For the 2026 school year, there are 15 public charter schools serving 8,385 students in Weld County, CO.
The top-ranked public charter schools in Weld County, CO are Windsor Charter Academy Early College High School, Windsor Charter Academy Elementary School and Windsor Charter Academy Middle School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Weld County, CO public charter schools have an average math proficiency score of 31% (versus the Colorado public charter school average of 35%), and reading proficiency score of 43% (versus the 48% statewide average). Charter schools in Weld County have an average ranking of 5/10, which is in the bottom 50% of Colorado public charter schools.
Minority enrollment is 43% of the student body (majority Hispanic), which is less than the Colorado public charter school average of 53% (majority Hispanic).
Best Public Charter Schools in Weld County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Windsor Charter Academy Early College High School
Charter School
(Math: 60-64% | Reading: 80-84%)
Rank:
Rank:
10/
Top 5%10
810 Automation Drive
Windsor, CO 80550
(970) 833-5190
Windsor, CO 80550
(970) 833-5190
Gr: 9-12 | 435 students Student-teacher ratio: 18:1 Minority enrollment: 22%
Rank: #22.
Windsor Charter Academy Elementary School
Charter School
(Math: 58% | Reading: 69%)
Rank:
Rank:
10/
Top 10%10
680 Academy Court
Windsor, CO 80550
(970) 674-5020
Windsor, CO 80550
(970) 674-5020
Gr: K-5 | 780 students Student-teacher ratio: 21:1 Minority enrollment: 19%
Rank: #33.
Windsor Charter Academy Middle School
Charter School
(Math: 58% | Reading: 67%)
Rank:
Rank:
10/
Top 10%10
810 Automation Drive
Windsor, CO 80550
(970) 833-5190
Windsor, CO 80550
(970) 833-5190
Gr: 6-8 | 395 students Student-teacher ratio: 17:1 Minority enrollment: 22%
Rank: #44.
Cardinal Community Academy Charter School
Charter School
(Math: 40-44% | Reading: 55-59%)
Rank:
Rank:
8/
Top 30%10
3101 Wcr 65
Keenesburg, CO 80643
(303) 732-9312
Keenesburg, CO 80643
(303) 732-9312
Gr: K-8 | 182 students Student-teacher ratio: 17:1 Minority enrollment: 13%
Rank: #55.
Firestone Charter Academy
Charter School
(Math: 34% | Reading: 50%)
Rank:
Rank:
7/
Top 50%10
5753 Twilight Avenue
Longmont, CO 80504
(303) 772-3711
Longmont, CO 80504
(303) 772-3711
Gr: PK-8 | 600 students Student-teacher ratio: 14:1 Minority enrollment: 29%
Rank: #66.
Frontier Charter Academy
Charter School
(Math: 32% | Reading: 49%)
Rank:
Rank:
6/
Top 50%10
2560 West 29th Street
Greeley, CO 80631
(970) 330-1780
Greeley, CO 80631
(970) 330-1780
Gr: K-12 | 1,432 students Student-teacher ratio: 21:1 Minority enrollment: 44%
Rank: #77.
Civica Colorado
Charter School
(Math: 30-34% | Reading: 40-44%)
Rank:
Rank:
6/
Top 50%10
301 Centennial Drive
Johnstown, CO 80534
(970) 652-4711
Johnstown, CO 80534
(970) 652-4711
Gr: 6-12 | 157 students Student-teacher ratio: 20:1 Minority enrollment: 34%
Rank: #88.
West Ridge Academy
Charter School
(Math: 35% | Reading: 33%)
Rank:
Rank:
5/
Bottom 50%10
6905 8th St
Greeley, CO 80634
(970) 330-3671
Greeley, CO 80634
(970) 330-3671
Gr: K-8 | 329 students Student-teacher ratio: 16:1 Minority enrollment: 53%
Rank: #99.
Carbon Valley Academy
Charter School
(Math: 20-24% | Reading: 30-34%)
Rank:
Rank:
4/
Bottom 50%10
4040 Coriolis Way
Frederick, CO 80530
(303) 774-9555
Frederick, CO 80530
(303) 774-9555
Gr: PK-8 | 245 students Student-teacher ratio: 12:1 Minority enrollment: 54%
Rank: #1010.
Knowledge Quest Academy
Charter School
(Math: 20% | Reading: 36%)
Rank:
Rank:
4/
Bottom 50%10
705 South School House Drive
Milliken, CO 80543
(970) 587-5742
Milliken, CO 80543
(970) 587-5742
Gr: K-8 | 395 students Student-teacher ratio: 15:1 Minority enrollment: 34%
Rank: #1111.
Union Colony Preparatory School
Charter School
(Math: 20-24% | Reading: 30%)
Rank:
Rank:
4/
Bottom 50%10
2000 Clubhouse Drive
Greeley, CO 80634
(970) 673-4546
Greeley, CO 80634
(970) 673-4546
Gr: 6-12 | 333 students Student-teacher ratio: 21:1 Minority enrollment: 70%
Rank: #1212.
University Schools
Charter School
(Math: 19% | Reading: 33%)
Rank:
Rank:
4/
Bottom 50%10
6525 18th Street
Greeley, CO 80634
(970) 330-2221
Greeley, CO 80634
(970) 330-2221
Gr: K-12 | 1,784 students Student-teacher ratio: 18:1 Minority enrollment: 48%
Rank: #1313.
Union Colony Elementary School
Charter School
(Math: 15-19% | Reading: 25-29%)
Rank:
Rank:
3/
Bottom 50%10
1051 29th Street Rd
Evans, CO 80620
(970) 673-4997
Evans, CO 80620
(970) 673-4997
Gr: K-5 | 342 students Student-teacher ratio: 20:1 Minority enrollment: 77%
Rank: #1414.
Salida Del Sol Academy
Charter School
(Math: 13% | Reading: 23%)
Rank:
Rank:
2/
Bottom 50%10
111 E 26th Street
Greeley, CO 80631
(970) 347-8223
Greeley, CO 80631
(970) 347-8223
Gr: K-8 | 654 students Student-teacher ratio: 17:1 Minority enrollment: 97%
Rank: n/an/a
American Legacy Academy
Charter School
1870 Marina Dr.
Windsor, CO 80550
(970) 460-6057
Windsor, CO 80550
(970) 460-6057
Gr: K-8 | 419 students Student-teacher ratio: 20:1 Minority enrollment: 18%
Frequently Asked Questions
What are the top-ranked public charter schools in Weld County, CO?
The top-ranked public charter schools in Weld County, CO include Windsor Charter Academy Early College High School, Windsor Charter Academy Elementary School and Windsor Charter Academy Middle School.
How many public charter schools are located in Weldunty?
15 public charter schools are located in Weldunty.
What is the racial composition of students in Weldunty?
Weldunty public charter schools minority enrollment is 43% of the student body (majority Hispanic), which is less than the Colorado public charter schools average of 53% (majority Hispanic).
Which public charter schools in Weldunty are often viewed compared to one another?
Popular comparisons of public charter schools in Weldunty include: Cardinal Community Academy Charter School vs. Frontier Charter Academy, West Ridge Academy vs. University Schools, Union Colony Preparatory School vs. Frontier Charter Academy
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