Martin County, North Carolina
County seat: Williamston · Population 21,601 (2025) · 456 sq mi
Martin County is the 78th most populous of North Carolina's 100 counties, with 21,601 people (2025 estimate). Its county seat is Williamston. It is part of the Northeast Region region, one of the 8 Prosperity Zones of North Carolina. The map shows its 9 cities and towns and the 6 neighboring counties.
Martin County facts
- County seat
- Williamston
- Population (2025 estimate)
- 21,601 −2% since 2020
- Land area
- 456 sq mi 51st largest of 100
- Water area
- 0 sq mi
- Population density
- 47 per sq mi
- Established
- 1774
- Same name
- One of 6 Martin Counties in the US
- Named after
- Josiah Martin governor of North Carolina from 1771 to 1776, and in exile until 1783
- Largest city
- Williamston 5,086
- Median household income
- $48,578
- Cities and towns
- 9
- ZIP codes
- 11
- Time zone
- Eastern
- FIPS code
- 37117
Cities and towns in Martin County
Martin County has 9 incorporated cities, towns and villages. Populations count the people living inside Martin County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Williamston (county seat) | Town | 5,086 | |
| Robersonville | Town | 1,237 | |
| Jamesville | Town | 411 | |
| Hamilton | Town | 297 | |
| Oak City | Town | 266 | |
| Parmele | Town | 246 | |
| Everetts | Town | 144 | |
| Bear Grass | Town | 81 | |
| Hassell | Town | 47 |
ZIP codes in Martin County
11 ZIP codes reach into Martin County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 27812 also Pitt and Edgecombe counties
- 27825
- 27840
- 27841
- 27843 also Edgecombe and Halifax counties
- 27846
- 27857
- 27861
- 27871 also Pitt and Beaufort counties
- 27889 also Beaufort and Pitt counties
- 27892 also Beaufort County
Population of Martin County, 2020–2025
Martin County shrank by 433 people (−2%) between April 2020 and July 2025: 893 more deaths than births and a net gain of 466 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 21,954 |
| 2021 | 21,747 |
| 2022 | 21,493 |
| 2023 | 21,484 |
| 2024 | 21,562 |
| 2025 | 21,601 |
Neighboring counties
- Bertie County northeast · 17,086 people
- Beaufort County southeast · 44,670 people
- Washington County east · 10,638 people
- Pitt County southwest · 182,936 people
- Edgecombe County west · 49,121 people
- Halifax County northwest · 46,534 people
Printable Martin 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) (117 KB)
- PNG (2400 px) (89 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 North Carolina county map with all 100 counties. Found an error? Tell us.