Diablo, CA 94528 ZIP Code Profile

Related Place Profiles:
Diablo, CA

ZIP Code 94528: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Diablo, CA 94528

  • ZIP Code Type: PO BOX
  • County: Contra Costa County
  • Centroid: Latitude 37.838, Longitude -121.954
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes
  • Businesses Addresses: 54
  • PO Box Addresses: 512
  • Residential Addresses: 1
    • Multi-Family Addresses: 0
    • Single Family Addresses: 1

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2019, Maps updated: February 1, 2019.

Jump to... (On This Page!)
  1. 94528 2018 Demographic Data
  2. Growth Rates for 94528 (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 - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Diablo, CA 94528 Data & Demographics (As of July 1, 2018)


Total Population 972
Population in Households 972
Population in Familes 898
Population in Group Qrtrs 0
Population Density2 873
Diversity Index3 28


Median Household Income $159,694
Average Household Income $238,237
Per Capita Income $89,707


Total Housing Units 388 (100%)
Owner Occupied HU 338 (87.1%)
Renter Occupied HU 28 ( 7.2%)
Vacant Housing Units 22 ( 5.7%)
Median Home Value $1,323,129
Average Home Value $1,371,228


Total Households 366
Average Household Size 2.66
Family Households 307
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 0.34% 0.49%
Households 0.23% 0.38%
Families 0.24% 0.45%
Median Household Income   2.88%
Per Capita Income   2.2%

Diablo, CA 94528 - Peer Comparisons by Rank and Percentile

The table below compares 94528 to the other 1,763 ZIP Codes 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 # 1417 20th
Population Density # 845 52nd
Diversity Index # 1676 5th
Median Household Income # 29 98th
Per Capita Income # 30 98th

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

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