Southern Trinity Joint Unified School District, California

Southern Trinity Joint Unified School District is a unified school district in Trinity County and Humboldt County, California, for grades K–12. About 1,233 people live in it (2020–2024 estimate). It covers 875 sq mi (2,266 km²) of land.

Los AngelesSan DiegoSan Jose
Southern Trinity Joint Unified School District in California
Mountain Valley Unified School DistrictSouthern Humboldt Joint Unified School District
Southern Trinity Joint Unified School District and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
1,233 ± 497
Grades
K–12
Type
Unified school district
Counties
Trinity County97% of the district’s landHumboldt County3% of the district’s land
Land area
875 sq mi (2,266 km²)
Median household income
$64,688 ± $53,070
Median home value
$261,200 ± $90,949
Water area
1.85 sq mi (4.79 km²)
State
California
Census code (GEOID)
0637630
Coordinates (central point)
40.072171, -123.108103

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 Southern Trinity Joint Unified School District, largest first

  1. Ruth (CDP)480 people
  2. Mad River (CDP)272 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 unified school districts, nearest first

  1. Round Valley Unified School District21 mi south
  2. Laytonville Unified School District31 mi southwest
  3. Mountain Valley Unified School District33 mi north
  4. Southern Humboldt Joint Unified School District38 mi west

These share a boundary with Southern Trinity Joint Unified 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 Southern Trinity Joint Unified 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.