For the 2025-26 school year, there are 30 public middle schools serving 16,588 students in Boulder County, CO. The top ranked public middle schools in Boulder County, CO are Summit Middle Charter School, Southern Hills Middle School and Boulder Universal. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Boulder County, CO public middle schools have an average math proficiency score of 46% (versus the Colorado public middle school average of 30%), and reading proficiency score of 57% (versus the 43% statewide average). Middle schools in Boulder County have an average ranking of 9/10, which is in the top 20% of Colorado public middle schools.
Minority enrollment is 33% of the student body (majority Hispanic), which is less than the Colorado public middle school average of 50% (majority Hispanic).
Best Public Middle Schools in Boulder County (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Summit Middle Charter School
Charter School
(Math: 88% | Reading: 91%)
Rank:
Rank:
10/
Top 1%10
4655 Hanover Avenue
Boulder, CO 80305
(720) 561-3900
Boulder, CO 80305
(720) 561-3900
Gr: 6-8 | 361 students Student-teacher ratio: 16:1 Minority enrollment: 37%
Rank: #22.
Southern Hills Middle School
(Math: 65% | Reading: 83%)
Rank:
Rank:
10/
Top 5%10
1500 Knox Drive
Boulder, CO 80305
(720) 561-3400
Boulder, CO 80305
(720) 561-3400
Gr: 6-8 | 493 students Student-teacher ratio: 20:1 Minority enrollment: 25%
Rank: #33.
Boulder Universal
(Math: 60-79% | Reading: 70-79%)
Rank:
Rank:
10/
Top 5%10
6500 East Arapahoe Road
Boulder, CO 80303
(720) 561-6253
Boulder, CO 80303
(720) 561-6253
Gr: K-12 | 226 students Student-teacher ratio: 13:1 Minority enrollment: 37%
Rank: #44.
Eldorado K-8 School
(Math: 64% | Reading: 70%)
Rank:
Rank:
10/
Top 10%10
3351 South Indiana Street
Louisville, CO 80027
(720) 561-4400
Louisville, CO 80027
(720) 561-4400
Gr: PK-8 | 559 students Student-teacher ratio: 16:1 Minority enrollment: 27%
Rank: #55.
Peak To Peak Charter School
Charter School
(Math: 61% | Reading: 67%)
Rank:
Rank:
10/
Top 10%10
800 Merlin Drive
Lafayette, CO 80026
(303) 453-4600
Lafayette, CO 80026
(303) 453-4600
Gr: K-12 | 1,452 student Student-teacher ratio: 19:1 Minority enrollment: 43%
Rank: #66.
Altona Middle School
(Math: 62% | Reading: 65%)
Rank:
Rank:
10/
Top 10%10
4600 Clover Basin Drive
Longmont, CO 80503
(720) 494-3980
Longmont, CO 80503
(720) 494-3980
Gr: 6-8 | 741 students Student-teacher ratio: 19:1 Minority enrollment: 29%
Rank: #77.
Lyons Middle/senior High School
(Math: 50-54% | Reading: 70-74%)
Rank:
Rank:
10/
Top 10%10
100 Mcconnell Drive
Lyons, CO 80540
(303) 823-6631
Lyons, CO 80540
(303) 823-6631
Gr: 6-12 | 352 students Student-teacher ratio: 15:1 Minority enrollment: 16%
Rank: #88.
Meadowlark School
(Math: 53% | Reading: 69%)
Rank:
Rank:
9/
Top 20%10
2300 Sweet Meadow Lane
Erie, CO 80516
(720) 561-5104
Erie, CO 80516
(720) 561-5104
Gr: PK-8 | 754 students Student-teacher ratio: 19:1 Minority enrollment: 30%
Rank: #99.
Horizons K-8 School
Alternative School
Charter School
Charter School
(Math: 53% | Reading: 65%)
Rank:
Rank:
9/
Top 20%10
4545 Sioux Drive
Boulder, CO 80303
(720) 561-5580
Boulder, CO 80303
(720) 561-5580
Gr: K-8 | 361 students Student-teacher ratio: 14:1 Minority enrollment: 18%
Rank: #1010.
Apex Home School Enrichment Program
(Math: 40-59% | Reading: 60-79% )
Rank:
Rank:
9/
Top 20%10
1351 S. Sunset St Unit B
Longmont, CO 80501
(303) 702-8600
Longmont, CO 80501
(303) 702-8600
Gr: K-12 | 717 students Student-teacher ratio: 120:1 Minority enrollment: 17%
Rank: #1111.
Monarch K-8 School
(Math: 50% | Reading: 64%)
Rank:
Rank:
9/
Top 20%10
263 Campus Drive
Louisville, CO 80027
(720) 561-4000
Louisville, CO 80027
(720) 561-4000
Gr: PK-8 | 738 students Student-teacher ratio: 17:1 Minority enrollment: 41%
Rank: #1212.
Louisville Middle School
(Math: 50% | Reading: 63%)
Rank:
Rank:
9/
Top 20%10
1341 Main Street
Louisville, CO 80027
(720) 561-7400
Louisville, CO 80027
(720) 561-7400
Gr: 6-8 | 610 students Student-teacher ratio: 19:1 Minority enrollment: 20%
Rank: #1313.
Twin Peaks Charter Academy
Charter School
(Math: 48% | Reading: 56%)
Rank:
Rank:
8/
Top 30%10
340 South Sunset Street
Longmont, CO 80501
(303) 772-7286
Longmont, CO 80501
(303) 772-7286
Gr: K-12 | 852 students Student-teacher ratio: 17:1 Minority enrollment: 41%
Rank: #1414.
Soaring Heights Pk-8
(Math: 47% | Reading: 56%)
Rank:
Rank:
8/
Top 30%10
3280 County Road 5
Erie, CO 80516
(303) 702-8020
Erie, CO 80516
(303) 702-8020
Gr: PK-8 | 1,254 student Student-teacher ratio: 17:1 Minority enrollment: 24%
Rank: #1515.
Flagstaff Charter Academy
Charter School
(Math: 42% | Reading: 57%)
Rank:
Rank:
8/
Top 30%10
2040 Miller Drive
Longmont, CO 80501
(303) 651-7900
Longmont, CO 80501
(303) 651-7900
Gr: PK-8 | 775 students Student-teacher ratio: 13:1 Minority enrollment: 33%
Rank: #1616.
Aspen Ridge Preparatory 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
Gr: K-8 | 548 students Student-teacher ratio: 14:1 Minority enrollment: 18%
Rank: #1717.
Westview Middle School
(Math: 41% | Reading: 58%)
Rank:
Rank:
8/
Top 30%10
1651 Airport Road
Longmont, CO 80503
(303) 772-3134
Longmont, CO 80503
(303) 772-3134
Gr: 6-8 | 621 students Student-teacher ratio: 18:1 Minority enrollment: 27%
Rank: #1818.
Justice High Charter School
Alternative School
Charter 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
Gr: 6-12 | 103 students Student-teacher ratio: 21:1 Minority enrollment: 69%
Rank: #1919.
Manhattan Middle School Of The Arts And Academics
(Math: 40% | Reading: 58%)
Rank:
Rank:
8/
Top 30%10
290 Manhattan Drive
Boulder, CO 80303
(720) 561-6300
Boulder, CO 80303
(720) 561-6300
Gr: 6-8 | 418 students Student-teacher ratio: 17:1 Minority enrollment: 38%
Rank: #2020.
St. Vrain Community Montessori School
Charter School
(Math: ≥50% | Reading: 40-59%)
Rank:
Rank:
8/
Top 30%10
1055 Delaware Ave.
Longmont, CO 80501
(303) 682-4339
Longmont, CO 80501
(303) 682-4339
Gr: PK-8 | 267 students Student-teacher ratio: 12:1 Minority enrollment: 19%
Rank: #2121.
Centennial Middle School
(Math: 42% | Reading: 52%)
Rank:
Rank:
7/
Top 50%10
2205 Norwood Avenue
Boulder, CO 80304
(720) 561-5441
Boulder, CO 80304
(720) 561-5441
Gr: 6-8 | 619 students Student-teacher ratio: 19:1 Minority enrollment: 35%
Rank: #2222.
Nevin Platt Middle School
(Math: 38% | Reading: 53%)
Rank:
Rank:
7/
Top 50%10
6096 Baseline Road
Boulder, CO 80303
(720) 561-5536
Boulder, CO 80303
(720) 561-5536
Gr: 6-8 | 503 students Student-teacher ratio: 16:1 Minority enrollment: 17%
Rank: #2323.
Erie Middle School
(Math: 45% | Reading: 48%)
Rank:
Rank:
7/
Top 50%10
650 Main Street
Erie, CO 80516
(303) 828-3391
Erie, CO 80516
(303) 828-3391
Gr: 6-8 | 742 students Student-teacher ratio: 20:1 Minority enrollment: 26%
Rank: #2424.
Nederland Middle-senior High School
(Math: 20-24% | Reading: 55-59%)
Rank:
Rank:
6/
Top 50%10
597 Eldora Road
Nederland, CO 80466
(720) 561-4900
Nederland, CO 80466
(720) 561-4900
Gr: 6-12 | 245 students Student-teacher ratio: 14:1 Minority enrollment: 11%
Rank: #2525.
Casey Middle School
(Math: 22% | Reading: 44%)
Rank:
Rank:
5/
Bottom 50%10
1301 High Street
Boulder, CO 80304
(720) 561-2700
Boulder, CO 80304
(720) 561-2700
Gr: 6-8 | 393 students Student-teacher ratio: 12:1 Minority enrollment: 60%
Rank: #2626.
Angevine Middle School
(Math: 26% | Reading: 41%)
Rank:
Rank:
5/
Bottom 50%10
1150 W South Boulder Road
Lafayette, CO 80026
(720) 561-7100
Lafayette, CO 80026
(720) 561-7100
Gr: 6-8 | 609 students Student-teacher ratio: 14:1 Minority enrollment: 49%
Rank: #2727.
Sunset Middle School
(Math: 21% | Reading: 32%)
Rank:
Rank:
4/
Bottom 50%10
1300 S. Sunset
Longmont, CO 80501
(303) 776-3963
Longmont, CO 80501
(303) 776-3963
Gr: 6-8 | 341 students Student-teacher ratio: 13:1 Minority enrollment: 56%
Rank: #2828.
St. Vrain Launched Virtual Academy
(Math: 15-19% | Reading: 30-34%)
Rank:
Rank:
4/
Bottom 50%10
395 S. Pratt Parkway
Longmont, CO 80501
(303) 702-8800
Longmont, CO 80501
(303) 702-8800
Gr: K-12 | 329 students Student-teacher ratio: 12:1 Minority enrollment: 50%
Rank: #2929.
Longs Peak Middle School
(Math: 10% | Reading: 17%)
Rank:
Rank:
1/
Bottom 50%10
1500 14th Avenue
Longmont, CO 80501
(303) 776-5611
Longmont, CO 80501
(303) 776-5611
Gr: 5-8 | 382 students Student-teacher ratio: 12:1 Minority enrollment: 71%
Rank: n/an/a
1942 Broadway Street Ste 314c
Boulder, CO 80302
(303) 345-4145
Boulder, CO 80302
(303) 345-4145
Gr: 6-12 | 223 students Student-teacher ratio: 14:1 Minority enrollment: 35%
Boulder County 51爆料s (Closed)
School
Location
Quick Facts
Adult Educationlincoln Center (Closed 2014)
Alternative School
820 Main St
Longmont, CO 80501
(303) 678-5662
Longmont, CO 80501
(303) 678-5662
Gr: 6-12 | 122 students Minority enrollment: 57%
700 20th Street
Boulder, CO 80302
(303) 443-1062
Boulder, CO 80302
(303) 443-1062
Gr: 6-8 | 416 students Student-teacher ratio: 16:1 Minority enrollment: 31%
7690 East Baseline Rd
Boulder, CO 80303
(720) 561-5500
Boulder, CO 80303
(720) 561-5500
Gr: K-12 | 11 students Student-teacher ratio: 11:1 Minority enrollment: 27%
Halcyon School (Special Education) (Closed 2023)
Special Education School
3100 Bucknell Court
Boulder, CO 80303
(720) 561-4700
Boulder, CO 80303
(720) 561-4700
Gr: 6-12 | 13 students Student-teacher ratio: 3:1 Minority enrollment: 23%
233 East Mountain View
Longmont, CO 80501
(303) 772-7900
Longmont, CO 80501
(303) 772-7900
Gr: 6-8 | 414 students Student-teacher ratio: 14:1 Minority enrollment: 87%
333 East Mountain View
Longmont, CO 80501
(303) 772-4280
Longmont, CO 80501
(303) 772-4280
Gr: PK-5 | 380 students Student-teacher ratio: 15:1 Minority enrollment: 81%
840 Mapleton Avenue
Boulder, CO 80304
(303) 442-6962
Boulder, CO 80304
(303) 442-6962
Gr: K-5 | 128 students Minority enrollment: 9%
1200 South Sunset Street
Longmont, CO 80501
(720) 494-3975
Longmont, CO 80501
(720) 494-3975
Gr: 9-12
1200 South Sunset Street
Longmont, CO 80501
(720) 494-3969
Longmont, CO 80501
(720) 494-3969
Gr: 9-12 | 50 students Student-teacher ratio: 13:1 Minority enrollment: 76%
Sojourner Charter School (Closed 2004)
Charter School
3050 34th Street
Boulder, CO 80301
(303) 494-9210
Boulder, CO 80301
(303) 494-9210
Gr: 6-8 | 34 students Minority enrollment: 59%
1440 Collyer St
Longmont, CO 80501
(720) 494-3761
Longmont, CO 80501
(720) 494-3761
Gr: PK-5 | 320 students Student-teacher ratio: 12:1 Minority enrollment: 89%
Ute Creek Secondary Charter Academy (Closed 2008)
Charter School
1198 Boston Avenue
Longmont, CO 80501
(303) 774-0066
Longmont, CO 80501
(303) 774-0066
Gr: 9-12 | 169 students Student-teacher ratio: 14:1 Minority enrollment: 33%
1215 Cedar Avenue
Boulder, CO 80304
(303) 449-6618
Boulder, CO 80304
(303) 449-6618
Gr: K-5 | 285 students Student-teacher ratio: 18:1 Minority enrollment: 68%
Frequently Asked Questions
What are the top ranked public middle schools in Boulder County, CO?
The top ranked public middle schools in Boulder County, CO include Summit Middle Charter School, Southern Hills Middle School and Boulder Universal. Boulder County has one of the highest concentrations of top ranked public schools in Colorado.
How many public middle schools are located in Boulderunty?
30 public middle schools are located in Boulderunty.
What is the racial composition of students in Boulderunty?
Boulderunty public middle schools minority enrollment is 33% of the student body (majority Hispanic), which is less than the Colorado public middle schools average of 50% (majority Hispanic).
Which public middle schools in Boulderunty are often viewed compared to one another?
Popular comparisons of public middle schools in Boulderunty include: Southern Hills Middle School vs. Summit Middle Charter School, Westview Middle School vs. Altona Middle School, Summit Middle Charter School vs. Southern Hills Middle School
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