Top 100 charter schools in Colorado (2025)

Publicly funded charter schools. Ranked by the Success Index (US) from official American data; 100 schools shown.

#	School	Sector	Success Index (US)	Key result	Students
1	The Classical Academy High School Colorado Springs · High · Grades 9–12	Charter	88.7 Top 5%	72% Math proficiency	616
2	Parker Core Knowledge Parker · Elementary · Grades K–8	Charter	88.6 Top 5%	83% Math proficiency	705
3	Summit Middle Charter School Boulder · Middle · Grades 6–8	Charter	86.8 Top 5%	82% Math proficiency	366
4	The Vanguard School (High) Colorado Springs · High · Grades 9–12	Charter	86.6 Top 5%	24.8% Free/reduced-price lunch	303
5	Littleton Academy Littleton · Elementary · Grades K–8	Charter	85.5 Top 5%	64% Math proficiency	455
6	Platte River Charter Academy Highlands Ranch · Elementary · Grades PK–8	Charter	83.5 Top 10%	66% Math proficiency	475
7	The Connect Charter School Pueblo · Middle · Grades 6–8	Charter	82.7 Top 10%	77% Math proficiency	252
8	French American School of Denver Denver · Elementary · Grades K–6	Charter	81.6 Top 10%	20% Free/reduced-price lunch	230
9	Jefferson Academy Secondary Broomfield · High · Grades 7–12	Charter	81.3 Top 10%	72% Math proficiency	696
10	Two Rivers Community School Glenwood Springs · Elementary · Grades K–8	Charter	79.0 Top 25%	30.3% Free/reduced-price lunch	390
11	Cherry Creek Charter Academy Greenwood Village · Elementary · Grades K–8	Charter	78.1 Top 25%	68% Math proficiency	594
12	Challenge to Excellence Charter School Parker · Elementary · Grades K–8	Charter	76.5 Top 25%	68% Math proficiency	551
13	Colorado Early Colleges Douglas County Englewood · High · Grades 9–12	Charter	76.4 Top 25%	67% Math proficiency	1,035
14	Prospect Academy Arvada · Middle · Grades 4–8	Charter	76.0 Top 25%	22.3% Free/reduced-price lunch	94
15	DSST: Cedar Middle School Denver · Middle · Grades 6–8	Charter	75.9 Top 25%	65% Math proficiency	485
16	Eagle County Charter Academy Edwards · Elementary · Grades K–8	Charter	75.5 Top 25%	56% Math proficiency	360
17	The Classical Academy Charter Colorado Springs · Elementary · Grades K–6	Charter	75.2 Top 25%	59% Math proficiency	1,909
18	Ben Franklin Academy Highlands Ranch · Elementary · Grades PK–8	Charter	74.6 Top 25%	60% Math proficiency	956
19	Colorado Early Colleges Windsor Windsor · High · Grades 6–12	Charter	74.1 Top 25%	26% Free/reduced-price lunch	196
20	Monument Charter Academy Monument · Elementary · Grades PK–5	Charter	73.8 Top 25%	10% Free/reduced-price lunch	612
21	Denver Language School Denver · Elementary · Grades K–8	Charter	73.7 Top 25%	68% Math proficiency	930
22	North Routt Community Charter School Clark · Elementary · Grades PK–8	Charter	73.1 Top 25%	57% Math proficiency	82
23	Colorado Skies Academy Englewood · Middle · Grades 6–8	Charter	72.8 Top 25%	33.3% Free/reduced-price lunch	90
24	Windsor Charter Academy Elementary School Windsor · Elementary · Grades K–5	Charter	72.4 Top 25%	59% Math proficiency	780
25	Academy Charter School Castle Rock · Elementary · Grades PK–8	Charter	72.0 Top 25%	53% Math proficiency	581
26	DSST: Cedar High School Denver · High · Grades 9–12	Charter	71.8 Top 25%	82% Math proficiency	546
27	Flagstaff Charter Academy Longmont · Elementary · Grades PK–8	Charter	71.5 Top 25%	49% Math proficiency	725
28	The Classical Academy Middle School Colorado Springs · Middle · Grades 7–8	Charter	71.5 Top 25%	51% Math proficiency	445
29	American Academy Castle Pines · Elementary · Grades PK–8	Charter	71.0 Top 25%	58% Math proficiency	2,803
30	North Star Academy Parker · Elementary · Grades K–8	Charter	70.7 Top 25%	54% Math proficiency	684
31	Odyssey School of Denver Denver · Elementary · Grades K–8	Charter	70.6 Top 25%	47% Math proficiency	318
32	Colorado Early Colleges Colorado Springs Colorado Springs · High · Grades 6–12	Charter	70.4 Top 25%	57% Math proficiency	677
33	Academy for Advanced and Creative Learning Colorado Springs · Elementary · Grades K–8	Charter	68.6 Top 25%	52% Math proficiency	298
34	DSST: Montview High School Denver · High · Grades 9–12	Charter	68.4 Top 25%	72% Math proficiency	562
35	CIVA Charter Academy Colorado Springs · High · Grades 9–12	Charter	67.7 Top 25%	54.5% Math proficiency	174
36	Windsor Charter Academy Middle School Windsor · Middle · Grades 6–8	Charter	67.7 Top 25%	16.7% Free/reduced-price lunch	395
37	Aspen Community Charter School Woody Creek · Elementary · Grades PK–8	Charter	67.4 Top 50%	47% Math proficiency	135
38	Pioneer Technology and Arts Academy Colorado Springs · Elementary · Grades K–8	Charter	66.2 Top 50%	28.8% Free/reduced-price lunch	538
39	James Irwin Charter High School Colorado Springs · High · Grades 9–12	Charter	66.0 Top 25%	57% Math proficiency	425
40	CIVICA Colorado Milliken · High · Grades 6–12	Charter	65.7 Top 50%	26.8% Free/reduced-price lunch	157
41	TCA College Pathways Colorado Springs · High · Grades 7–12	Charter	65.4 Top 50%	57% Math proficiency	502
42	Excel Academy Charter School Arvada · Elementary · Grades K–8	Charter	65.1 Top 50%	45% Math proficiency	445
43	The Vanguard School (Middle) Colorado Springs · Middle · Grades 7–8	Charter	64.9 Top 50%	35.4% Free/reduced-price lunch	243
44	Animas High School Durango · High · Grades 9–12	Charter	64.7 Top 50%	32% Math proficiency	249
45	Highline Academy Southeast Denver · Elementary · Grades K–8	Charter	64.5 Top 50%	49% Math proficiency	591
46	Woodrow Wilson Charter Academy Westminster · Elementary · Grades PK–8	Charter	64.5 Top 50%	49% Math proficiency	518
47	The Vanguard School (Elementary) Colorado Springs · Elementary · Grades K–6	Charter	64.0 Top 50%	23.7% Free/reduced-price lunch	949
48	James Irwin Elementary School - Canada Drive Colorado Springs · Elementary · Grades K–5	Charter	63.8 Top 50%	31.1% Free/reduced-price lunch	132
49	DSST: Green Valley Ranch High School Denver · High · Grades 9–12	Charter	63.5 Top 50%	67% Math proficiency	562
50	Littleton Prep Charter School Littleton · Elementary · Grades PK–8	Charter	63.4 Top 50%	43% Math proficiency	498
51	Steamboat Montessori Steamboat Springs · Elementary · Grades PK–6	Charter	63.4 Top 50%	34.5% Math proficiency	140
52	Axis International Academy Fort Collins · Elementary · Grades PK–6	Charter	63.0 Top 50%	33.3% Free/reduced-price lunch	288
53	Mountain Middle School Durango · Middle · Grades 4–8	Charter	61.7 Top 50%	46% Math proficiency	302
54	Windsor Charter Academy Early College High School Windsor · High · Grades 9–12	Charter	61.1 Top 50%	39% Math proficiency	435
55	Girls Athletic Leadership School Middle School Denver · Middle · Grades 6–8	Charter	61.0 Top 50%	37% Math proficiency	223
56	New Vision Charter School Loveland · Elementary · Grades K–8	Charter	60.9 Top 50%	47% Math proficiency	1,005
57	Carbondale Community Charter School Carbondale · Elementary · Grades K–8	Charter	60.4 Top 50%	37% Math proficiency	143
58	The STEAD School Commerce City · High · Grades 9–12	Charter	60.2 Top 50%	23.3% Free/reduced-price lunch	421
59	Colorado Early Colleges Fort Collins Fort Collins · High · Grades 6–12	Charter	60.0 Top 50%	48% Math proficiency	971
60	Jefferson Academy Elementary Broomfield · Elementary · Grades PK–6	Charter	59.2 Top 50%	42% Math proficiency	737
61	Mountain View Academy Colorado Springs · Elementary · Grades K–8	Charter	58.2 Top 50%	33.1% Free/reduced-price lunch	387
62	James Irwin Elementary School - Howard Colorado Springs · Elementary · Grades K–5	Charter	58.1 Top 50%	54.9% Free/reduced-price lunch	213
63	Eagle Ridge Academy Brighton · High · Grades 9–12	Charter	57.9 Top 50%	47% Math proficiency	593
64	Aspen View Academy Castle Rock · Elementary · Grades PK–8	Charter	57.7 Top 50%	40% Math proficiency	1,018
65	Firestone Charter Academy Firestone · Elementary · Grades PK–8	Charter	57.5 Top 50%	35% Math proficiency	600
66	James Irwin Elementary School - Astrozon Colorado Springs · Elementary · Grades K–5	Charter	56.9 Top 50%	48% Math proficiency	522
67	Leman Classical Academy Parker · Elementary · Grades K–8	Charter	56.3 Top 50%	48% Math proficiency	1,390
68	Orton Academy Colorado Springs · Middle · Grades 2–8	Charter	56.2 Top 50%	45.6% Free/reduced-price lunch	114
69	Legacy Academy Elizabeth · Elementary · Grades K–8	Charter	56.0 Top 50%	34% Math proficiency	428
70	DC Montessori Charter School Castle Rock · Elementary · Grades PK–8	Charter	55.9 Top 50%	39% Math proficiency	547
71	Alta Vista Charter School Lamar · Elementary · Grades K–6	Charter	55.7 Top 50%	37% Math proficiency	133
72	Fort Collins Montessori School Fort Collins · Elementary · Grades PK–6	Charter	55.3 Top 50%	44.5% Math proficiency	278
73	James Irwin Charter Middle School Colorado Springs · Middle · Grades 6–8	Charter	55.0 Top 50%	43% Math proficiency	434
74	Villa Bella Expeditionary School Pueblo · Elementary · Grades K–5	Charter	54.7 Top 50%	33.2% Free/reduced-price lunch	298
75	Downtown Denver Expeditionary School Denver · Elementary · Grades K–5	Charter	54.3 Top 50%	34% Math proficiency	263
76	Georgetown Community School Georgetown · Elementary · Grades PK–6	Charter	54.1 Top 50%	54.5% Math proficiency	78
77	DSST: Elevate Northeast Middle School Denver · Middle · Grades 6–8	Charter	53.6 Top 50%	47% Math proficiency	451
78	Victory Preparatory Academy High State Charter School Commerce City · High · Grades 9–12	Charter	53.5 Top 50%	49.5% Math proficiency	118
79	Mountain Sage Community School Fort Collins · Elementary · Grades K–8	Charter	53.0 Top 50%	32% Math proficiency	265
80	Heritage Heights Academy Centennial · Elementary · Grades K–8	Charter	52.6 Top 50%	37% Math proficiency	539
81	Pikes Peak School Expeditionary Learning Falcon · Elementary · Grades K–8	Charter	52.5 Top 50%	33% Math proficiency	400
82	West Ridge Academy Greeley · Elementary · Grades K–8	Charter	52.5 Top 50%	43% Math proficiency	329
83	Rocky Mountain Academy of Evergreen Evergreen · Elementary · Grades K–8	Charter	51.9 Top 50%	36% Math proficiency	350
84	Stone Creek School Edwards · Elementary · Grades K–8	Charter	50.9 Top 50%	31% Math proficiency	297
85	Lincoln Charter Academy Arvada · Elementary · Grades PK–8	Charter	50.8 Top 50%	37% Math proficiency	824
86	Montessori Peaks Charter Academy Littleton · Elementary · Grades PK–8	Charter	50.7 Top 50%	27% Math proficiency	444
87	Landmark Academy at Reunion Commerce City · Elementary · Grades K–8	Charter	50.5 Top 50%	45% Math proficiency	758
88	Global Village Academy - Douglas County Parker · Elementary · Grades K–6	Charter	50.4 Top 50%	22% Math proficiency	450
89	St. Vrain Community Montessori School Longmont · Elementary · Grades PK–8	Charter	50.4 Top 50%	10% Math proficiency	260
90	Mesa Valley Community School Grand Junction · High · Grades 6–12	Charter	49.9 Top 50%	32% Math proficiency	178
91	Monument Charter Academy Secondary School Colorado Springs · High · Grades 6–12	Charter	49.6 Top 50%	32% Math proficiency	541
92	Mount View Core Knowledge Charter School Canon City · Elementary · Grades PK–8	Charter	49.6 Lower 50%	32% Math proficiency	250
93	World Compass Academy Castle Rock · Elementary · Grades PK–8	Charter	49.5 Lower 50%	36% Math proficiency	791
94	Aspen Ridge Preparatory School Erie · Elementary · Grades K–8	Charter	49.3 Lower 50%	35% Math proficiency	581
95	KIPP Northeast Denver Leadership Academy Denver · High · Grades 9–12	Charter	48.9 Lower 50%	42% Math proficiency	555
96	Villa Bella Expeditionary Middle School Pueblo · Middle · Grades 6–8	Charter	48.9 Lower 50%	46.1% Free/reduced-price lunch	141
97	Cardinal Community Academy Charter School Keenesburg · Elementary · Grades K–8	Charter	48.3 Lower 50%	37% Math proficiency	182
98	Sky Ranch Academy Aurora · Elementary · Grades K–8	Charter	48.1 Lower 50%	42.4% Free/reduced-price lunch	495
99	Foundations Academy Brighton · Elementary · Grades K–8	Charter	47.4 Lower 50%	43% Math proficiency	763
100	Parker Performing Arts Englewood · Elementary · Grades K–8	Charter	47.1 Lower 50%	31% Math proficiency	638

The Classical Academy High School in Colorado Springs leads the 2025 list of charter schools in Colorado with a Success Index (US) of 88.7. Of the 100 schools shown, 100 are charter.

Scores are percentiles within school type, so a elementary school and a high school with the same score sit at the same point in their own distributions. Use the rankings to build a shortlist, then visit the schools and ask how they support students at your child's level.

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Frequently asked questions

What is the best charter school in Colorado?

The Classical Academy High School in Colorado Springs ranks first among charter schools in Colorado with a Success Index (US) of 88.7 out of 100 (Enrollment: 616).

How are charter schools in Colorado ranked?

Each school's Success Index (US) combines 4 factors: math proficiency (30%), reading proficiency (30%), community advantage (fewer free/reduced-price lunch) (25%), students per teacher (15%). Each factor is a percentile against schools of the same type across United States. Schools with fewer than 60 students are excluded from rankings.

Are these 2025 rankings official?

No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.