Best Student-Teacher Ratios in Colorado

The schools in Colorado with the lowest student-teacher ratios offer smaller class sizes, which research links to better academic outcomes, according to the National Center for Education Statistics (NCES). The top-ranked school, Colorado School for the Deaf and Blind, has a ratio of just 5.9:1.

The Colorado state average is 16.9:1, compared to the national average of 15.9:1. Schools with enrollment under 100 are excluded to ensure meaningful comparisons.

5.9:1
Best Ratio
Colorado School for the Deaf and Blind
16.9:1
State Average
15.9:1
National Average
50
Schools Listed
# School Student:Teacher Enrollment
1. Colorado School for the Deaf and Blind COLORADO SPRINGS 5.9:1
-65% vs state
167
2. Leadership Academy of Colorado BOULDER 6.4:1
-62% vs state
622
3. Harold Ferguson High School LOVELAND 6.9:1
-59% vs state
164
4. Sobesky Academy LAKEWOOD 6.9:1
-59% vs state
101
5. Strive Prep - Sunnyside DENVER 7.2:1
-57% vs state
154
6. Mathematics and Science Leadership Academy DENVER 7.3:1
-57% vs state
116
7. Arapahoe Ridge High School BOULDER 7.4:1
-56% vs state
184
8. Florence Crittenton High School DENVER 7.4:1
-56% vs state
107
9. Jefferson Academy BROOMFIELD 7.9:1
-53% vs state
317
10. Colorado Early Colleges Windsor WINDSOR 7.9:1
-53% vs state
196
11. Strive Prep - Lake DENVER 8.1:1
-52% vs state
187
12. Berry Creek Middle School EDWARDS 8.2:1
-51% vs state
212
13. Red Canyon High School EDWARDS 8.2:1
-51% vs state
157
14. Spark Online Academy COLORADO SPRINGS 8.3:1
-51% vs state
140
15. Strive Prep - Kepner DENVER 8.6:1
-49% vs state
171
16. Carbondale Community Charter School CARBONDALE 8.6:1
-49% vs state
143
17. Empower Community High School AURORA 8.9:1
-47% vs state
214
18. Fort Lewis Mesa Elementary School HESPERUS 8.9:1
-47% vs state
116
19. Strive Prep - Westwood DENVER 9:1
-47% vs state
411
20. Contemporary Learning Academy DENVER 9:1
-47% vs state
126
21. Flagler Public School FLAGLER 9.1:1
-46% vs state
186
22. Crestone Charter School CRESTONE 9.1:1
-46% vs state
100
23. Two Roads Charter School ARVADA 9.2:1
-46% vs state
345
24. Strive Prep - Noel DENVER 9.2:1
-46% vs state
287
25. Boulder Prep Charter High School BOULDER 9.2:1
-46% vs state
114
26. Psd Global Academy FORT COLLINS 9.3:1
-45% vs state
259
27. Schmitt Elementary School DENVER 9.3:1
-45% vs state
157
28. West Grand High School KREMMLING 9.3:1
-45% vs state
123
29. La Veta Junior-Senior High School LA VETA 9.3:1
-45% vs state
118
30. Edwards Elementary School EDWARDS 9.4:1
-44% vs state
269
31. Montbello Career and Technical High School DENVER 9.4:1
-44% vs state
158
32. Legacy Options High School DENVER 9.4:1
-44% vs state
153
33. Strive Prep - Ruby Hill DENVER 9.5:1
-44% vs state
443
34. Collegiate Academy of Colorado LITTLETON 9.5:1
-44% vs state
245
35. Englewood Middle School ENGLEWOOD 9.5:1
-44% vs state
210
36. Allies COLORADO SPRINGS 9.5:1
-44% vs state
124
37. Fowler High School FOWLER 9.5:1
-44% vs state
101
38. Ignacio High School IGNACIO 9.6:1
-43% vs state
182
39. East Elementary School LITTLETON 9.7:1
-43% vs state
184
40. Strive Prep - Smart Academy DENVER 9.8:1
-42% vs state
604
41. Salida Montessori Charter School SALIDA 9.8:1
-42% vs state
186
42. Jeffco Transition Services School LAKEWOOD 9.8:1
-42% vs state
116
43. University Prep - Steele St. DENVER 9.9:1
-41% vs state
334
44. Cherry Creek Elevation CENTENNIAL 9.9:1
-41% vs state
248
45. Midland Elementary School COLORADO SPRINGS 9.9:1
-41% vs state
129
46. Bill Metz Elementary School MONTE VISTA 10:1
-41% vs state
253
47. Summit Academy DENVER 10:1
-41% vs state
236
48. Columbian Elementary School DENVER 10:1
-41% vs state
171
49. Akron High School AKRON 10:1
-41% vs state
110
50. Ecc Aims District 6 Preschool GREELEY 10:1
-41% vs state
110
Source: National Center for Education Statistics (NCES), Common Core of Data (CCD), 2022-23 school year. Schools with enrollment under 100 are excluded.
Largest Schools in Colorado → Highest-Spending Districts → Chronic Absenteeism →

Read our methodology — how this data is sourced, computed, and verified.