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Windsor Charter Academy Early College High School

Public, Charter Grades 9-12

20^th

SchoolDigger Rank ?

of 340 Colorado High Schools

Better than 94% of Colorado high schools

Summary

Windsor Charter Academy Early College High School in Windsor, CO, is a small public charter high school serving 435 students in grades 9–12 within the Weld County Reorganized School District No. Re-4, and it has earned five consecutive 5-star state ratings, ranking 20th out of 338 Colorado high schools (94th percentile) in 2025–2026.

The school's signature strength is math: 69% of 11th graders scored proficient on SAT Math, roughly double the district average (39%) and more than double the state average (32%), and well ahead of Windsor High School (34%) and Severance High School (30%). Reading and writing results are equally strong, with 89% proficiency on SAT Reading/Writing, topping Fossil Ridge High School (86%) and far exceeding the state's 60%. The school also posts a 100% graduation rate, zero dropouts for multiple years, and the best chronic absenteeism rate in the area (17.2% in 2024–2025, below the state's 28.4%). Its performance with low-income students ranks 4th in the entire state, showing the academic model works well across all student groups, even though only 17% of students qualify for free or reduced lunch.

The early college model appears to drive a high-expectations culture that delivers consistent results year after year. Windsor Charter dramatically outperforms its district's traditional high schools—Windsor High School sits at the 60th percentile and Severance High School at the 53rd. The one relative area for growth is science, where Fossil Ridge High School (69.6%) and Timnath Middle-High School (58.3%) exceed the school's 40.8% proficiency. Still, this is a stable, elite institution that compares favorably with the best high schools in northern Colorado.

435

Students ?

18.3

Student/teacher ratio ?

$16,041

Per pupil spending ?

17%

Free/discounted lunch ?

810 Automation Drive
Windsor, CO 80550-3125

(970) 833-5190

District: Weld County Reorganized School District No. Re-4

Racial breakdown:

White:

78.2%

Hispanic:

13.8%

Two or more races:

4.6%

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At a glance

▲ Ranking trend: Improving — 86th percentile in 2019 → 94th in 2026

Strengths

✓Test scores above the Colorado average (77% vs 48% meeting standards)

✓Ranks in the top 6% of Colorado high schools

✓100% graduate in 4 years — above the Colorado average (82%)

Students meeting standards (2025-2026) ?

This school77%

District avg55%

Colorado avg48%

20^th of 340

Colorado public high schools ?

Top 6%▲ up 8 pts since 2019

From top 14% (2019) to top 6% (2026)

See the entire ranking list of Colorado High Schools →

★★★★★

SchoolDigger rating ?

1^st of 3High Schools in the Weld County Reorganized School District No. Re-4

20^th of 114Weld County Reorganized School District No. Re-4 among Colorado districts

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

Middle school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Colorado percentile	Rating
2019	66.2	128 of 458	72.1%	★★★★☆
2018	68.5	104 of 418	75.1%	★★★★☆

High school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	91.7	20 of 340	94.1%	★★★★★
2025	94.5	12 of 328	96.3%	★★★★★
2024	95.2	9 of 349	97.4%	★★★★★
2023	90.1	26 of 349	92.6%	★★★★★
2022	88.3	20 of 221	91.0%	★★★★★
2021	85.8	22 of 210	89.5%	★★★★☆
2019	83.2	56 of 411	86.4%	★★★★☆

Female

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	92.9	10 of 246	95.9%	★★★★★
2025	93.2	9 of 247	96.4%	★★★★★
2024	92.5	12 of 257	95.3%	★★★★★
2023	88.0	24 of 254	90.6%	★★★★★
2022	89.2	21 of 257	91.8%	★★★★★
2021	89.0	21 of 239	91.2%	★★★★★

Hispanic

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	96.1	13 of 198	93.4%	★★★★★
2025	97.0	7 of 187	96.3%	★★★★★
2023	96.4	8 of 198	96.0%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	97.5	4 of 209	98.1%	★★★★★

Male

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	89.0	24 of 244	90.2%	★★★★★
2025	93.8	13 of 246	94.7%	★★★★★
2024	95.7	8 of 256	96.9%	★★★★★
2023	89.0	26 of 252	89.7%	★★★★★
2022	92.1	18 of 253	92.9%	★★★★★
2021	89.5	22 of 240	90.8%	★★★★★

White

Year	Avg score	Statewide rank	Colorado percentile	Rating
2026	87.2	16 of 221	92.8%	★★★★★
2025	88.4	14 of 209	93.3%	★★★★★
2024	90.9	9 of 229	96.1%	★★★★★
2023	78.8	42 of 234	82.1%	★★★★☆
2022	86.6	22 of 228	90.4%	★★★★★
2021	76.4	48 of 225	78.7%	★★★★☆

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)

High school

Low Socio Economic Status (2026)98th percentile+4 vs school

Female (2026)96th percentile~ school

Hispanic (2026)93rd percentile~ school

White (2026)93rd percentile~ school

Male (2026)90th percentile-4 vs school

By subject vs Colorado (2025-2026) ?

Reading and Writing86%+20 vs state

Mathematics75%+35 vs state

Science41%+16 vs state

★

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Schools Near Windsor Charter Academy Early College High School

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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 Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				PSAT10 Reading and Writing (2026)	PSAT10 Mathematics (2026)	PSAT9 Reading and Writing (2026)	PSAT9 Mathematics (2026)	SAT Reading and Writing (2026)	SAT Mathematics (2026)	CMAS English Language Arts (2026)				CMAS Math (2026)				CMAS Science (2026)		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 (2025)	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	PSAT10 Reading and Writing 10th Grade	PSAT10 Mathematics 10th Grade	PSAT9 Reading and Writing 9th Grade	PSAT9 Mathematics 9th Grade	SAT Reading and Writing 11th Grade	SAT Mathematics 11th Grade	CMAS English Language Arts 6th Grade	CMAS English Language Arts 7th Grade	CMAS English Language Arts 8th Grade	CMAS English Language Arts All Grades	CMAS Math 6th Grade	CMAS Math 7th Grade	CMAS Math 8th Grade	CMAS Math All Grades	CMAS Science 8th Grade	CMAS Science 11th Grade	Total
Windsor Charter Academy Early College High School	Public, Charter	9-12	810 Automation Drive	Windsor	80550	Weld County	Weld County Reorganized School District No. Re-4	Yes	No	No	No	(970) 833-5190	435	24	18.3	17.0%	340 (78.2%)	6 (1.4%)	60 (13.8%)	9 (2.1%)	0 (0.0%)	0 (0.0%)	20 (4.6%)	91.7	20^th of 340 public high schools	94.1%		94.5	12^th of 328 public high schools	96.3%	8	89.6	79.2	86.0	75.4	89.1	69.1										40.8	$16,041
Windsor High School	Public	9-12	1100 West Main Street	Windsor	80550	Weld County	Weld County Reorganized School District No. Re-4	No	No	No	No	(970) 686-8100	1,094	57	19.1	19.2%	840 (76.8%)	14 (1.3%)	192 (17.6%)	6 (0.5%)	4 (0.4%)	1 (0.1%)	37 (3.4%)	57.8	134^th of 340 public high schools	60.6%		51.7	142^nd of 328 public high schools	56.7%	8	71.3	39.3	70.7	43.2	63.1	33.5										33.5	$15,614
Severance High School	Public	9-12	1200 Hidden Valley Parkway	Severance	80550	Weld County	Weld County Reorganized School District No. Re-4	No	No	No	No	(970) 833-7100	943	53	17.8	28.3%	626 (66.4%)	15 (1.6%)	259 (27.5%)	13 (1.4%)	7 (0.7%)	0 (0.0%)	23 (2.4%)	48.3	161^st of 340 public high schools	52.6%		45.8	171^st of 328 public high schools	47.9%	10	65.9	34.1	63.1	39.9	58.7	30.1										31.9	$16,620
Colorado Early Colleges Windsor	Public, Charter	5-12	7640 Westgate Dr	Windsor	80528	Larimer County	State Charter School Institute	Yes	No	No	No	(970) 657-2860	196	15	13.1	26.0%	153 (78.1%)	1 (0.5%)	32 (16.3%)	4 (2.0%)	0 (0.0%)	0 (0.0%)	6 (3.1%)								(n/a)									30.4	27.3			34.8	38.6	36.4		$21,881
Northridge High School	Public	9-12	100 71st Avenue	Greeley	80634	Weld County	GreeleySchool District No. 6	No	No	No	No	(970) 348-5200	1,322	66	19.9	68.5%	232 (17.5%)	26 (2.0%)	1,011 (76.5%)	29 (2.2%)	3 (0.2%)	2 (0.2%)	19 (1.4%)	16.3	291^st of 340 public high schools	14.4%		14.4	287^th of 328 public high schools	12.5%	4	38.4	19.4	47.3	19.9	40.4	16.5										15.3	$17,282
Early College Academy	Public	9-12	5509 West 11th Street	Greeley	80631	Weld County	GreeleySchool District No. 6	No	No	No	No	(970) 348-6295	293	1	281.7	62.1%	81 (27.6%)	5 (1.7%)	194 (66.2%)	5 (1.7%)	0 (0.0%)	0 (0.0%)	8 (2.7%)	82	58^th of 340 public high schools	82.9%		81.1	53^rd of 328 public high schools	83.8%	5	83.3	62.5	81.4	62.7	72.4	48.3										41.1	$13,100
Fossil Ridge High School	Public	9-12	5400 Ziegler Road	Fort Collins	80528	Larimer County	Poudre School District R-1	No	No	No	No	(970) 488-6260	1,846	96	19.2	16.4%	1,404 (76.1%)	19 (1.0%)	216 (11.7%)	116 (6.3%)	2 (0.1%)	2 (0.1%)	85 (4.6%)	91.5	22^nd of 340 public high schools	93.5%		92.8	16^th of 328 public high schools	95.1%	6	88.0	59.7	91.1	73.1	86.1	59.8										69.6	$17,886
Union Colony Preparatory School	Public, Charter	6-12	2000 Clubhouse Drive	Greeley	80634	Weld County	GreeleySchool District No. 6	Yes	No	No	No	(970) 673-4546	333	16	20.2	61.3%	100 (30.0%)	8 (2.4%)	202 (60.7%)	9 (2.7%)	2 (0.6%)	6 (1.8%)	6 (1.8%)	48.5	159^th of 340 public high schools	53.2%		42.8	183^rd of 328 public high schools	44.2%	24	70.3	45.9	67.7	38.7	60.0	25.7	31.7	25.5	22.2	26.1	720.0	726.0	13.0	12.0	13.0	16.2	$13,856
Innovative Connections High School	Public	10-12	2020 Clubhouse Drive	Greeley	80634	Weld County	Centennial BOCES	No	No	No	No	(970) 352-7404	40	2	20.0		13 (32.5%)	0 (0.0%)	27 (67.5%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)																	$7,151
Centennial BOCES High School	Public	11-12	2020 Clubhouse Drive	Greeley	80634	Weld County	Centennial BOCES	No	No	No	No	(970) 356-7404	82	4	19.0		16 (19.5%)	0 (0.0%)	64 (78.0%)	1 (1.2%)	0 (0.0%)	0 (0.0%)	1 (1.2%)								(n/a)																	$6,664

Frequently Asked Questions about Windsor Charter Academy Early College High School

Is Windsor Charter Academy Early College High School a good school?

Yes. Windsor Charter Academy Early College High School ranks in the top 5.9% of Colorado high schools.

What district is Windsor Charter Academy Early College High School in?

Weld County Reorganized School District No. Re-4

How many students attend Windsor Charter Academy Early College High School?

In the 2024-25 school year, 435 students attended Windsor Charter Academy Early College High School.

What is the racial makeup of Windsor Charter Academy Early College High School?

Students at Windsor Charter Academy Early College High School are 78% White, 14% Hispanic, 5% Two or more races, 2% Asian, 1% African American.

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Latest Colorado data All new data »

2025–26 CMAS, PSAT10, PSAT9 & SAT test scoresAug 19, 2026

2024–25 school spending dataJun 13, 2026

2024–25 dropout rates & graduation ratesJan 13, 2026

2024–25 attendance dataAug 27, 2025

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