There are 14 zip codes in Marion County, West Virginia. The most populated is 26554, located in Fairmont. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
2655441,983Fairmont
265823,770Mannington
265883,032Rivesville
265911,924Worthington
265591,541Barrackville
265711,483Farmington
26585755Metz
26576737Idamay
26572545Four States
26574439Grant Town
26587268Rachel
26563237Carolina
26560150Baxter
2658653Montana Mines

Zip Codes in Marion County, West Virginia by Population (2024)