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 distinguished by its share of foreign-born residents, 7.3% of the population. Putnam County is a county in Ohio with a population of 34,352.
The typical household earns $82,785 a year, above the US median of $78,538. Poverty is relatively low for US counties at 5.3%, below the national 12.4%. The typical home is valued at $191,600, with typical rent around $857.
Degree attainment is mid-range for US counties: 26.3% of adults hold a four-year degree, below the national 35.0%. Remote work is on the lower side here, at 5.7%, below the national 14.0%, and the average commute runs about 22 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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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.