Dyer County, Tennessee
County seat: Dyersburg · Population 36,320 (2025) · 512 sq mi
Dyer County is the 44th most populous of Tennessee's 95 counties, with 36,320 people (2025 estimate). Its county seat is Dyersburg. It is part of the West Tennessee region, one of the 3 Grand Divisions of Tennessee. The map shows its 3 cities and towns and the 7 neighboring counties.
Dyer County facts
- County seat
- Dyersburg
- Population (2025 estimate)
- 36,320 −1.3% since 2020
- Land area
- 512 sq mi 35th largest of 95
- Water area
- 14 sq mi
- Population density
- 71 per sq mi
- Established
- 1823
- Largest city
- Dyersburg 15,906
- Median household income
- $58,154
- Cities and towns
- 3 plus 5 CDPs
- ZIP codes
- 11
- Time zone
- Central
- FIPS code
- 47045
Cities and towns in Dyer County
Dyer County has 3 incorporated cities, towns and villages. Populations count the people living inside Dyer County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Dyersburg (county seat) | City | 15,906 | |
| Newbern | Town | 3,222 | |
| Trimble | Town | 528 | Obion County |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Fowlkes | 753 | |
| Finley | 481 | |
| Lenox | 348 | |
| Miston | 96 | |
| Bogota | 67 |
ZIP codes in Dyer County
11 ZIP codes reach into Dyer County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 38007
- 38024
- 38030
- 38034 also Crockett County
- 38040 also Lauderdale and Crockett counties
- 38047
- 38059 also Gibson County
- 38070
- 38080 also Lake and Obion counties
- 38240 also Obion County
- 38259 also Obion and Gibson counties
Population of Dyer County, 2020–2025
Dyer County shrank by 479 people (−1.3%) between April 2020 and July 2025: 494 more deaths than births and a net gain of 22 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 36,710 |
| 2021 | 36,621 |
| 2022 | 36,415 |
| 2023 | 36,495 |
| 2024 | 36,484 |
| 2025 | 36,320 |
Neighboring counties
- Lauderdale County southwest · 24,617 people
- Obion County northeast · 30,067 people
- Gibson County east · 51,779 people
- Pemiscot County, Missouri northwest · 14,465 people
- Crockett County southeast · 14,006 people
- Lake County north · 6,249 people
- Mississippi County, Arkansas southwest · 37,828 people
Printable Dyer 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) (92 KB)
- PNG (2400 px) (80 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.
Back to the Tennessee county map with all 95 counties. Found an error? Tell us.