Home > OH > Putnam County > Columbus Grove > Zip 45830

Zip Code 45830 — Columbus Grove, OH

45830 is a ZIP Code associated with Columbus Grove, OH, located within Putnam. The postal region supports an estimated population of 5,199 residents across Data Pending housing units, with a population density of 21.2 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.906160, -84.092130)

Data MetricLocal Statistic
Postal / Zip Code45830
Primary CityColumbus Grove
State / ProvinceOH
CountyPutnam
Total Population5,199
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density21.2 people/sq mi
TimezoneAmerica/New_York

How 45830 Compares

MetricZIP 45830Putnam CountyOH State Average
Population5,19935,72511,810,293
Median IncomeData PendingN/AN/A
Population Density21.2 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 45893Vaughnsville3.3 mi160N/A
Zip 45820Cairo5.2 mi581N/A
Zip 45809Gomer6.5 mi45N/A
Zip 45853Kalida7.7 mi1,526N/A
Zip 45807Lima7.9 mi11,774N/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 →