
from 73.2% in 2017
US average: 91.0%
Computer in household
90.5%
+4.3 ptssince 2020
from 86.2% in 2020
US average: 95.5%
Same house as last year
91.0%
+2.5 ptssince 2020
from 88.5% in 2020
US average: 87.7%
English only at home
95.9%
+0.5 ptssince 2016
from 95.4% in 2016
US average: 77.7%
Spanish at home
0.8%
Unchangedsince 2016
from 0.8% in 2016
US average: 13.6%
Marital status
Men 15+
Never married34%(15,502)
Married52.4%(23,875)
Widowed3.4%(1,536)
Divorced10.2%(4,631)
Women 15+
Never married26.2%(12,319)
Married50.2%(23,619)
Widowed12.4%(5,845)
Divorced11.2%(5,244)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
6.4%
−3.3 ptssince 2013
from 9.7% in 2013
US average: 8.4%
Employer-based
50.5%
−2.3 ptssince 2020
from 52.8% in 2020
US average: 54.8%
Direct-purchase
15.5%
+0.1 ptssince 2020
from 15.4% in 2020
US average: 13.8%
Medicare
25.5%
+0.8 ptssince 2020
from 24.7% in 2020
US average: 18.4%
Medicaid
23.9%
−0.5 ptssince 2020
from 24.4% in 2020
US average: 20.9%
VA health care
3.3%
−0.1 ptssince 2020
from 3.4% in 2020
US average: 2.2%
Any private
64.2%
−2.3 ptssince 2020
from 66.5% in 2020
US average: 67.1%
Any public
45.7%
+0.3 ptssince 2020
from 45.4% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)21.2%(1,604)
US avg: 26.4%
Gulf War (1990s)22.9%(1,732)
US avg: 24.3%
Vietnam era34.1%(2,578)
US avg: 33.1%
Korean War5.6%(423)
US avg: 4.5%
World War II1.1%(86)
US avg: 1%

Share of the 7,562 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

Places similar to Mercer County

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Pop 110,318
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Pop 116,957
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Pop 113,106
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Pop 103,537
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Head to head

Compare Mercer County to nearby counties

MERCER COUNTY VS
Lawrence County
Income$61,931+3%
Home value$147,200−10%
Population83,911−22%
SEE FULL COMPARISON →
MERCER COUNTY VS
Venango County
Income$61,522+3%
Home value$119,800−27%
Population49,346−54%
SEE FULL COMPARISON →
MERCER COUNTY VS
Trumbull County
Income$56,435−6%
Home value$141,800−14%
Population198,972+84%
SEE FULL COMPARISON →
MERCER COUNTY VS
Crawford County
Income$60,476+1%
Home value$153,200−7%
Population81,792−24%
SEE FULL COMPARISON →
Frequently asked

How many people live in Mercer County, Pennsylvania?

Mercer County, Pennsylvania has about 109,257 residents according to the 2024 American Community Survey.

What is the median household income in Mercer County, Pennsylvania?

The typical household in Mercer County, Pennsylvania earns about $59,976 a year. Half of households make more than that, and half make less.

Is Mercer County, Pennsylvania expensive?

In Mercer County, Pennsylvania, the median home is worth about $164,000, and the typical rent is about $843 a month.

How educated are people in Mercer County, Pennsylvania?

About 25.6% of adults age 25 and over in Mercer County, Pennsylvania hold a bachelor's degree or higher.

What is the poverty rate in Mercer County, Pennsylvania?

About 13.2% of people in Mercer County, Pennsylvania live below the federal poverty line.

Has Mercer County, Pennsylvania grown since 1990?

Yes, Mercer County, Pennsylvania has shrunk since 1990. The population has lost about 11,746 residents, a change of about -10 percent over that period.

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

How we source and harmonize this data →