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Zip Code 45439 — Dayton, OH

ZIP Code 45439 is associated with Dayton, OH, in Montgomery County. The listed population estimate is 11,914; estimated density is 591.3 people per square mile. Among records with population estimates, it ranks #20 of 31 in Montgomery County and #347 of 1,215 in OH.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.698670, -84.229440)

Data MetricLocal Statistic
Postal / Zip Code45439
Primary CityDayton
State / ProvinceOH
CountyMontgomery
Total Population11,914
Population Density591.3 people/sq mi
TimezoneAmerica/New_York

How 45439 Compares

MetricZIP 45439Montgomery County recordsOH records
Population estimate11,914507,675 (sum)11,810,293 (sum)
Population Density591.3 /sq mi----
County population rank#20 of 31----
State population rank#347 of 1,215----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in OH

ZIP CodeCityDistancePopulation estimate
ZIP 45449Dayton2.4 mi19,066
ZIP 45409Dayton2.7 mi15,293
ZIP 45428Dayton3.4 mi272
ZIP 45419Dayton3.5 mi17,008
ZIP 45429Dayton3.7 mi26,347

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 →