Alameda, CA Profile: Facts & Data


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Alameda, California - Basic Facts

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The City of Alameda had a population of 78,047 as of July 1, 2021. Alameda ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for Alameda is located at latitude 37.7652 and longitude -122.2416 in Alameda County. The formal boundaries for the City of Alameda encompass a land area of 10.44 sq. miles and a water area of 12.66 sq. miles. Alameda County is in the Pacific time zone (GMT -8). The elevation is 33 feet.

The City of Alameda has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Alameda is located within Alameda CCD of Alameda County.

Jump to... (On This Page!)
  1. Alameda 2021 Demographic Data
  2. Growth Rates for Alameda (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. California Research Tools (Easy Tools & Current Data)
  3. California Data Comparison Tool - 2021 Demographics

Alameda, CA Data & Demographics (As of July 1, 2021)


Total Population 78,047 (100%)
Population in Households 76,553 (98.1%)
Population in Families 59,242 (75.9%)
Population in Group Quarters1 1,494 ( 1.9%)
Population Density 7,470
Diversity Index2 72


Median Household Income $108,694
Average Household Income $145,349
% of Income for Mortgage4 38%
Per Capita Income $58,760
Wealth Index5 160


Total HU (Housing Units) 33,303 (100%)
Owner Occupied HU 15,352 (46.1%)
Renter Occupied HU 16,114 (48.4%)
Vacant Housing Units 1,837 ( 5.5%)
Median Home Value $981,148
Average Home Value $1,064,627
Housing Affordability Index3 63


Total Households 31,466
Average Household Size 2.43
Family Households 19,114
Average Family Size 3
  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.


2010-2021 2021-2026
Population 0.5% 1.25%
Households 0.39% 1.05%
Families 0.39% 1.24%
Median Household Income   2.36%
Per Capita Income   2.3%
Owner Occupied HU   0.66%

Alameda, CA - Peer Comparisons by Rank and Percentile

The table below compares Alameda to the other 1,521 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2021 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 # 115 93rd
Population Density # 118 92nd
Median Household Income # 215 86th
Housing Affordability Index # 413 27th
Per Capita Income # 192 87th
Diversity Index # 623 59th

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

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