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+
Largest cities in Ohio
Other counties in Ohio
Part of Ohio
Metro areas in Ohio
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.
Franklin County, OH Climate
Franklin County, OH has an average annual temperature of 11.6°C (53°F) and receives about 955 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
11.6°C
Avg Temp
955
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -2° / 28° | 57 mm |
| February | 0° / 31° | 53 mm |
| March | 5° / 42° | 74 mm |
| April | 11° / 52° | 86 mm |
| May | 17° / 62° | 103 mm |
| June | 22° / 71° | 99 mm |
| July | 24° / 75° | 105 mm |
| August | 23° / 74° | 93 mm |
| September | 19° / 67° | 75 mm |
| October | 13° / 55° | 60 mm |
| November | 7° / 44° | 79 mm |
| December | 1° / 34° | 71 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Franklin County, OH
The most comfortable months to visit Franklin County, OH are typically September, June and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -7°C low). July is usually the wettest month.
Where to stay near Franklin County
Visiting or relocating to Franklin County, OH? Compare hotels and short-term rentals across the county — live availability and prices.
Top-rated places to stay near Franklin County
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a move to Franklin County?
Get relocation and cost-of-living insights for Franklin County, OH by email. No spam, unsubscribe anytime.
More from Ohio
Population 1,249,418
Population 827,878
Population 538,087
Population 535,528
Full rankings of Ohio counties
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.