Antioch, CA 94509 ZIP Code Profile

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Antioch, CA

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ZIP Code 94509: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Antioch, CA 94509

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 1,479
  • Single Family Addresses: 18,130
  • Multi-Family Addresses: 4,604
  • County: Contra Costa County
  • Centroid: Latitude 37.995, Longitude -121.804
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

Neighborhood 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 certain data.


94509 ZIP Code Map

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Antioch, CA 94509 Data & Demographics (As of July 1, 2016)


Total Population 65,308
Population in Households 64,761
Population in Familes 54,178
Population in Group Qrtrs 547
Population Density1 2,838
Diversity Index2 84


Total Households 21,417
Average Household Size 3.02
Family Households 15,679
Average Family Size 3


Total Housing Units 23,162 (100%)
Owner Occupied HU 11,779 (50.9%)
Renter Occupied HU 9,638 (41.6%)
Vacant Housing Units 1,745 ( 7.5%)
Median Home Value $258,978
Average Home Value $319,709


Median Household Income $53,264
Average Household Income $69,203
Per Capita Income $23,054
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.75% 0.92%
Households 0.51% 0.79%
Families 0.53% 0.8%
Median Household Income   1.24%
Per Capita Income   1.44%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Antioch, CA 94509 - Peer Comparisons by Rank and Percentile

The table below compares 94509 to the other 1,756 ZIP Codes in California by rank and percentile using July 1, 2016 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 # 79 96th
Population Density1 # 621 65th
Diversity Index2 # 297 83rd
Median Household Income # 1010 43rd
Per Capita Income # 1191 32nd

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