Putnam County, Ohio Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 70th-largest in Ohio
The population of Putnam County, Ohio is 34,352 as of the 2023 American Community Survey, making it the 70th-largest county in Ohio. The median household income is $82,785, the median home value is $191,600, and the median age is 40.0.
The population of Putnam County has declined 0.8% since 2010 (34,476 → 34,206), a -0.06% annualized rate.
34,352
Population
-0.06%
Annual growth
71
People / sq mi
$82,785
Median Income
$191,600
Median Home Value
Putnam County covers 483 sq mi of land at 71.2 people per square mile.
About Putnam County, OH
Putnam County is a county in Ohio with a population of 34,352. It ranks #70 among counties in Ohio by population. The median age is 40.0, in line with the national median. The population is 50.3% male and 49.7% female.
The median household income in Putnam County is $82,785, above the US median of $74,580. 5.3% of residents live below the federal poverty level. Home values sit at a median of $191,600, with monthly rent averaging $857. The homeownership rate of 85.8% is higher than the national rate of 64.8%.
Educational attainment in Putnam County reflects 26.3% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 5.7% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 22.1 minutes each way.
Putnam County Population History (2010-2024)
The county of Putnam County had a population of 34,476 in 2010 and 34,206 in 2024, a -0.8% growth over 14 years. The peak was 34,476 in 2010. Average annual growth rate: -0.05%.
34,206
Population (2024)
34,476
Population (2010)
34,476
Peak (2010)
-0.05%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 34,476 |
| 2011 | 34,386 |
| 2012 | 34,207 |
| 2013 | 34,122 |
| 2014 | 34,194 |
| 2015 | 34,020 |
| 2016 | 34,004 |
| 2017 | 33,870 |
| 2018 | 33,809 |
| 2019 | 33,843 |
| 2020 | 34,407 |
| 2021 | 34,371 |
| 2022 | 34,331 |
| 2023 | 34,254 |
| 2024 | 34,206 |
Race & Ethnicity
| White | 92.0% |
| Black or African American | 0.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.1% |
Age & Sex
40.0
Median Age
49.7%
Female
50.3%
Male
18.2%
Age 65+
Age Distribution
Children (under 15): 21.1% · Seniors (65+): 18.2%
Income & Poverty
| Median household income | $82,785+$13,105 vs state |
| Mean household income | $99,572 |
| Per-capita income | $38,660 |
| Poverty rate | 5.3%-3.9% vs state |
| Unemployment rate | 1.4% |
| Employment-to-population | 63.9% |
Top Industries by Employment
The largest employment sector in Putnam County is professional & business services, accounting for 26.3% of workers.
How residents commute
0.2%
Drive alone
1.6%
Carpool
86.6%
Public transit
5.7%
Work from home
22.1 min
Avg commute
Housing
$191,600$-7,600 vs state
Median home value
$857
Median rent
85.8%
Homeownership rate
13,870
Total housing units
95.0%
Occupied
5.0%
Vacant
14.2%
Renter-occupied
Social & access
96.4%
With health insurance
92.9%
With broadband internet
7.3%
Foreign-born
4.7%
Veterans (18+)
9.7%
With a disability
96.1%
Speak language other than English at home
Education
94.7%
High School+
26.3%
Bachelor's+
Largest cities in Ohio
Other counties in Ohio
Part of Ohio
Metro areas in Ohio
County rankings
Frequently Asked Questions
Putnam County, Ohio has a population of 34,352 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 70th-largest county in Ohio. Population density is 71 people per square mile.
The population of Putnam County has declined 0.8% since 2010 (34,476 → 34,206), a -0.06% annualized rate.
The median household income in Putnam County, Ohio is $82,785, with mean (average) household income of $99,572 and per-capita income of $38,660. 5.3% of residents live below the federal poverty level.
In Putnam County, the largest racial and ethnic groups are White (92.0%), Black or African American (0.9%), Hispanic or Latino (0.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Putnam County, Ohio is 40.0 years. Residents are 49.7% female and 50.3% male.
The median home value in Putnam County is $191,600 and median monthly rent is $857. 85.8% of occupied housing units are owner-occupied. The county has 13,870 total housing units, 5.0% of which are vacant.
The largest employment sector in Putnam County, Ohio is professional, scientific, and management services, employing 26.3% of workers. The unemployment rate is 1.4%.
Columbus is among the largest cities associated with Putnam County, Ohio, with a population of 906,480.
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Statewide data for Ohio
Population, race, income, age, and trends across Ohio
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.