Alum Rock, San Jose

The 2010 United States Census[11] reported that Alum Rock had a population of 15,536. The population density was 12,899.0 inhabitants per square mile (4,980.3/km²). The racial makeup of Alum Rock was 6,581 (42.4%) White, 207 (1.3%) African American, 298 (1.9%) Native American, 2,039 (13.1%) Asian, 70 (0.5%) Pacific Islander, 5,466 (35.2%) from other races, and 875 (5.6%) from two or more races. Hispanic or Latino of any race were 10,977 persons (70.7%).

The Census reported that 15,364 people (98.9% of the population) lived in households, 66 (0.4%) lived in non-institutionalized group quarters, and 106 (0.7%) were institutionalized.

There were 3,686 households, out of which 1,895 (51.4%) had children under the age of 18 living in them, 2,064 (56.0%) were opposite-sex married couples living together, 621 (16.8%) had a female householder with no husband present, 335 (9.1%) had a male householder with no wife present. There were 241 (6.5%) unmarried opposite-sex partnerships, and 23 (0.6%) same-sex married couples or partnerships. 444 households (12.0%) were made up of individuals, and 181 (4.9%) had someone living alone who was 65 years of age or older. The average household size was 4.17. There were 3,020 families (81.9% of all households); the average family size was 4.33.

The population was spread out, with 4,383 people (28.2%) under the age of 18, 1,709 people (11.0%) aged 18 to 24, 4,708 people (30.3%) aged 25 to 44, 3,345 people (21.5%) aged 45 to 64, and 1,391 people (9.0%) who were 65 years of age or older. The median age was 31.7 years. For every 100 females, there were 105.9 males. For every 100 females age 18 and over, there were 104.2 males.

There were 3,863 housing units at an average density of 3,207.3 per square mile (1,238.3/km²), of which 2,393 (64.9%) were owner-occupied, and 1,293 (35.1%) were occupied by renters. The homeowner vacancy rate was 1.8%; the rental vacancy rate was 3.2%. 9,541 people (61.4% of the population) lived in owner-occupied housing units and 5,823 people (37.5%) lived in rental housing units.

Mt. St. Joseph Monastery is a Carmelite novitiate.

As of the census[12] of 2000, there were 13,479 people, 3,345 households, and 2,736 families residing in the CDP. The population density was 12,044.7 inhabitants per square mile (4,650.5/km²). There were 3,411 housing units at an average density of 3,048.0 per square mile (1,176.8/km²). The racial makeup of the CDP was 44.14% White, 2.23% African American, 1.71% Native American, 8.70% Asian, 0.39% Pacific Islander, 36.89% from other races, and 5.94% from two or more races. Hispanic or Latino of any race were 66.99% of the population.

There were 3,345 households, out of which 44.5% had children under the age of 18 living with them, 57.4% were married couples living together, 16.2% had a female householder with no husband present, and 18.2% were non-families. 13.0% of all households were made up of individuals, and 6.2% had someone living alone who was 65 years of age or older. The average household size was 3.98 and the average family size was 4.17.

In the CDP, the population was spread out, with 30.6% under the age of 18, 10.7% from 18 to 24, 32.5% from 25 to 44, 17.2% from 45 to 64, and 9.1% who were 65 years of age or older. The median age was 30 years. For every 100 females, there were 105.0 males. For every 100 females age 18 and over, there were 103.0 males.

The median income for a household in the CDP was $54,567, and the median income for a family was $53,872. Males had a median income of $31,485 versus $28,154 for females. The per capita income for the CDP was $15,359. About 8.2% of families and 10.9% of the population were below the poverty line, including 9.6% of those under age 18 and 11.8% of those age 65 or over.