Cincinnati, OH-KY-IN Metro Area
The Cincinnati, OH-KY-IN metro area is made up of 15 counties in Ohio, Kentucky, and Indiana; the largest are Hamilton County, Butler County, and Warren County. About 2,312,858 people lived there on July 1, 2025 (Census estimate), 2.8% more than in April 2020.
- Population, July 2025
- 2,312,858 2.8% more than in April 2020
- Type
- Metropolitan statistical area
- Counties
- 15: 7 central, 8 outlying
- Land area
- 4,385 sq mi (11,358 km²)
- Time zone
- Eastern Time, Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Combined statistical area
- Cincinnati-Wilmington, OH-KY-IN
- CBSA code
- 17140
Counties in the Cincinnati, OH-KY-IN metro area, largest first
| County | Role | Population, July 2025 | Share of the area |
|---|---|---|---|
| Hamilton CountyOhio | Central | 838,418 | 36.3% |
| Butler CountyOhio | Central | 400,128 | 17.3% |
| Warren CountyOhio | Central | 257,181 | 11.1% |
| Clermont CountyOhio | Central | 216,977 | 9.4% |
| Kenton CountyKentucky | Central | 175,779 | 7.6% |
| Boone CountyKentucky | Central | 145,316 | 6.3% |
| Campbell CountyKentucky | Central | 95,441 | 4.1% |
| Dearborn CountyIndiana | Outlying | 51,609 | 2.2% |
| Brown CountyOhio | Outlying | 44,397 | 1.9% |
| Grant CountyKentucky | Outlying | 26,181 | 1.1% |
| Franklin CountyIndiana | Outlying | 23,286 | 1.0% |
| Pendleton CountyKentucky | Outlying | 14,800 | 0.6% |
| Gallatin CountyKentucky | Outlying | 8,840 | 0.4% |
| Bracken CountyKentucky | Outlying | 8,511 | 0.4% |
| Ohio CountyIndiana | Outlying | 5,994 | 0.3% |
A central county holds the area’s core, an urban area of at least 50,000 people. An outlying county is in the area because of commuting: at least a quarter of its workers have jobs in the central counties, or at least a quarter of the people working there live in them. A county belongs to one metro or micro area at most, and it counts whole, countryside included.
Principal city
- Cincinnati311,224 people
OMB names the area after its largest principal cities. A principal city is the area’s largest city, plus any other city that is very large or a big job center, and smaller ones with at least as many jobs as working residents (2020 Census and commuting figures). People counts are American Community Survey 2020–2024 5-year estimates.
Part of the Cincinnati-Wilmington, OH-KY-IN combined statistical area
OMB joins neighboring metro and micro areas into a combined statistical area when enough people commute between them. The other area in this one is
- Wilmington, OH Micro Area42,301 people
Bordering metro and micro areas, nearest first
Areas with a county on this area’s edge. Distances are straight lines between the areas’ largest cities.
- Wilmington, OH Micro Area42 mi northeast
- Dayton-Kettering-Beavercreek, OH Metro Area47 mi north
- Connersville, IN Micro Area49 mi northwest
- Greensburg, IN Micro Area55 mi west
- Lexington-Fayette, KY Metro Area76 mi south
Before using this answer on a form
A metro or micro area is a statistical area that OMB draws for federal statistics. It is not a city, a local government or a mailing address, and it is not a measure of urban and rural: whole counties count, rural parts included. Programs that use metro areas, such as housing income limits or wage rates, can use their own version of these lists; check the program’s own list for an address.
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