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Mercer County, Pennsylvania Demographics 2026

Mercer County, Pennsylvania has a population of 109,852, the 30th most populous county in Pennsylvania. The median household income is $60,614 and the median home value is $153,600. The poverty rate is 12.8%.

Mercer County Quick Facts

Population 109,852
Median Household Income $60,614
Median Home Value $153,600
Poverty Rate 12.8%
Unemployment Rate 5.3%
Median Age 45.2 years
Homeownership Rate 72.5%
Affordability Ratio 2.5x
Bachelor's Degree+ 25.1%
High School Graduation 91.3%
Cities/Places 18
Population 109,852 30th of 67
Median Income $60,614 20% lower state
Poverty Rate 12.8%
Unemployment 5.3%

Economy & Housing

Employment

5.3% Unemployment Rate State: 5.3% | National: 5.2%
55.3% Labor Force Participation

Housing Overview

Owner 72.5%
Renter 27.5%
Affordability Index Very Affordable
2.5x home value to income ratio

People & Demographics

Diversity Index

21out of 100
Very Low Diversity

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

State average: 43 | National average: 60

Education

Cities & Places in Mercer County

CityPopulationMedian IncomePovertyHome Value
Hermitage city16,132$72,46410.1%$187,600
Sharon city13,019$44,59521.3%$79,100
Grove City borough7,861$56,4208.5%$165,900
Greenville borough5,533$56,85011.6%$98,200
Farrell city4,239$40,40528.4%$76,200
Sharpsville borough4,219$50,36313.1%$117,200
East Greenville borough3,154$77,3447.7%$216,200
Mercer borough1,847$44,86515.3%$130,300
West Middlesex borough1,063$82,5002.4%$156,100
Stoneboro borough794$55,41717.8%$109,400
Sandy Lake borough752$67,29214.5%$165,800
Jamestown borough709$44,82110.6%$86,900
Wheatland borough703$43,62533.1%$64,600
Clark borough617$68,2506.2%$210,800
Fredonia borough382$48,57123.3%$94,600
New Lebanon borough177$52,08333.3%$130,600
Jackson Center borough164$57,08312.2%$125,000
Sheakleyville borough120$61,25017.5%$90,700

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 109,852. It is the 30th most populous county out of 67 in Pennsylvania. The county encompasses 18 Census-designated places.

Age Demographics

The median age in Mercer County is 45.2 years. This is 11% higher than the state median of 40.9 years.

Economy, Income & Housing

The median household income in Mercer County is $60,614. This is 20% lower than the state median of $76,081. Compared to the national median of $78,538, household income here is 23% lower. The poverty rate stands at 12.8%. This is 8% higher than the state poverty rate of 11.8%. The unemployment rate is 5.3%. The median home value is $153,600. Housing costs are 36% lower than the state median of $240,500. With a home-value-to-income ratio of just 2.5x, Mercer County is one of the most affordable housing markets in the area. 72.5% of occupied housing units are owner-occupied. This homeownership rate is 5% higher than the state average of 69.3%.

Race & Ethnicity

Mercer County has a predominantly White (non-Hispanic) population, comprising 88.6% of all residents. Black or African American residents account for 5.5%. The Hispanic or Latino population (1.6%) is well below the state average of 8.4%. The Asian population (0.6%) is well below the state average of 3.7%.

Education

25.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 27% lower than the state rate of 34.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.3%.

Frequently Asked Questions

What is the population of Mercer County, Pennsylvania?

Mercer County has a population of 109,852, 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 $60,614 with a poverty rate of 12.8%.

How many cities are in Mercer County, Pennsylvania?

Mercer County contains 18 Census-designated places.