Alta, California

Geography

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.

Climate

Blue Canyon–Nyack Airport has a warm-summer Mediterranean climate (Csb) according to the Köppen climate classification system. Summers are generally warm with cool nights, while winters are moderately cold and extremely snowy, despite no month having an average low temperature below freezing.

|Jan record high F = 76 |Feb record high F = 73 |Mar record high F = 72 |Apr record high F = 82 |May record high F = 88 |Jun record high F = 92 |Jul record high F = 95 |Aug record high F = 97 |Sep record high F = 96 |Oct record high F = 88 |Nov record high F = 78 |Dec record high F = 75 |year record high F =

|Jan avg record high F = 63.1 |Feb avg record high F = 60.7 |Mar avg record high F = 63.1 |Apr avg record high F = 71.4 |May avg record high F = 76.3 |Jun avg record high F = 85.2 |Jul avg record high F = 87.3 |Aug avg record high F = 86.6 |Sep avg record high F = 85.3 |Oct avg record high F = 76.5 |Nov avg record high F = 69.5 |Dec avg record high F = 61.1 |year avg record high F = 89.5

|Jan avg record low F = 21.6 |Feb avg record low F = 19.9 |Mar avg record low F = 23.0 |Apr avg record low F = 24.9 |May avg record low F = 31.6 |Jun avg record low F = 38.5 |Jul avg record low F = 53.9 |Aug avg record low F = 52.9 |Sep avg record low F = 41.2 |Oct avg record low F = 33.0 |Nov avg record low F = 25.8 |Dec avg record low F = 20.3 |year avg record low F = 16.5

|Jan record low F = 5 |Feb record low F = 6 |Mar record low F = 9 |Apr record low F = 17 |May record low F = 21 |Jun record low F = 28 |Jul record low F = 36 |Aug record low F = 35 |Sep record low F = 27 |Oct record low F = 17 |Nov record low F = 13 |Dec record low F = 3 |year record low F =

|access-date=June 2, 2022 |access-date = September 7, 2022 |access-date=November 29, 2015

Demographics

|align-fn=center 1850–1870 1880-1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010

Alta first appeared as a census designated place in the 2010 U.S. census.

The 2020 United States census reported that Alta had a population of 615. The population density was 258.0 PD/sqmi. The racial makeup of Alta was 86.8% White, 0.2% African American, 2.8% Native American, 0.8% Asian, 0.0% Pacific Islander, 1.1% from other races, and 8.3% from two or more races. Hispanic or Latino of any race were 6.3% of the population.

The whole population lived in households.

There were 248 households, out of which 22.2% included children under the age of 18, 54.8% were married-couple households, 3.6% were cohabiting couple households, 9.7% had a female householder with no partner present, and 31.9% had a male householder with no partner present. 27.0% of households were one person, and 14.9% were one person aged 65 or older. The average household size was 2.48. There were 164 families (66.1% of all households).

The age distribution was 19.2% under the age of 18, 4.9% aged 18 to 24, 22.0% aged 25 to 44, 28.8% aged 45 to 64, and 25.2% who were 65years of age or older. The median age was 50.2years. For every 100 females, there were 108.5 males.

There were 308 housing units at an average density of 129.2 /mi2, of which 248 (80.5%) were occupied. Of these, 77.0% were owner-occupied, and 23.0% were occupied by renters.

References

References

1. "2020 U.S. Gazetteer Files". United States Census Bureau.
2. {{GNIS. 2628704
3. {{Cite GNIS. 1666231. Alta (historical), San Diego County, California. December 2, 2007
4. (November 30, 1998). "1500 California place names: their origin and meaning". University of California Press.
5. "Decennial Census by Decade".
6. "1870 Census of Population - Population of Civil Divisions less than Counties - California - Almeda County to Sutter County".
7. "1870 Census of Population - Population of Civil Divisions less than Counties - California - Tehama County to Yuba County".
8. "1890 Census of Population - Population of California by Minor Civil Divisions".
9. "1900 Census of Population - Population of California by Counties and Minor Civil Divisions".
10. "1910 Census of Population - Supplement for California".
11. "1920 Census of Population - Number of Inhabitants - California".
12. "1930 Census of Population - Number and Distribution of Inhabitants - California".
13. "1940 Census of Population - Number of Inhabitants - California".
14. "1950 Census of Population - Number of Inhabitants - California".
15. "1960 Census of Population - General population Characteristics - California".
16. "1970 Census of Population - Number of Inhabitants - California".
17. "1980 Census of Population - Number of Inhabitants - California".
18. "1990 Census of Population - Population and Housing Unit Counts - California".
19. "2000 Census of Population - Population and Housing Unit Counts - California".
20. "2010 Census of Population - Population and Housing Unit Counts - California".
21. "Alta CDP, California; DP1: Profile of General Population and Housing Characteristics - 2020 Census of Population and Housing".
22. "Alta CDP, California; P16: Household Type - 2020 Census of Population and Housing".