William S. Hart Union High School District, California
William S. Hart Union High School District is a secondary (high school) district in Los Angeles County, California, for grades 7–12. About 283,059 people live in it (2020–2024 estimate). It covers 392 sq mi (1,016 km²) of land.
- Population, 2020–2024 estimate
- 283,059 ± 2,427
- Grades
- 7–12
- Type
- Secondary (high school) district
- County
- Los Angeles County
- Land area
- 392 sq mi (1,016 km²)
- Median household income
- $126,615 ± $3,395
- Median home value
- $796,300 ± $8,323
- Water area
- 5.38 sq mi (13.9 km²)
- State
- California
- Census code (GEOID)
- 0642510
- Coordinates (central point)
- 34.480464, -118.550187
These coordinates mark a central point for the district, not a school or an address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.
Towns, townships and communities in William S. Hart Union High School District, largest first
- Santa Clarita (city)230,221 people
- Stevenson Ranch (CDP)20,990 people
- Castaic (CDP)17,999 people
- Val Verde (CDP)3,291 people
- Hasley Canyon (CDP)1,216 people
A town, township, city or borough is listed when at least half its land is in the district; a community, when its central point is. Near a district line, an address can belong to the district next door.
Bordering secondary (high school) districts, nearest first
- Antelope Valley Union Joint High School District26 mi northeast
These share a boundary with William S. Hart Union High School District. Distances are straight lines between central points.
Before using this answer for enrollment
A district boundary doesn’t decide which school a student attends; the district’s attendance zones and rules do. Confirm the full address and grade with William S. Hart Union High School District before you rely on it.
See its schools and enrollment on NCES ↗
Find the school district where you are now or find your town or township.