Castle Hill, California
{{Use mdy dates|date=July 2023}}
{{Infobox settlement
|official_name = Castle Hill
|settlement_type = census-designated place
|image_skyline =
|imagesize =
|image_caption =
|subdivision_type = Country
|subdivision_name = {{USA}}
|subdivision_type1 = State
|subdivision_name1 = {{flag|California}}
|subdivision_type2 = County
|subdivision_name2 = Contra Costa
|established_title =
|established_date =
| population_total = 1271
| population_as_of = 2020
| population_density_km2 = 839.56
| unit_pref = Imperial
|area_magnitude =
| area_total_sq_mi = 0.58
| area_land_sq_mi = 0.58
| area_water_sq_mi = 0.00
| area_total_km2 = 1.51
| area_land_km2 = 1.51
| area_water_km2 = 0.00
| area_water_percent = 0
| area_note =
|timezone = Pacific (PST)
|utc_offset = -8
|timezone_DST = PDT
|utc_offset_DST = -7
|elevation_footnotes = {{Cite GNIS|2582967|Castle Hill Census Designated Place}}
|elevation_ft = 302
| pushpin_map = California
| pushpin_map_caption = Position in California.
|coordinates = {{coord|37|52|23|N|122|03|26|W|display=inline,title}}
|postal_code_type = ZIP Code
|postal_code =
|area_code =
|blank_name = FIPS code
|blank_info = {{FIPS|06|11915}}
|blank1_name = GNIS feature ID
|blank1_info = {{GNIS 4|2582967}}
|website =
|footnotes = {{gnis|2582967}}
|pop_est_as_of =
|pop_est_footnotes =
|population_est =
|population_footnotes =
|population_density_sq_mi = 2172.65
}}
Castle Hill is a census-designated place{{Cite GNIS|2582967|Castle Hill Census Designated Place}} in Contra Costa County, California. Castle Hill sits at an elevation of {{Convert|302|ft}}. The 2020 United States census reported Castle Hill's population was 1,271.
History
The surrounding area was once inhabited by the Saklans. A Saklan village, which was possibly occupied from 1500 until 1772, is located near the mouth of Tice Creek. It contains multiple bedrock mortars used for processing acorns and other foodstuffs as well as a small spring. Its location along is not far from its confluence with the much larger Las Trampas Creek would have been advantageous to the Saklans who inhabited it. A small plaque marks the site which sits next to the bus stop at Tice Valley Boulevard and Montecillo Drive. [https://www.google.com/maps/@37.8747409,-122.0651029,3a,75y,240.11h,78.78t/data=!3m6!1e1!3m4!1sJB6xDhvBtEtJhDEqYO4jsA!2e0!7i16384!8i8192?entry=ttu "2200 Tice Valley Blvd" Google Maps] Retrieved December 16, 2023
Geography
According to the United States Census Bureau, the CDP has a total area of 0.585 square miles (1.515 km{{sup|2}}), all of it land.
Demographics
{{US Census population
|2010= 1299
|2020= 1271
|align-fn=center
|footnote=U.S. Decennial Census{{cite web|url=https://www.census.gov/programs-surveys/decennial-census/decade.html|title=Decennial Census by Decade|website=United States Census Bureau|access-date=}}
2010{{Cite web|title= 2010 Census of Population - Population and Housing Unit Counts - California |url=https://www2.census.gov/library/publications/decennial/2010/cph-2/cph-2-6.pdf|website=United States Census Bureau}}
}}
Castle Hill first appeared as a census designated place in the 2010 U.S. Census formed from part of Alamo CDP.
The 2020 United States census reported that Castle Hill had a population of 1,271. The population density was {{convert|2,172.6|PD/sqmi|PD/km2|sp=us|adj=off}}. The racial makeup of Castle Hill was 73.8% White, 0.7% African American, 0.2% Native American, 11.7% Asian, 0.6% Pacific Islander, 2.2% from other races, and 10.8% from two or more races. Hispanic or Latino of any race were 7.2% of the population.
The census reported that 99.1% of the population lived in households, no one lived in non-institutionalized group quarters, and 0.9% were institutionalized.
There were 455 households, out of which 32.5% included children under the age of 18, 70.1% were married-couple households, 4.0% were cohabiting couple households, 16.7% had a female householder with no partner present, and 9.2% had a male householder with no partner present. 15.8% of households were one person, and 9.9% were one person aged 65 or older. The average household size was 2.77. There were 365 families (80.2% of all households).
The age distribution was 21.7% under the age of 18, 4.2% aged 18 to 24, 16.8% aged 25 to 44, 29.8% aged 45 to 64, and 27.4% who were 65{{nbsp}}years of age or older. The median age was 49.7{{nbsp}}years. For every 100 females, there were 93.5 males.
There were 479 housing units at an average density of {{convert|818.8|/mi2|/km2|disp=preunit|units |units|}}, of which 455 (95.0%) were occupied. Of these, 91.9% were owner-occupied, and 8.1% were occupied by renters.{{cite web |title=Castle Hill CDP, California; DP1: Profile of General Population and Housing Characteristics - 2020 Census of Population and Housing |url=https://data.census.gov/table/DECENNIALDP2020.DP1?g=1600000US0611915 |website=US Census Bureau |access-date=March 26, 2025}}{{cite web |title=Castle Hill CDP, California; P16: Household Type - 2020 Census of Population and Housing |url=https://data.census.gov/table/DECENNIALDHC2020.P16?g=1600000US0611915 |website=US Census Bureau |access-date=March 26, 2025}}
Education
Castle Hill is in the Walnut Creek Elementary School District and the Acalanes Union High School District.{{cite web|url=https://www2.census.gov/geo/maps/DC2020/PL20/st06_ca/schooldistrict_maps/c06013_contra_costa/DC20SD_C06013.pdf|title=2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Contra Costa County, CA|publisher=U.S. Census Bureau|accessdate=2022-12-25}}
References
{{reflist}}
{{Contra Costa County, California}}
{{SF Bay Area}}
{{authority control}}
Category:Census-designated places in Contra Costa County, California