Browse / United States / California / Castle Hill
Castle Hill
CaliforniaCDP
Total population
1,026
Median home value
$2,000,001
Bachelor's+
Median income
$250,001
Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.
- Heat Advisory · ModerateHeat Advisory issued October 1 at 9:43AM PDT until October 4 at 10:00PM PDT by NWS San Francisco CA
Source: NOAA National Weather Service.
City facts
Facts from Wikidata (CC0).
Overview
Castle Hill is a census-designated place in Contra Costa County, California, United States. Castle Hill sits at an elevation of 302 feet (92 m). The 2020 United States census reported Castle Hill's population was 1,271.
Read more on WikipediaHistory & geography
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.
Geography
According to the United States Census Bureau, the CDP has a total area of 0.585 square mile (1.515 km), all land.
Excerpted from the corresponding Wikipedia article (CC BY-SA).
Demographics & economy
Race & ethnicity
Source: US Census Bureau — American Community Survey, 5-year estimates.
Geography
Coordinates & boundaries from the US Census TIGER/Line shapefiles.
Climate
10-year averages from ERA5 reanalysis (Open-Meteo).
Current forecast
Forecast for Castle Hill, CA from NOAA NWS API.
Air quality
Industrial & pollution facilities
Natural hazard risk
Health (adults)
Age-adjusted prevalence estimates from CDC PLACES (latest release).
Walkability
Amenities nearby
Wildlife & biodiversity
Schools
Largest nearby schools
- Clayton Valley Charter HighHigh · Concord · 2,381 students · 25.3:1 ratio
- Monte Vista HighHigh · Danville · 2,243 students · 24.4:1 ratio
- San Ramon Valley HighHigh · Danville · 1,981 students · 24.5:1 ratio
- College Park HighHigh · Pleasant Hill · 1,956 students · 25.1:1 ratio
- Las Lomas HighHigh · Walnut Creek · 1,571 students · 19.9:1 ratio
- Northgate HighHigh · Walnut Creek · 1,507 students · 24.3:1 ratio
- Mt. Diablo HighHigh · Concord · 1,498 students · 19:1 ratio
- Campolindo HighHigh · Moraga · 1,343 students · 19.8:1 ratio
Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).
Earthquake history
Photos
Sights & places nearby
Notable people from here
Nearby places in California
- Contra Costa Centre3.5 mi away · pop. 6,893
- North Gate3.9 mi away
- Moraga4.1 mi away
- Orinda6 mi away
- Alhambra Valley7.6 mi away · pop. 979
- Pacheco7.8 mi away
- Norris Canyon9.7 mi away
- Piedmont10 mi away
- Camino Tassajara11.1 mi away
- Fairview13.6 mi away · pop. 10,745
- Port Costa13.6 mi away
- East Richmond Heights14.7 mi away
Geography & sun
Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.
Nearby airports
Public attention
Pageview totals from the Wikimedia Pageviews API.
Books about Castle Hill
Search results from Open Library.
Recent natural events nearby
- Wildfire GANN, Calaveras, CaliforniaWildfires · 2026-08-03 · 72 mi
- Wildfire FELIZ, Mendocino, CaliforniaWildfires · 2026-08-01 · 98 mi
- Wildfire LUCAS, Lake, CaliforniaWildfires · 2026-09-10 · 107 mi
- Wildfire LUCAS, Lake, CaliforniaWildfires · 2026-09-10 · 107 mi
- Wildfire Timber, Monterey, CaliforniaWildfires · 2026-08-09 · 116 mi
- Wildfire DOME, Mariposa, CaliforniaWildfires · 2026-09-15 · 135 mi
- Wildfire Plaskett, Monterey, CaliforniaWildfires · 2026-08-26 · 141 mi
- Wildfire FLORISTON, Nevada, CaliforniaWildfires · 2026-09-16 · 152 mi
Wildfires, storms and other events from NASA EONET (last 12 months, within 250 mi).
Ground air-quality sensors
Recently spotted species
Research-grade observations from iNaturalist (within ~15 mi).
Nearest stream gauge
Events
Gallery
Sources
- • Wikipedia
- • US Census Bureau (ACS 5-year estimates)
- • Open-Meteo (ERA5 reanalysis)
- • NOAA National Weather Service
- • Wikidata
- • NCES via Urban Institute Education Data Portal
- • iNaturalist
- • CDC PLACES
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library
- • NASA EONET