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Best Public Schools in Zip Code 93239

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At a glance

Schools

1,047

Students

Districts

Top rankedJohn F. Kennedy Middle1044^th of 2,740 California middle schools

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Biggest riser

John F. Kennedy Middle up 160 spots statewide this year

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Summary:

Schools in ZIP code 93239 include two schools serving kindergarten through grade 8: John F. Kennedy Middle serves grades 6–8, while Kettleman City Elementary serves kindergarten–8. In 2025–26, John F. Kennedy’s all-grades proficiency was near or above state results, while Kettleman City’s was well below in all three subjects. The most important finding is that outcomes differ sharply between the two schools.

John F. Kennedy stands out as the stronger overall performer: 53% were proficient in ELA, 36% in math and 32% in science, compared with 29%, 8% and 8% at Kettleman City. The schools’ gaps were 23 percentage points in ELA, 28 in math and 24 in science. John F. Kennedy was 4 points above the state in ELA and 2 points below in math; Kettleman City was 20 points below the state in ELA and 31 below in math. One notable exception is Kettleman City’s seventh-grade ELA result: 63% proficient, versus 53% at John F. Kennedy and 51% statewide.

Recent results improved at John F. Kennedy in all three subjects, with gains of 2 points in ELA, 5 in math and 10 in science from 2024–25 to 2025–26. Kettleman City’s ELA fell 3 points and math fell 1, while science rose 2. SchoolDigger ranked John F. Kennedy at the 62nd percentile in 2025–26, compared with the 3rd percentile for Kettleman City. Their 2024–25 student–teacher ratios were similar: 19.9 and 20.4. The reported low-income measure, free/reduced lunch eligible, was 68% at John F. Kennedy and 96% at Kettleman City in 2024–25. These are contextual differences, not evidence of what caused the results; the schools serve different grade spans, and Kettleman City is smaller.

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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 Vaccination 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)							Vaccination (2024-25)		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 8th 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 6th Grade	Smarter Balanced Assessments English Language Arts/Literacy 7th Grade	Smarter Balanced Assessments English Language Arts/Literacy 8th 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 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	Vaccination: Kindergartners with all required immunizations	Vaccination: Exemption rate	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
John F. Kennedy Middle	Public	6-8	2521 Goodwin Ave.	Redwood City	93239	San Mateo County	Redwood City Elementary	No	(n/a)	No	(n/a)	(650) 482-2409	808	41	19.9	67.5%	113 (14.0%)	10 (1.2%)	623 (77.1%)	25 (3.1%)	0 (0.0%)	6 (0.7%)	31 (3.8%)	55.6	1044^th of 2740 public middle schools	61.9%		49	1204^th of 2761 public middle schools	56.4%	160		31.7	31.7				45.4	53.3	60.4	52.8				41.4	28.5	38.6	35.9			$23,573	$2,724	$20,849
Adelante Continuation High	Public	9-12	701 General Petroleum St.	Kettleman City	93239	Kings County	Reef-Sunset Unified	No	(n/a)	No	(n/a)	(559) 386-9081	0			—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Kettleman City Elementary	Public	K-8	701 General Petroleum St.	Kettleman City	93239	Kings County	Reef-Sunset Unified	No	(n/a)	No	(n/a)	(559) 386-5702	239	12	20.4	96.2%	0 (0.0%)	0 (0.0%)	239 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	8.7	5671^st of 5817 public elementary schools	2.5%		13.5	5388^th of 5857 public elementary schools	8.0%	283	6.7	9.7	8.2	19.2	23.8	20.0	19.2	63.2	38.7	29.4	19.2	9.5	0.0	3.9	15.8	3.2	7.8	≥ 95%		$24,935	$611	$24,324

Cities Near Zip Code 93239

City	Distance	# of Schools	Statewide Rank
Kettleman City	1.48 mi	2	846^th
Avenal	8.35 mi	7	865^th
Huron	13.86 mi	3	866^th
Stratford	14.48 mi	1	653^rd
Lemoore	17.1 mi	18	309^th

See the top CA California cities

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.