United States › Ohio › Mercer County COUNTY
Mercer County Ohio · 42,737 residents (2025 est.) · 462 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS
The short version
Mercer County is home to 42,484 people in Ohio. Few US counties rank higher on income. Four-year degrees are less common here than nationally, at 22% of adults. Owners hold 80% of the housing stock. 2% of locals were born outside the United States. The typical home is worth $210,600, having more than doubled since 2000.
At a glance
Lower income
below the US median
US median: $82,259
Mid-age
median age 39.4
US median: 38.9
Less educated
22% 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 from 40,924 in 2000
42,737 in 2025 (Census Bureau estimate)
from 88 / sq mi in 2009
US average: 281
from 35.7 in 2000
US average: 38.9
Population, 1990 – 2024
39K 40K 41K 42K 43K 1990 2000 2010 2020 2024 Mercer County Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $76,782
−1%inflation adjusted, since 2000
from $42,742 in 2000
US average: $82,259
from $18,531 in 2000
US average: $44,673
Households earning $100K+
from 27.5% in 2009
US average: 53.3%
from 6.4% in 2000
US average: 12.5%
from 0.387 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing 5.2%
Professional, scientific, technical 4.1%
Transportation & warehousing 2.2%
Arts, entertainment, food 1.2%
Education & health services 0.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$210,600
+24%inflation adjusted, since 2000
from $93,500 in 2000
US average: $376,019
$804
+2%inflation adjusted, since 2000
from $433 in 2000
US average: $1,442
from 80.1% in 2000
20.4% rent
from 9.1% in 2009
US average: 10.0%
from 2.65 people in 2009
US average: 2.54
from 18.6% in 2009
US average: 22.9%
from 38.9% in 2009
US average: 47.4%
from 2.4 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 97.8%(40,014)
Hispanic / Latino 1.1%(470)
2024
White, non-Hispanic 94.2%(40,019)
Hispanic / Latino 2.2%(951)
from 8 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 34 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 Ancestry
+ 18 more ancestry groups with data from 12.7% in 2000
US average: 35.6%
High school or higher
from 84.0% in 2000
US average: 89.6%
from 5.1% in 2000
US average: 14.0%
Section 06
Commute & transportation from 13.3 min in 2000
US average: 26.5
from 83.5% in 2009
US average: 68.9%
from 7.7% in 2009
US average: 8.5%
from 0.5% in 2009
US average: 3.2%
from 4.4% in 2009
US average: 15.0%
from 2.8% in 2009
US average: 2.4%
from 0.6% in 2009
US average: 0.4%
from 3.9% in 2009
US average: 8.3%
Section 07
Work & employment from 6.7% in 2011
US average: 5.2%
from 68.5% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 84.0% in 2020
US average: 74.6%
from 9.8% in 2009
US average: 13.1%
from 25.5% in 2009
US average: 42.5%
Section 08
People & community from 0.7% in 2009
US average: 14.1%
from 11.5% in 2009
US average: 6.2%
from 11.3% in 2012
US average: 13.3%
from 7.9% in 2013
US average: 8.4%
from 79.6% in 2017
US average: 91.0%
Computer in household
from 90.2% in 2020
US average: 95.5%
from 89.9% in 2020
US average: 87.7%
from 98.1% in 2016
US average: 77.7%
from 0.6% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 31.4%(5,291)
Women 15+
Never married 23.9%(3,968)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 7.9% in 2013
US average: 8.4%
from 69.0% in 2020
US average: 54.8%
Direct-purchase
from 15.6% in 2020
US average: 13.8%
from 18.6% in 2020
US average: 18.4%
from 10.6% in 2020
US average: 20.9%
VA health care
from 2.4% in 2020
US average: 2.2%
Any private
from 81.7% in 2020
US average: 67.1%
Any public
from 27.9% 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) 13.4%(226)
Gulf War (1990s) 15.2%(256)
Share of the 1,688 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.
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Drill deeper
Places similar to Mercer County Head to head
Compare Mercer County to nearby counties MERCER COUNTY VS
Jay County
Income $54,969 −28%
Home value $117,500 −44%
Population 20,118 −53%
SEE FULL COMPARISON →
MERCER COUNTY VS
Auglaize County
Income $78,660 +2%
Home value $189,800 −10%
Population 45,909 +7%
SEE FULL COMPARISON →
MERCER COUNTY VS
Adams County
Income $65,289 −15%
Home value $178,400 −15%
Population 36,650 −14%
SEE FULL COMPARISON →
MERCER COUNTY VS
Van Wert County
Income $67,917 −12%
Home value $152,000 −28%
Population 29,013 −32%
SEE FULL COMPARISON →
Frequently asked
How many people live in Mercer County, Ohio? Mercer County, Ohio has about 42,484 residents according to the 2024 American Community Survey.
What is the median household income in Mercer County, Ohio? The typical household in Mercer County, Ohio earns about $76,782 a year. Half of households make more than that, and half make less.
Is Mercer County, Ohio expensive? In Mercer County, Ohio, the median home is worth about $210,600, and the typical rent is about $804 a month.
How educated are people in Mercer County, Ohio? About 21.9% of adults age 25 and over in Mercer County, Ohio hold a bachelor's degree or higher.
What is the poverty rate in Mercer County, Ohio? About 7.3% of people in Mercer County, Ohio live below the federal poverty line.
Has Mercer County, Ohio grown since 1990? Yes, Mercer County, Ohio has grown since 1990. The population has added about 3,041 residents, a change of about 8 percent over that period.
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