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Zip Code 45423 — Dayton, OH

45423 is a ZIP Code associated with Dayton, OH, located within Montgomery. 45423 ranks #32 out of 32 ZIP codes in Montgomery County by population (and #1227 out of 1,232 in OH). The area supports an estimated population of Data Pending residents across Data Pending housing units, with a population density of Data Pending people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.760400, -84.191120)

Data MetricLocal Statistic
Postal / Zip Code45423
Primary CityDayton
State / ProvinceOH
CountyMontgomery
Total PopulationData Pending
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population DensityData Pending people/sq mi
TimezoneAmerica/New_York

How 45423 Compares

MetricZIP 45423Montgomery CountyOH State Average
PopulationData Pending507,675 (Total)11,810,293 (Total)
Average ZIP IncomeData PendingN/AN/A
Population DensityData Pending /sq mi----
County Pop Rank#32 of 32----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 45402Dayton0.9 mi9,407N/A
Zip 45469Dayton1.5 mi168N/A
Zip 45410Dayton1.9 mi14,694N/A
Zip 45403Dayton2.2 mi13,608N/A
Zip 45409Dayton2.6 mi15,293N/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 →