ZIP codes in Polk County
14 ZIPs touch Polk County, Tennessee. The blue dashed line is the county border; orange ZIPs reach into it.
14
ZIP codes
7
cross the county line
57,108
people in these ZIPs
95
counties in TN
Most people
Polk County ZIP list
More counties in Tennessee
- Moore County10
- Morgan County12
- Obion County14
- Overton County12
- Perry County4
- Pickett County5
- Putnam County12
- Rhea County6
- Roane County10
- Robertson County13
- Rutherford County23
- Scott County9
Questions people actually ask
How many ZIP codes are in Polk County, Tennessee?
14 ZIP codes reach into Polk County, including 1 PO Box or single-address ZIPs placed by the town they serve. 7 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Polk County has the most people?
37323 (Cleveland) has about 31,948 residents, the most of any ZIP touching Polk County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Polk 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 Polk 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