Delta Sierra Middle

Summary:

Delta Sierra Middle is a public middle school located in Stockton, California, serving grades 7-8 with a total enrollment of 595 students. The school faces significant challenges, with high chronic absenteeism, low academic achievement, and a student population that is predominantly from low-income backgrounds.

Delta Sierra Middle has consistently ranked in the bottom quartile of California middle schools over the past several years, with a ranking between 2,094 and 2,683 out of around 2,700-2,800 middle schools. The school's academic performance, as measured by Smarter Balanced Assessments and CAST Science tests, is significantly below the state and Lodi Unified district averages. For example, in 2023-2024, only 20.3% of students were proficient or better in English Language Arts/Literacy, compared to 47.04% statewide. In Mathematics, the proficiency rate was just 9.93%, compared to 35.54% statewide. The school's performance is particularly low for certain student subgroups, ranking in the bottom 10% of California middle schools for Asian, White, and Multi-racial students in English Language Arts/Literacy and Mathematics.

When compared to other middle schools in the Lodi Unified district and nearby districts, Delta Sierra Middle consistently underperforms. For example, Lodi Middle, Millswood Middle, and Christa McAuliffe Middle all have significantly higher academic proficiency rates and lower chronic absenteeism than Delta Sierra Middle. The one notable exception is Elkhorn Middle School, which is located just 1.11 miles from Delta Sierra Middle and has consistently been one of the top-performing middle schools in the state, with over 90% of students proficient or better in English Language Arts and Mathematics.


Detail:

Public 7-8

 2255 Wagner Heights Rd.
       Stockton, CA  95209-4700


(209) 953-8510

District: Lodi Unified

SchoolDigger Rank:
2518th of 2,777 California Middle Schools

Per Pupil Expenditures:  $10,958 Help


Students who attend Delta Sierra Middle usually attend:

High:    Bear Creek High

Feeder schools for Delta Sierra Middle:

Elementary:    Creekside Elementary
    Oakwood Elementary
    Parklane Elementary
    Sutherland Elementary
    More...

Student/teacher ratio:  20.4 Help
Number of students:  576

Racial breakdown:

Hispanic:
39.6%
Asian:
27.8%
African American:
18.4%
more

Free/discounted lunch recipients:  94.6% Help


 See top rated California middle schools

 Compare Delta Sierra Middle to nearby middle schools!

Performance Trends
Help
Compare Details Delta Sierra Middle ranks worse than 90.7% of middle schools in California. It also ranks last among 6 ranked middle schools in the Lodi Unified School District. (See more...)
Help
Compare Details In 2024 the calculated Average Standard Score was 13.79. (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.
Student Body
Help
Compare Details Student population at Delta Sierra Middle is diverse. Racial makeup is: Hispanic (39.6%), Asian (27.8%), African American (18.4%). (See more...)
Help
Compare Details 94.6% of students are receiving a free or discounted lunch. This is the highest percentage in the Lodi Unified School District. (See more...)
Teachers
Help
Compare Details The student/teacher ratio at Delta Sierra Middle is 20.4. 3 middle schools in the Lodi Unified School District have better student/teacher ratios. (See more...)
Help
Compare Delta Sierra Middle employs 28.2 full-time teachers.
Finance
Help
Compare Details The average total spent per student at Delta Sierra Middle is $10,958. 3 middle schools in the Lodi Unified School District spend more per student.
Schooldigger 2024 Rankings:

Delta Sierra Middle:

SchoolDigger ranks Delta Sierra Middle 2518th of 2777 California public middle schools. (See Delta Sierra Middle in the ranking list.)

Middle School Test Score Ratings by Student Subgroup:


Multi-racial students:
English Language Learner students:
Special Education students:
Low Socio Economic Status students:
Female students:
Military Connected students:
Male students:
Asian students:
African American students:
Hispanic students:
White students:


Lodi Unified:

SchoolDigger ranks Lodi Unified 951st of 1568 California school districts. (See district ranking list.)


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Rank History for Delta Sierra Middle

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Compare

Rank History for all students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2004 26.49 1280th 1769 27.6%
2005 17.72 1508th 1777 15.1%
2006 17.71 1545th 1804 14.4%
2007 19.06 1666th 1999 16.7%
2008 16.51 1760th 2005 12.2%
2009 26.18 1571st 2063 23.8%
2010 25.23 1713th 2179 21.4%
2011 23.77 1807th 2236 19.2%
2012 30.44 1623rd 2259 28.2%
2013 23.08 1923rd 2379 19.2%
2015 12.24 2287th 2477 7.7%
2016 14.31 2222nd 2497 11.0%
2017 17.16 2137th 2508 14.8%
2018 17.40 2094th 2480 15.6%
2019 14.48 2399th 2715 11.6%
2021 12.23 846th 894 5.4%
2022 14.00 2492nd 2740 9.1%
2023 13.08 2588th 2802 7.6%
2024 13.79 2518th 2777 9.3%
See the entire list of California Middle School Rankings!

Rank History for Multi-racial students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2022 9.52 612th 665 8.0%
2023 8.87 617th 678 9.0%
2024 4.58 681st 699 2.6%
See the entire list of Best California Middle Schools for Multi-racial Students!

Rank History for English Language Learner students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 31.09 945th 1364 30.7%
2019 32.92 970th 1442 32.7%
2021 32.57 286th 363 21.2%
2022 47.05 550th 1540 64.3%
2023 26.13 1440th 1529 5.8%
2024 36.72 859th 1477 41.8%
See the entire list of Best California Middle Schools for English Language Learner Students!

Rank History for Special Education students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2023 25.01 1268th 1538 17.6%
2024 22.64 1367th 1550 11.8%
See the entire list of Best California Middle Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 20.92 1865th 2230 16.4%
2019 19.02 2054th 2369 13.3%
2021 17.16 667th 721 7.5%
2022 15.94 2254th 2458 8.3%
2023 17.37 2287th 2549 10.3%
2024 18.03 2253rd 2575 12.5%
See the entire list of Best California Middle Schools for Low Socio Economic Status Students!

Rank History for Female students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 15.84 1983rd 2262 12.3%
2019 16.15 2068th 2380 13.1%
2021 11.48 709th 738 3.9%
2022 13.35 2331st 2509 7.1%
2023 13.59 2368th 2547 7.0%
2024 16.21 2252nd 2546 11.5%
See the entire list of Best California Middle Schools for Female Students!

Rank History for Disabled students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 21.43 1267th 1369 7.5%
2019 23.43 1284th 1491 13.9%
2021 28.66 274th 354 22.6%
2022 20.80 1428th 1531 6.7%
See the entire list of Best California Middle Schools for Disabled Students!

Rank History for Military Connected students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2023 10.29 188th 197 4.6%
2024 8.18 182nd 191 4.7%
See the entire list of Best California Middle Schools for Military Connected Students!

Rank History for Male students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 17.91 1934th 2273 14.9%
2019 11.84 2257th 2407 6.2%
2021 14.35 716th 763 6.2%
2022 15.25 2279th 2527 9.8%
2023 13.17 2373rd 2558 7.2%
2024 11.59 2418th 2547 5.1%
See the entire list of Best California Middle Schools for Male Students!

Rank History for Asian students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 2.43 679th 700 3.0%
2019 1.67 731st 745 1.9%
2022 1.42 723rd 733 1.4%
2023 1.23 710th 718 1.1%
2024 1.14 730th 741 1.5%
See the entire list of Best California Middle Schools for Asian Students!

Rank History for African American students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 18.75 533rd 600 11.2%
2019 17.33 590th 643 8.2%
2022 18.98 563rd 637 11.6%
2023 22.46 517th 614 15.8%
2024 20.86 541st 626 13.6%
See the entire list of Best California Middle Schools for African American Students!

Rank History for Hispanic students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 16.40 1854th 2072 10.5%
2019 15.66 2007th 2213 9.3%
2022 15.06 2178th 2359 7.7%
2023 14.78 2203rd 2391 7.9%
2024 16.65 2122nd 2383 11.0%
See the entire list of Best California Middle Schools for Hispanic Students!

Rank History for White students at Delta Sierra Middle

Year Avg Standard Score Statewide Rank Total # Ranked Middle Schools CA State Percentile SchoolDigger Rating
2018 15.88 1292nd 1496 13.6%
2019 8.58 1500th 1602 6.4%
2022 4.34 1523rd 1555 2.1%
2023 5.49 1509th 1552 2.8%
2024 9.76 1420th 1535 7.5%
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.

Delta Sierra Middle Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
Subgroup: 





Data source: California Department of Education

Review counts

All ratings (Avg rating: 1)
0%

0%

0%

0%

100%

  

Reviews:
by a teacher
Monday, April 11, 2022

Open Quote the kids here are super rude and the campus is so dirty the staff had once found rats in one of the classrooms do not let your kids come to this school ! Close Quote



Enrollment information for Delta Sierra Middle

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Compare
Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1989 505 48 150 111 1 n/a n/a 0 815
1990 546 58 149 111 3 n/a n/a 0 867
1991 541 80 156 118 2 n/a n/a 0 897
1992 491 84 198 97 4 n/a n/a 0 874
1993 463 84 255 104 7 n/a n/a 0 913
1994 476 109 288 130 2 n/a n/a 0 1005
1995 397 96 338 137 6 n/a n/a 0 974
1996 397 96 338 137 6 n/a n/a 0 974
1997 405 106 327 171 4 n/a n/a 0 1013
1998 361 119 340 182 5 n/a n/a 0 1007
1999 364 118 296 163 9 n/a n/a 0 950
2000 324 130 254 154 12 n/a n/a 21 895
2001 329 140 290 194 5 n/a n/a 8 966
2002 262 175 318 248 12 n/a n/a 0 1015
2003 262 175 318 248 12 n/a n/a 0 1015
2004 255 187 334 236 11 n/a n/a 0 1023
2005 138 135 211 190 14 n/a n/a 1 689
2006 92 131 207 185 6 n/a n/a 1 622
2007 81 121 190 175 9 n/a n/a 1 577
2008 88 104 171 182 9 n/a n/a 0 554
2009 84 123 152 160 6 4 6 0 535
2010 84 123 126 5 6 5 141 0 490
2011 68 96 114 143 1 9 30 0 461
2012 62 81 108 157 4 8 12 0 432
2013 58 99 97 143 4 3 6 0 410
2014 43 125 91 130 1 3 15 0 408
2015 53 140 140 183 9 9 23 0 557
2016 53 111 176 215 5 10 26 0 596
2017 40 140 184 209 6 13 25 0 617
2018 41 161 197 221 4 8 24 0 656
2019 51 142 193 252 2 6 31 0 677
2020 43 122 183 233 1 12 43 0 637
2021 32 117 183 204 1 7 43 1 588
2022 37 105 163 232 2 9 30 1 579
2023 35 105 145 260 2 9 39 0 595
2024 39 106 160 228 2 6 34 1 576

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 Delta Sierra Middle

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1989 815 34.9 23.3 n/a
1990 867 41.9 20.6 n/a
1991 897 43.2 20.7 n/a
1992 874 43.9 19.9 23.6
1993 913 42.5 21.5 15.8
1994 1005 42.4 23.7 37.6
1995 974 46.5 20.9 44.7
1996 974 46.5 20.9 44.7
1997 1013 46.5 21.8 48.5
1998 1007 45.5 22.1 54.1
1999 950 43.0 22.1 44.6
2000 895 43.0 20.8 46.9
2001 966 46.0 21.0 45.5
2002 1015 53.0 19.2 49.8
2003 1015 53.0 19.2 49.8
2004 1023 48.9 20.9 55.5
2005 689 34.0 20.3 63.1
2006 622 32.0 19.4 63.6
2007 577 29.7 19.4 71.2
2008 554 34.6 16.0 72
2009 535 28.8 15.3 72.9
2010 490 26.6 18.3 71.4
2011 461 n/a n/a 82.2
2012 432 30.0 14.4 n/a
2013 410 27.7 14.8 84.9
2014 408 23.6 17.2 82.4
2015 557 32.0 17.4 85.6
2016 596 31.0 19.2 85.1
2017 617 29.4 20.9 87
2018 656 29.5 22.2 87
2019 677 31.1 21.7 79.2
2020 637 n/a n/a 78.5
2021 588 32.1 18.3 82.5
2022 579 31.8 18.2 78.2
2023 595 30.0 19.8 92.9
2024 576 28.2 20.4 94.6

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 Delta Sierra Middle

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1989 815 34.9 23.3 n/a
1990 867 41.9 20.6 n/a
1991 897 43.2 20.7 n/a
1992 874 43.9 19.9 23.6
1993 913 42.5 21.5 15.8
1994 1005 42.4 23.7 37.6
1995 974 46.5 20.9 44.7
1996 974 46.5 20.9 44.7
1997 1013 46.5 21.8 48.5
1998 1007 45.5 22.1 54.1
1999 950 43.0 22.1 44.6
2000 895 43.0 20.8 46.9
2001 966 46.0 21.0 45.5
2002 1015 53.0 19.2 49.8
2003 1015 53.0 19.2 49.8
2004 1023 48.9 20.9 55.5
2005 689 34.0 20.3 63.1
2006 622 32.0 19.4 63.6
2007 577 29.7 19.4 71.2
2008 554 34.6 16.0 72
2009 535 28.8 15.3 72.9
2010 490 26.6 18.3 71.4
2011 461 n/a n/a 82.2
2012 432 30.0 14.4 n/a
2013 410 27.7 14.8 84.9
2014 408 23.6 17.2 82.4
2015 557 32.0 17.4 85.6
2016 596 31.0 19.2 85.1
2017 617 29.4 20.9 87
2018 656 29.5 22.2 87
2019 677 31.1 21.7 79.2
2020 637 n/a n/a 78.5
2021 588 32.1 18.3 82.5
2022 579 31.8 18.2 78.2
2023 595 30.0 19.8 92.9
2024 576 28.2 20.4 94.6

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 Delta Sierra Middle

Help

YearTotal Expenditures Per Pupil
2018 $10,958

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

Impact of COVID-19 on Delta Sierra 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 2399th of 2715 Middle schoolsRanks 2588th of 2802 Middle schools
 4%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
7th Grade English Language Arts/Literacy (Delta Sierra Middle)28.322.3
 6%
   7th Grade English Language Arts/Literacy (Lodi Unified)44.140
 4.1%
   7th Grade English Language Arts/Literacy (California)51.447.4
 3.9%
7th Grade Mathematics (Delta Sierra Middle)13.47.6
 5.8%
   7th Grade Mathematics (Lodi Unified)30.227.9
 2.2%
   7th Grade Mathematics (California)37.933.2
 4.7%
8th Grade English Language Arts/Literacy (Delta Sierra Middle)26.723
 3.7%
   8th Grade English Language Arts/Literacy (Lodi Unified)40.435
 5.4%
   8th Grade English Language Arts/Literacy (California)49.445.7
 3.8%
8th Grade Mathematics (Delta Sierra Middle)9.55.4
 4.1%
   8th Grade Mathematics (Lodi Unified)26.120.6
 5.5%
   8th Grade Mathematics (California)36.629.9
 6.7%
8th Grade Science (Delta Sierra Middle)10.36.3
 4%
   8th Grade Science (Lodi Unified)24.719.8
 4.9%
   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 Students677595
 12.1%
African American142105
 26.1%
American Indian22
Asian193145
 24.9%
Hispanic252260
 3.2%
Pacific Islander69
 50%
White5135
 31.4%
Two or More Races3139
 25.8%
% Free/Discounted Lunch Recipients79.2%92.9%
 13.8%


Schools Near Delta Sierra Middle









Frequently Asked Questions about Delta Sierra Middle

Delta Sierra Middle ranks in the bottom 9.3% of California middle schools.

Students at Delta Sierra Middle are 40% Hispanic, 28% Asian, 18% African American, 7% White, 6% Two or more races, 1% Pacific Islander.

Students who attend Delta Sierra Middle usually go on to attend Bear Creek High

In the 2023-24 school year, 576 students attended Delta Sierra Middle.


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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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