Polk County, Tennessee
County seat: Benton · Population 18,592 (2025) · 435 sq mi
Polk County is the 71st most populous of Tennessee's 95 counties, with 18,592 people (2025 estimate). Its county seat is Benton. It is part of the East Tennessee region, one of the 3 Grand Divisions of Tennessee. The map shows its 3 cities and towns and the 6 neighboring counties.
Polk County facts
- County seat
- Benton
- Population (2025 estimate)
- 18,592 +6% since 2020
- Land area
- 435 sq mi 50th largest of 95
- Water area
- 8 sq mi
- Population density
- 43 per sq mi
- Established
- 1839
- Same name
- One of 12 Polk Counties in the US
- Named after
- James K. Polk President of the United States from 1845 to 1849 (1795–1849)
- Largest city
- Benton 1,476
- Median household income
- $62,522
- Cities and towns
- 3 plus 4 CDPs
- ZIP codes
- 13
- Time zone
- Eastern
- FIPS code
- 47139
Cities and towns in Polk County
Polk County has 3 incorporated cities, towns and villages. Populations count the people living inside Polk County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Benton (county seat) | Town | 1,476 | |
| Copperhill | City | 458 | |
| Ducktown | City | 441 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Delano | 670 | McMinn County |
| Ocoee | 208 | |
| Farner | 197 | |
| Conasauga | 128 |
ZIP codes in Polk County
13 ZIP codes reach into Polk County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 37307 also Bradley County
- 37309 also McMinn County
- 37310 also Bradley County
- 37316
- 37317
- 37323 also Bradley County
- 37325 also McMinn County
- 37326
- 37333
- 37361
- 37362 also Bradley County
- 37369 also Monroe County
- 37391
Population of Polk County, 2020–2025
Polk County grew by 1,056 people (+6%) between April 2020 and July 2025: 659 more deaths than births and a net gain of 1,697 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 17,558 |
| 2021 | 17,704 |
| 2022 | 17,776 |
| 2023 | 18,064 |
| 2024 | 18,408 |
| 2025 | 18,592 |
Neighboring counties
- Bradley County west · 115,465 people
- Fannin County, Georgia southeast · 26,111 people
- Monroe County northeast · 49,730 people
- Cherokee County, North Carolina east · 30,830 people
- McMinn County north · 57,404 people
- Murray County, Georgia southwest · 41,607 people
Printable Polk County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (80 KB)
- PNG (2400 px) (71 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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