Stone Bridge

Summary:

Stone Bridge is a public charter elementary school serving grades K-8 in Napa, California, with 267 students. The school is part of the Stone Bridge District, which is ranked 691 out of 1,568 districts in California and has a 3-star rating.

Stone Bridge's academic performance, as measured by proficiency rates on state assessments, is generally below the state and district averages across grade levels and subject areas. For example, in 2023-2024, the school's English Language Arts proficiency rates ranged from 20% to 81.48%, compared to the state average of 42.8% to 47.37%. In Mathematics, Stone Bridge's proficiency rates ranged from 20% to 70.37%, compared to the state average of 35.02% to 45.64%. The school also struggles with a high chronic absenteeism rate of 27.6% in 2022-2023, significantly higher than the state average.

Interestingly, the nearby schools in the Napa Valley Unified District generally perform better than Stone Bridge on academic measures, with higher proficiency rates in English Language Arts, Mathematics, and Science. Schools like Pueblo Vista Elementary and Vichy Elementary stand out, with proficiency rates often exceeding the state averages. However, some other nearby schools, such as McPherson Elementary and Shearer Elementary, also struggle with low academic performance, similar to Stone Bridge.


Detail:

Public, Charter K-8

 1019 2nd Ave.
       Napa, CA  94558-3938


(707) 252-5522

District: Stone Bridge District

SchoolDigger Rank:
3758th of 5,862 California Elementary Schools


Student/teacher ratio:  27.7 Help
Number of students:  277

Racial breakdown:

White:
67.1%
Hispanic:
17.0%
Two or more races:
8.7%
more

Free/discounted lunch recipients:  13.4% Help


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Performance Trends
Help
Compare Details Stone Bridge ranks worse than 64.1% of elementary schools in California. (See more...)
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Compare Details In 2024 the calculated Average Standard Score was 32.23. (See more...)
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Compare Details Stone Bridge ranks better than 74.6% of middle schools in California. (See more...)
Help
Compare Details In 2024 the calculated Average Standard Score was 68.67. (See more...)
Help
Chronic absenteeism in a 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.
Schooldigger 2024 Rankings:

Stone Bridge:

SchoolDigger ranks Stone Bridge 3758th of 5862 California public elementary schools. (See Stone Bridge in the ranking list.)

Elementary School Test Score Ratings by Student Subgroup:


Female students:
Male students:
White students:

SchoolDigger ranks Stone Bridge 704th of 2777 California public middle schools. (See Stone Bridge in the ranking list.)

Middle School Test Score Ratings by Student Subgroup:


Female students:
Male students:
White students:


Stone Bridge District:

SchoolDigger ranks Stone Bridge District 691st of 1568 California school districts. (See district ranking list.)


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Rank History for Stone Bridge

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Rank History for all elementary school students at Stone Bridge

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2019 74.53 1404th 5789 75.7%
2022 46.94 2698th 5883 54.1%
2023 28.94 3987th 5874 32.1%
2024 32.23 3758th 5862 35.9%
See the entire list of California Elementary School Rankings!

Rank History for elementary school Female students at Stone Bridge

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2019 82.93 928th 5492 83.1%
2022 47.51 2548th 5635 54.8%
2023 40.19 3009th 5617 46.4%
2024 48.01 2514th 5605 55.1%
See the entire list of Best California Elementary Schools for Female Students!

Rank History for elementary school Male students at Stone Bridge

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2019 67.20 1634th 5510 70.3%
2022 45.40 2685th 5663 52.6%
2023 24.60 4298th 5650 23.9%
2024 23.17 4436th 5636 21.3%
See the entire list of Best California Elementary Schools for Male Students!

Rank History for elementary school White students at Stone Bridge

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools CA State Percentile SchoolDigger Rating
2019 51.76 1503rd 2834 47.0%
2022 28.26 2063rd 2726 24.3%
2023 14.23 2363rd 2662 11.2%
2024 14.85 2330th 2647 12.0%
See the entire list of Best California Elementary Schools for White Students!

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

Rank History for Stone Bridge

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Rank History for all middle school students at Stone Bridge

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2019 86.98 333rd 2715 87.7%
2022 90.53 271st 2740 90.1%
2023 68.38 708th 2802 74.7%
2024 68.67 704th 2777 74.6%
See the entire list of California Elementary School Rankings!

Rank History for middle school Female students at Stone Bridge

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2019 88.67 254th 2380 89.3%
2022 86.73 304th 2509 87.9%
2023 77.00 493rd 2547 80.6%
2024 76.32 518th 2546 79.7%
See the entire list of Best California Elementary Schools for Female Students!

Rank History for middle school Male students at Stone Bridge

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2019 85.18 333rd 2407 86.2%
2023 53.18 979th 2558 61.7%
2024 60.90 799th 2547 68.6%
See the entire list of Best California Elementary Schools for Male Students!

Rank History for middle school White students at Stone Bridge

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2019 72.50 403rd 1602 74.8%
2022 75.59 314th 1555 79.8%
2023 51.17 721st 1552 53.5%
2024 54.11 680th 1535 55.7%
See the entire list of Best California Elementary 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.

Stone Bridge Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
State Scores:    
  
Subgroup: 









Data source: California Department of Education

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Enrollment information for Stone Bridge

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Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
2019 206 4 8 28 0 2 21 0 269
2020 202 4 9 34 0 1 22 0 272
2021 203 3 8 34 0 1 20 0 269
2022 195 2 10 36 0 0 26 0 269
2023 191 1 10 39 1 0 25 0 267
2024 186 4 14 47 0 1 24 1 277

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 Stone Bridge

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
2019 269 10.0 26.9 4.5
2020 272 n/a n/a 9.9
2021 269 10.0 26.9 14.9
2022 269 9.0 29.8 13.8
2023 267 10.0 26.7 12.7
2024 277 10.0 27.7 13.4

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 Stone Bridge

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
2019 269 10.0 26.9 4.5
2020 272 n/a n/a 9.9
2021 269 10.0 26.9 14.9
2022 269 9.0 29.8 13.8
2023 267 10.0 26.7 12.7
2024 277 10.0 27.7 13.4

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.

Kindergarten Immunization Rates

Stone Bridge

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Compare
YearCompletely ImmunizedMedical ExemptionConditionalPolioHepatitis BVaricellaDTPMMR
202071.4%23.8%4.8%71.4%71.4%73.8%71.4%73.8%
202181.0%16.7%2.4%83.3%83.3%81.0%83.3%81.0%
202278.1%7.3%9.8%85.4%92.7%92.7%92.7%92.7%

Data source: California Department of Public Health
Pre and Post Pandemic Data

Impact of COVID-19 on Stone Bridge

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 1404th of 5789 Elementary schoolsRanks 3987th of 5874 Elementary schools
 43.6%
Ranks 333rd of 2715 Middle schoolsRanks 708th of 2802 Middle schools
 13%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
5th Grade English Language Arts/Literacy (Stone Bridge)6027.6
 32.4%
   5th Grade English Language Arts/Literacy (California)51.746.7
 5%
5th Grade Mathematics (Stone Bridge)4013.8
 26.2%
   5th Grade Mathematics (California)3833.4
 4.6%
5th Grade Science (Stone Bridge)46.717.2
 29.4%
   5th Grade Science (California)31.731.9
 0.1%
6th Grade English Language Arts/Literacy (Stone Bridge)70.448.3
 22.1%
   6th Grade English Language Arts/Literacy (California)48.544.2
 4.3%
6th Grade Mathematics (Stone Bridge)51.920
 31.9%
   6th Grade Mathematics (California)38.533.2
 5.3%
7th Grade English Language Arts/Literacy (Stone Bridge)67.970.4
 2.5%
   7th Grade English Language Arts/Literacy (California)51.447.4
 3.9%
7th Grade Mathematics (Stone Bridge)60.763
 2.3%
   7th Grade Mathematics (California)37.933.2
 4.7%
8th Grade English Language Arts/Literacy (Stone Bridge)8050
 30%
   8th Grade English Language Arts/Literacy (California)49.445.7
 3.8%
8th Grade Mathematics (Stone Bridge)55.252.4
 2.8%
   8th Grade Mathematics (California)36.629.9
 6.7%
8th Grade Science (Stone Bridge)51.730
 21.7%
   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 Students269267
 0.7%
African American41
 75%
American Indian01
Asian810
 25%
Hispanic2839
 39.3%
Pacific Islander20
 100%
White206191
 7.3%
Two or More Races2125
 19%
% Free/Discounted Lunch Recipients4.5%12.7%
 8.3%


Schools Near Stone Bridge









Frequently Asked Questions about Stone Bridge

Students at Stone Bridge are 67% White, 17% Hispanic, 9% Two or more races, 5% Asian, 1% African American.

In the 2023-24 school year, 277 students attended Stone Bridge.

Stone Bridge ranks 3758th of 5862 California elementary schools. SchoolDigger rates this school 2 stars out of 5.


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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.

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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