ZIP codes in Mercer County
22 ZIPs touch Mercer County, West Virginia. The blue dashed line is the county border; orange ZIPs reach into it.
22
ZIP codes
5
cross the county line
59,538
people in these ZIPs
55
counties in WV
Most people
Mercer County ZIP list
More counties in West Virginia
- Lincoln County21
- Logan County35
- Marion County22
- Marshall County10
- Mason County19
- McDowell County37
- Mineral County10
- Mingo County23
- Monongalia County23
- Monroe County15
- Morgan County4
- Nicholas County28
Questions people actually ask
How many ZIP codes are in Mercer County, West Virginia?
22 ZIP codes reach into Mercer County, including 2 PO Box or single-address ZIPs placed by the town they serve. 5 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Mercer County has the most people?
24701 (Bluefield) has about 17,117 residents, the most of any ZIP touching Mercer County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Mercer County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Mercer County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from