Beta You're viewing our redesigned school page. Prefer the classic layout?

Challenger Basic School

Public, Charter Grades K-6

52^nd

SchoolDigger Rank ?

of 909 Arizona Elementary Schools

Better than 94% of Arizona elementary schools

Summary

Challenger Basic School is a highly-ranked public charter elementary school in Gilbert, Arizona, serving students from kindergarten through 6th grade. With consistently strong academic performance, the school has earned a 5-star rating from SchoolDigger and has been ranked among the top 25 elementary schools in Arizona over the past decade, reaching as high as 6th out of 1,039 schools in the 2018-2019 school year.

Challenger Basic School's academic excellence is evident across all grade levels and subjects. In the 2024-2025 school year, the school's 3rd grade English Language Arts proficiency rate was 85%, compared to the state average of 36%, and its 6th grade Mathematics proficiency rate was 77%, far exceeding the state average of 29%. The school's 5th grade students also performed exceptionally well on the AzSCI/Science assessment, with a 54% proficiency rate compared to the 34% state average. Challenger Basic School's strong performance extends to various student subgroups, including female, male, Hispanic, and special education students, with the school's special education students ranking 11th out of 820 Arizona elementary schools in the 2022-2023 school year.

Compared to nearby public schools in the Gilbert Unified District and the Mesa Unified District, Challenger Basic School significantly outperforms its peers in academic achievement. For example, in the 2024-2025 school year, Challenger Basic School's 6th grade Mathematics proficiency rate was 77%, compared to 66% for Greenfield Elementary (Gilbert Unified) and 39% for Val Vista Lakes Elementary (Gilbert Unified). This exceptional performance may be attributed to the school's relatively high spending per student, which was $7,794 in the 2019-2020 school year and $7,986 in the 2018-2019 school year.

274

Students ?

13.0

Student/teacher ratio ?

Free/discounted lunch ?

1315 N Greenfield Rd
Gilbert, AZ 85234-2813

(480) 830-1750

District: Challenger Basic School Inc.

Racial breakdown:

White:

82.5%

Hispanic:

12.4%

Two or more races:

2.6%

See top rated Arizona elementary schools

Compare Challenger Basic School to nearby elementary schools!

At a glance

▬ Ranking trend: Holding steady — 98th percentile in 2015 → 94th in 2025

Strengths

✓Test scores above the Arizona average (73% vs 38% meeting standards)

✓Ranks in the top 6% of Arizona elementary schools

Students meeting standards (2024-2025) ?

This school73%

District avg73%

Arizona avg38%

52^nd of 909

Arizona public elementary schools ?

Top 6%▼ down 4 pts since 2015

From top 2% (2015) to top 6% (2025)

See the entire ranking list of Arizona Elementary Schools →

★★★★★

SchoolDigger rating ?

23^rd of 289Challenger Basic School Inc. among Arizona districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Arizona percentile	Rating
2025	92.9	52 of 909	94.3%	★★★★★
2024	93.7	49 of 912	94.6%	★★★★★
2023	97.0	23 of 1245	98.2%	★★★★★
2022	94.6	20 of 1000	98.0%	★★★★★
2021	97.3	19 of 1226	98.5%	★★★★★
2019	97.1	6 of 1039	99.4%	★★★★★
2018	95.7	24 of 1109	97.8%	★★★★★
2017	97.6	11 of 1106	99.0%	★★★★★
2016	96.0	21 of 1079	98.1%	★★★★★
2015	96.6	16 of 955	98.3%	★★★★★
2014	96.5	3 of 1079	99.7%	★★★★★
2013	94.1	8 of 1158	99.3%	★★★★★
2012	93.4	7 of 1141	99.4%	★★★★★
2011	92.7	26 of 1075	97.6%	★★★★★
2010	92.8	28 of 1090	97.4%	★★★★★
2009	91.9	26 of 1062	97.6%	★★★★★

Female

Year	Avg score	Statewide rank	Arizona percentile	Rating
2025	86.0	51 of 589	91.3%	★★★★★
2024	85.8	51 of 602	91.5%	★★★★★
2023	96.5	21 of 1219	98.3%	★★★★★
2022	95.9	3 of 824	99.6%	★★★★★
2021	96.7	15 of 1219	98.8%	★★★★★
2019	94.5	15 of 862	98.3%	★★★★★
2018	96.9	9 of 1023	99.1%	★★★★★

Hispanic

Year	Avg score	Statewide rank	Arizona percentile	Rating
2023	82.3	145 of 1170	87.6%	★★★★☆
2022	91.4	32 of 716	95.5%	★★★★★
2021	88.7	75 of 1198	93.7%	★★★★★

Male

Year	Avg score	Statewide rank	Arizona percentile	Rating
2025	89.2	42 of 626	93.3%	★★★★★
2024	89.3	43 of 628	93.2%	★★★★★
2023	96.3	27 of 1216	97.8%	★★★★★
2022	88.9	37 of 830	95.5%	★★★★★
2021	96.1	25 of 1220	98.0%	★★★★★
2019	95.7	10 of 850	98.8%	★★★★★
2018	92.8	59 of 1032	94.3%	★★★★★

Special Education

Year	Avg score	Statewide rank	Arizona percentile	Rating
2023	95.9	11 of 820	98.7%	★★★★★
2021	73.9	113 of 1201	90.6%	★★★★★

White

Year	Avg score	Statewide rank	Arizona percentile	Rating
2025	81.0	49 of 465	89.5%	★★★★☆
2024	80.9	54 of 486	88.9%	★★★★☆
2023	93.3	14 of 1024	98.6%	★★★★★
2022	87.6	36 of 800	95.5%	★★★★★
2021	91.8	17 of 1161	98.5%	★★★★★
2019	93.1	7 of 595	98.8%	★★★★★
2018	88.7	42 of 720	94.2%	★★★★★

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)

Special Education (2023)99th percentile~ school

Male (2025)93rd percentile~ school

Female (2025)91st percentile-3 vs school

White (2025)89th percentile-5 vs school

Hispanic (2023)88th percentile-11 vs school

By subject vs Arizona (2024-2025) ?

English Language Arts80%+40 vs state

Mathematics72%+35 vs state

Science54%+20 vs state

4.5

6 ratings · 4 written reviews

5★5

4★0

3★0

2★1

1★0

Rate Challenger Basic School

Have first-hand experience? A quick rating - and a sentence or two about what stands out (teachers, academics, safety, communication) - helps other families know what to expect.

Takes about a minute. We email you a link to verify your review - your address is never shown publicly.

Tap a star to rate

What people are saying

by a parent
Sunday, October 13, 2019

I love everything about this school. The teachers are amazing and I love that it is a small school so the teachers know all the kids. Close Quote

by a parent
Tuesday, April 9, 2019

Great, caring teachers! Close Quote

by a parent
Monday, June 21, 2010

My daughter has gone to Challenger for two years now. Her experiences in Kindergarten and First Grade have been above and beyond my expectations. She has learned the skills needed to be a hard working independent student. Her confidence level is high because she has the tools she needs to be successful. Her teachers have always been there to support her and guide her. I am absolutely thrilled with the education my daughter is receiving at Challenger. Close Quote

by a parent
Tuesday, January 19, 2010

We loved our first year at CBS. The fourth grade teacher was amazing...very disappointed in the lack of skills with the fifth grade teacher....she uses sarcasm with the students which is inappropriate.....we probably won't be staying....the husband/wife principles support the teachers no matter what the concern or problems. That can be very difficult. Our child has been experiencing serious anxiety and we may have to pull her out. :( Disappointing. But, loved the fourth grade there! Close Quote

Schools Near Challenger Basic School

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				AASA English Language Arts (2025)				AASA Mathematics (2025)				AzSCI Science (2025)	Per Pupil Expenditures (2022)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	AASA English Language Arts 3rd Grade	AASA English Language Arts 4th Grade	AASA English Language Arts 5th Grade	AASA English Language Arts 6th Grade	AASA Mathematics 3rd Grade	AASA Mathematics 4th Grade	AASA Mathematics 5th Grade	AASA Mathematics 6th Grade	AzSCI Science 5th Grade	Per Pupil Expenditures: Total	Personnel Spending from Federal Funds	Non-Personnel Spending from Federal Funds	Sub-total from Federal Funds	Personnel Spending from State and Local Funds	Non-Personnel from State and Local Funds	Sub-total Spending from State and Local Funds
Challenger Basic School	Public, Charter	K-6	1315 N Greenfield Rd	Gilbert	85234	Maricopa County	Challenger Basic School Inc.	Yes	(n/a)	No	No	(480) 830-1750	274	21	13.0		226 (82.5%)	0 (0.0%)	34 (12.4%)	3 (1.1%)	4 (1.5%)	0 (0.0%)	7 (2.6%)	92.9	52^nd of 909 public elementary schools	94.3%		93.7	49^th of 912 public elementary schools	94.6%	3	85.0	82.0	78.0	74.0	64.0	79.0	68.0	77.0	54.0		$00			$00
Pioneer Elementary School	Public	PK, KG-8	1535 N Greenfield Rd	Gilbert	85234	Maricopa County	Gilbert Unified District	No	(n/a)	No	Yes	(480) 892-2022	310	31	9.8		151 (48.7%)	14 (4.5%)	110 (35.5%)	8 (2.6%)	5 (1.6%)	2 (0.6%)	20 (6.5%)	71.5	239^th of 909 public elementary schools	73.7%		61	322^nd of 912 public elementary schools	64.7%	83	47.0	64.0	53.0	52.0	52.0	71.0	61.0	36.0	53.0	$9,686	$429	$514	$1,373	$8,864		$8,742
Great Hearts Academies - Archway Arete	Public, Charter	K-5	4525 E. Baseline Road	Gilbert	85234	Maricopa County	Archway Classical Academy Arete	Yes	(n/a)	No	Yes	(480) 222-4233	522	31	16.8		290 (55.6%)	15 (2.9%)	136 (26.1%)	35 (6.7%)	3 (0.6%)	2 (0.4%)	41 (7.9%)	88.1	85^th of 909 public elementary schools	90.6%		86.7	105^th of 912 public elementary schools	88.5%	20	68.0	73.0	64.0		67.0	70.0	67.0		52.0	$10,207	$413	$96	$922	$6,021	$3,677	$9,699
Val Vista Lakes Elementary School	Public	PK, KG-6	1030 N Blue Grotto Dr	Gilbert	85234	Maricopa County	Gilbert Unified District	No	(n/a)	No	No	(480) 926-6301	506	35	14.3		302 (59.7%)	12 (2.4%)	142 (28.1%)	6 (1.2%)	4 (0.8%)	3 (0.6%)	37 (7.3%)	75.3	201^st of 909 public elementary schools	77.9%		76.5	191^st of 912 public elementary schools	79.1%	10	44.0	83.0	68.0	78.0	45.0	58.0	53.0	39.0	61.0	$9,628	$500	$467	$1,467	$8,599	$61	$8,661
Sonoma Ranch Elementary School	Public	PK, KG-6	601 N Key Biscayne Dr	Gilbert	85234	Maricopa County	Gilbert Unified District	No	(n/a)	No	No	(480) 497-9343	466	39	11.8		254 (54.5%)	10 (2.1%)	153 (32.8%)	13 (2.8%)	10 (2.1%)	1 (0.2%)	25 (5.4%)	74.8	206^th of 909 public elementary schools	77.3%		58.7	342^nd of 912 public elementary schools	62.5%	136	51.0	60.0	52.0	74.0	65.0	56.0	44.0	68.0	44.0	$9,630	$187	$503	$877	$9,371		$8,939
Franklin Accelerated Academy - Brimhall Campus	Public	PK, KG-6	4949 E Southern Ave	Mesa	85206	Maricopa County	Mesa Unified District	No	(n/a)	No	No	(480) 472-2600	889	36	24.6		595 (66.9%)	22 (2.5%)	193 (21.7%)	21 (2.4%)	8 (0.9%)	1 (0.1%)	49 (5.5%)	95.6	26^th of 909 public elementary schools	97.1%		97	13^th of 912 public elementary schools	98.6%	13	59.0	81.0	73.0	83.0	75.0	83.0	89.0	80.0	71.0	$6,933	$51	$02	$104	$6,697	$183	$6,880
Greenfield Elementary School	Public	PK, KG-6	2550 E Elliot Rd	Gilbert	85234	Maricopa County	Gilbert Unified District	No	(n/a)	No	No	(480) 892-2801	919	51	18.0		726 (79.0%)	8 (0.9%)	128 (13.9%)	17 (1.8%)	1 (0.1%)	1 (0.1%)	38 (4.1%)	89.5	74^th of 909 public elementary schools	91.9%		89.4	75^th of 912 public elementary schools	91.8%	1	61.0	77.0	66.0	69.0	65.0	68.0	68.0	66.0	59.0	$5,430	$109	$185	$402	$5,002	$135	$5,137
Patterson Elementary School	Public	PK, KG-6	1211 E Guadalupe Rd	Gilbert	85234	Maricopa County	Gilbert Unified District	No	(n/a)	No	No	(480) 892-2803	518	35	14.7		305 (58.9%)	15 (2.9%)	132 (25.5%)	12 (2.3%)	9 (1.7%)	1 (0.2%)	44 (8.5%)	85.5	112^th of 909 public elementary schools	87.7%		88.5	86^th of 912 public elementary schools	90.6%	26	45.0	75.0	64.0	74.0	61.0	65.0	70.0	70.0	56.0	$7,810	$273	$647	$1,194	$7,019		$6,890
Carol Rae Ranch Elementary	Public	PK, KG-6	3777 E Houston Ave	Gilbert	85234	Maricopa County	Gilbert Unified District	No	(n/a)	No	No	(480) 507-1359	561	41	13.7		342 (61.0%)	14 (2.5%)	141 (25.1%)	20 (3.6%)	3 (0.5%)	3 (0.5%)	38 (6.8%)	72	235^th of 909 public elementary schools	74.1%		64	297^th of 912 public elementary schools	67.4%	62	51.0	60.0	60.0	71.0	47.0	53.0	44.0	59.0	48.0	$10,735	$230	$602	$1,062	$9,785	$118	$9,903
Johnson Elementary School	Public	PK, KG-6	3807 E Pueblo Ave	Mesa	85206	Maricopa County	Mesa Unified District	No	(n/a)	No	Yes	(480) 427-6800	562	40	14.2		279 (49.6%)	32 (5.7%)	194 (34.5%)	10 (1.8%)	2 (0.4%)	1 (0.2%)	44 (7.8%)	44.9	438^th of 909 public elementary schools	51.8%		45.1	438^th of 912 public elementary schools	52.0%		40.0	37.0	43.0	57.0	42.0	26.0	31.0	37.0	47.0	$9,469	$445	$153	$1,043	$8,554	$317	$8,871

Frequently Asked Questions about Challenger Basic School

What is the racial makeup of Challenger Basic School?

Students at Challenger Basic School are 82% White, 12% Hispanic, 3% Two or more races, 1% American Indian, 1% Asian.

Is Challenger Basic School a good school?

Yes. Challenger Basic School ranks in the top 5.7% of Arizona elementary schools.

How many students attend Challenger Basic School?

In the 2024-25 school year, 274 students attended Challenger Basic School.

What district is Challenger Basic School in?

Challenger Basic School Inc.

Rate Challenger Basic School!

Other helpful SchoolDigger resources...

Compare to nearby schools

AZArizona Elementary School Rankings

AZArizona District Rankings

Schools in Gilbert, AZ

Sign up for updates!

Be the first to know when there is an update for Challenger Basic School!

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.