Zip Code 45133 — Hillsboro, OH

ZIP Code 45133 is associated with Hillsboro, OH, in Highland County. The listed population estimate is 23,443; estimated density is 28.8 people per square mile. Among records with population estimates, it ranks #1 of 7 in Highland County and #165 of 1,215 in OH.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.156950, -83.572820)

Data MetricLocal Statistic
Postal / Zip Code45133
Primary CityHillsboro
State / ProvinceOH
CountyHighland
Total Population23,443
Population Density28.8 people/sq mi
TimezoneAmerica/New_York

How 45133 Compares

MetricZIP 45133Highland County recordsOH records
Population estimate23,44342,566 (sum)11,810,293 (sum)
Population Density28.8 /sq mi----
County population rank#1 of 7----
State population rank#165 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 45172Sinking Spring11.5 mi308
ZIP 45624Cynthiana12.1 miN/A
ZIP 45679Seaman12.5 mi2,841
ZIP 45155Mowrystown12.5 mi510
ZIP 45142Lynchburg13.0 mi4,187

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 →