County ProfileOH
Warren County
Population: 242,337 · 12 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
242,337
People
Median age
40.1
Housing
Total households
92,052
Income
Median household income
$110,132
Housing
Total housing units
96,061
Employment
Employment rate
63.9%
Education
Bachelor’s degree or higher
45.6%
Healthcare
Insured population
96.1%
County details
Local time 03:13:28(ET)| Name | Warren |
|---|---|
| Total ZIP codes | 12total |
| ZIP codes (by type) | 11 Standard1 PO Box |
| Area code | 283, 326, 513, 937 |
| Timezone | Eastern Time (ET) |
| Coordinates | 39.4256625, -84.1699402 |
| Land area | 401.4 sq miles(1,039.7 km²) |
Map of Warren county, Ohio with ZIP codes
Cities and Communities in Warren County
Compare the largest cities in Warren County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Mason | 34,792 | $125,401 | 1ZIPs |
| Lebanon | 20,841 | $83,685 | 1ZIPs |
| Springboro | 19,062 | $119,659 | 1ZIPs |
| Franklin | 11,690 | $58,587 | 1ZIPs |
| South Lebanon | 6,384 | $104,511 | 1ZIPs |
| Waynesville | 2,669 | $79,048 | 1ZIPs |
| Oregonia | 2,499 | — | 1ZIPs |
| Morrow | 2,049 | $82,260 | 1ZIPs |
| Maineville | 1,405 | $92,979 | 1ZIPs |
| Kings Mills | 1,336 | $139,643 | 1ZIPs |
| Harveysburg | 554 | $71,420 | 1ZIPs |
| Pleasant Plain | 129 | $97,250 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Warren County
Review the most populated postal areas across Warren County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 45040 | Mason | $133,240 | 57,153 |
| 45036 | Lebanon | $99,128 | 41,060 |
| 45005 | Franklin | $75,399 | 31,577 |
| 45039 | Maineville | $108,794 | 27,529 |
| 45066 | Springboro | $131,250 | 26,399 |
| 45152 | Morrow | $123,366 | 13,617 |
| 45068 | Waynesville | $96,147 | 11,911 |
| 45065 | South Lebanon | $104,795 | 6,725 |
| 45162 | Pleasant Plain | $84,722 | 2,730 |
| 45054 | Oregonia | $99,583 | 2,499 |
| 45034 | Kings Mills | $151,875 | 1,166 |
| 45032 | Harveysburg | $66,618 | 459 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS