Alameda County CA Information


Alameda County Subdivisions

Alameda County CA Data & Demographics (As of July 1, 2018)


Total Population 1,645,268
Population in Households 1,608,853
Population in Familes 1,279,175
Population in Group Qrtrs 36,415
Population Density1 2,226
Diversity Index2 83


Median Household Income $82,654
Average Household Income $115,785
Per Capita Income $42,122


Total Housing Units 621,643 (100%)
Owner Occupied HU 313,594 (50.4%)
Renter Occupied HU 276,081 (44.4%)
Vacant Housing Units 31,968 ( 5.1%)
Median Home Value $650,784
Average Home Value $740,895


Total Households 589,675
Average Household Size 2.73
Family Households 381,279
Average Family Size 3
  1. Population Density = Total Population per square mile.
  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 race 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.


2010-2017 2017-2022
Population 1.04% 1.03%
Households 0.96% 0.98%
Families 0.96% 0.98%
Median Household Income   3.53%
Per Capita Income   3.13%


Alameda County CA - Peer Comparisons by Rank and Percentile

The table below compares Alameda County to the other 58 counties and county equivalents in California by rank and percentile using July 1, 2018 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 # 7 90th
Population Density # 4 95th
Diversity Index # 11 83rd
Median Household Income # 9 86th
Per Capita Income # 8 88th

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