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Zip Code 45601 — Chillicothe, OH

45601 is a ZIP Code associated with Chillicothe, OH, located within Ross. 45601 ranks #1 out of 9 ZIP codes in Ross County by population (and #20 out of 1,232 in OH). The area supports an estimated population of 55,836 residents across Data Pending housing units, with a population density of 61.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.309960, -82.955500)

Data MetricLocal Statistic
Postal / Zip Code45601
Primary CityChillicothe
State / ProvinceOH
CountyRoss
Total Population55,836
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density61.8 people/sq mi
TimezoneAmerica/New_York

How 45601 Compares

MetricZIP 45601Ross CountyOH State Average
Population55,83675,423 (Total)11,810,293 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density61.8 /sq mi----
County Pop Rank#1 of 9----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 45673Richmond Dale10.6 mi473N/A
Zip 45617Bourneville10.9 miN/AN/A
Zip 45644Kingston11.6 mi4,619N/A
Zip 45647Londonderry11.7 mi1,869N/A
Zip 45690Waverly12.8 mi13,988N/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 →