Blackhawk is a community in Contra Costa County, California, home to about 10,137 people across 5.8 square miles. It has no ZIP code of its own: it’s part of 94506.
Homes sold for a median of $716 per square foot in the three months ending August 2026, a seller’s market.
Mostly Danville; part is in Blackhawk
Each card is that ZIP code’s whole market, including any part outside Blackhawk. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Blackhawk’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Oakland San Francisco Bay Airport (OAK)18 miles away |
|---|---|
| Closer regional airport | Buchanan Field (CCR)13 miles away |
| Nearest city of 250,000+ | Oakland, CA17 miles away |
| Nearest city of 1 million+ | Los Angeles, CA328 miles away |
Straight-line distances from the center of Blackhawk; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Blackhawk had 9,637 residents in the 2020 census, up 3% since 2010.
It’s the 496th largest of 1,563 towns in California by population.
Contra Costa County grew from 18,046 residents in 1900 to 1,165,927 in 2020.
Contra Costa County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 41°F. About 26.1 inches of rain and melted snow fall in a typical year, with about 1 inches of snow.
Source: NOAA 1991–2020 climate normals, Mt Diablo Junction, CA weather station (3 miles away).
343,690 jobs at 25,932 businesses in Contra Costa County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
121 doctors and other health care providers list an office in Blackhawk.
Nearest hospitals
Providers with an office here
| Primary care doctors | 17 |
|---|---|
| Specialist doctors | 12 |
| Dentists | 27 |
| Nurse practitioners and physician assistants | 21 |
| Mental health providers | 26 |
| Physical and occupational therapists | 7 |
| Optometrists | 5 |
| Chiropractors | 6 |
| Pharmacies | 2 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Grocery stores
Pharmacies
Libraries
Museums
Theaters and performance venues
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by San Ramon Valley Unified. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Creekside ElementaryDanville | K–5 | 549 | Public | 3.3 mi |
| Sycamore Valley ElementaryDanville | K–5 | 559 | Public | 2.3 mi |
| Tassajara Hills ElementaryDanville | K–5 | 506 | Public | 3.0 mi |
| Diablo Vista MiddleDanville | 6–8 | 835 | Public | 2.5 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Harper SchoolDanville | Pre-K–K | 5 | Nonsectarian | 2.2 mi |
| The Athenian SchoolDanville | 6–12 | 537 | Nonsectarian | 1.7 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Danville and Camino Tassajara.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.