Enrollment
208
Elementary
DISTRICT 130 · STATE 465
SCHOOL COMMUNITY·NEVADA COUNTY OFFICE OF EDUCATION·NCES 069102311877
Twin Ridges Home Study Charter
111 New Mohawk Rd., Nevada City, CA 95959 · (530) 478-1815 · Nevada County
GRADES KG–08ELEMENTARY32-TOWNCHARTERTITLE IREGULAR SCHOOL208 STUDENTS
D
allk12 Grade
Scored higher than 14% of California public elementary schools
- C+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- FBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- DThree-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public elementary schools
Student : Teacher
19.2:1
11 FTE teachers
DISTRICT 13.2:1 · STATE 22.3:1
Free / Reduced Lunch
48%
100 students
DISTRICT 52% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 39 | 19% |
| Grade 1 | 23 | 11% |
| Grade 2 | 23 | 11% |
| Grade 3 | 21 | 10% |
| Grade 4 | 22 | 11% |
| Grade 5 | 36 | 17% |
| Grade 6 | 20 | 10% |
| Grade 7 | 15 | 7% |
| Grade 8 | 9 | 4% |
Student demographics
37%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 39% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
Twin Ridges Home Study Charter→Bitney Prep High
Based on grade levels within Nevada County Office of Education. Attendance zones can vary; confirm enrollment with the district.
QUIET COMMUNITY
Be the first to start a discussion at Twin Ridges Home Study Charter.
START A DISCUSSIONTest scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
38.0%
CA avg 49.1% . -11.0pp since 2014
Math
22.4%
CA avg 37.7% . -1.6pp since 2014
What this means: On the CAASPP, California's statewide test, about 38 of every 100 students at this school read and write at grade level and about 22 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are down about 11 points since 2014, while math scores are down about 2 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 8.3% | 29.6% | 28.7% | 33.3% |
| Math | 5.6% | 16.8% | 28.0% | 49.5% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 38.0% | 22.4% |
| 2023-24 | 37.8% | 27.8% |
| 2022-23 | 41.9% | 30.2% |
| 2021-22 | 45.8% | 33.0% |
| 2020-21 | 56.2% | 44.6% |
| 2018-19 | 41.0% | 19.5% |
| 2017-18 | 46.7% | 20.0% |
| 2016-17 | 58.5% | 26.8% |
| 2015-16 | 54.0% | 17.0% |
| 2014-15 | 49.0% | 24.0% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
32.0%
composite math + reading, all grades
Predicted
51.4%
based on CA schools with similar FRL share
Beats by
-19.4pp
below demographic expectation
What this means: About 32% of students here test proficient in math and reading, below the roughly 51% typical for California schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Twin Ridges Home Study Charter
Twin Ridges Home Study Charter's state test result (32.0% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Twin Ridges Home Study Charter this school | 208 | 48.1% | 32.0% |
| Millville Elementary Millville | 208 | 45.7% | 56.5% |
| Reeds Creek Elementary Red Bluff | 195 | 45.6% | 29.7% |
| Hydesville Elementary Hydesville | 220 | 51.8% | 48.6% |
| Albert A. Michelson Elementary Murphys | 226 | 46.5% | 56.1% |
| Georgetown Elementary Georgetown | 229 | 52.0% | 28.2% |
Matched among California elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Twin Ridges Home Study Charter ranks
Among elementary schools| Measure | This school | In California | In Nevada County |
|---|---|---|---|
| State test proficiency ranked highest first | 32.0% | #3,277 of 5,151 | #13 of 14 |
| Math proficiency ranked highest first | 22.4% | #4,056 of 5,172 ▼ 745 | #13 of 14 no change |
| Reading proficiency ranked highest first | 38.0% | #3,132 of 5,172 ▼ 198 | #12 of 14 ▲ 1 |
| 3-year test score change ranked biggest drop first | -9.2pp | #166 of 5,116 | #2 of 14 |
| Enrollment ranked largest first | 208 | #5,324 of 5,915 | #14 of 20 |
| Students per teacher ranked fewest first | 19.2:1 | #605 of 5,352 | #2 of 14 |
| Diversity index ranked most diverse first | 37.0% | #3,614 of 5,354 | #11 of 14 |
| Free and reduced lunch ranked highest share first | 48.1% | #4,001 of 5,625 | #7 of 17 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
7-year change
SY 2017-18 vs SY 2024-25Enrollment
208
+39 (+23%) vs 2017
Student : Teacher
19.2:1
was 24.9:1
% White
78%
was 73%
% Hispanic
7%
was 11%
% Black
1%
was 4%
% Asian
0%
was 2%
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 208 | 10.8 | 19.2:1 | 48% (100) |
| 2023-24 | 220 | 10.8 | 20.3:1 | 38% (83) |
| 2022-23 | 202 | 9.8 | 20.6:1 | 27% (55) |
| 2017-18 | 169 | 6.8 | 24.9:1 | 33% (56) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Twin Ridges Home Study Charter.
Since 2017-18: students up 23% (169 to 208); teachers up 59% (6.8 to 10.8).
About Twin Ridges Home Study Charter
Twin Ridges Home Study Charter is a small elementary school in Nevada City, California. The school has 208 students in 2024-25 across kindergarten through 8. Elementary schools in California average about 465 students, which makes this school 55% below average.
Nevada County Office of Education, which runs Twin Ridges Home Study Charter, has 5 schools and 1,200 students.
The largest group at Twin Ridges Home Study Charter is White students, at 78%. The remaining students are 10% multiracial and 7% Hispanic. On the diversity index, which measures the chance that two random students are from different groups, Twin Ridges Home Study Charter scores 37%.
Its staff includes 10.8 full-time-equivalent teachers, for about 19.2 students per teacher. The average for elementary schools in California, 22.3:1, is higher. Twin Ridges Home Study Charter has a free or reduced-price lunch rate of 48%.
On the allk12 Grade, Twin Ridges Home Study Charter lands at D, ahead of 14% of California public elementary schools.
On allk12's BeatsExpectations measure, Twin Ridges Home Study Charter is among the bottom 10% of schools in California. Predicted: 51.4%. Actual: 32.0%.
American Community Survey estimates for Nevada County show that median household income comes to about $89,882, roughly 42% of adults have a four-year degree or more, and about 7% of residents live below the federal poverty line. Nevada County counts 46 public schools with about 13,561 students.
Straight-line distance to the nearest public school, Forest Charter, is about 0.7 miles. Around the school, at least 8 other public schools are within five miles. By average proficiency, Twin Ridges Home Study Charter is 5th among 5 schools close by.
NCES assigns Twin Ridges Home Study Charter the locale Town: Distant, meaning in a town some distance from an urbanized area. Twin Ridges Home Study Charter is run as a public charter school.
Enrollment in 2024-25 stood at 208, compared with 169 in 2017-18. The student mix also changed: the White share increased from 73% to 78%. From 2017-18 to 2024-25, the ratio dropped from 24.9:1 to 19.2:1.
You can use this page to share news and ask questions about fundraisers, report cards, and school supplies. You can also rate the school on this page.
Nevada County at a glance
View full county profilePopulation
102,481
Census ACS
Median income
$89,882
Household, ACS
Bachelor's+
42%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
46
13,561 students
Quick facts
Related schools
Other schools in Nevada County Office of Education
- Forest CharterCombined · 845 students
- Bitney Prep HighHigh · 91 students
- Nevada County Special EducationElementary · 51 students
- Earle Jamieson Educational OptionsHigh · 5 students
- Early Childhood EducationElementary
Other schools in Nevada City
- Forest CharterCombined · 845 students
- Nevada City School of the ArtsElementary · 477 students
- Seven Hills IntermediateMiddle · 432 students
- Deer Creek ElementaryElementary · 259 students
- Sierra Academy of Expeditionary LearningHigh · 191 students
- Grizzly HillElementary · 105 students
Nearby schools
- Forest Charter0.7 mi · 845
- Earle Jamieson Educational Options0.7 mi · 5
- Deer Creek Elementary0.7 mi · 259
- Nevada County Special Education0.8 mi · 51
- Seven Hills Intermediate0.9 mi · 432
- Sierra Academy of Expeditionary Learning1.2 mi · 191
Frequently asked questions
About Twin Ridges Home Study CharterHow many students attend Twin Ridges Home Study Charter?
Twin Ridges Home Study Charter enrolls approximately 208 students in grades KG-08.
What age range does Twin Ridges Home Study Charter serve?
Twin Ridges Home Study Charter serves students from grade KG through grade 08.
What is the student-teacher ratio at Twin Ridges Home Study Charter?
The student-to-teacher ratio at Twin Ridges Home Study Charter is approximately 19.2:1 (11 FTE teachers).
How diverse is Twin Ridges Home Study Charter?
Twin Ridges Home Study Charter reports a student body of 78% White, 7% Hispanic, 1% Black, 0% Asian, 10% Two or more.
Is Twin Ridges Home Study Charter public or private?
Twin Ridges Home Study Charter is a public K-12 school operated as a charter, overseen by Nevada County Office of Education.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.