San Mar
Census-designated place in Washington County, Maryland

San Mar is an unincorporated community (census-designated place) in Washington County, Maryland, with 366 residents (2020 Census). It sits at 545 ft (166 m) above sea level. The nearest town is Mount Lena, 1.0 miles E.
- 366residents (2020 Census)
- 545 ftelevation · 166 m
- 0.5 sq miland area · 1.2 km²
- 785 / sq mipopulation density
- 21713ZIP code
About San Mar
San Mar is a census-designated place (CDP) in Washington County, Maryland, United States. The population was 515 at the 2000 census.
Text: Wikipedia · CC BY-SA 4.0
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Living in San Mar
- Median home value
- $240,500
- Median rent
- $616/mo
- Median age
- 79.4
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Map of San Mar
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Open in Google Maps ›San Mar, MD population
San Mar had 366 residents in the 2020 Census.
| 2020 Census | 366 |
|---|---|
| Density | 785 per sq mi (303 per km²) |
Source: U.S. Census Bureau, Decennial Census.
San Mar at a glance
| State | Maryland (MD) |
|---|---|
| County | Washington County |
| Type | Census-designated place |
| Population | 366 (2020) |
| Land area | 0.47 sq mi (1.2 km²) |
| Elevation | 545 ft (166 m) |
| Coordinates | 39.5522° N, 77.6409° W |
| ZIP code | 21713 |
| Census code (GEOID) | 2470300 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near San Mar
- Mount Lena1.0 mi E
- Mapleville1.2 mi S
- Beaver Creek2.1 mi N
- Bagtown2.6 mi NE
- Boonsboro3.2 mi S
- Mount Aetna3.6 mi NE
- Breathedsville4.5 mi W
- Jugtown5.0 mi NE
- Funkstown5.1 mi NW
- Myersville5.1 mi SE
- Robinwood5.3 mi N
- Keedysville5.5 mi SW
Straight-line distance between town centers.
Frequently asked questions about San Mar
What county is San Mar in?
San Mar is in Washington County, Maryland.
What is the population of San Mar, MD?
366 people lived in San Mar at the 2020 Census.
What is the ZIP code of San Mar, MD?
The ZIP code of San Mar is 21713.
What is the elevation of San Mar?
545 feet (166 m) above sea level.
What towns are near San Mar?
Mount Lena (1.0 mi), Mapleville (1.2 mi), Beaver Creek (2.1 mi), Bagtown (2.6 mi), Boonsboro (3.2 mi).
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