There are 16 zip codes in Warren County, Pennsylvania. The most populated is 16365, located in Warren. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
1636517,377Warren
163453,670Russell
163713,129Youngsville
163502,332Sugar Grove
163401,940Pittsfield
163131,805Clarendon
163511,760Tidioute
163471,535Sheffield
16436801Spring Creek
16402703Bear Lake
16405555Columbus
16420447Grand Valley
16329428Irvine
16352226Tiona
16416136Garland
163120Chandlers Valley

Zip Codes in Warren County, Pennsylvania by Population (2024)