Clayton, CA Profile: Facts, Map & Data


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

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

Clayton, California - Basic Facts

The City of Clayton had a population of 11,609 as of July 1, 2017.

The primary coordinate point for Clayton is located at latitude 37.9403 and longitude -121.9301 in Contra Costa County. The formal boundaries for the City of Clayton (see map below) encompass a land area of 3.84 sq. miles and a water area of 0 sq. miles. Contra Costa County is in the Pacific time zone (GMT -8). The elevation is 394 feet.

The City of Clayton (GNIS ID: 2409474) 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 Clayton is located within Central Contra Costa CCD of Contra Costa County.

Beneath the boundary map are tables with Clayton population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Clayton: Clayton's, Claytonville, Deadfall.

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 Clayton, 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:

Clayton, CA Data & Demographics (As of July 1, 2017)


Total Population 11,609
Daytime Population: Workers 1,674
Daytime Population: Residents 6,161
Total Daytime Population (TDP) 7,835
Ratio TDP/Total Population1 0.67
Population in Households 11,599
Population in Familes 10,296
Population in Group Qrtrs 10
Population Density2 3,023
Diversity Index3 45


Median Household Income $140,050
Average Household Income $172,274
Per Capita Income $63,718


Total Housing Units 4,344 (100%)
Owner Occupied HU 3,769 (86.8%)
Renter Occupied HU 496 (11.4%)
Vacant Housing Units 79 ( 1.8%)
Median Home Value $667,998
Average Home Value $708,888


Total Households 4,265
Average Household Size 2.72
Family Households 3,344
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 0.64% 0.71%
Households 0.49% 0.61%
Families 0.38% 0.61%
Median Household Income   1.15%
Per Capita Income   1.64%

Clayton, CA - Peer Comparisons by Rank and Percentile

The table below compares Clayton to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2017 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 # 457 70th
Population Density # 455 70th
Diversity Index # 1090 28th
Median Household Income # 49 97th
Per Capita Income # 108 93rd

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: