Informed Parents Logo
Support Our Work

Lassen County

11 districts  ·  21 schools  ·  CAASPP data 2019–2026

← All Counties
County-Wide Test Scores (% Proficient or Above)
35.89%
ELA 2025–2026
41.19%
ELA 2019
23.48%
Math 2025–2026
31.15%
Math 2019
6-Year Trend (ELA & Math)
▼ -5.30pp since 2019▼ -7.67pp since 2019
▲ 1.56pp since 2026▲ 1.34pp since 2026
Score Key
Scores show the % of students meeting or exceeding California grade-level standards (CAASPP)
ELAEnglish Language Arts — reading, writing & communication, assessed in grades 3–8 & 11
MathMathematics — problem-solving and quantitative reasoning skills
▲Improved since the comparison year
▼Declined since the comparison year
Lassen County Office of Education
SuperintendentPatricia Gunderson
Phone(530) 257-2196
Emailpgunderson@lcoe.org
Websitehttps://www.lcoe.org
Address472-013 Johnstonville Rd.
North, Susanville, CA 96130
Data last updated: October 2026  •  Source: CAASPP 2019-2026
Districts & Schools
⚲
Big Valley Joint Unified
ELA 16.98%Math 15.09%
District Leadership
SuperintendentTeresa Ragsdale
Phone(530) 294-5231
Emailtragsdale@bigvalleyschool.org
Websitehttps://www.bigvalleyschool.org
Address400 Bridge Street
Bieber, CA 96009
Score History (% Proficient)
YearELAMath
201935.38%21.54%
202114.04%5.26%
202221.13%21.13%
202318.75%9.38%
202427.87%17.46%
202616.98%15.09%
ELA Trend
▼ 18.4pp since 2019
Math Trend
▼ 6.45pp since 2019
School Board Members
NameRole / AreaTerm Exp.
Cole JoinerMember—
Deborah PeckMember—
Jeff HojMember—
Matthew MitchellMember—
Schools (2)
Big Valley Elementary
PrincipalTeresa Ragsdale
Phone(530) 294-5214
Emailtragsdaler@bigvalleyschool.org
Websitehttps://www.bigvalleyschool.org/Schools/Big-Valley-Elementary-School/index.html
Address90 First St., Bieber, CA 96009
Big Valley Jr. Sr. High
PrincipalTeresa Ragsdale
Phone(530) 294-5231
Emailtragsdale@bigvalleyschool.org
Websitehttps://www.bigvalleyschool.org/Schools/Big-Valley-JrSr-High-School/index.html
Address400 Bridge St., Bieber, CA 96009
Fort Sage Unified
ELA 14.56%Math 5.77%
District Leadership
SuperintendentDerek Cooper
Phone(530) 827-2129
Emaildcooper@fortsage.org
Websitehttps://www.fortsage.org
Address100 DS Hall Street
Herlong, CA 96113
Score History (% Proficient)
YearELAMath
201937.3%14.84%
202128.07%11.3%
202221.26%9.52%
202319.17%15.7%
202423.73%8.55%
202614.56%5.77%
ELA Trend
▼ 22.74pp since 2019
Math Trend
▼ 9.07pp since 2019
School Board Members
NameRole / AreaTerm Exp.
Member—
Schools (5)
Fort Sage Middle
PrincipalDerek Cooper
Phone(530) 827-2101
Emaildcooper@fortsage.org
Websitehttps://www.fortsage.org/schools/fort_sage_middle_school
Address200 DS Hall, Herlong, CA 96113
Herlong High
PrincipalDerek Cooper
Phone(530) 827-2101
Emaildcooper@fortsage.org
Websitehttps://www.fortsage.org/schools/herlong_high_school
Address200 DS Hall, Herlong, CA 96113
Long Valley
PrincipalSherri Morgan
Phone(530) 827-2395
Emailsmorgan@longvalleycs.org
Websitewww.longvalleycs.org
Address436-965 Susan Dr., Doyle, CA 96109
Mt. Lassen Charter
PrincipalHillary Magarrell
Phone(530) 827-2129
Emailhmagarrell@fortsage.org
Websitehttp://fortsage.org
Address100 David S Hall St., Herlong, CA 96113
Sierra Primary
PrincipalDerek Cooper
Phone(530) 827-2126
Emaildcooper@fortsage.org
Websitehttps://www.fortsage.org/schools/sierra_primary_school
Address100 DS Hall St., Herlong, CA 96113
Janesville Union Elementary
ELA 46.43%Math 33.33%
District Leadership
SuperintendentJamie Lewis
Phone(530) 253-3660
Emailjlewis@janesvilleschool.org
Websitehttps://www.janesvilleschool.org
Address464-555 Main Street
Janesville, CA 96114
Score History (% Proficient)
YearELAMath
201940.68%25.96%
202133.18%20.18%
202233.04%26.91%
202337.25%33.99%
202434.48%27.72%
202646.43%33.33%
ELA Trend
▲ 5.75pp since 2019
Math Trend
▲ 7.37pp since 2019
School Board Members
NameRole / AreaTerm Exp.
Member—
Schools (1)
Janesville Elementary
PrincipalJamie Lewis
Phone(530) 253-3551
Emailjlewis@janesvilleschool.org
Websitewww.janesvilleschool.org/
Address464-555 Main St., Janesville, CA 96114
Johnstonville Elementary
ELA 35.59%Math 26.05%
District Leadership
SuperintendentScott Smith
Phone(530) 257-2471
Emailssmith@johnstonville.org
Websitehttps://www.johnstonville.org
Address704-795 Bangham Lane
Susanville, CA 96130
Score History (% Proficient)
YearELAMath
201954.1%37.4%
202149.12%33.04%
202248.25%41.23%
202334.68%34.68%
202433.33%26.67%
202635.59%26.05%
ELA Trend
▼ 18.51pp since 2019
Math Trend
▼ 11.35pp since 2019
School Board Members
NameRole / AreaTerm Exp.
Member—
Schools (1)
Johnstonville Elementary
PrincipalScott Smith
Phone(530) 257-2471
Emailssmith@johnstonville.org
Websitewww.johnstonville.org
Address704-795 Bangham Ln., Susanville, CA 96130
Lassen County Office of Education
ELA —Math —
District Leadership
SuperintendentPatricia Gunderson
Phone(530) 257-2196
Emailpgunderson@lcoe.org
Websitehttps://www.lcoe.org
Address472-013 Johnstonville Road
North, Susanville, CA 96130
Score History (% Proficient)
YearELAMath
2019——
2021——
2022——
2023——
2024——
2026——
ELA Trend
since 2021
Math Trend
since 2021
Schools (1)
Lassen County Special Education
PrincipalJoshua Kim
Phone(530) 257-2196
Emailjkim@lcoe.org
Websitehttps://www.lcoe.org/Services/Departments/Special-Education/index.html
Address472-013 Johnstonville Rd., North, Susanville, CA 96130
Lassen Union High
ELA 34.32%Math 17.06%
District Leadership
SuperintendentJacob Jensen
Phone(530) 257-5134
EmailJacob.jensen@lassenhigh.org
Websitehttps://www.lassenhigh.org
Address1000 Main Street
Susanville, CA 96130
Score History (% Proficient)
YearELAMath
201956.4%31.4%
202144.68%12.63%
202229.83%10.44%
202333.16%13.92%
202448.3%15.17%
202634.32%17.06%
ELA Trend
▼ 22.08pp since 2019
Math Trend
▼ 14.34pp since 2019
School Board Members
NameRole / AreaTerm Exp.
Member—
Schools (2)
Credence High
PrincipalBob Nielsen
Phone(530) 257-5134
Emailrobert.nielsen@lassenhigh.org
Websitewww.lassenhigh.org
Address813 Cottage St., Susanville, CA 96130
Lassen High
PrincipalLynn Pikero
Phone(530) 257-2141
Emaillynn.pikero@lassenhigh.org
Websitehttps://www.lassenhigh.org/
Address1110 Main St., Susanville, CA 96130
Ravendale-Termo Elementary
District Leadership
SuperintendentJason Waddell
Phone(530) 257-8200
Emailjwaddell@juniperridge.org
Websitehttps://www.juniperridge.org
Address709-855 Termo-Grasshopper Road
Termo, CA 96132
Score History (% Proficient)
YearELAMath
2019——
2021——
2022——
2023——
2024——
2026——
ELA Trend
since 2021
Math Trend
since 2021
School Board Members
NameRole / AreaTerm Exp.
Member—
Schools (1)
Juniper Ridge Elementary
PrincipalJason Waddell
Phone(530) 251-8938
Emailjwaddell@juniperridge.org
Websitewww.juniperridge.org
Address709-855 Termo-Grasshopper Rd., Termo, CA 96132
Richmond Elementary
ELA 49.61%Math 42.64%
District Leadership
SuperintendentBrian Boyer
Phone(530) 257-2338
Emailbboyer@richmondelementary.com
Websitehttps://www.richmondelementary.com
Address700-585 Richmond Road
East, Susanville, CA 96130
Score History (% Proficient)
YearELAMath
201968.0%51.33%
202175.97%51.16%
202264.57%51.97%
202350.0%43.44%
202453.28%35.25%
202649.61%42.64%
ELA Trend
▼ 18.39pp since 2019
Math Trend
▼ 8.69pp since 2019
School Board Members
NameRole / AreaTerm Exp.
Member—
Schools (1)
Richmond Elementary
PrincipalBrian Boyer
Phone(530) 257-2338
Emailbboyer@richmondelementary.com
Websitehttp://richmondelementary.com
Address700-585 Richmond Rd., East, Susanville, CA 96130
Shaffer Union Elementary
ELA 36.09%Math 16.37%
District Leadership
SuperintendentJoshua Blackburn
Phone(530) 254-6577
Emailjblackburn@shafferschool.com
Websitehttps://www.shafferschool.com
Address722-055 Highway 395 North
Litchfield, CA 96117
Score History (% Proficient)
YearELAMath
201938.41%30.43%
202125.0%32.5%
202229.37%23.81%
202330.07%24.48%
202441.03%26.11%
202636.09%16.37%
ELA Trend
▼ 2.32pp since 2019
Math Trend
▼ 14.06pp since 2019
School Board Members
NameRole / AreaTerm Exp.
Member—
Schools (1)
Shaffer Elementary
PrincipalJoshua Blackburn
Phone(530) 254-6577
Emailjblackburn@shafferschool.com
Websitewww.shafferschool.com
Address722-055 Highway 395 North, Litchfield, CA 96117
Susanville Elementary
ELA 39.18%Math 30.05%
District Leadership
SuperintendentJason Waddell
Phone(530) 257-8200
Emailjwaddell@susanvillesd.org
Websitehttps://www.susanvillesd.org
Address109 South Gilman Street
Susanville, CA 96130
Score History (% Proficient)
YearELAMath
201932.14%33.58%
202132.14%26.95%
202227.84%24.2%
202335.3%24.92%
202430.27%27.21%
202639.18%30.05%
ELA Trend
▲ 7.04pp since 2019
Math Trend
▼ 3.53pp since 2019
School Board Members
NameRole / AreaTerm Exp.
Member—
Schools (4)
Diamond View Middle
PrincipalDeanna Heimbigner
Phone(530) 257-5144
Emaildheimbigner@susanvillesd.org
Websitewww.diamondviewschool.org
Address850 Richmond Rd., Susanville, CA 96130
McKinley Elementary
PrincipalTraci Cockerill
Phone(530) 257-5161
Emailtcockerill@susanvillesd.org
Websitewww.mckinley-school.org
Address2005 Fourth St., Susanville, CA 96130
Meadow View
PrincipalCharlotte Klinock
Phone(530) 257-3000
Emailcklinock@susanvillesd.org
Websitewww.meadowviewschool.org
Address1200 Paiute Ln., Susanville, CA 96130
Thompson Peak Charter
PrincipalSherri Morgan
Phone(530) 257-7300
Emailsmorgan@longvalleycs.org
Websitelongvalleycs.org
Address995 Paiute Ln., Susanville, CA 96130
Westwood Unified
ELA 23.53%Math 20.93%
District Leadership
SuperintendentPaula Silva
Phone(530) 256-2311
Emailpsilva@westwoodusd.org
Websitehttps://www.westwoodusd.org
AddressFourth and Greenwood Streets
Westwood, CA 96137
Score History (% Proficient)
YearELAMath
201936.96%34.41%
202138.71%13.19%
202241.67%20.24%
202344.57%26.09%
202435.71%16.67%
202623.53%20.93%
ELA Trend
▼ 13.43pp since 2019
Math Trend
▼ 13.48pp since 2019
School Board Members
NameRole / AreaTerm Exp.
Member—
Schools (2)
Fletcher Walker Elementary
PrincipalPaula Silva
Phone(530) 256-3295
Emailpsilva@westwoodusd.org
Websitehttp://westwoodusd.org
AddressFourth and Greenwood Sts., Westwood, CA 96137
Westwood High
PrincipalPaula Silva
Phone(530) 256-2311
Emailpsilva@westwoodusd.org
Websitewww.westwoodusd.org
AddressFourth and Greenwood Sts., Westwood, CA 96137

What Your Donation Makes Possible

Your support empowers California families to reclaim transparency,
parental rights, and academic integrity in public schools.

Donate Now

Informed Parents, Informed Parents California, and OPT-OUT CA are dba’s of Informed Parents Silicon Valley, Inc., a Section 501(c)(3) charitable organization, EIN 87-2694564. Contributions are tax-deductible for income, gift, and estate taxes. Our IRS determination letter can be requested by emailing us at donations@ip-sv.org. Copyright 2026.  Privacy Policy  |  Terms of Service