10 Most Populated ZIP Codes in Ohio

The top ZIP code for population in Ohio is 45011 (Fairfield, Butler County), with a population of 74,636. Across the top 10 most populated ZIP codes in Ohio, population ranges from 74,636 to 59,522, covering communities from Fairfield to Westerville.

Rank	ZIP	City	County	Population	Population
1	45011	Fairfield	Butler County	74,636	74,636
2	43123	Grove City	Franklin County	66,366	66,366
3	43026	Hilliard	Franklin County	64,644	64,644
4	44256	Medina	Medina County	64,606	64,606
5	43081	Westerville	Franklin County	64,314	64,314
6	43055	Newark	Licking County	62,697	62,697
7	43130	Lancaster	Fairfield County	62,450	62,450
8	44035	Elyria	Lorain County	62,024	62,024
9	44060	Mentor	Lake County	60,257	60,257
10	43230	Columbus	Franklin County	59,522	59,522

Methodology

Rankings are derived from the U.S. Census Bureau American Community Survey 5-Year Estimates, vintage 2019 to 2023, joined to USPS ZIP Code Tabulation Areas. We rank by population and surface the top 10 ZIP codes within Ohio. Values reflect ZCTA-level estimates and may differ slightly from city-level figures. Compiled and reviewed by the Zip Code Near Me Data Team.

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Reviewed by Zip Code Near Me Data Team. Last verified June 13, 2026.

10 Most Populated ZIP Codes in Ohio

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