Diablo, CA Profile: Facts, Map & Data


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

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

Diablo, California - Basic Facts

The Diablo Census Designated Place had a population of 1,196 as of July 1, 2018. Diablo ranks in the lower quartile for 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 Diablo is located at latitude 37.8408 and longitude -121.9565 in Contra Costa County. The formal boundaries for the Diablo Census Designated Place (see map below) encompass a land area of 1.36 sq. miles and a water area of 0 sq. miles. Contra Costa County is in the Pacific time zone (GMT -8). The elevation is 528 feet.

The Diablo Census Designated Place (GNIS ID: 2408668) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Diablo Census Designated Place is located within Central Contra Costa CCD of Contra Costa County.

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

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.


Diablo Census Designated Place, CA Boundary Map

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

Search the map for:

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


Total Population 1,196
Population in Households 1,191
Population in Familes 1,096
Population in Group Qrtrs 5
Population Density2 881
Diversity Index3 31


Median Household Income $161,167
Average Household Income $239,854
Per Capita Income $87,668


Total Housing Units 441 (100%)
Owner Occupied HU 388 (88.0%)
Renter Occupied HU 32 ( 7.3%)
Vacant Housing Units 20 ( 4.5%)
Median Home Value $1,320,809
Average Home Value $1,372,036


Total Households 421
Average Household Size 2.83
Family Households 353
Average Family Size 3
  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 0.39% 0.51%
Households 0.26% 0.42%
Families 0.35% 0.39%
Median Household Income   2.77%
Per Capita Income   2.19%

Diablo, CA - Peer Comparisons by Rank and Percentile

The table below compares Diablo 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 # 1010 33rd
Population Density # 804 47th
Diversity Index # 1377 9th
Median Household Income # 36 98th
Per Capita Income # 30 98th

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: