Alto
Census-designated place in Marin County, California

Alto is an unincorporated community (census-designated place) in Marin County, California, with 732 residents (2020 Census). It sits at 26 ft (8 m) above sea level. The nearest town is Strawberry, 1.1 miles SE.
- 732residents (2020 Census)
- 26 ftelevation · 8 m
- 0.1 sq miland area · 0.3 km²
- 5,816 / sq mipopulation density
- 94925ZIP code
About Alto
Alto (Spanish for "Tall") is a census-designated place adjacent to Mill Valley, California, United States, located in Marin County. It lies at an elevation of 26 feet (8 m). The population was 732 at the 2020 census.
Text: Wikipedia · CC BY-SA 4.0
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- Median household income
- $129,191
- Median age
- 42.3
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Map of Alto
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Open in Google Maps ›Alto, CA population
Alto had 732 residents in the 2020 Census.
| 2020 Census | 732 |
|---|---|
| Density | 5,816 per sq mi (2,245 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Alto at a glance
| State | California (CA) |
|---|---|
| County | Marin County |
| Type | Census-designated place |
| Population | 732 (2020) |
| Land area | 0.13 sq mi (0.3 km²) |
| Elevation | 26 ft (8 m) |
| Coordinates | 37.9056° N, 122.5187° W |
| ZIP code | 94925 |
| Census code (GEOID) | 0601416 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Alto
- Strawberry1.1 mi SE
- Mill Valley1.3 mi W
- Corte Madera1.9 mi N
- Tamalpais-Homestead Valley2.1 mi SW
- Marin City2.4 mi S
- Larkspur2.5 mi N
- Kentfield3.0 mi NW
- Belvedere3.3 mi SE
- Tiburon3.3 mi SE
- Sausalito3.6 mi SE
- Muir Beach4.5 mi SW
- Ross4.7 mi NW
Straight-line distance between town centers.
Frequently asked questions about Alto
What county is Alto in?
Alto is in Marin County, California.
What is the population of Alto, CA?
732 people lived in Alto at the 2020 Census.
What is the ZIP code of Alto, CA?
The ZIP code of Alto is 94925.
What is the elevation of Alto?
26 feet (8 m) above sea level.
What towns are near Alto?
Strawberry (1.1 mi), Mill Valley (1.3 mi), Corte Madera (1.9 mi), Tamalpais-Homestead Valley (2.1 mi), Marin City (2.4 mi).
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