Alta, California
| Alta, California | |
|---|---|
| Census-designated place | |
 Alta, California
|
|
| Coordinates: 39°12′24″N 120°48′41″W / 39.20667°N 120.81139°WCoordinates: 39°12′24″N 120°48′41″W / 39.20667°N 120.81139°W | |
| Country |
 United States
|
| State |
 California
|
| County | Placer |
| Area | |
| • Total | 2.391 sq mi (6.191 km2) |
| • Land | 2.384 sq mi (6.174 km2) |
| • Water | 0.007 sq mi (0.017 km2) 0.28% |
| Elevation | 3,743 ft (1,141 m) |
| Population (2010) | |
| • Total | 610 |
| • Density | 260/sq mi (99/km2) |
| Time zone | Pacific (PST) (UTC-8) |
| • Summer (DST) | PDT (UTC-7) |
| ZIP Code | 95701 |
| Area code | 530 |
| FIPS code | 06-01276 |
| GNIS feature ID | 2628704 |
Alta is a small unincorporated community and census-designated place (CDP) in Placer County, California, United States, about 30 miles (48 km) northeast of Auburn. The village is located off Interstate 80 and along the historical First Transcontinental Railroad. The ZIP code is 95701 and the area code 530. One of the few buildings other than private residences is the Alta-Dutch Flat Grammar School serving kindergarten through eighth grade students. The high school that serves Alta is Colfax high School. Colfax High School is 11 miles southwest in the incorporated town of Colfax. The population of Alta was 610 at the 2010 census.
A historical California place once named Alta was located in San Diego County near the present-day La Mesa-El Cajon boundary. This historical place was along the San Diego and Arizona Eastern Railway, now the San Diego Trolley Orange Line, at its Murray Drive undercrossing in La Mesa. The community was named after the Spanish word meaning "upper" or "high".
According to the United States Census Bureau, the CDP covers an area of 2.4 square miles (6.2 km²), 99.72% of it land, and 0.28% of it water.
Alta has a hot-summer Mediterranean climate (Köppen climate classification Csa) that is characterized by cool, wet winters and hot, dry summers (Köppen climate classification Csa).
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