For the 2024-25 school year, there are 9 public charter schools serving 4,760 students in Boulder County, CO. The top ranked public charter schools in Boulder County, CO are Summit Middle Charter School, Peak To Peak Charter School and Horizons K-8 School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Boulder County, CO public charter schools have an average math proficiency score of 54% (versus the Colorado public charter school average of 34%), and reading proficiency score of 64% (versus the 47% statewide average). Charter schools in Boulder County have an average ranking of 10/10, which is in the top 10% of Colorado public charter schools.
Minority enrollment is 34% of the student body (majority Hispanic), which is less than the Colorado public charter school average of 51% (majority Hispanic).
Best Public Charter Schools in Boulder County (2024-25)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Summit Middle Charter School
Magnet School
Charter School
Charter School
(Math: 82% | Reading: 91%)
Rank:
Rank:
10/
Top 1%10
4655 Hanover Avenue
Boulder, CO 80305
(720) 561-3900
Boulder, CO 80305
(720) 561-3900
Grades: 6-8
| 359 students
Rank: #22.
Peak To Peak Charter School
Magnet School
Charter School
Charter School
(Math: 55% | Reading: 67%)
Rank:
Rank:
10/
Top 10%10
800 Merlin Drive
Lafayette, CO 80026
(303) 453-4600
Lafayette, CO 80026
(303) 453-4600
Grades: K-12
| 1,450 students
Rank: #33.
Horizons K-8 School
Alternative School
Magnet School
Charter School
Magnet School
Charter School
(Math: 52% | Reading: 65%)
Rank:
Rank:
9/
Top 20%10
4545 Sioux Drive
Boulder, CO 80303
(720) 561-5580
Boulder, CO 80303
(720) 561-5580
Grades: K-8
| 348 students
Rank: #44.
Flagstaff Charter Academy
Magnet School
Charter School
Charter School
(Math: 46% | Reading: 57%)
Rank:
Rank:
8/
Top 30%10
2040 Miller Drive
Longmont, CO 80501
(303) 651-7900
Longmont, CO 80501
(303) 651-7900
Grades: PK-8
| 772 students
Rank: #55.
Aspen Ridge Preparatory School
Magnet School
Charter School
Charter School
(Math: 48% | Reading: 52%)
Rank:
Rank:
8/
Top 30%10
705 Austin Avenue
Erie, CO 80516
(720) 242-6225
Erie, CO 80516
(720) 242-6225
Grades: K-8
| 547 students
Rank: #66.
Twin Peaks Charter Academy
Magnet School
Charter School
Charter School
(Math: 44% | Reading: 56%)
Rank:
Rank:
8/
Top 30%10
340 South Sunset Street
Longmont, CO 80501
(303) 772-7286
Longmont, CO 80501
(303) 772-7286
Grades: K-12
| 807 students
Rank: #77.
Justice High Charter School
Alternative School
Magnet School
Charter School
Magnet School
Charter School
(Math: <50% | Reading: <50%)
Rank:
Rank:
8/
Top 30%10
805 Excalibur
Lafayette, CO 80026
(720) 935-1337
Lafayette, CO 80026
(720) 935-1337
Grades: 6-12
| 102 students
Rank: #88.
St. Vrain Community Montessori School
Magnet School
Charter School
Charter School
(Math: 21-39% | Reading: 40-59%)
Rank:
Rank:
6/
Top 50%10
1067 South Hover St Pmb E235
Longmont, CO 80501
(303) 682-4339
Longmont, CO 80501
(303) 682-4339
Grades: PK-8
| 256 students
Rank: n/an/a
Boulder Prep Charter High School
Alternative School
Magnet School
Charter School
Magnet School
Charter School
5075 Chaparral Court #1
Boulder, CO 80301
(303) 545-6186
Boulder, CO 80301
(303) 545-6186
Grades: 9-12
| 119 students
Boulder County Public Schools (Closed)
School
Location
Grades
Students
Adult Educationlincoln Center (Closed 2014)
Alternative School
820 Main St
Longmont, CO 80501
(303) 678-5662
Longmont, CO 80501
(303) 678-5662
Grades: 6-12
| 122 students
1351 S. Sunset St Unit B
Longmont, CO 80501
(303) 702-8600
Longmont, CO 80501
(303) 702-8600
Grades: K-12
| 717 students
700 20th Street
Boulder, CO 80302
(303) 443-1062
Boulder, CO 80302
(303) 443-1062
Grades: 6-8
| 416 students
7690 East Baseline Rd
Boulder, CO 80303
(720) 561-5500
Boulder, CO 80303
(720) 561-5500
Grades: K-12
| 11 students
Halcyon School (Special Education) (Closed 2023)
Special Education School
3100 Bucknell Court
Boulder, CO 80303
(720) 561-4700
Boulder, CO 80303
(720) 561-4700
Grades: 6-12
| 13 students
233 East Mountain View
Longmont, CO 80501
(303) 772-7900
Longmont, CO 80501
(303) 772-7900
Grades: 6-8
| 414 students
333 East Mountain View
Longmont, CO 80501
(303) 772-4280
Longmont, CO 80501
(303) 772-4280
Grades: PK-5
| 380 students
840 Mapleton Avenue
Boulder, CO 80304
(303) 442-6962
Boulder, CO 80304
(303) 442-6962
Grades: K-5
| 128 students
1200 South Sunset Street
Longmont, CO 80501
(720) 494-3975
Longmont, CO 80501
(720) 494-3975
Grades: 9-12
| n/a students
1200 South Sunset Street
Longmont, CO 80501
(720) 494-3969
Longmont, CO 80501
(720) 494-3969
Grades: 9-12
| 50 students
Sojourner Charter School (Closed 2004)
Charter School
3050 34th Street
Boulder, CO 80301
(303) 494-9210
Boulder, CO 80301
(303) 494-9210
Grades: 6-8
| 34 students
1440 Collyer St
Longmont, CO 80501
(720) 494-3761
Longmont, CO 80501
(720) 494-3761
Grades: PK-5
| 320 students
Ute Creek Secondary Charter Academy (Closed 2008)
Charter School
1198 Boston Avenue
Longmont, CO 80501
(303) 774-0066
Longmont, CO 80501
(303) 774-0066
Grades: 9-12
| 169 students
1215 Cedar Avenue
Boulder, CO 80304
(303) 449-6618
Boulder, CO 80304
(303) 449-6618
Grades: K-5
| 285 students
Frequently Asked Questions
What are the top ranked public charter schools in Boulder County, CO?
The top ranked public charter schools in Boulder County, CO include Summit Middle Charter School, Peak To Peak Charter School and Horizons K-8 School. Boulder County has one of the highest concentrations of top ranked public schools in Colorado.
How many public charter schools are located in Boulderunty?
9 public charter schools are located in Boulderunty.
What is the racial composition of students in Boulderunty?
Boulderunty public charter schools minority enrollment is 34% of the student body (majority Hispanic), which is less than the Colorado public charter schools average of 51% (majority Hispanic).
Which public charter schools in Boulderunty are often viewed compared to one another?
Popular comparisons of public charter schools in Boulderunty include: St. Vrain Community Montessori School vs. Flagstaff Charter Academy, Flagstaff Charter Academy vs. St. Vrain Community Montessori School, Twin Peaks Charter Academy vs. Flagstaff Charter Academy
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