ZIP code
45042
Middletown, OH
45042 covers Middletown in Butler County, with 28,217 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 45042. Methodology
ZIP code map of 45042

About ZIP code 45042
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 45042. Not ACS. Methodology
People in 45042
Race
- White23,462
- Black or African American1,289
- American Indian or Alaska Native55
- Asian188
- Native Hawaiian and Pacific Islander3
- Other race400
- Two or more races1,575
Hispanic or Latino (any race): 892
Age
- Under 103,098
- 10 to 193,390
- 20 to 293,161
- 30 to 393,204
- 40 to 493,111
- 50 to 593,777
- 60 to 693,825
- 70 to 792,274
- 80 and older1,132
Income and housing in 45042
Education
- High school graduate91.3%
- Bachelor's degree19.8%
- Graduate degree6.6%
Places covering 45042
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.
- Middletown66.6%
- Jacksonburg0.1%
- Trenton0.0%
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.
- Butler County96.5%
- Warren County1.9%
- Preble County1.5%
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
33.3% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 45042
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 25,452 | |
| 2006 | 24,392 | |
| 2007 | 26,264 | |
| 2008 | 24,392 | |
| 2009 | 24,162 | |
| 2010 | 23,997 | |
| 2011 | 27,202 | 23,890 |
| 2012 | 26,484 | 23,620 |
| 2013 | 26,623 | 23,430 |
| 2014 | 26,643 | 23,480 |
| 2015 | 26,247 | 23,400 |
| 2016 | 26,290 | 23,210 |
| 2017 | 26,649 | 23,380 |
| 2018 | 26,638 | 23,430 |
| 2019 | 27,470 | 23,670 |
| 2020 | 28,475 | 23,740 |
| 2021 | 28,216 | 23,900 |
| 2022 | 28,812 | 24,110 |
| 2023 | 28,217 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 45042
12 nearest ZIP centroids (any distance)
- 45327Germantown5.0 miPop 8,949 · Income $84,538
- 45044Middletown5.2 miPop 54,452 · Income $71,942
- 45067Trenton5.4 miPop 15,328 · Income $88,662
- 45005Franklin7.2 miPop 31,906 · Income $74,239
- 45070West Elkton7.7 miPop 146 · Income $64,375
- 45050Monroe8.3 miPop 12,162 · Income $104,519
- 45055Overpeck8.4 miPop 97 · Income —
- 45330Gratis8.6 miPop 810 · Income $76,033
- 45062Seven Mile8.8 miPop 667 · Income $53,552
- 45342Miamisburg9.2 miPop 36,675 · Income $83,936
- 45325Farmersville9.4 miPop 2,746 · Income $79,688
- 45011Hamilton9.9 miPop 74,636 · Income $90,360
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 45042, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 45042 FAQ
- What city is ZIP code 45042 in?
- 45042 is in Middletown, OH.
- What county is 45042 in?
- 45042 is in Butler County.
- What is the median household income in 45042?
- The median household income in 45042 is $66,732.
- Which ZIP codes are near 45042?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 45042.