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Rocketship Delta Prep

Q: Is Rocketship Delta Prep a good school?

Rocketship Delta Prep ranks 3628 th of 5804 California elementary schools. SchoolDigger rates this school 2 stars out of 5.

Public, Charter Grades K-5

3628^th

SchoolDigger Rank ?

of 5,804 California Elementary Schools

Better than 37% of California elementary schools

Summary

Rocketship Delta Prep is a K–5 elementary school in Antioch, serving 540 students in an area with several nearby elementary and charter schools. Its results are uneven: English language arts (ELA) and science remain below California’s averages, but math has become a clear strength. In 2025–26, 39% of students were proficient in math, just above the state’s 38%, and Delta Prep ranked first in math among seven comparable nearby K–5 schools.

Math is also well ahead of the Antioch Unified figure shown for comparison: 39% at Delta Prep versus 16% in the district, a 24-point gap. ELA is a relative strength locally but a weakness against the state: Delta Prep’s 32% proficiency was 17 points below California, yet 6 points above the nearby-school average and 4 points above the Antioch Unified figure. Science proficiency was 21%, 15 points below the state but 7 points above the nearby-school average; the school ranked second, behind Muir (John) Elementary. The Antioch Unified results are nearby references, not Delta Prep’s own district results; the school is in a different district.

Math rose 15 points over four years, moving from 11 points below the state to 1 point above it. Over the same period, ELA fell 3 points as the state improved, widening the gap by 6 points. Science gained 7 points overall but dropped 7 points in the latest year. For context, SchoolDigger ranked Delta Prep at the 37th percentile statewide in 2025–26, with 2 stars. Its student-teacher ratio was 36 in 2024–25, the highest among 10 nearby schools, whose average was 20.6; 56% of students were free/reduced lunch eligible that year, below the nearby-school average of 70%. SchoolDigger’s group rankings show a notably strong result for African American Students: the 83rd percentile in 2025–26, compared with the school’s overall 37th percentile. Its English Language Learner Students ranking fell 41 points, from the 88th percentile in 2021–22 to the 47th percentile in 2023–24.

540

Students ?

36.0

Student/teacher ratio ?

$30,076

Per pupil spending ?

55.7%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

1700 Cavallo Rd.
Antioch, CA 95110-1930

(877) 806-0920

District: Rocketship Delta Prep District

Racial breakdown:

Hispanic:

56.1%

African American:

34.8%

Two or more races:

3.3%

See top rated California elementary schools

Compare Rocketship Delta Prep to nearby elementary schools!

At a glance

▲ Ranking trend: Improving — 9th percentile in 2019 → 37th in 2026

Strengths

✓Ranking is trending up — up 28 percentile points since 2019

Worth a look

!Test scores below the California average (33% vs 42% meeting standards)

!High chronic absenteeism (32% vs 18% California)

!Some student groups rank well below the school's overall statewide standing

Students meeting standards (2025-2026) ?

This school33%

California avg42%

3,628^th of 5,804

California public elementary schools ?

Bottom 37%▲ up 29 pts since 2019

From bottom 9% (2019) to bottom 37% (2026)

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

640^th of 968Rocketship Delta Prep District among California 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	California percentile	Rating
2026	34.4	3628 of 5804	37.5%	★★☆☆☆
2025	31.4	3848 of 5857	34.3%	★★☆☆☆
2024	30.8	3874 of 5869	34.0%	★★☆☆☆
2023	29.1	3969 of 5859	32.3%	★★☆☆☆
2022	37.8	3240 of 5883	44.9%	★★☆☆☆
2019	14.6	5271 of 5789	8.9%	☆☆☆☆☆

African American

Year	Avg score	Statewide rank	California percentile	Rating
2026	73.1	87 of 506	82.8%	★★★★☆
2025	64.5	154 of 569	72.9%	★★★★☆
2024	57.5	190 of 593	68.0%	★★★☆☆
2023	56.5	231 of 661	65.1%	★★★☆☆
2022	75.3	105 of 663	84.2%	★★★★☆
2019	22.2	635 of 747	15.0%	★☆☆☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	41.9	1686 of 3162	46.7%	★★☆☆☆
2023	70.4	484 of 3245	85.1%	★★★★☆
2022	74.7	396 of 3311	88.0%	★★★★☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	32.3	3683 of 5569	33.9%	★★☆☆☆
2025	30.3	3831 of 5597	31.6%	★★☆☆☆
2024	28.7	3906 of 5612	30.4%	★★☆☆☆
2023	26.4	4099 of 5609	26.9%	★☆☆☆☆
2022	36.4	3240 of 5635	42.5%	★★☆☆☆
2019	23.9	4308 of 5492	21.6%	★☆☆☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	44.4	2716 of 5085	46.6%	★★☆☆☆
2025	44.4	2696 of 5107	47.2%	★★☆☆☆
2024	44.6	2636 of 5107	48.4%	★★☆☆☆
2023	39.2	2972 of 5087	41.6%	★★☆☆☆
2022	50.7	2163 of 5084	57.5%	★★★☆☆
2019	50.2	2275 of 4963	54.2%	★★★☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	39.1	3252 of 5412	39.9%	★★☆☆☆
2025	38.9	3274 of 5460	40.0%	★★☆☆☆
2024	36.8	3379 of 5517	38.8%	★★☆☆☆
2023	39.0	3137 of 5363	41.5%	★★☆☆☆
2022	54.2	2026 of 5264	61.5%	★★★☆☆
2019	17.9	4700 of 5173	9.1%	☆☆☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	38.2	3248 of 5590	41.9%	★★☆☆☆
2025	33.5	3581 of 5628	36.4%	★★☆☆☆
2024	33.6	3512 of 5643	37.8%	★★☆☆☆
2023	32.9	3551 of 5638	37.0%	★★☆☆☆
2022	39.9	3015 of 5663	46.8%	★★☆☆☆
2019	9.8	5355 of 5510	2.8%	☆☆☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2023	17.9	2273 of 2420	6.1%	☆☆☆☆☆

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)

African American (2026)83rd percentile+45 vs school

English Language Learner (2024)47th percentile+13 vs school

Hispanic (2026)47th percentile+9 vs school

Male (2026)42nd percentile+4 vs school

Low Socio Economic Status (2026)40th percentile~ school

Female (2026)34th percentile-4 vs school

Special Education (2023)6th percentile-26 vs school

By subject vs California (2025-2026) ?

Mathematics39%~ state avg

English Language Arts/Literacy32%-17 vs state

Science21%-15 vs state

★

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Schools Near Rocketship Delta Prep

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Ranking:

E Elementary M Middle H High A Alternative P Private

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

School													Students/Teachers											Ranking (2026)				Ranking (2025)				CAST Science (2026)		Smarter Balanced Assessments English Language Arts/Literacy (2026)				Smarter Balanced Assessments Mathematics (2026)				% Completely Immunized (2022)	% Polio (2022)	% Hepatitis B (2022)	% Varicella (2022)	% DTP (2022)	% MMR (2022)	Per Pupil Expenditures (2025)
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/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	CAST Science 5th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 3rd Grade	Smarter Balanced Assessments English Language Arts/Literacy 4th Grade	Smarter Balanced Assessments English Language Arts/Literacy 5th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics All Grades	% Completely Immunized KG	% Polio KG	% Hepatitis B KG	% Varicella KG	% DTP KG	% MMR KG	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Rocketship Delta Prep	Public, Charter	K-5	1700 Cavallo Rd.	Antioch	95110	Santa Clara County	Rocketship Delta Prep District	Yes	(n/a)	No	(n/a)	(877) 806-0920	540	15	36.0	55.7%	9 (1.7%)	188 (34.8%)	303 (56.1%)	13 (2.4%)	1 (0.2%)	8 (1.5%)	18 (3.3%)	34.4	3628^th of 5804 public elementary schools	37.5%		31.4	3848^th of 5857 public elementary schools	34.3%	220	21.2	21.2	27.9	31.6	35.8	31.9	45.3	38.2	33.8	39.0	94.6	97.7		97.7	96.9	95.4	$30,076	$28,268	$1,808
Kimball Elementary	Public	K-5	1310 August Way	Antioch	94509	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7415	450	22	20.0	84.9%	43 (9.6%)	93 (20.7%)	267 (59.3%)	15 (3.3%)	3 (0.7%)	5 (1.1%)	22 (4.9%)	24.8	4396^th of 5804 public elementary schools	24.3%		12.4	5468^th of 5857 public elementary schools	6.6%	1072	16.4	16.4	35.4	37.7	27.9	33.7	37.5	27.5	8.2	23.6	92.2			96.7	94.4	96.7	$33,341	$29,860	$3,481
Belshaw Elementary	Public	K-5	2801 Roosevelt Ln.	Antioch	94509	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7495	431	19	22.6	83.3%	55 (12.8%)	73 (16.9%)	257 (59.6%)	14 (3.2%)	2 (0.5%)	11 (2.6%)	19 (4.4%)	10.6	5558^th of 5804 public elementary schools	4.2%		9.4	5665^th of 5857 public elementary schools	3.3%	107	3.0	3.0	22.9	12.2	12.1	15.7	25.7	20.3	7.6	18.1	91.4	97.1		95.7	94.3		$29,424	$27,224	$2,200
Fremont Elementary	Public	K-5	1413 F St.	Antioch	94509	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7405	482	24	19.9	74.9%	30 (6.2%)	77 (16.0%)	335 (69.5%)	7 (1.5%)	8 (1.7%)	12 (2.5%)	13 (2.7%)	8.6	5663^rd of 5804 public elementary schools	2.4%		8.3	5717^th of 5857 public elementary schools	2.4%	54	7.0	7.0	22.9	14.8	12.3	16.8	20.0	9.9	3.5	11.5	92.1	96.1	97.4	97.4	93.4	97.4	$25,097	$22,782	$2,315
Marsh Elementary	Public	K-5	2304 G St.	Antioch	94509	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7410	522	24	21.6	81.4%	25 (4.8%)	128 (24.5%)	318 (60.9%)	19 (3.6%)	0 (0.0%)	14 (2.7%)	18 (3.4%)	7.6	5700^th of 5804 public elementary schools	1.8%		5.8	5814^th of 5857 public elementary schools	0.7%	114	6.7	6.7	14.5	17.3	16.7	16.2	14.3	12.0	5.6	10.3	90.0	93.0	96.0	96.0	93.0	96.0	$22,701	$20,110	$2,591
Antioch Charter Academy II	Public, Charter	K-8	1201 West Tenth St.	Antioch	94509	Contra Costa County	Antioch Charter Academy II District	Yes	(n/a)	No	(n/a)	(925) 755-1252	204	10	21.4	48.5%	49 (24.0%)	21 (10.3%)	95 (46.6%)	15 (7.4%)	3 (1.5%)	4 (2.0%)	17 (8.3%)								(n/a)
Sutter Elementary	Public	K-5	3410 Longview Rd.	Antioch	94509	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7425	450	21	20.9	75.8%	68 (15.1%)	66 (14.7%)	252 (56.0%)	39 (8.7%)	2 (0.4%)	3 (0.7%)	20 (4.4%)	18.9	4901^st of 5804 public elementary schools	15.6%		19.2	4905^th of 5857 public elementary schools	16.3%	4	16.9	16.9	24.0	30.9	32.4	29.1	28.0	14.8	16.9	19.8	98.1			98.1		98.1	$27,640	$25,434	$2,206
Antioch Charter Academy	Public, Charter	K-8	3325 Hacienda Way	Antioch	94509	Contra Costa County	Antioch Charter Academy District	Yes	(n/a)	No	(n/a)	(925) 755-7311	202	11	19.0	30.7%	47 (23.3%)	22 (10.9%)	83 (41.1%)	34 (16.8%)	0 (0.0%)	1 (0.5%)	15 (7.4%)								(n/a)
Mission Elementary	Public	K-5	1711 Mission Dr.	Antioch	94509	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7435	512	24	20.9	82.6%	40 (7.8%)	121 (23.6%)	242 (47.3%)	62 (12.1%)	5 (1.0%)	18 (3.5%)	24 (4.7%)	17.4	5018^th of 5804 public elementary schools	13.5%		21	4737^th of 5857 public elementary schools	19.1%	281	19.1	19.1	22.6	28.1	29.7	27.0	22.6	20.5	12.7	18.8	76.4	89.1	87.3	89.1	85.5	90.9	$24,043	$21,868	$2,175
Muir (John) Elementary	Public	K-5	615 Greystone Dr.	Antioch	94509	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7450	660	32	20.6	58.9%	54 (8.2%)	135 (20.5%)	368 (55.8%)	61 (9.2%)	5 (0.8%)	3 (0.5%)	34 (5.2%)	32.3	3787^th of 5804 public elementary schools	34.8%		26.2	4301^st of 5857 public elementary schools	26.6%	514	28.6	28.6	38.8	38.6	41.4	39.6	35.7	22.6	17.9	24.9	91.3	92.1	96.8	92.9	92.1	92.9	$24,720	$22,720	$2,000

Frequently Asked Questions about Rocketship Delta Prep

How many students attend Rocketship Delta Prep?

In the 2024-25 school year, 540 students attended Rocketship Delta Prep.

What is the racial makeup of Rocketship Delta Prep?

Students at Rocketship Delta Prep are 56% Hispanic, 35% African American, 3% Two or more races, 2% Asian, 2% White, 1% Pacific Islander.

What district is Rocketship Delta Prep in?

Rocketship Delta Prep District

Is Rocketship Delta Prep a good school?

Rocketship Delta Prep ranks 3628^th of 5804 California elementary schools. SchoolDigger rates this school 2 stars out of 5.

Rate Rocketship Delta Prep!

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Latest California data All new data »

2025–26 attendance data, dropout rates & graduation ratesNewOct 15, 2026

2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresNewOct 15, 2026

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

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.