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Zip Code 45309 — Brookville, OH

45309 is a ZIP Code associated with Brookville, OH, located within Montgomery. 45309 ranks #21 out of 32 ZIP codes in Montgomery County by population (and #348 out of 1,232 in OH). The area supports an estimated population of 11,876 residents across Data Pending housing units, with a population density of 69.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.844750, -84.422040)

Data MetricLocal Statistic
Postal / Zip Code45309
Primary CityBrookville
State / ProvinceOH
CountyMontgomery
Total Population11,876
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density69.5 people/sq mi
TimezoneAmerica/New_York

How 45309 Compares

MetricZIP 45309Montgomery CountyOH State Average
Population11,876507,675 (Total)11,810,293 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density69.5 /sq mi----
County Pop Rank#21 of 32----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 45315Clayton4.5 mi4,905N/A
Zip 45354Phillipsburg4.7 mi553N/A
Zip 45378Verona5.3 mi539N/A
Zip 45322Englewood6.1 mi20,884N/A
Zip 45426Dayton6.5 mi14,114N/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 →