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B+

Union Mine High

PublicHighGrades 9–12

6530 Koki Ln., El Dorado, CA 95623 · (530) 621-4003 · Part of El Dorado Union High School District

Diamond Springs’ School Grade B+ better than 69% of California school districts

Directions
Students
1,033
Students per teacher
21:1
Free or reduced lunch
37%
Setting
Town
Grades
9–12
The gist

What stands out about Union Mine High

  • Its own letter, B+: better results than 70% of California’s public schools
  • Reading / language arts 17 pts above the state
  • Larger classes: 21 students per teacher
  • Enrollment down 8.7% since 2020–21

On the path

Where Diamond Springs kids come from and go next. The whole path →

5–8Herbert C. Green Middlein Placerville
9–12Union Mine HighYou are here

Test scores

2020–21
Math proficiency31%
State average 33.6%
Reading / language arts66%
State average 48.6%

Its own letter, B+, places these results among California’s 3,615 public schools with results. Source: EDFacts via Urban Institute Education Data Portal (SY2020-21).

Location

Directions ↗

6530 Koki Ln., El Dorado

Students

Enrollment by grade
Grade 9252
Grade 10276
Grade 11256
Grade 12249
Enrollment over time
1,132’20
1,125’21
1,066’22
1,046’23
1,033’24

Down 8.7% since 2020–21.

Who goes here
White 66%Hispanic 25%Two or more races 6%American Indian/Alaska Native 1%Asian <1%Black <1%Native Hawaiian/Pacific Islander <1%

As reported to NCES, share of students with a reported race or ethnicity.

Parents talk

Questions and answers about Union Mine High from Diamond Springs families.

Other schools in El Dorado Union High School District

The district →
Oak Ridge High
High · Grades 8–12 · El Dorado Hills
A
2,346 students25:1
Ponderosa High
High · Grades 9–12 · Shingle Springs
A
1,675 students23:1
El Dorado High
High · Grades 9–12 · Placerville
B+
1,135 students21:1
Pacific Crest Academy
High · Grades 9–12 · El Dorado
A+
117 students24:1
Independence Continuation
High · Grades 9–12 · Diamond Springs
D−
104 students18:1

School facts: U.S. Department of Education (NCES), 2024–2025 school year. Test scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). A school’s letter is our own summary of its reading and math results against California’s other public schools; Diamond Springs’s School Grade is built from its districts’ results. Map: © OpenStreetMap contributors.