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Harold William Kolb

Public Grades K-5

140^th

SchoolDigger Rank ?

of 5,857 California Elementary Schools

Better than 98% of California elementary schools

Summary

Harold William Kolb Elementary is a top-tier K-5 public school serving 696 students in the highly-regarded Dublin Unified district, consistently ranking in the top 2-4% of all California elementary schools.

The school demonstrates strong, consistent academic performance, with over 83% of students proficient in English and 85% in math, significantly exceeding state averages. While its test scores are slightly below some immediate neighbors like J.M. Amador Elementary and Cottonwood Creek, Kolb serves a more economically diverse population and shows remarkable effectiveness in supporting these students, ranking in the 94th percentile for low socioeconomic status students. The school has shown an impressive decade-long trajectory of improvement and maintains excellent outcomes even with a mid-range per-student spending level compared to other schools in the area.

Notable strengths include exceptional performance in upper elementary grades and strong support for special education students. The school has also successfully reduced chronic absenteeism since the pandemic. Within the context of the high-performing Dublin Unified district, where all schools rank highly, Kolb stands out for its consistency, its effective use of resources, and its ability to deliver elite education across its diverse student community.

696

Students ?

26.1

Student/teacher ratio ?

$19,976

Per pupil spending ?

15.4%

Free/discounted lunch ?

3150 Palermo Way
Dublin, CA 94568-7326

(925) 551-4000

District: Dublin Unified

Students who attend Harold William Kolb usually attend:

Middle:	Eleanor Murray Fallon
High:	Dublin High

Racial breakdown:

Asian:

77.7%

White:

8.2%

Hispanic:

6.5%

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Compare Harold William Kolb to nearby elementary schools!

At a glance

▲ Ranking trend: Improving — 88th percentile in 2013 → 98th in 2025

Strengths

✓Test scores above the California average (82% vs 41% meeting standards)

✓Ranks in the top 2% of California elementary schools

✓Ranking is trending up — up 10 percentile points since 2013

Worth a look

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

!Large classes — about 26 students per teacher

Students meeting standards (2024-2025) ?

This school82%

District avg74%

California avg41%

140^th of 5,857

California public elementary schools ?

Top 2%▼ down 1 pts since 2015

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

3^rd of 8Elementary Schools in the Dublin Unified

140^th of 1,543Dublin Unified 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
2025	97.2	140 of 5857	97.6%	★★★★★
2024	98.5	53 of 5869	99.1%	★★★★★
2023	96.3	247 of 5859	95.8%	★★★★★
2022	98.5	55 of 5883	99.1%	★★★★★
2019	97.7	95 of 5789	98.4%	★★★★★
2018	96.8	162 of 5662	97.1%	★★★★★
2017	97.0	174 of 5692	96.9%	★★★★★
2016	96.0	236 of 5614	95.8%	★★★★★
2015	98.1	91 of 5611	98.4%	★★★★★
2013	86.9	655 of 5530	88.2%	★★★★☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	75.6	280 of 1203	76.7%	★★★★☆
2024	80.2	159 of 1205	86.8%	★★★★☆
2023	70.0	402 of 1190	66.2%	★★★☆☆
2022	79.0	176 of 1154	84.7%	★★★★☆
2019	77.8	182 of 1149	84.2%	★★★★☆
2018	77.0	214 of 1071	80.0%	★★★★☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2018	93.2	124 of 3246	96.2%	★★★★★

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	95.6	210 of 5597	96.2%	★★★★★
2024	98.3	35 of 5612	99.4%	★★★★★
2023	95.7	229 of 5609	95.9%	★★★★★
2022	97.5	96 of 5635	98.3%	★★★★★
2019	97.3	66 of 5492	98.8%	★★★★★
2018	95.6	184 of 5413	96.6%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	91.4	308 of 5460	94.4%	★★★★★
2023	46.8	2576 of 5363	52.0%	★★★☆☆
2018	95.3	123 of 5084	97.6%	★★★★★

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	97.4	84 of 5628	98.5%	★★★★★
2024	97.7	79 of 5643	98.6%	★★★★★
2023	95.5	262 of 5638	95.4%	★★★★★
2022	98.4	44 of 5663	99.2%	★★★★★
2019	97.0	120 of 5510	97.8%	★★★★★
2018	96.2	171 of 5431	96.9%	★★★★★

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2018	59.3	160 of 339	52.8%	★★★☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2023	98.0	59 of 2420	97.6%	★★★★★

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	83.4	292 of 2598	88.8%	★★★★☆
2024	91.1	66 of 2651	97.5%	★★★★★
2023	56.0	1259 of 2661	52.7%	★★★☆☆
2019	81.6	414 of 2834	85.4%	★★★★☆
2018	74.9	650 of 2737	76.3%	★★★★☆

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)

Male (2025)99th percentile~ school

Special Education (2023)98th percentile~ school

Female (2025)96th percentile~ school

English Language Learner (2018)96th percentile~ school

Low Socio Economic Status (2025)94th percentile-3 vs school

White (2025)89th percentile-9 vs school

Asian (2025)77th percentile-21 vs school

Multi-racial (2018)53rd percentile-44 vs school

By subject vs California (2024-2025) ?

Mathematics86%+48 vs state

English Language Arts/Literacy84%+35 vs state

Science67%+35 vs state

★

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Schools Near Harold William Kolb

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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 (2025)				Ranking (2024)				CAST Science (2025)			Smarter Balanced Assessments English Language Arts/Literacy (2025)							Smarter Balanced Assessments Mathematics (2025)							% Completely Immunized (2022)	% Varicella (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/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	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	% Completely Immunized KG	% Varicella KG	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Harold William Kolb	Public	K-5	3150 Palermo Way	Dublin	94568	Alameda County	Dublin Unified	No	(n/a)	No	(n/a)	(925) 551-4000	696	27	26.1	15.4%	57 (8.2%)	17 (2.4%)	45 (6.5%)	541 (77.7%)	0 (0.0%)	0 (0.0%)	36 (5.2%)	97.2	140^th of 5857 public elementary schools	97.6%		98.5	53^rd of 5869 public elementary schools	99.1%	87	67.3		67.3	75.0	89.3	86.5				83.6	85.3	84.3	87.5				85.6			$19,976	$19,200	$776
John Green Elementary	Public	K-5	3300 Antone Way	Dublin	94568	Alameda County	Dublin Unified	No	(n/a)	No	(n/a)	(925) 833-4200	661	27	24.6	7.9%	43 (6.5%)	11 (1.7%)	26 (3.9%)	554 (83.8%)	0 (0.0%)	1 (0.2%)	26 (3.9%)	95.4	293^rd of 5857 public elementary schools	95.0%		97	165^th of 5869 public elementary schools	97.2%	128	68.8		68.8	73.8	74.6	79.8				76.2	81.7	81.4	77.0				79.9			$23,181	$21,614	$1,567
Cottonwood Creek	Public	K-8	2400 Central Pkwy.	Dublin	94568	Alameda County	Dublin Unified	No	(n/a)	No	(n/a)	(925) 833-3333	1,023	45	22.9	13.0%	41 (4.0%)	8 (0.8%)	34 (3.3%)	908 (88.8%)	0 (0.0%)	0 (0.0%)	32 (3.1%)	97.8	85^th of 5857 public elementary schools	98.5%		98.9	23^rd of 5869 public elementary schools	99.6%	62	69.2	83.3	76.6	78.1	85.7	86.4	90.2	95.4	92.0	87.9	86.1	90.4	80.8	88.7	86.5	87.7	86.8	98.2	98.2	$19,557	$18,556	$1,001
J. M. Amador Elementary	Public	K-5	2100 East Cantara Dr.	Dublin	94568	Alameda County	Dublin Unified	No	(n/a)	No	(n/a)	(925) 307-1950	909	36	25.2	7.2%	46 (5.1%)	8 (0.9%)	25 (2.8%)	785 (86.4%)	0 (0.0%)	0 (0.0%)	45 (5.0%)	98.7	26^th of 5857 public elementary schools	99.6%		98.8	29^th of 5869 public elementary schools	99.5%	3	79.9		79.9	87.9	86.7	90.5				88.5	96.8	87.3	86.8				90.1			$19,440	$18,170	$1,270
James Dougherty Elementary	Public	K-5	5301 Hibernia Dr.	Dublin	94568	Alameda County	Dublin Unified	No	(n/a)	No	(n/a)	(925) 803-4444	856	36	23.7	17.1%	80 (9.3%)	24 (2.8%)	85 (9.9%)	591 (69.0%)	1 (0.1%)	0 (0.0%)	75 (8.8%)	92.9	483^rd of 5857 public elementary schools	91.8%		95.5	302^nd of 5869 public elementary schools	94.9%	181	61.0		61.0	82.2	75.0	68.0				75.4	85.6	79.9	58.0				75.7			$21,236	$20,330	$906
Henry P. Mohr Elementary	Public	K-5	3300 Dennis Dr.	Pleasanton	94588	Alameda County	Pleasanton Unified	No	(n/a)	No	(n/a)	(925) 426-4256	492	20	24.8	9.6%	63 (12.8%)	8 (1.6%)	17 (3.5%)	370 (75.2%)	1 (0.2%)	1 (0.2%)	31 (6.3%)	97.9	79^th of 5857 public elementary schools	98.7%		97.8	91^st of 5869 public elementary schools	98.4%	12	64.5		64.5	87.3	85.2	88.2				86.9	93.1	89.9	89.3				90.6			$16,698	$16,472	$226
Fairlands Elementary	Public	K-5	4151 West Las Positas Blvd.	Pleasanton	94588	Alameda County	Pleasanton Unified	No	(n/a)	No	(n/a)	(925) 426-4210	670	26	25.7	10.6%	83 (12.4%)	9 (1.3%)	51 (7.6%)	485 (72.4%)	5 (0.7%)	0 (0.0%)	37 (5.5%)	92	548^th of 5857 public elementary schools	90.6%		95.2	325^th of 5869 public elementary schools	94.5%	223	52.5		52.5	66.7	76.3	72.0				71.7	83.1	80.7	73.3				79.0			$15,232	$15,006	$226
Alisal Elementary	Public	K-5	1454 Santa Rita Rd.	Pleasanton	94566	Alameda County	Pleasanton Unified	No	(n/a)	No	(n/a)	(925) 426-4200	544	23	23.6	8.8%	138 (25.4%)	9 (1.7%)	60 (11.0%)	289 (53.1%)	3 (0.6%)	1 (0.2%)	44 (8.1%)	85.9	886^th of 5857 public elementary schools	84.9%		81.5	1091^st of 5869 public elementary schools	81.4%	205	53.5		53.5	70.0	63.0	64.4				65.4	69.9	65.6	63.4				65.9			$16,742	$16,516	$226
Walnut Grove Elementary	Public	K-5	1999 Harvest Rd.	Pleasanton	94566	Alameda County	Pleasanton Unified	No	(n/a)	No	(n/a)	(925) 426-4250	629	23	26.8	5.1%	155 (24.6%)	6 (1.0%)	30 (4.8%)	385 (61.2%)	1 (0.2%)	0 (0.0%)	52 (8.3%)	97.8	87^th of 5857 public elementary schools	98.5%		96.7	196^th of 5869 public elementary schools	96.7%	109	79.8		79.8	83.6	84.4	85.4				84.4	90.2	81.7	80.5				84.2			$15,994	$15,768	$226
Donlon Elementary	Public	K-5	4150 Dorman Rd.	Pleasanton	94588	Alameda County	Pleasanton Unified	No	(n/a)	No	(n/a)	(925) 426-4220	700	29	24.1	10.4%	107 (15.3%)	22 (3.1%)	58 (8.3%)	470 (67.1%)	1 (0.1%)	3 (0.4%)	39 (5.6%)	94.1	390^th of 5857 public elementary schools	93.3%		96.8	181^st of 5869 public elementary schools	96.9%	209	65.0		65.0	73.4	78.3	74.6				75.5	76.8	75.7	75.2				75.8	98.1	98.1	$16,052	$15,826	$226

Frequently Asked Questions about Harold William Kolb

Is Harold William Kolb a good school?

Yes! Harold William Kolb is one of the best elementary schools in the state. It ranks 140^th of 5857 California elementary schools.

What schools do graduates of Harold William Kolb attend?

Students who attend Harold William Kolb usually go on to attend:

Middle : Eleanor Murray Fallon
High : Dublin High

What is the racial makeup of Harold William Kolb?

Students at Harold William Kolb are 78% Asian, 8% White, 6% Hispanic, 5% Two or more races, 2% African American.

How many students attend Harold William Kolb?

In the 2024-25 school year, 696 students attended Harold William Kolb.

What district is Harold William Kolb in?

Dublin Unified

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Latest California data All new data »

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

2024–25 CSA Spanish test scoresDec 22, 2025

2024–25 dropout rates & graduation ratesNov 14, 2025

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.