Twin Hills Charter Middle

Public, Charter 6-8

 1685 Watertrough Rd.
       Sebastopol, CA  95472-4647


(707) 823-7446

District: Twin Hills Union Elementary

SchoolDigger Rank:
270th of 2,798 California Middle Schools

Per Pupil Expenditures:  $8,897 Help


Students who attend Twin Hills Charter Middle usually attend:

High:    Analy High

Feeder schools for Twin Hills Charter Middle:

Elementary:    Apple Blossom

Student/teacher ratio:  15.9 Help
Number of students:  204

Racial breakdown:

White:
63.7%
Hispanic:
20.6%
Two or more races:
11.3%
more

Free/discounted lunch recipients:  27% Help


 See top rated California middle schools

 Compare Twin Hills Charter Middle to nearby middle schools!

Performance Trends
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Compare Details Twin Hills Charter Middle ranks better than 90.4% of middle schools in California. (See more...)
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Compare Details In 2023 the calculated Average Standard Score was 90.56. (See more...)
Help
Chronic absenteeism in a high school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.
Student Body
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Compare Details Racial makeup is: White (63.7%), Hispanic (20.6%), two or more races (11.3%). (See more...)
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Compare Details 27% of students are receiving a free or discounted lunch. (See more...)
Teachers
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Compare Details The student/teacher ratio at Twin Hills Charter Middle is 15.9. (See more...)
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Compare Twin Hills Charter Middle employs 12.7 full-time teachers.
Finance
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Compare Details The average total spent per student at Twin Hills Charter Middle is $8,897.
Schooldigger 2023 Rankings:

Twin Hills Charter Middle:

SchoolDigger ranks Twin Hills Charter Middle 270th of 2798 California public middle schools. (See Twin Hills Charter Middle in the ranking list.)

Middle School Test Score Ratings by Student Subgroup:


Low Socio Economic Status students:
Female students:
Male students:
Hispanic students:
White students:


Twin Hills Union Elementary:

SchoolDigger ranks Twin Hills Union Elementary 234th of 1560 California school districts. (See district ranking list.)


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Your rating for Twin Hills Charter Middle?

Rank History for Twin Hills Charter Middle

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Rank History for all students at Twin Hills Charter Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2004 88.48 142nd 1769 92.0%
2005 85.01 201st 1777 88.7%
2006 79.59 300th 1804 83.4%
2007 84.82 218th 1999 89.1%
2008 83.38 228th 2005 88.6%
2009 85.83 170th 2063 91.8%
2010 88.45 125th 2179 94.3%
2011 89.85 91st 2236 95.9%
2012 89.22 99th 2259 95.6%
2013 89.20 105th 2379 95.6%
2015 77.64 476th 2477 80.8%
2016 64.87 760th 2497 69.6%
2017 80.12 457th 2508 81.8%
2018 75.79 515th 2480 79.2%
2019 82.57 423rd 2715 84.4%
2022 82.98 419th 2740 84.7%
2023 90.56 269th 2788 90.4%
See the entire list of California Middle School Rankings!

Rank History for Low Socio Economic Status students at Twin Hills Charter Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 70.77 460th 2230 79.4%
2019 78.29 341st 2369 85.6%
2022 78.42 328th 2458 86.7%
2023 94.50 88th 2535 96.5%
See the entire list of Best California Middle Schools for Low Socio Economic Status Students!

Rank History for Female students at Twin Hills Charter Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 75.00 499th 2262 77.9%
2019 83.29 361st 2380 84.8%
2022 82.02 396th 2509 84.2%
2023 92.24 189th 2535 92.5%
See the entire list of Best California Middle Schools for Female Students!

Rank History for Disabled students at Twin Hills Charter Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2019 98.06 27th 1491 98.2%
See the entire list of Best California Middle Schools for Disabled Students!

Rank History for Male students at Twin Hills Charter Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 74.00 522nd 2273 77.0%
2019 77.27 480th 2407 80.1%
2022 80.75 428th 2527 83.1%
2023 84.54 353rd 2546 86.1%
See the entire list of Best California Middle Schools for Male Students!

Rank History for Hispanic students at Twin Hills Charter Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 80.81 266th 2072 87.2%
2019 78.32 337th 2213 84.8%
2022 90.34 134th 2359 94.3%
2023 86.26 203rd 2379 91.5%
See the entire list of Best California Middle Schools for Hispanic Students!

Rank History for White students at Twin Hills Charter Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 57.83 634th 1496 57.6%
2019 67.02 503rd 1602 68.6%
2022 64.06 515th 1555 66.9%
2023 76.39 308th 1549 80.1%
See the entire list of Best California Middle Schools for White Students!

Data source: test scores: California Department of Education, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Twin Hills Charter Middle Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
Subgroup: 






Data source: California Department of Education

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Enrollment information for Twin Hills Charter Middle

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Compare
Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1988 326 3 5 18 3 n/a n/a 0 355
1989 339 1 7 10 1 n/a n/a 0 358
1990 368 4 6 24 3 n/a n/a 0 405
1991 277 7 5 12 0 n/a n/a 0 301
1992 268 3 5 12 0 n/a n/a 0 288
1993 278 4 6 12 0 n/a n/a 0 300
1994 289 5 2 15 4 n/a n/a 0 315
1995 305 3 11 18 2 n/a n/a 0 339
1996 305 3 11 18 2 n/a n/a 0 339
1997 312 2 7 30 1 n/a n/a 0 352
1998 333 6 9 20 4 n/a n/a 0 372
1999 290 4 11 32 3 n/a n/a 1 341
2000 318 4 12 23 5 n/a n/a 1 363
2001 277 4 10 31 2 n/a n/a 4 328
2002 254 7 6 31 5 n/a n/a 0 303
2003 254 7 6 31 5 n/a n/a 0 303
2004 235 3 8 33 2 n/a n/a 0 281
2005 229 7 8 29 2 n/a n/a 0 275
2006 211 4 6 30 2 n/a n/a 0 253
2007 197 4 10 26 1 n/a n/a 1 239
2008 174 5 10 29 2 n/a n/a 0 220
2009 173 4 12 29 1 0 0 0 219
2010 191 3 6 36 1 1 1 0 239
2011 220 1 10 51 2 1 5 0 290
2012 236 2 6 52 1 1 13 0 311
2013 225 3 6 54 1 0 14 0 303
2014 227 5 6 58 1 1 12 0 310
2015 250 5 8 66 0 0 17 0 346
2016 222 3 5 63 0 0 27 0 320
2017 222 2 2 59 0 0 28 0 313
2018 182 2 3 56 1 1 22 0 267
2019 200 2 4 52 2 0 21 0 281
2020 167 1 5 48 2 0 25 0 248
2021 148 0 3 48 2 0 24 1 226
2022 135 0 3 45 2 0 20 2 207
2023 130 0 5 42 1 0 23 3 204

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Twin Hills Charter Middle

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 355 16.6 21.3 n/a
1989 358 15.6 22.9 n/a
1990 405 17.5 23.1 n/a
1991 301 15.6 19.2 n/a
1992 288 15.9 18.1 6.9
1993 300 13.6 22.1 9.3
1994 315 12.4 25.4 13.3
1995 339 15.0 22.6 7.4
1996 339 15.0 22.6 7.4
1997 352 16.7 21.1 10.5
1998 372 17.6 21.1 8.1
1999 341 17.6 19.4 10.9
2000 363 17.6 20.6 10.2
2001 328 18.0 18.2 9.6
2002 303 17.0 17.8 12.2
2003 303 17.0 17.8 12.2
2004 281 16.0 17.6 11
2005 275 14.8 18.6 13.5
2006 253 14.1 17.9 14.6
2007 239 13.1 18.2 11.8
2008 220 14.1 15.6 10.5
2009 219 12.4 16.2 10.5
2010 239 12.0 19.9 13.4
2011 290 n/a n/a 18.3
2012 311 13.9 22.2 n/a
2013 303 13.4 22.5 19.5
2014 310 13.2 23.3 17.7
2015 346 15.0 23.0 20.5
2016 320 15.0 21.3 16.9
2017 313 16.0 19.5 17.9
2018 267 16.0 16.6 24.7
2019 281 15.1 18.6 23.8
2020 248 n/a n/a 23.4
2021 226 15.0 15.0 21.2
2022 207 14.2 14.5 22.2
2023 204 12.7 15.9 27

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Twin Hills Charter Middle

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1988 355 16.6 21.3 n/a
1989 358 15.6 22.9 n/a
1990 405 17.5 23.1 n/a
1991 301 15.6 19.2 n/a
1992 288 15.9 18.1 6.9
1993 300 13.6 22.1 9.3
1994 315 12.4 25.4 13.3
1995 339 15.0 22.6 7.4
1996 339 15.0 22.6 7.4
1997 352 16.7 21.1 10.5
1998 372 17.6 21.1 8.1
1999 341 17.6 19.4 10.9
2000 363 17.6 20.6 10.2
2001 328 18.0 18.2 9.6
2002 303 17.0 17.8 12.2
2003 303 17.0 17.8 12.2
2004 281 16.0 17.6 11
2005 275 14.8 18.6 13.5
2006 253 14.1 17.9 14.6
2007 239 13.1 18.2 11.8
2008 220 14.1 15.6 10.5
2009 219 12.4 16.2 10.5
2010 239 12.0 19.9 13.4
2011 290 n/a n/a 18.3
2012 311 13.9 22.2 n/a
2013 303 13.4 22.5 19.5
2014 310 13.2 23.3 17.7
2015 346 15.0 23.0 20.5
2016 320 15.0 21.3 16.9
2017 313 16.0 19.5 17.9
2018 267 16.0 16.6 24.7
2019 281 15.1 18.6 23.8
2020 248 n/a n/a 23.4
2021 226 15.0 15.0 21.2
2022 207 14.2 14.5 22.2
2023 204 12.7 15.9 27

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.
Finances

Per Pupil Expenditures for Twin Hills Charter Middle

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YearTotal Expenditures Per Pupil
2018 $8,897

Data source: California Department of Education
Pre and Post Pandemic Data

Impact of COVID-19 on Twin Hills Charter Middle

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Rankings

Rank
Pre-pandemic (2018-2019)
Rank
Post pandemic (2022-2023)
Change (%)
Ranks 423rd of 2715 Middle schoolsRanks 269th of 2788 Middle schools
 5.9%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
6th Grade English Language Arts/Literacy (Twin Hills Charter Middle)66.767.9
 1.3%
   6th Grade English Language Arts/Literacy (Twin Hills Union Elementary)64.965.1
 0.2%
   6th Grade English Language Arts/Literacy (California)48.544.2
 4.3%
6th Grade Mathematics (Twin Hills Charter Middle)51.347.2
 4.1%
   6th Grade Mathematics (Twin Hills Union Elementary)50.539.3
 11.2%
   6th Grade Mathematics (California)38.533.2
 5.3%
7th Grade English Language Arts/Literacy (Twin Hills Charter Middle)65.672.9
 7.3%
   7th Grade English Language Arts/Literacy (Twin Hills Union Elementary)70.572
 1.5%
   7th Grade English Language Arts/Literacy (California)51.447.4
 3.9%
7th Grade Mathematics (Twin Hills Charter Middle)4348.6
 5.6%
   7th Grade Mathematics (Twin Hills Union Elementary)46.450.9
 4.5%
   7th Grade Mathematics (California)37.933.2
 4.7%
8th Grade English Language Arts/Literacy (Twin Hills Charter Middle)7578.9
 3.9%
   8th Grade English Language Arts/Literacy (Twin Hills Union Elementary)78.478.2
 0.2%
   8th Grade English Language Arts/Literacy (California)49.445.7
 3.8%
8th Grade Mathematics (Twin Hills Charter Middle)59.873.6
 13.8%
   8th Grade Mathematics (Twin Hills Union Elementary)57.566.4
 8.9%
   8th Grade Mathematics (California)36.629.9
 6.7%
8th Grade Science (Twin Hills Charter Middle)57.555.6
 1.9%
   8th Grade Science (Twin Hills Union Elementary)5650
 6%
   8th Grade Science (California)30.828.8
 2.1%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students281204
 27.4%
African American20
 100%
American Indian21
 50%
Asian45
 25%
Hispanic5242
 19.2%
Pacific Islander00
White200130
 35%
Two or More Races2123
 9.5%
% Free/Discounted Lunch Recipients23.8%27%
 3.1%


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Frequently Asked Questions about Twin Hills Charter Middle

Students at Twin Hills Charter Middle are 64% White, 21% Hispanic, 11% Two or more races, 2% Asian, 1% Not Specified.

In the 2022-23 school year, 204 students attended Twin Hills Charter Middle.

Yes. Twin Hills Charter Middle ranks in the top 9.6% of California middle schools.

Students who attend Twin Hills Charter Middle usually go on to attend Analy High


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education. Attendance Areas provided by ATTOM.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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