Franklin County, Ohio Demographics

Population trends, housing costs, income, commuting, and health, all on one page.

Franklin County, OH Population Density Map and Area Scores

Area Score

Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.

  • B
    Health Around average
  • B
    Income Around average
    Wealthier than 82% of counties in Ohio
  • B
    Education Around average
    Among the top 5 best educated counties in Ohio

Source: Map AI Methodology

Franklin County
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Population density, people per sq mi

Population: density and quick facts

Metric Franklin County Ohio Avg U.S. Average
Population 1,332,477 11,799,428 337,468,954
Population density (per sq mi) 2451.3 263.2 86.4
Population growth (%/yr) 0.99% 0.23% 0.59%
Median age 33.8 38.5 37.3
Households 552,856 4,857,236 130,235,071

Population in Franklin County grew by 18.5% from 2009 to 2024, reaching 1,332,477 in 2024.

Population Growth 2009–2024

Year Franklin County

Race & Ethnicity

Group Share

Age & Sex

The largest generation in Franklin County is Millennials, aged 29–44, at 25.0% of residents. That is 3.9 points above Ohio as a whole.

Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Ohio, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.

Male and female share

Women are 50.9% of the people living in Franklin County and men 49.1%.

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Residents matching this profile

1,332,477

100% of everyone living in Franklin County

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Economy

Franklin County has a the economy index of B, which means it is quite prosperous.

Metric Franklin County Ohio Avg U.S. Average
Median household income $75,175 $71,509 $80,455
Income growth (%/yr) 4.12% 4.38% 4.80%
Unemployment rate 4.6% 4.8% 5.2%

The median household income in Franklin County is about 5% higher than in Ohio.

Detailed wealth and income breakdown →

Housing

Metric Franklin County Ohio Avg U.S. Average
Median home price $223,791 $139,044 $248,835
Median rent $1,302 $1,033 $1,407
Homeownership rate 52.8% 67.2% 65.2%

The median home price in Franklin County is about 14.3 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,302 per month for that long.

Full housing market analysis →

Commute Time & Mobility

Commuters in Franklin County spend about 42 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 174 hours, about 7.2 full days, spent commuting.

Metric Franklin County Ohio Avg U.S. Average
One-way commute (min) 20.9 21.1 22.4
Round-trip commute (min) 41.7 42.2 44.8
Yearly time spent (hours) 174 176 187
Estimated yearly cost $5,389 $5,447 $5,790
Work from home 19.3% 13.0% 15.0%
Highway traffic (vehicles/day) 16,515 8,648 8,813
Local road traffic (vehicles/day) 2,395 1,212 1,355

Fastest commutes among counties in Ohio: Hancock County (15.3 min), Van Wert County (15.5 min), Mercer County (16.0 min).
Slowest: Morgan County (32.5 min), Vinton County (32.0 min), Brown County (32.0 min).

The average commute time in Franklin County is about the same as in Ohio.

Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.

Commute and transport details →

Education & Households

Franklin County has a education index of B, which means it is quite educated.

Metric Franklin County Ohio Avg U.S. Average
Bachelor's degree or higher 38.5% 28.1% 31.6%
Average household size 2.36 2.37 2.53

Highest education index among counties in Ohio: Delaware County (0.4), Warren County (0.4), Greene County (0.3).
Lowest: Holmes County (0.1), Vinton County (0.2), Noble County (0.2).

Health

Franklin County has a health index of B, which means it is quite healthy.

Metric Franklin County Ohio Avg U.S. Average
Life expectancy (years) 76.2 77.0 78.3
Self-rated poor health 16.6% 17.2% 16.3%
Smokers 21.8% 24.3% 19.0%

Highest health index among counties in Ohio: Delaware County (0.8), Union County (0.8), Warren County (0.8).
Lowest: Adams County (0.8), Holmes County (0.8), Scioto County (0.8).

Full health data →

Franklin County, OH Compared With Nearby Counties

Franklin County, OH is the largest of the 6 counties compared here, 1,332,477 residents against a local median of 67,322. Where Franklin County, OH breaks from the counties next to it is median household income, sitting 18% below the local median of $91,280 at $75,175. That is the weaker end of the local range on this measure.

Commute tells the same story from another angle: 20.9 min against a local median of 25.2 min, 17% below it. The picture is mixed rather than uniform: commute runs ahead of the neighbourhood while median household income runs behind it, so Franklin County, OH is trading one against the other rather than simply out-performing what surrounds it. The counties themselves spread $60,176 on median household income, so Franklin County, OH sits at one end of an already wide local range rather than apart from it. Franklin County, OH has the 5th highest median household income of the 6 areas compared here.

Area Population Median household income Median home price Commute
Franklin County, OH 1,332,477 $75,175 #5/6 $223,791 #5/6 20.9 min #1/6
Delaware County, OH 226,834 $134,160 $454,424 23.8 min
Pickaway County, OH 60,131 $73,984 $39,614 27.3 min
Madison County, OH 44,416 $88,282 $268,005 25.2 min
Fairfield County, OH 163,453 $91,280 $319,540 26.8 min
Union County, OH 67,322 $111,904 $242,497 23.4 min

Frequently Asked Questions

Common questions about Franklin County, Ohio.

What is the population of Franklin County, Ohio?

About 1,332,477 people live in Franklin County, Ohio, in 552,856 households of 2.4 people on average. The median age is 33.8, so residents are younger than the U.S. median of 37.3 by about 4 years.

How densely populated is Franklin County, Ohio?

Averaged over its land area, Franklin County, Ohio has 2,451 people per square mile, a density typical of urban and suburban areas. That is about 28 times the U.S. average of 86.

Is Franklin County, Ohio an affordable place to live?

The median home costs 3.0 times the median household income ($223,791 against $75,175), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,302 a month takes about 21% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.

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