Franklin County, Ohio Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 1st-largest in Ohio
The population of Franklin County, Ohio is 1,321,635 as of the 2023 American Community Survey, making it the 1st-largest county in Ohio. The median household income is $73,795, the median home value is $265,700, and the median age is 34.7.
The population of Franklin County has grown 16.3% since 2010 (1,166,218 → 1,356,303), a +1.08% annualized rate.
1,321,635
Population
+1.08%
Annual growth
2482
People / sq mi
$73,795
Median Income
$265,700
Median Home Value
Franklin County covers 532 sq mi of land at 2482.3 people per square mile.
About Franklin County, OH
Franklin County stands apart on settlement density — it is among the most densely settled of US counties, at roughly 2,482 people per square mile. Franklin County is a county in Ohio with a population of 1,321,635. That makes it one of the ten largest counties in Ohio in the country, at #1 by population.
The typical household earns $73,795 a year, below the US median of $78,538. The poverty rate is 10.5%, below the national 12.4%. Home values run above average at $265,700, with typical rent around $1,233.
Degree attainment is near the top of the range for US counties: 42.0% of adults 25+ hold a bachelor’s, above the 35.0% national rate. An unusually large 17.0% of workers are remote, above the national 14.0%, and the average commute runs about 22 minutes each way.
That density explains much of the rest of the profile in Franklin County: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Franklin County Population History (2010-2024)
The county of Franklin County had a population of 1,166,218 in 2010 and 1,356,303 in 2024, a 16.3% growth over 14 years. The peak was 1,356,303 in 2024. Average annual growth rate: 1.09%.
1,356,303
Population (2024)
1,166,218
Population (2010)
1,356,303
Peak (2024)
1.09%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 1,166,218 |
| 2011 | 1,180,917 |
| 2012 | 1,199,257 |
| 2013 | 1,219,186 |
| 2014 | 1,238,758 |
| 2015 | 1,257,891 |
| 2016 | 1,275,212 |
| 2017 | 1,296,374 |
| 2018 | 1,308,599 |
| 2019 | 1,318,766 |
| 2020 | 1,324,505 |
| 2021 | 1,317,840 |
| 2022 | 1,327,687 |
| 2023 | 1,338,903 |
| 2024 | 1,356,303 |
Race & Ethnicity
| White | 60.5% |
| Black or African American | 23.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Age & Sex
34.7
Median Age
50.9%
Female
49.1%
Male
12.8%
Age 65+
Age Distribution
Children (under 15): 19.8% · Seniors (65+): 12.8%
Income & Poverty
| Median household income | $73,795+$4,115 vs state |
| Mean household income | $102,386 |
| Per-capita income | $42,855 |
| Poverty rate | 10.5%+1.3% vs state |
| Unemployment rate | 3.2% |
| Employment-to-population | 66.6% |
Top Industries by Employment
The largest employment sector in Franklin County is professional & business services, accounting for 25.0% of workers.
How residents commute
1.7%
Drive alone
2.2%
Carpool
70.5%
Public transit
17.0%
Work from home
21.8 min
Avg commute
Housing
$265,700+$66,500 vs state
Median home value
$1,233
Median rent
53.0%
Homeownership rate
588,892
Total housing units
93.0%
Occupied
7.0%
Vacant
47.0%
Renter-occupied
Social & access
91.6%
With health insurance
96.6%
With broadband internet
21.4%
Foreign-born
5.4%
Veterans (18+)
11.6%
With a disability
84.1%
Speak language other than English at home
Education
91.2%
High School+
42.0%
Bachelor's+
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County rankings
Common questions about Franklin County, OH
Frequently Asked Questions
Franklin County, Ohio has a population of 1,321,635 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 1st-largest county in Ohio. Population density is 2482 people per square mile.
The population of Franklin County has grown 16.3% since 2010 (1,166,218 → 1,356,303), a +1.08% annualized rate.
The median household income in Franklin County, Ohio is $73,795, with mean (average) household income of $102,386 and per-capita income of $42,855. 10.5% of residents live below the federal poverty level.
In Franklin County, the largest racial and ethnic groups are White (60.5%), Black or African American (23.0%), Hispanic or Latino (1.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Franklin County, Ohio is 34.7 years. Residents are 50.9% female and 49.1% male.
The median home value in Franklin County is $265,700 and median monthly rent is $1,233. 53.0% of occupied housing units are owner-occupied. The county has 588,892 total housing units, 7.0% of which are vacant.
The largest employment sector in Franklin County, Ohio is professional, scientific, and management services, employing 25.0% of workers. The unemployment rate is 3.2%.
Columbus is among the largest cities associated with Franklin County, Ohio, with a population of 906,480.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.