Smyth County, Virginia
County seat: Marion · Population 28,882 (2025) · 451 sq mi
Smyth County is the 65th most populous of Virginia's 133 counties, with 28,882 people (2025 estimate). Its county seat is Marion. It is part of the Mount Rogers Planning District Commission (PD 3) region, one of the 21 Planning District Commissions of Virginia. The map shows its 3 cities and towns and the 6 neighboring counties.
Smyth County facts
- County seat
- Marion
- Population (2025 estimate)
- 28,882 −3.1% since 2020
- Land area
- 451 sq mi 35th largest of 133
- Water area
- 1 sq mi
- Population density
- 64 per sq mi
- Established
- 1832
- Named after
- Alexander Smyth United States Army general (1765-1830)
- Largest city
- Marion 5,555
- Median household income
- $49,883
- Cities and towns
- 3 plus 6 CDPs
- ZIP codes
- 10
- Time zone
- Eastern
- FIPS code
- 51173
Cities and towns in Smyth County
Smyth County has 3 incorporated cities, towns and villages. Populations count the people living inside Smyth County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Marion (county seat) | Town | 5,555 | |
| Saltville | Town | 1,600 | Washington County |
| Chilhowie | Town | 1,599 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Adwolf | 1,046 | |
| Atkins | 985 | |
| Seven Mile Ford | 644 | |
| Sugar Grove | 563 | |
| Allison Gap | 526 | |
| McMullin | 324 |
ZIP codes in Smyth County
10 ZIP codes reach into Smyth County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 24236 also Washington County
- 24311
- 24316 also Tazewell County
- 24318 also Bland County
- 24319 also Washington County
- 24354
- 24368 also Wythe County
- 24370 also Washington County
- 24375
- 24378 also Grayson County
Population of Smyth County, 2020–2025
Smyth County shrank by 912 people (−3.1%) between April 2020 and July 2025: 1,508 more deaths than births and a net gain of 584 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 29,780 |
| 2021 | 29,610 |
| 2022 | 29,398 |
| 2023 | 29,166 |
| 2024 | 29,133 |
| 2025 | 28,882 |
Neighboring counties
- Tazewell County north · 38,635 people
- Washington County west · 53,898 people
- Grayson County southeast · 15,230 people
- Wythe County east · 27,983 people
- Bland County northeast · 6,151 people
- Russell County west · 25,332 people
Printable Smyth 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) (113 KB)
- PNG (2400 px) (87 KB)
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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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