Castle Hill CDP, CA Profile: Facts & Data


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Castle Hill CDP, California - Basic Facts

The Castle Hill Census Designated Place had a population of 1,340 as of July 1, 2020. Castle Hill CDP 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 Castle Hill CDP is located at latitude 37.873 and longitude -122.0573 in Contra Costa County. The formal boundaries for the Castle Hill Census Designated Place encompass a land area of 0.73 sq. miles and a water area of 0 sq. miles.

The Castle Hill Census Designated Place (GNIS ID: 2582967) has a U2 Census Class Code which indicates a census designated place without 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 Castle Hill Census Designated Place is located within Central Contra Costa CCD of Contra Costa County.


Castle Hill CDP, CA Data & Demographics (As of July 1, 2020)


Total Population 1,340 (100%)
Population in Households 1,228 (91.6%)
Population in Families 1,023 (76.3%)
Population in Group Quarters1 112 ( 8.4%)
Population Density 1,843
Diversity Index2 42


Median Household Income $168,597
Average Household Income $209,715
% of Income for Mortgage4 32%
Per Capita Income $79,662
Wealth Index5 376


Total HU (Housing Units) 534 (100%)
Owner Occupied HU 411 (77.0%)
Renter Occupied HU 104 (19.5%)
Vacant Housing Units 19 ( 3.6%)
Median Home Value $1,269,953
Average Home Value $1,318,476
Housing Affordability Index3 84


Total Households 515
Average Household Size 2.38
Family Households 355
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2020 2020-2025
Population 0.3% 0.31%
Households 0.35% 0.35%
Families -0.38% 0.39%
Median Household Income   0.91%
Per Capita Income   1.7%
Owner Occupied HU   0.48%


Castle Hill CDP, CA - Peer Comparisons by Rank and Percentile

The table below compares Castle Hill CDP to the other 1,521 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2020 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 # 972 36th
Population Density # 628 59th
Median Household Income # 55 96th
Housing Affordability Index # 611 40th
Per Capita Income # 84 95th
Diversity Index # 1167 23rd

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

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