ZIP code
45231
Cincinnati, OH
45231 covers Cincinnati in Hamilton County, with 40,852 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 45231. Methodology
ZIP code map of 45231

About ZIP code 45231
Acceptable cities: Mount Healthy, Wyoming
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 45231. Not ACS. Methodology
People in 45231
Race
- White19,317
- Black or African American18,140
- American Indian or Alaska Native112
- Asian1,064
- Native Hawaiian and Pacific Islander26
- Other race889
- Two or more races2,386
Hispanic or Latino (any race): 1,399
Age
- Under 105,000
- 10 to 195,710
- 20 to 294,852
- 30 to 395,202
- 40 to 494,596
- 50 to 595,588
- 60 to 695,676
- 70 to 793,328
- 80 and older1,982
Income and housing in 45231
Education
- High school graduate91.2%
- Bachelor's degree27.2%
- Graduate degree8.6%
Places covering 45231
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Finneytown20.0%
- Mount Healthy16.7%
- Northbrook8.0%
- Pleasant Run7.2%
- New Burlington5.8%
- Skyline Acres3.3%
- Pleasant Hills2.3%
- Wyoming0.5%
- Cincinnati0.4%
- Northgate0.3%
- Forest Park0.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Hamilton County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
19.1% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 45231
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 40,157 | |
| 2006 | 38,837 | |
| 2007 | 40,952 | |
| 2008 | 38,583 | |
| 2009 | 38,822 | |
| 2010 | 38,689 | |
| 2011 | 41,310 | 38,413 |
| 2012 | 40,393 | 38,220 |
| 2013 | 40,728 | 38,120 |
| 2014 | 40,703 | 37,990 |
| 2015 | 39,860 | 38,090 |
| 2016 | 39,765 | 37,730 |
| 2017 | 41,276 | 38,020 |
| 2018 | 40,071 | 37,800 |
| 2019 | 40,626 | 38,090 |
| 2020 | 41,599 | 37,860 |
| 2021 | 42,808 | 36,580 |
| 2022 | 41,466 | 36,280 |
| 2023 | 40,852 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 45231
12 nearest ZIP centroids (any distance)
- 45218Cincinnati1.5 miPop 3,815 · Income $74,617
- 45240Cincinnati2.7 miPop 29,453 · Income $66,918
- 45224Cincinnati3.1 miPop 22,186 · Income $57,754
- 45251Cincinnati3.9 miPop 20,561 · Income $75,620
- 45239Cincinnati3.9 miPop 29,035 · Income $58,276
- 45215Cincinnati4.0 miPop 30,806 · Income $71,949
- 45216Cincinnati4.3 miPop 9,493 · Income $51,602
- 45232Cincinnati4.3 miPop 7,257 · Income $25,232
- 45246Cincinnati4.8 miPop 13,925 · Income $70,150
- 45252Cincinnati5.2 miPop 4,941 · Income $96,750
- 45223Cincinnati5.4 miPop 13,049 · Income $46,930
- 45014Fairfield5.5 miPop 45,652 · Income $69,624
ZIP centroids within 2 miles
| ZIP | City | State | Distance (miles) | ACS population | Median income |
|---|---|---|---|---|---|
| 45218 | Cincinnati | OH | 1.5 mi | 3,815 | $74,617 |
ZIPs within 2 miles of this place
Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.
ZIP code 45231 FAQ
- What city is ZIP code 45231 in?
- 45231 is in Cincinnati, OH.
- What county is 45231 in?
- 45231 is in Hamilton County.
- What is the median household income in 45231?
- The median household income in 45231 is $69,140.
- Which ZIP codes are near 45231?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 45231.