Montgomery County, Virginia
County seat: Christiansburg · Population 98,434 (2025) · 387 sq mi
Montgomery County is the 21st most populous of Virginia's 133 counties, with 98,434 people (2025 estimate). Its county seat is Christiansburg. It is part of the New River Valley Regional Commission (PD 4) region, one of the 21 Planning District Commissions of Virginia. The map shows its 2 cities and towns and the 6 neighboring counties.
Montgomery County facts
- County seat
- Christiansburg
- Population (2025 estimate)
- 98,434 −1.3% since 2020
- Land area
- 387 sq mi 48th largest of 133
- Water area
- 2 sq mi
- Population density
- 255 per sq mi
- Same name
- One of 18 Montgomery Counties in the US
- Named after
- Richard Montgomery Irish-born soldier in the British Army, later in the American Continental Army (1738–1775)
- Largest city
- Blacksburg 45,104
- Median household income
- $72,715
- Cities and towns
- 2 plus 8 CDPs
- ZIP codes
- 11
- Time zone
- Eastern
- FIPS code
- 51121
Cities and towns in Montgomery County
Montgomery County has 2 incorporated cities, towns and villages. Populations count the people living inside Montgomery County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Blacksburg | Town | 45,104 | |
| Christiansburg (county seat) | Town | 22,442 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Merrimac | 2,733 | |
| Shawsville | 1,411 | |
| Plum Creek | 1,068 | |
| Riner | 1,038 | |
| Belview | 990 | |
| Elliston | 952 | |
| Prices Fork | 900 | |
| Lafayette | 628 |
ZIP codes in Montgomery County
11 ZIP codes reach into Montgomery County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 24059 also Roanoke and Franklin counties
- 24060
- 24061
- 24070 also Roanoke and Craig counties
- 24073
- 24087 also Roanoke County
- 24138 also Floyd County
- 24141 also Pulaski County, Radford city and Floyd County
- 24149 also Floyd County
- 24162 also Floyd County
- 24347 also Pulaski and Carroll counties
Population of Montgomery County, 2020–2025
Montgomery County shrank by 1,288 people (−1.3%) between April 2020 and July 2025: 402 more deaths than births and a net loss of 898 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 99,593 |
| 2021 | 98,769 |
| 2022 | 98,746 |
| 2023 | 98,606 |
| 2024 | 98,357 |
| 2025 | 98,434 |
Neighboring counties
- Floyd County south · 15,789 people
- Pulaski County southwest · 33,586 people
- Roanoke County northeast · 97,150 people
- Radford city west · 17,243 people
- Giles County northwest · 16,564 people
- Craig County north · 4,800 people
Printable Montgomery 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) (126 KB)
- PNG (2400 px) (106 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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