Alum Rock (CDP), California
Alum Rock | |
|---|---|
Location in Santa Clara County and the state of California | |
Alum Rock Location in the United States | |
| Coordinates: 37°22′3″N 121°49′32″W / 37.36750°N 121.82556°W | |
| Country | United States |
| State | California |
| County | Santa Clara |
| Area | |
• Total | 0.87 sq mi (2.25 km2) |
| • Land | 0.87 sq mi (2.25 km2) |
| • Water | 0 sq mi (0.00 km2) |
| Elevation | 164 ft (50 m) |
| Population (2020) | |
• Total | 12,042 |
| • Density | 13,858.4/sq mi (5,350.74/km2) |
| Time zone | UTC-8 (Pacific) |
| • Summer (DST) | UTC-7 (PDT) |
| ZIP code | 95127 |
| Area codes | 408/669 |
| FIPS code | 06-01458 |
| GNIS feature ID | 2407736[2] |
Alum Rock is a census-designated place in Santa Clara County, California.
Demographics
| Census | Pop. | Note | %± |
|---|---|---|---|
| 2000 | 13,479 | — | |
| 2010 | 15,536 | 15.3% | |
| 2020 | 12,042 | −22.5% | |
| U.S. Decennial Census[3] 1850–1870[4][5] 1880-1890[6] 1900[7] 1910[8] 1920[9] 1930[10] 1940[11] 1950[12] 1960[13] 1970[14] 1980[15] 1990[16] 2000[17] 2010[18] | |||
Alum Rock first appeared as a census designated place in the 2000 U.S. census.[17]
The 2020 United States census reported that the CDP had a population of 12,042. The population density was 13,857.3 inhabitants per square mile (5,350.3/km2). The racial makeup of the CDP was 16.7% White, 1.4% African American, 3.4% Native American, 19.0% Asian, 0.3% Pacific Islander, 43.3% from other races, and 15.8% from two or more races. Hispanic or Latino of any race were 67.1% of the population.[19]
The census reported that 98.7% of the population lived in households, 0.4% lived in non-institutionalized group quarters, and 1.0% were institutionalized.[19]
There were 2,922 households, out of which 47.1% included children under the age of 18, 53.1% were married-couple households, 7.2% were cohabiting couple households, 24.0% had a female householder with no partner present, and 15.7% had a male householder with no partner present. 14.1% of households were one person, and 5.8% were one person aged 65 or older. The average household size was 4.07.[19] There were 2,332 families (79.8% of all households).[20]
The age distribution was 23.4% under the age of 18, 10.3% aged 18 to 24, 29.1% aged 25 to 44, 25.5% aged 45 to 64, and 11.7% who were 65 years of age or older. The median age was 35.8 years. For every 100 females, there were 103.8 males.[19]
There were 3,029 housing units at an average density of 3,485.6 units per square mile (1,345.8 units/km2), of which 2,922 (96.5%) were occupied. Of these, 62.0% were owner-occupied, and 38.0% were occupied by renters.[19]
In 2023, the US Census Bureau estimated that 45.3% of the population were foreign-born. Of all people aged 5 or older, 27.3% spoke only English at home, 54.6% spoke Spanish, 1.9% spoke other Indo-European languages, 16.0% spoke Asian or Pacific Islander languages, and 0.2% spoke other languages. Of those aged 25 or older, 66.8% were high school graduates and 19.8% had a bachelor's degree.[21]
The median household income was $111,976, and the per capita income was $34,255. About 5.1% of families and 8.7% of the population were below the poverty line.[22]
Government
In the California State Legislature, Alum Rock is in the 15th senatorial district, represented by Democrat Dave Cortese, and in the 25th Assembly district, represented by Democrat Ash Kalra.[23]
In the United States House of Representatives, Alum Rock is in California's 18th congressional district, represented by Democrat Zoe Lofgren.[24]
Education
Most of Alum Rock CDP is in Alum Rock Union Elementary School District. A small portion is in Mount Pleasant Elementary School District. All of it is in East Side Union High School District.[25]
References
- ^ "2020 U.S. Gazetteer Files". United States Census Bureau. Retrieved October 30, 2021.
- ^ a b U.S. Geological Survey Geographic Names Information System: Alum Rock (CDP), California
- ^ "Decennial Census by Decade". United States Census Bureau.
- ^ "1870 Census of Population - Population of Civil Divisions less than Counties - California - Almeda County to Sutter County" (PDF). United States Census Bureau.
- ^ "1870 Census of Population - Population of Civil Divisions less than Counties - California - Tehama County to Yuba County" (PDF). United States Census Bureau.
- ^ "1890 Census of Population - Population of California by Minor Civil Divisions" (PDF). United States Census Bureau.
- ^ "1900 Census of Population - Population of California by Counties and Minor Civil Divisions" (PDF). United States Census Bureau.
- ^ "1910 Census of Population - Supplement for California" (PDF). United States Census Bureau.
- ^ "1920 Census of Population - Number of Inhabitants - California" (PDF). United States Census Bureau.
- ^ "1930 Census of Population - Number and Distribution of Inhabitants - California" (PDF). United States Census Bureau.
- ^ "1940 Census of Population - Number of Inhabitants - California" (PDF). United States Census Bureau.
- ^ "1950 Census of Population - Number of Inhabitants - California" (PDF). United States Census Bureau.
- ^ "1960 Census of Population - General population Characteristics - California" (PDF). United States Census Bureau.
- ^ "1970 Census of Population - Number of Inhabitants - California" (PDF). United States Census Bureau.
- ^ "1980 Census of Population - Number of Inhabitants - California" (PDF). United States Census Bureau.
- ^ "1990 Census of Population - Population and Housing Unit Counts - California" (PDF). United States Census Bureau.
- ^ a b "2000 Census of Population - Population and Housing Unit Counts - California" (PDF). United States Census Bureau.
- ^ "2010 Census of Population - Population and Housing Unit Counts - California" (PDF). United States Census Bureau.
- ^ a b c d e "Alum Rock CDP, California; DP1: Profile of General Population and Housing Characteristics - 2020 Census of Population and Housing". US Census Bureau. Retrieved March 31, 2025.
- ^ "Alum Rock CDP, California; P16: Household Type - 2020 Census of Population and Housing". US Census Bureau. Retrieved March 31, 2025.
- ^ "Alum Rock CDP, California; CP02: Comparative Social Characteristics in the United States - 2023 ACS 5-Year Estimates Comparison Profiles". US Census Bureau. Retrieved March 31, 2025.
- ^ "Alum Rock CDP, California; DP03: Selected Economic Characteristics - 2023 ACS 5-Year Estimates Comparison Profiles". US Census Bureau. Retrieved March 31, 2025.
- ^ "Find Your California Representatives". Retrieved July 16, 2025.
- ^ "California's 18th Congressional District - Representatives & District Map". Civic Impulse, LLC.
- ^ Geography Division (January 6, 2021). 2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Santa Clara County, CA (PDF) (Map). U.S. Census Bureau. p. 1 (PDF p. 2/5). Retrieved July 20, 2022. - Text list