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Zip Code 45875 — Ottawa, OH

45875 is a ZIP Code associated with Ottawa, OH, located within Putnam. The postal region supports an estimated population of 11,547 residents across Data Pending housing units, with a population density of 43.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.022710, -84.061180)

Data MetricLocal Statistic
Postal / Zip Code45875
Primary CityOttawa
State / ProvinceOH
CountyPutnam
Total Population11,547
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density43.5 people/sq mi
TimezoneAmerica/New_York

How 45875 Compares

MetricZIP 45875Putnam CountyOH State Average
Population11,54735,72511,810,293
Median IncomeData PendingN/AN/A
Population Density43.5 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 45848Glandorf0.8 mi76N/A
Zip 45864Miller City6.7 mi225N/A
Zip 45856Leipsic7.1 mi5,042N/A
Zip 45853Kalida7.4 mi1,526N/A
Zip 45877Pandora8.0 mi2,562N/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 →