Alum Rock, CA Profile: Facts & Data

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Alum Rock, California - Basic Facts

The Alum Rock Census Designated Place had a population of 11,054 as of July 1, 2020. Alum Rock ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for Alum Rock is located at latitude 37.3661 and longitude -121.8272 in Santa Clara County. The formal boundaries for the Alum Rock Census Designated Place encompass a land area of 0.85 sq. miles and a water area of 0 sq. miles. Santa Clara County is in the Pacific time zone (GMT -8). The elevation is 151 feet.

The Alum Rock Census Designated Place (GNIS ID: 2407736) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Alum Rock Census Designated Place is located within San Jose CCD of Santa Clara County.


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Alum Rock, CA Data & Demographics (As of July 1, 2020)

POPULATION

Total Population 11,054 (100%)
Population in Households 10,698 (96.8%)
Population in Families 9,174 (83.0%)
Population in Group Quarters1 356 ( 3.2%)
Population Density 13,125
Diversity Index2 90
 
 

INCOME

Median Household Income $77,613
Average Household Income $101,706
% of Income for Mortgage4 42%
Per Capita Income $24,014
Wealth Index5 94
 

HOUSING

Total HU (Housing Units) 2,741 (100%)
Owner Occupied HU 1,543 (56.3%)
Renter Occupied HU 1,070 (39.0%)
Vacant Housing Units 129 ( 4.7%)
Median Home Value $782,947
Average Home Value $794,468
Housing Affordability Index3 60
 

HOUSEHOLDS

Total Households 2,612
Average Household Size 4.1
Family Households 2,143
Average Family Size 4
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.

GROWTH RATE / YEAR

2010-2020 2020-2025
Population 0.23% 0.14%
Households 0.13% 0.08%
Families 0.14% 0.1%
Median Household Income   1.84%
Per Capita Income   2.44%
Owner Occupied HU   0.6%

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Alum Rock, CA - Peer Comparisons by Rank and Percentile

The table below compares Alum Rock to the other 1,521 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2020 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 470 69th
Population Density # 27 98th
Median Household Income # 541 64th
Housing Affordability Index # 286 19th
Per Capita Income # 1118 27th
Diversity Index # 35 98th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

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