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Zip Code 45039 — Maineville, OH

45039 is a ZIP Code associated with Maineville, OH, located within Warren. The postal region supports an estimated population of 28,335 residents across Data Pending housing units, with a population density of 703.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.326550, -84.235860)

Data MetricLocal Statistic
Postal / Zip Code45039
Primary CityMaineville
State / ProvinceOH
CountyWarren
Total Population28,335
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density703.3 people/sq mi
TimezoneAmerica/New_York

How 45039 Compares

MetricZIP 45039Warren CountyOH State Average
Population28,335230,45111,810,293
Median IncomeData PendingN/AN/A
Population Density703.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 45034Kings Mills2.2 mi968N/A
Zip 45065South Lebanon3.2 mi7,053N/A
Zip 45040Mason4.3 mi59,518N/A
Zip 45140Loveland4.9 mi57,211N/A
Zip 45249Cincinnati6.0 mi14,490N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →