Zip Code 45240 — Cincinnati, OH

ZIP Code 45240 is associated with Cincinnati, OH, in Hamilton County. The listed population estimate is 29,600; estimated density is 1,180.4 people per square mile. Among records with population estimates, it ranks #6 of 54 in Hamilton County and #103 of 1,215 in OH.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.284340, -84.526050)

Data MetricLocal Statistic
Postal / Zip Code45240
Primary CityCincinnati
State / ProvinceOH
CountyHamilton
Total Population29,600
Population Density1,180.4 people/sq mi
TimezoneAmerica/New_York

How 45240 Compares

MetricZIP 45240Hamilton County recordsOH records
Population estimate29,600842,501 (sum)11,810,293 (sum)
Population Density1,180.4 /sq mi----
County population rank#6 of 54----
State population rank#103 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 45218Cincinnati1.3 mi3,836
ZIP 45231Cincinnati2.7 mi40,463
ZIP 45246Cincinnati3.2 mi13,527
ZIP 45014Fairfield3.3 mi45,773
ZIP 45251Cincinnati3.8 mi20,254

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 →