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San Tan Charter School

Public, Charter, Alternative Grades K-12
407th
SchoolDigger Rank ?
of 909 Arizona Alternative Schools
Better than 55% of Arizona alternative schools
Summary

San Tan Charter School is an alternative public charter school serving grades K-12 with a total enrollment of 888 students in Gilbert, Arizona. The school is part of the San Tan Montessori School Inc. district.

San Tan Charter School has seen a steady increase in its four-year graduation rate, from 76.6% in 2021-2022 to 78.4% in 2023-2024, which is higher than the state average of 91.2% in 2021-2022. However, the school's dropout rate has fluctuated, ranging from 2.6% in 2020-2021 to 6.1% in 2022-2023, with a projected rate of 5.2% in 2023-2024, which is still higher than the state average. In terms of test scores, San Tan Charter School generally performs better than the state average in English Language Arts and Science, but lags behind in Mathematics, with an 11th-grade proficiency rate projected to be 35% in 2024-2025, compared to the state average of 30%.

When compared to nearby schools, San Tan Charter School generally performs better than the virtual and alternative schools in the area, such as Leading Edge Academy Online, GPS Global Academy, and Astravo Online Academy. However, it lags behind the performance of the higher-performing charter schools like BASIS Mesa and American Leadership Academy Gilbert North K-12. The school's consistent performance across grade levels and higher spending per student of $9,220 in 2018-2019 (higher than the state average) suggest a focus on providing a well-rounded educational experience for its students.

914
Students ?
41.5
Student/teacher ratio ?
22.4%
Free/discounted lunch ?
 3959 E Elliot Rd
       Gilbert, AZ  85234-4345

(480) 222-0811

District: San Tan Montessori School Inc.

Racial breakdown:

White:
59.3%
Hispanic:
24.3%
Two or more races:
7.7%
more
 See top rated Arizona elementary schools

 Compare San Tan Charter School to nearby alternative schools!
At a glance
Ranking trend: Holding steady — 60th percentile in 2022 → 60th in 2025
Strengths
Test scores above the Arizona average (41% vs 35% meeting standards)
91% graduate in 4 years — above the Arizona average (77%)
Above the Arizona median (55th percentile)
Worth a look
!Some student groups rank well below the school's overall statewide standing
!Large classes — about 42 students per teacher
Students meeting standards (2024-2025) ?
This school41%
District avg41%
Arizona avg35%
Elementary school
407th of 909
Arizona public elementary schools ?
Top 45%▼ down 15 pts since 2015
From top 30% (2015) to top 45% (2025)
See the entire ranking list of Arizona Elementary Schools →
SchoolDigger rating ?
Middle school
219th of 552
Arizona public middle schools ?
Top 40%▲ up 8 pts since 2015
From top 47% (2015) to top 40% (2025)
See the entire ranking list of Arizona Middle Schools →
SchoolDigger rating ?
High school
108th of 271
Arizona public high schools ?
Top 40%▼ down 15 pts since 2017
From top 25% (2017) to top 40% (2025)
See the entire ranking list of Arizona High Schools →
SchoolDigger rating ?
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Elementary school ranking
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankArizona percentileRating
202547.2407 of 90955.2%★★★☆☆
202446.6429 of 91253.0%★★★☆☆
202372.5312 of 124574.9%★★★★☆
202256.7372 of 100062.8%★★★☆☆
202152.7511 of 122658.3%★★★☆☆
201966.7350 of 103966.3%★★★☆☆
201861.0401 of 110963.8%★★★☆☆
201769.7328 of 110670.3%★★★★☆
201673.4275 of 107974.5%★★★★☆
201567.4282 of 95570.5%★★★★☆
201471.5310 of 107971.3%★★★★☆
201375.1266 of 115877.0%★★★★☆
201265.5381 of 114166.6%★★★☆☆
201169.6327 of 107569.6%★★★☆☆

African American

YearAvg scoreStatewide rankArizona percentileRating
202126.9759 of 89515.2%★☆☆☆☆

Asian

YearAvg scoreStatewide rankArizona percentileRating
202336.2213 of 31632.6%★★☆☆☆
202215.0264 of 2702.2%☆☆☆☆☆
202145.1404 of 62034.8%★★☆☆☆

English Language Learner

YearAvg scoreStatewide rankArizona percentileRating
202138.6940 of 9753.6%☆☆☆☆☆

Female

YearAvg scoreStatewide rankArizona percentileRating
202536.2356 of 58939.6%★★☆☆☆
202364.9377 of 121969.1%★★★☆☆
202249.1420 of 82449.0%★★☆☆☆
202150.9528 of 121956.7%★★★☆☆
201959.7324 of 86262.4%★★★☆☆
201857.2411 of 102359.8%★★★☆☆

Hispanic

YearAvg scoreStatewide rankArizona percentileRating
202351.3499 of 117057.4%★★★☆☆
202162.6347 of 119871.0%★★★★☆
201978.1140 of 70980.3%★★★★☆
201851.7379 of 91158.4%★★★☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankArizona percentileRating
202352.9450 of 111659.7%★★★☆☆
202238.9394 of 61836.2%★★☆☆☆
201848.5395 of 82051.8%★★★☆☆

Male

YearAvg scoreStatewide rankArizona percentileRating
202550.3286 of 62654.3%★★★☆☆
202449.1300 of 62852.2%★★★☆☆
202375.2272 of 121677.6%★★★★☆
202262.4275 of 83066.9%★★★☆☆
202149.8534 of 122056.2%★★★☆☆
201956.7342 of 85059.8%★★★☆☆
201857.1405 of 103260.8%★★★☆☆

Multi-racial

YearAvg scoreStatewide rankArizona percentileRating
202349.2313 of 61749.3%★★☆☆☆
202246.7253 of 44443.0%★★☆☆☆
202144.2547 of 102746.7%★★☆☆☆

Native American

YearAvg scoreStatewide rankArizona percentileRating
202128.5527 of 65419.4%★☆☆☆☆

Special Education

YearAvg scoreStatewide rankArizona percentileRating
202370.2135 of 82083.5%★★★★☆
202135.5754 of 120137.2%★★☆☆☆
201823.8347 of 41716.8%★☆☆☆☆

White

YearAvg scoreStatewide rankArizona percentileRating
202518.3406 of 46512.7%★☆☆☆☆
202418.9426 of 48612.3%★☆☆☆☆
202360.9366 of 102464.3%★★★☆☆
202242.7478 of 80040.3%★★☆☆☆
202144.0650 of 116144.0%★★☆☆☆
201940.7379 of 59536.3%★★☆☆☆
201838.7472 of 72034.4%★★☆☆☆
Middle school ranking
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankArizona percentileRating
202550.9219 of 55260.3%★★★☆☆
202457.2203 of 55063.1%★★★☆☆
202365.9234 of 85472.6%★★★★☆
202246.0284 of 60553.1%★★★☆☆
202153.2311 of 83262.6%★★★☆☆
201949.0266 of 60556.0%★★★☆☆
201844.3352 of 71150.5%★★★☆☆
201758.3235 of 69566.2%★★★☆☆
201667.8180 of 67773.4%★★★★☆
201545.3246 of 52152.8%★★★☆☆
201462.5249 of 69063.9%★★★☆☆
201368.4215 of 78772.7%★★★★☆
201254.8336 of 77256.5%★★★☆☆

African American

YearAvg scoreStatewide rankArizona percentileRating
202143.1262 of 57354.3%★★★☆☆

Asian

YearAvg scoreStatewide rankArizona percentileRating
202340.2153 of 24738.1%★★☆☆☆
202222.2177 of 1927.8%☆☆☆☆☆
202146.7237 of 40441.3%★★☆☆☆

Female

YearAvg scoreStatewide rankArizona percentileRating
202546.6182 of 39553.9%★★★☆☆
202445.2191 of 38650.5%★★★☆☆
202353.3292 of 80663.8%★★★☆☆
202237.2297 of 49439.9%★★☆☆☆
202157.9275 of 82066.5%★★★☆☆
201946.4228 of 46651.1%★★★☆☆
201839.1340 of 62445.5%★★☆☆☆

Hispanic

YearAvg scoreStatewide rankArizona percentileRating
202373.6134 of 76082.4%★★★★☆
202163.3193 of 80275.9%★★★★☆
201838.8306 of 54343.6%★★☆☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankArizona percentileRating
202351.1275 of 71761.6%★★★☆☆
201848.6215 of 50357.3%★★★☆☆

Male

YearAvg scoreStatewide rankArizona percentileRating
202550.7163 of 37957.0%★★★☆☆
202458.5125 of 37066.2%★★★☆☆
202369.2199 of 81075.4%★★★★☆
202144.2374 of 81854.3%★★★☆☆
201942.7216 of 43550.3%★★★☆☆
201848.5258 of 61758.2%★★★☆☆

Multi-racial

YearAvg scoreStatewide rankArizona percentileRating
202345.8216 of 38443.8%★★☆☆☆
202152.8262 of 65059.7%★★★☆☆

Native American

YearAvg scoreStatewide rankArizona percentileRating
202137.8220 of 39043.6%★★☆☆☆

Special Education

YearAvg scoreStatewide rankArizona percentileRating
202372.554 of 36385.1%★★★★☆
202152.2219 of 78972.2%★★★★☆
201859.044 of 17875.3%★★★★☆

White

YearAvg scoreStatewide rankArizona percentileRating
202519.7229 of 27717.3%★☆☆☆☆
202431.8205 of 28828.8%★☆☆☆☆
202350.6305 of 67554.8%★★★☆☆
202242.9279 of 44637.4%★★☆☆☆
202142.2435 of 78044.2%★★☆☆☆
201923.0265 of 33721.4%★☆☆☆☆
201826.5334 of 43623.4%★☆☆☆☆
High school ranking
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankArizona percentileRating
202553.1108 of 27160.1%★★★☆☆
202466.476 of 27071.9%★★★★☆
202343.4228 of 46951.4%★★★☆☆
202245.1187 of 46459.7%★★★☆☆
202148.7212 of 50958.3%★★★☆☆
201930.9175 of 28538.6%★★☆☆☆
201846.4163 of 42061.2%★★★☆☆
201762.7103 of 41675.2%★★★★☆

African American

YearAvg scoreStatewide rankArizona percentileRating
202261.773 of 30175.7%★★★★☆
202124.0202 of 30634.0%★★☆☆☆

Asian

YearAvg scoreStatewide rankArizona percentileRating
202229.6182 of 23823.5%★☆☆☆☆
202150.9107 of 23153.7%★★★☆☆

English Language Learner

YearAvg scoreStatewide rankArizona percentileRating
202144.629 of 31290.7%★★☆☆☆

Female

YearAvg scoreStatewide rankArizona percentileRating
202353.1168 of 40658.6%★★★☆☆
202241.1214 of 45653.1%★★★☆☆
202138.3259 of 49247.4%★★☆☆☆
201842.4165 of 35453.4%★★★☆☆

Hispanic

YearAvg scoreStatewide rankArizona percentileRating
202323.0307 of 37919.0%★☆☆☆☆
202238.3216 of 44151.0%★★★☆☆
202134.6285 of 47940.5%★★☆☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankArizona percentileRating
202384.523 of 34793.4%★★★★★
201849.994 of 25362.8%★★★☆☆

Male

YearAvg scoreStatewide rankArizona percentileRating
202550.894 of 22357.8%★★★☆☆
202460.478 of 21964.4%★★★☆☆
202331.2273 of 42936.4%★★☆☆☆
202250.5159 of 45565.1%★★★☆☆
202153.0183 of 49262.8%★★★☆☆
201937.0135 of 23843.3%★★☆☆☆
201847.3145 of 37060.8%★★★☆☆

Multi-racial

YearAvg scoreStatewide rankArizona percentileRating
202251.0124 of 28256.0%★★★☆☆

Special Education

YearAvg scoreStatewide rankArizona percentileRating
202359.043 of 17275.0%★★★★☆
202225.6379 of 3800.3%☆☆☆☆☆
202150.6142 of 42266.4%★★★☆☆

White

YearAvg scoreStatewide rankArizona percentileRating
202540.8103 of 17842.1%★★☆☆☆
202435.6113 of 18438.6%★★☆☆☆
202348.4180 of 37151.5%★★★☆☆
202236.6237 of 40942.1%★★☆☆☆
202143.1255 of 44843.1%★★☆☆☆
201937.1132 of 21739.2%★★☆☆☆
201837.3162 of 29144.3%★★☆☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Elementary school
Special Education (2023)84th percentile+9 vs school
Low Socio Economic Status (2023)60th percentile-15 vs school
Hispanic (2023)57th percentile-18 vs school
Male (2025)54th percentile~ school
Multi-racial (2023)49th percentile-26 vs school
Female (2025)40th percentile-16 vs school
Asian (2023)33rd percentile-42 vs school
Native American (2021)19th percentile-39 vs school
African American (2021)15th percentile-43 vs school
White (2025)13th percentile-43 vs school
English Language Learner (2021)4th percentile-55 vs school
Middle school
Special Education (2023)85th percentile+13 vs school
Hispanic (2023)82nd percentile+10 vs school
Low Socio Economic Status (2023)62nd percentile-11 vs school
Male (2025)57th percentile-3 vs school
African American (2021)54th percentile-8 vs school
Female (2025)54th percentile-6 vs school
Multi-racial (2023)44th percentile-29 vs school
Native American (2021)44th percentile-19 vs school
Asian (2023)38th percentile-35 vs school
White (2025)17th percentile-43 vs school
High school
Low Socio Economic Status (2023)93rd percentile+42 vs school
English Language Learner (2021)91st percentile+32 vs school
African American (2022)76th percentile+16 vs school
Special Education (2023)75th percentile+24 vs school
Female (2023)59th percentile+7 vs school
Male (2025)58th percentile~ school
Multi-racial (2022)56th percentile-4 vs school
White (2025)42nd percentile-18 vs school
Asian (2022)24th percentile-36 vs school
Hispanic (2023)19th percentile-32 vs school
By subject vs Arizona (2024-2025) ?
English Language Arts48%+8 vs state
Mathematics36%+3 vs state
Science35%+7 vs state

2.7
6 ratings · 4 written reviews
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What people are saying
by a parent
Thursday, January 16, 2020

Open Quote If I could leave a half of a star for this school, I would. I enrolled my kids in this school because of their professed excelled academic offerings. I took them out of the school after not even finishing one full academic year. It is also extremely expensive if you expect your child to participate in any after school activities or sports, and they do not have a band or orchestra program. And by expensive I mean thousands of dollars. Stick with Gilbert Public Schools. They are much better academically, for extra-curricular activities, and for the social and emotional needs of your child! Close Quote


by a parent
Friday, May 24, 2019

Open Quote School claims safety is their #1 priority but it most definitely is not me along with 7 other families I know are leaving due to the administrators inability to keep children safe. Also their communication is admittedly poor. Go elsewhere. Close Quote


by a parent
Friday, April 13, 2012

Open Quote We have been at STLC for two years and have been continually hopeful, but constantly disappointed. We hoped that the school would grow (it has almost doubled) and settle into a nice model with the needs of the students as a priority. That is not the case. The majority of teachers are doing the best they can and truly care about the kids, but the administration is clearly more focused on the business side of running the school rather than nurturing their founding vision. The parent involvement at this school is remarkable and the school would not be at all successful were it not for them. There is no certified school nurse, and the discipline policy is in need of work. Many of the after school clubs are taught by overworked teachers and parents. Promised programs like foreign languages and individualized learning have never truly occurred. We will be taking our children to another school next year. Close Quote


by a parent
Saturday, August 6, 2011

Open Quote This is an awesome school that focuses on every student's individuality! They are now serving 500 students Preschool - 7th grade. Love it! Close Quote





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Frequently Asked Questions about San Tan Charter School

Students at San Tan Charter School are 59% White, 24% Hispanic, 8% Two or more races, 5% African American, 3% Asian, 1% American Indian.

In the 2024-25 school year, 914 students attended San Tan Charter School.

San Tan Charter School ranks 407th of 909 Arizona alternative schools. SchoolDigger rates this school 3 stars out of 5.

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Latest Arizona data All new data »
2024–25 dropout ratesDec 2, 2025
2024–25 graduation ratesNov 7, 2025
2024–25 AASA & AzSCI test scoresOct 10, 2025
2023–24 dropout ratesJun 30, 2025


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Arizona 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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