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Zip Code 45405 — Dayton, OH

45405 is a ZIP Code associated with Dayton, OH, located within Montgomery. The postal region supports an estimated population of 18,955 residents across Data Pending housing units, with a population density of 1,844.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.792410, -84.215920)

Data MetricLocal Statistic
Postal / Zip Code45405
Primary CityDayton
State / ProvinceOH
CountyMontgomery
Total Population18,955
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density1,844.4 people/sq mi
TimezoneAmerica/New_York

How 45405 Compares

MetricZIP 45405Montgomery CountyOH State Average
Population18,955507,67511,810,293
Median IncomeData PendingN/AN/A
Population Density1,844.4 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 45406Dayton1.5 mi19,991N/A
Zip 45402Dayton2.3 mi9,407N/A
Zip 45416Dayton2.5 mi5,640N/A
Zip 45423Dayton2.6 miN/AN/A
Zip 45414Dayton3.3 mi21,167N/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 →