Mercer County, Pennsylvania Demographics 2026

Name: Mercer County, Pennsylvania Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Mercer County, Pennsylvania has a population of 109,257, the 30th most populous county in Pennsylvania. The median household income is $59,976 and the median home value is $164,000. The poverty rate is 13.2%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Mercer County Quick Facts

Population 109,257

Median Household Income $59,976

Median Home Value $164,000

Poverty Rate 13.2%

Unemployment Rate 5.3%

Median Age 45.1 years

Homeownership Rate 72.4%

Affordability Ratio 2.7x

Bachelor's Degree+ 25.6%

High School Graduation 91.7%

Cities/Places 19

Population 109,257 30th of 67

Median Income $59,976 23% lower than state

Poverty Rate 13.2%

Unemployment 5.3%

How Mercer County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	109,852	109,257	-0.5%
Median household income	$60,614	$59,976	-1.1%
Median home value	$153,600	$164,000	+6.8%

Median Household Income

Mercer

$59,976

$77,971

National

$80,734

Median Home Value

Mercer

$164,000

$254,500

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 18.8%

$25K-$50K 22.3%

$50K-$100K 31.1%

$100K+ 27.7%

Detailed income brackets

Under $10K

5.2%

$10K-$15K

4.3%

$15K-$20K

3.9%

$20K-$25K

5.3%

$25K-$30K

5.2%

$30K-$35K

4.3%

$35K-$40K

4.0%

$40K-$45K

4.5%

$45K-$50K

4.3%

$50K-$60K

8.9%

$60K-$75K

9.7%

$75K-$100K

12.6%

$100K-$125K

9.8%

$125K-$150K

6.4%

$150K-$200K

6.9%

$200K+

4.6%

Employment

5.3% Unemployment Rate State: 5.3%|National: 5.2%

54.6% Labor Force Participation

Housing Overview

Owner 72.4%

Renter 27.6%

Affordability Index Very Affordable

2.7x home value to income ratio

Median gross rent $843/mo 16.9% of median household income annually

People & Demographics

Age Distribution

Under 18

18.9%

18-34

19.8%

35-54

23.2%

55-74

28.0%

75+

10.0%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 45 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Mercer County

City	Population	Median Income	Poverty	Home Value
Hermitage	16,041	$70,052	10.9%	$199,500
Sharon	12,936	$45,670	20.0%	$78,800
Grove City	7,830	$57,169	10.8%	$171,600
Greenville	5,523	$52,661	16.5%	$115,100
Farrell	4,199	$42,595	23.7%	$87,800
Sharpsville	4,187	$51,439	15.3%	$121,300
Mercer	2,006	$47,054	16.3%	$151,200
Reynolds Heights	1,845	$51,181	18.9%	$111,700
West Middlesex	980	$89,667	1.3%	$158,100
Wheatland	819	$40,536	34.4%	$67,700
Stoneboro	785	$50,625	16.6%	$112,700
Sandy Lake	783	$83,875	13.0%	$177,300
Jamestown	683	$44,688	14.1%	$87,600
Lake Latonka	651	$94,167	5.7%	$392,600
Clark	585	$60,000	7.3%	$229,800
Fredonia	314	$52,639	27.1%	$117,000
New Lebanon	199	$51,250	30.1%	$163,200
Jackson Center	172	$56,406	11.1%	$122,800
Sheakleyville	100	$73,542	9.0%	$86,700

Explore Pennsylvania Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Mercer County is located in Pennsylvania with a total population of 109,257. It is the 30th most populous county out of 67 in Pennsylvania. The county encompasses 19 Census-designated places.

Age Demographics

The median age in Mercer County is 45.1 years. This is 10% higher than the state median of 40.9 years. 10.0% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Mercer County is $59,976. This is 23% lower than the state median of $77,971. It is also 26% lower than the national median of $80,734. The poverty rate stands at 13.2%. This is 12% higher than the state poverty rate of 11.7%. The unemployment rate is 5.3%. This is 2% higher than the state rate of 5.3%. The median home value is $164,000. Housing costs are 36% lower than the state median of $254,500. With a home-value-to-income ratio of just 2.7x, Mercer County is one of the most affordable housing markets in the area. 72.4% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 69.3%.

Race & Ethnicity

Mercer County has a predominantly White (non-Hispanic) population, comprising 87.9% of all residents. Black or African American residents account for 5.6%. The Hispanic or Latino population (1.7%) is well below the state average of 8.7%. The Asian population (0.6%) is well below the state average of 3.8%.

Education

25.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 27% lower than the state rate of 35.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.7%.

Data Sources & Methodology

All figures for Mercer County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Pennsylvania and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Mercer County, Pennsylvania?

Mercer County has a population of 109,257, making it the 30th most populous county in Pennsylvania.

What is the median income in Mercer County?

The median household income in Mercer County is $59,976 with a poverty rate of 13.2%.

How many cities are in Mercer County, Pennsylvania?

Mercer County contains 19 Census-designated places.