Antioch, CA Profile: Facts, Map & Data


Antioch Local Links & Resources:
Hotels | Resources | ALL Antioch Content

Also See: Antioch, CA ZIP Codes & ZIP Code Maps | Local Area Photos

Antioch, California - Basic Facts

The City of Antioch had a population of 110,703 as of July 1, 2018. Antioch 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 Antioch is located at latitude 37.9775 and longitude -121.7976 in Contra Costa County. The formal boundaries for the City of Antioch (see map below) encompass a land area of 28.33 sq. miles and a water area of 0.7 sq. miles. Contra Costa County is in the Pacific time zone (GMT -8). The elevation is 43 feet.

The City of Antioch (GNIS ID: 2409715) 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 Antioch is located within Antioch-Pittsburg CCD of Contra Costa County.

Beneath the boundary map are tables with Antioch population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

Alternate Unofficial Names for Antioch: East Antioch, Marshs Landing, Smith's Landing.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


City of Antioch, CA Boundary Map

Also See: BIG Map | Driving Directions | CA Congressional Districts
Boundary Maps: Antioch-Pittsburg CCD | Contra Costa County | California Counties

Search the map for:

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


Total Population 110,703
Population in Households 110,028
Population in Familes 95,599
Population in Group Qrtrs 675
Population Density2 3,908
Diversity Index3 86


Median Household Income $72,984
Average Household Income $95,534
Per Capita Income $30,081


Total Housing Units 36,160 (100%)
Owner Occupied HU 21,813 (60.3%)
Renter Occupied HU 12,581 (34.8%)
Vacant Housing Units 1,766 ( 4.9%)
Median Home Value $384,652
Average Home Value $445,786


Total Households 34,394
Average Household Size 3.2
Family Households 26,666
Average Family Size 4
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 0.95% 1.01%
Households 0.78% 0.9%
Families 0.77% 0.92%
Median Household Income   3.13%
Per Capita Income   3.75%

Antioch, CA - Peer Comparisons by Rank and Percentile

The table below compares Antioch to the other 1,516 incorporated cities, towns and CDPs 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 # 64 96th
Population Density # 330 78th
Diversity Index # 137 91st
Median Household Income # 487 68th
Per Capita Income # 775 49th

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

California Research Tools

California Census Data Comparison Tool

Compare California Census Data
Highest or Lowest: