Zip Code 45251 — Cincinnati, OH

ZIP Code 45251 is associated with Cincinnati, OH, in Hamilton County. The listed population estimate is 20,254; estimated density is 658.2 people per square mile. Among records with population estimates, it ranks #19 of 54 in Hamilton County and #208 of 1,215 in OH.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.267890, -84.594220)

Data MetricLocal Statistic
Postal / Zip Code45251
Primary CityCincinnati
State / ProvinceOH
CountyHamilton
Total Population20,254
Population Density658.2 people/sq mi
TimezoneAmerica/New_York

How 45251 Compares

MetricZIP 45251Hamilton County recordsOH records
Population estimate20,254842,501 (sum)11,810,293 (sum)
Population Density658.2 /sq mi----
County population rank#19 of 54----
State population rank#208 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 45252Cincinnati2.1 mi4,684
ZIP 45231Cincinnati3.3 mi40,463
ZIP 45240Cincinnati3.8 mi29,600
ZIP 45218Cincinnati4.0 mi3,836
ZIP 45239Cincinnati4.5 mi29,607

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 →