Warren County, Ohio ZIP codes
12 ZIP codes are in Warren County, plus 12 that cross in from neighboring counties. It's part of the Cincinnati, OH-KY-IN metro area.
- ZIP codes
- 12
- Population in these ZIPs
- 230,451
- Avg. median income
- $111,200population-weighted
- Cities & towns
- 12
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Warren County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 45005 | Franklin | 32,251 | $75,399 | $275,500 |
| 45032 | Harveysburg | 683 | $66,618 | $215,700 |
| 45034 | Kings Mills | 968 | $151,875 | $432,200 |
| 45036 | Lebanon | 42,204 | $99,128 | $409,800 |
| 45039 | Maineville | 28,335 | $108,794 | $395,500 |
| 45040 | Mason | 59,518 | $133,240 | $497,700 |
| 45054 | Oregonia | 2,693 | $99,583 | $475,200 |
| 45065 | South Lebanon | 7,053 | $104,795 | $370,200 |
| 45066 | Springboro | 27,545 | $131,250 | $431,400 |
| 45068 | Waynesville | 11,597 | $96,147 | $452,000 |
| 45152 | Morrow | 14,850 | $123,366 | $404,000 |
| 45162 | Pleasant Plain | 2,754 | $84,722 | $326,800 |
ZIP codes partly in Warren County
These ZIP codes are mostly in a neighboring county but cover part of Warren County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 45042 | Middletown | Butler County | 27,652 | $69,520 | $248,300 |
| 45044 | Middletown | Butler County | 56,217 | $73,732 | $263,000 |
| 45050 | Monroe | Butler County | 12,248 | $104,282 | $352,100 |
| 45107 | Blanchester | Clinton County | 9,190 | $71,510 | $271,300 |
| 45113 | Clarksville | Clinton County | 3,877 | $104,750 | $395,800 |
| 45122 | Goshen | Clermont County | 10,977 | $83,342 | $303,500 |
| 45140 | Loveland | Clermont County | 57,211 | $114,827 | $443,700 |
| 45241 | Cincinnati | Hamilton County | 23,955 | $103,585 | $392,900 |
| 45249 | Cincinnati | Hamilton County | 14,490 | $105,804 | $584,600 |
| 45327 | Germantown | Montgomery County | 9,315 | $94,741 | $268,800 |
| 45342 | Miamisburg | Montgomery County | 36,152 | $84,907 | $262,400 |
| 45458 | Dayton | Montgomery County | 38,712 | $110,150 | $423,700 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Warren County
Nearby counties
Frequently asked questions
How many ZIP codes are in Warren County, Ohio?
12 ZIP codes are mainly in Warren County, and 12 more ZIP codes from neighboring areas reach partly into it.
What cities are in Warren County?
ZIP codes in Warren County use the city names Franklin, Harveysburg, Kings Mills, Lebanon, Maineville, Mason, Morrow, Oregonia, Pleasant Plain, South Lebanon, Springboro and Waynesville.
What metro area is Warren County in?
Warren County is part of the Cincinnati, OH-KY-IN metropolitan statistical area.