Public schools in Colorado

1,900 operating public schools in 186 school districts and other education agencies, school year 2024–25.

Operating schoolsDefinition

1,900

Enrollment (sum of schools)Definition

865,055

1,894 of 1,900 schools reported
Source: NCES CCD School Membership 2024–25 · 2024–25

Teachers (FTE, sum of schools)Definition

52,568.5

Students per teacher FTEDefinition

16.5

Not class size.
Source: NCES CCD School Staff 2024–25 · 2024–25

Charter schoolsDefinition

260

Largest districts by enrollment

Sorted by enrollment (a size measure, not a quality ranking). 21 Colorado districts have full profiles so far; search all 186.

**Largest school districts in Colorado**Sum of school enrollment · school year 2024–25 · Source: NCES CCD
District	City	Schools	Students	Students / FTE
School District No. 1 in the county of Denver and State of C	Denver	198	90,471	15.2
Jefferson County School District No. R-1	Lakewood	144	73,532	16.9
Douglas County School District No. Re 1	Highlands Ranch	88	61,243	17.6
Cherry Creek School District No. 5 in the county of Arapah	Aurora	69	51,980	16.5
Aurora Joint District No. 28 of the counties of Adams and A	Aurora	58	38,691	17.6
Adams 12 Five Star Schools	Thornton	54	34,466	17.4
St. Vrain Valley School District No. Re1J	Longmont	54	31,607	17
Poudre School District R-1	Fort Collins	52	29,381	15.9
Boulder Valley School District No. Re2	Boulder	56	27,988	17.7
El Paso County Colorado School District 49	Colorado Springs	31	25,689	19.1
Academy School District No. 20 in the county of El Paso an	Colorado Springs	39	25,607	16.5
School District 27J	Brighton	33	24,044	19.7
GreeleySchool District No. 6 in the county of Weld and Sta	Greeley	34	22,917	18.9
Colorado Springs School District No. 11 in the county of E	Colorado Springs	59	22,227	15.1
State Charter School Institute	Aurora	46	19,960	17

NCES Common Core of Data (CCD), School Directory 2024–25, version 1a. File ccd_sch_029_2425_w_1a_073025.zip, last checked 2026-11-06.
NCES CCD School Membership 2024–25, version 1a. File ccd_sch_052_2425_l_1a_073025.zip, last checked 2026-11-06.
NCES CCD School Staff 2024–25, version 1a. File ccd_sch_059_2425_l_1a_073025.zip, last checked 2026-11-06.
NCES EDGE Public School Geocodes 2024–25. File EDGE_GEOCODE_PUBLICSCH_2425.zip, last checked 2026-11-06.

Figures are republished from official files without adjustment, except where a page says a value is summed or derived. See methodology and definitions & limitations. Spotted a problem? Report a data issue.