Average
#7384 of 9,533 schools in CA
Union Mine High
High School · El Dorado Union High
6530 Koki Ln., EL Dorado, CA 95623
Enrollment
1,046
Student-Teacher
20.9:1
Score
5.1
Grades
9th – 12th
Enrollment
1,046
Student-Teacher
20.9:1
Score
5.1
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In EL Dorado
#2 of 2
public schools
California high schools
#1,576 of 1,892
In district
#5 of 6
El Dorado Union High
About Union Mine High
Union Mine High serves 1,046 students in grades 9-12 in El Dorado, California, with a student-teacher ratio of 20.9:1 across its 50 full-time equivalent faculty members. The school earns a solid 6.7 out of 10 rating from MySchoolScout and ranks in the 68th percentile statewide, placing it at #3052 among California's 9566 schools. Academically, Union Mine High shows particular strength in English Language Arts, where 61% of students perform at proficient or above levels across all grades.
Mathematics presents an area with room for growth, with 30% of students achieving proficient or above levels. The school's overall academic score of 7.0 out of 10 reflects its commitment to student development and educational progress. The school draws from a diverse community where the median household income reaches $94,044 and median home values sit at $495,300.
Within the 95623 zip code area, 23% of residents hold bachelor's degrees or higher, while 21.1% of families experience poverty, creating an economically varied student population of 4,488 residents. Union Mine High is situated in a town setting on the fringe of an urban area, offering students the benefits of both community closeness and access to broader metropolitan opportunities.
What Parents Should Know
The student-teacher ratio at Union Mine High is 20.9:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Score Breakdown
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Union Mine High — Students at Union Mine High score 46% proficient, which is below what's typical for similar communities (expected: 53%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
38.7%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 8 test records from CA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 4.7/10.
How Union Mine High Compares
See how Union Mine High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 43% (2019) to 30.04% (2024). Reading/ELA proficiency has declined from 65% (2019) to 61.16% (2024).
Location
6530 Koki Ln., EL Dorado, CA 95623
Nearby Alternatives
Families considering Union Mine High may also want to explore other high schools in the area. Pacific Crest Academy (rated 6.4/10, 0.2 miles away), which scores notably higher. Another option is SUMMITVIEW ACADEMY (rated 6.4/10, 3.9 miles away, in nearby Placerville), which scores notably higher. Additionally, El Dorado High (rated 5.4/10, 4.2 miles away, in nearby Placerville), which scores slightly higher. For more schools in EL Dorado, see our EL Dorado schools guide .
Nearby Schools
20 within 6.3 mi| School | Distance | Rating |
|---|---|---|
| Pacific Crest Academy El Dorado | 0.2 mi | 6.4 |
| Blaise Pascal School El Dorado | 0.3 mi | — |
| SUMMITVIEW RANCH ACADEMY Placerville | 1.2 mi | — |
| Independence Continuation Placerville | 1.5 mi | 4.6 |
| Sky Mountain Charter Placerville | 1.9 mi | 5.0 |
| Herbert C. Green Middle Placerville | 2.3 mi | 4.9 |
| Charter Alternative Program (CAP) Placerville | 3.4 mi | 8.2 |
| Charter Community School Home Study Academy Placerville | 3.5 mi | 6.8 |
| El Dorado Co Office of Ed Special Ed Programs Placerville | 3.5 mi | 6.8 |
| Indian Creek Elementary Placerville | 3.5 mi | 5.0 |
| SUMMITVIEW ACADEMY Placerville | 3.9 mi | 6.4 |
| Roundtree Acadamy Placerville | 3.6 mi | — |
| El Dorado High Placerville | 4.2 mi | 5.4 |
| Edwin Markham Middle Placerville | 4.3 mi | 4.6 |
| COUNTRY DAY MONTESSORI Placerville | 4.4 mi | — |
| Sierra Elementary Placerville | 4.4 mi | 6.7 |
| California Montessori Project-Shingle Springs Campus Carmichael | 3.9 mi | 6.5 |
| Buckeye Elementary Shingle Springs | 4.1 mi | 6.5 |
| Louisiana Schnell Elementary Placerville | 5.3 mi | 2.5 |
| Heritage Oaks Academy El Dorado | 6.3 mi | — |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 95623 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$106,190
Median Home Value
$570,800
Median Rent
$1,387/mo
Population
4,725
College Educated
27.3%
Homeownership
84%
Avg Commute
34.2 min
Poverty Rate
21%
Median Age
48.2
Community Profile
The community surrounding Union Mine High has a median household income of $106,190. It is an area where 27% of adults hold a bachelor's degree or higher. The median home value in the area is $570,800, with a median rent of $1,387/month. The area has a poverty rate of 21.0%, indicating some economic challenges in the community. The average commute for residents is 34 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Casa Roble Fundamental High Orangevale, CA | 5.1 |
| DE LA SALLE HIGH SCHOOL Concord, CA | 5.1 |
| Fremont High Oakland, CA | 5.1 |
| King City High King City, CA | 5.1 |
| Liberty High Madera, CA | 5.1 |
| Los Angeles Senior High Los Angeles, CA | 5.1 |
Frequently Asked Questions
Common questions about Union Mine High
What grades does Union Mine High serve?
Union Mine High serves students in grades 9th through 12th.
How many students attend Union Mine High?
Union Mine High has an enrollment of approximately 1,046 students.
What is the student-teacher ratio at Union Mine High?
The student-teacher ratio at Union Mine High is 20.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Union Mine High rank in CA?
Union Mine High is ranked #7384 out of 9,533 schools in CA.
What is Union Mine High's MySchoolScout rating?
Union Mine High has a composite rating of 5.1 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Union Mine High?
Based on the most recent state assessment data, Union Mine High has 33.5% math proficiency and 63.3% reading/ELA proficiency.
Is Union Mine High a charter school?
No, Union Mine High is not a charter school. It is a traditional public school operated by the local school district.
Is Union Mine High a Title I school?
No, Union Mine High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Union Mine High?
38.7% of students at Union Mine High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
Powered by 
FBI UCR 2024. County-level only. Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,046
- Student-Teacher Ratio
- 20.9:1
- Teachers (FTE)
- 50
- Free/Reduced Lunch
- 38.7%
- Type
- regular
- Setting
- Fringe Town
- County
- El Dorado County
- Phone
- (530) 621-4003
- Data Year
- 2023–2024
Resources & Links
District
El Dorado Union High- District Enrollment
- 6,541
- Schools in District
- 6
- Per-Pupil Spending
- $14,748
- District Rank
- #5 of 6
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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