State profile · CO

Colorado Public Schools

Every public school, district, and the headline NCES measures for Colorado — 185 districts, drawn straight from federal records.

1,923
Schools
871,440
Students
16.9:1
Avg ratio
38.5%
Free lunch

The state in one line

Colorado runs 1,923 public schools across 185 districts, with a 16.9:1 average classroom and 38.5% of students on subsidized lunch.

1,923
public schools
185
school districts
16.9:1
avg student–teacher
38.5%
free/reduced lunch

What the NCES Data Says About Colorado Schools

Colorado operates 1,923 public K-12 schools organised into 185 independent school districts serving 871,440 students, per the National Center for Education Statistics Common Core of Data 2022-23. The largest district, School District No. 1 in the county of Denver and State of C, enrolls 87,883 pupils across 203 schools at $19,296 per student, while smaller rural districts can run fewer than a dozen campuses. This fragmentation — inherited from century-old township governance patterns in many states — is why per-pupil spending, class sizes, and programme availability vary dramatically inside a single state boundary.

Statewide, the average student-teacher ratio is 16.9:1, a useful benchmark for comparing any individual district or school on PlainSchools. Free-lunch eligibility averages 38.5% across Colorado public schools, a federal indicator of economic need that drives Title I funding allocations. The district table below is sortable by enrollment, school count, and per-pupil expenditure — the three fields that best predict a district's financial and demographic profile. For schools specifically, use the rankings links above to view per-category leaderboards covering spending, class size, best schools by composite quality score, chronic absenteeism, and funding-equity distribution within the state.

Every district figure here pulls from two distinct federal surveys: enrollment and demographic data come from the NCES Common Core of Data 2022-23 (school membership and directory), while per-pupil spending, teacher salaries, and federal/state/local revenue shares originate in the NCES F-33 School District Finance Survey (typically FY 2021-22). Civil-rights indicators — gifted enrollment, AP course counts, counselor staffing, chronic absenteeism, in- and out-of-school suspensions — come from the 2021-22 Civil Rights Data Collection. Cross-referencing these three sources is what lets PlainSchools produce composite scores and equity rankings that single-source tools cannot.

Colorado's average class size vs. every US state

Average students per teacher, state by state (lower means smaller classes)

17 smaller classes than 25% of 51 US states

11–12: 7 US states (14%). Below this entry. 12–13: 4 US states (8%). Below this entry. 13–14: 8 US states (16%). Below this entry. 14–15: 10 US states (20%). Below this entry. 15–16: 5 US states (10%). Below this entry. 16–17: 4 US states (8%). This entry sits in this band. 17–18: 4 US states (8%). Above this entry. 18–19: 5 US states (10%). Above this entry. 20–21: 1 US states (2%). Above this entry. 21–22: 1 US states (2%). Above this entry. 22–23: 1 US states (2%). Above this entry. 23–24: 1 US states (2%). Above this entry. This state 11 24 every US state, by average class size, bucketed by value

Each bar is a band; taller bars hold more US states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Department of Education — NCES Common Core of Data · 2024-25

Or browse all Colorado schools

Federal data — no proprietary formula. PlainSchools publishes the actual federal survey data — enrollment, staffing, finance, and demographics from NCES — without a composite rating on top. The insights below are computed directly from those datasets; every number traces to a cited source.

Colorado per-pupil spending varies 10.5× across districts

Per-pupil spending in Colorado ranges from $9,082 (lowest district) to $95,640 (highest), a spread of $86,558. That ratio is among the widest in the country and predicts large gaps in class size, programme availability, and counselor:student ratios that compound across a 12-year K-12 career. High-spending districts typically draw on higher property tax bases, a structural feature of state education finance under the federal Title I framework that sets the floor but not the ceiling.

Source: NCES F-33 School District Finance Survey Local Education Agency Finance Survey (F-33) · FY 2021-22

Average Colorado student-teacher ratio is 16.9:1 — near the U.S. average of approximately 16:1

Student-teacher ratio is the simplest staffing metric reported on NCES Common Core of Data, but it does not capture push-in specialists, intervention staff, English Language Learner aides, special education co-teachers, or counseling and support staff. Variation between districts within the state is wider than the state-average figure suggests — large urban districts may run 20:1 while small rural districts run 10:1, both inside the same average. Class-load comparisons are most meaningful at the district or school level, not the state aggregate.

Source: NCES Common Core of Data — Public School Universe School-level enrollment and staffing · 2022-23

Largest districts in Colorado

By total K-12 enrollment — NCES Common Core 2024-25

Top district = 10% of enrollment
School District No. 1 in the c…87,883Jefferson County School Distri…75,327Douglas County School District…62,341Cherry Creek School District N…52,392Aurora Joint District No. 28 o…38,135Adams 12 Five Star Schools35,747St. Vrain Valley School Distri…31,894Poudre School District R-129,995Boulder Valley School District…28,485Academy School District No. 20…25,719
District Enrollment
School District No. 1 in the county of Denver and State of C DENVER 87,883
Jefferson County School District No. R-1 GOLDEN 75,327
Douglas County School District No. Re 1 CASTLE ROCK 62,341
Cherry Creek School District No. 5 in the county of Arapah GREENWOOD VILLAGE 52,392
Aurora Joint District No. 28 of the counties of Adams and A AURORA 38,135
Adams 12 Five Star Schools THORNTON 35,747
St. Vrain Valley School District No. Re1J LONGMONT 31,894
Poudre School District R-1 FORT COLLINS 29,995
Boulder Valley School District No. Re2 BOULDER 28,485
Academy School District No. 20 in the county of El Paso an COLORADO SPRINGS 25,719
El Paso County Colorado School District 49 PEYTON 24,517
Colorado Springs School District No. 11 in the county of E COLORADO SPRINGS 22,725
School District 27J BRIGHTON 22,713
GreeleySchool District No. 6 in the county of Weld and Sta GREELEY 22,200
Mesa County Valley School District No. 51 GRAND JUNCTION 20,762
State Charter School Institute DENVER 19,239
Thompson School District R-2J LOVELAND 15,083
Pueblo School District No. 60 in the county of Pueblo and PUEBLO 15,025
Littleton School District No. 6 in the county of Arapahoe LITTLETON 13,450
Harrison School District No. 2 in the county of El Paso an COLORADO SPRINGS 12,267
Pueblo County School District 70 PUEBLO 10,501
School District No. 3 in the county of El Paso and State of COLORADO SPRINGS 9,612
Weld County Reorganized School District No. Re-4 WINDSOR 8,227
Fountain School District No. 8 in the county of El Paso an FOUNTAIN 8,201
Westminster Public Schools WESTMINSTER 8,004
Mapleton School District No. 1 in the county of Adams & St DENVER 7,088
Eagle County School District No. Re 50 EAGLE 6,620
Lewis-Palmer Consolidated School District No. 38 in the co MONUMENT 6,496
Montrose County School District Re-1J MONTROSE 6,029
Roaring Fork School District No. Re-1 CARBONDALE 5,771
School District N. 14 in the county of Adams & State of Colo COMMERCE CITY 5,692
Byers School District No. 32J BYERS 5,671
Durango School District No. 9-R DURANGO 5,452
Garfield School District No. Re-2 RIFLE 4,662
Delta County Joint District No. 50 DELTA 4,592
EDUCATION REENVISIONED BOCES MONUMENT 3,937
Weld County School District No. Re-5J MILLIKEN 3,869
Cheyenne Mountain School District No. 12 in the county of E COLORADO SPRINGS 3,737
Summit School District No. Re 1 FRISCO 3,633
School District No. Re-3 Fort Morgan FORT MORGAN 3,423
Fremont Re-1 CANON CITY 3,305
Weld County School District RE-3J HUDSON 2,785
Steamboat Springs School District No. Re 2 STEAMBOAT SPRINGS 2,664
Weld re-8 schools FORT LUPTON 2,522
Montezuma-Cortez School District No. Re-1 CORTEZ 2,449
Englewood School District No. 1 in the county of Arapahoe ENGLEWOOD 2,441
ELIZABETH SCHOOL DISTRICT ELIZABETH 2,379
Alamosa School District No. Re-11J ALAMOSA 2,116
Moffat County School District RE: No. 1 CRAIG 2,092
Gunnison Watershed School District Re1J GUNNISON 2,061
Woodland Park School District No. Re-2 WOODLAND PARK 2,010
Weld County School District No. Re-2 EATON 1,977
School District No. Re-1 Valley STERLING 1,972
Weld County Reorganized School District No. Re-1 GILCREST 1,837
Archuleta County School District No. 50 Jt PAGOSA SPRINGS 1,678
Aspen School District No. 1 in the county of Pitkin and Sta ASPEN 1,572
Lamar School District No. Re-2 LAMAR 1,522
Fremont Re-2 FLORENCE 1,390
School District No. Re-2 Brush BRUSH 1,366
East Otero School District No. R1 LA JUNTA 1,355
Salida School District No. R-32 SALIDA 1,327
Manitou Springs School District No. 14 in the county of El MANITOU SPRINGS 1,317
Bennett School District No. 29J BENNETT 1,296
East Grand School District No. 2 GRANBY 1,283
Bayfield School District No. 10Jt-R BAYFIELD 1,279
Strasburg School District 31J STRASBURG 1,209
Grand Valley School District No. 16 in the county of Garfi PARACHUTE 1,198
Sheridan School District No. 2 ENGLEWOOD 1,125
Weld County School District No. Re-7 KERSEY 1,094
Monte Vista School District No. C-8 MONTE VISTA 1,033
Buena Vista School District No. R-31 BUENA VISTA 1,032
Estes Park School District R-3 ESTES PARK 1,014
Weld County School District No. Re-9 AULT 993
North Conejos School District No. Re1J LA JARA 988
Ellicott School District No. 22 in the county of El Paso a ELLICOTT 981
Lake County School District No. R-1 LEADVILLE 979
Telluride School District No. R-1 TELLURIDE 895
Yuma 1 School District YUMA 886
School District No. Re-50 Wiggins WIGGINS 862
Las Animas School District No. Re-1 LAS ANIMAS 822
Platte Canyon School District No. 1 of the county of Park BAILEY 797
Trinidad School District 1 in the county of Las Animas and TRINIDAD 796
Burlington Public School District No. RE-6J BURLINGTON 762
Wray RD-2 School District WRAY 724
Meeker School District Re1 MEEKER 712
Dolores School District No. Re-4A DOLORES 683
Clear Creek School District No. Re-1 IDAHO SPRINGS 680
Ignacio School District No. 11Jt IGNACIO 641
Rocky Ford School District No. R2 ROCKY FORD 632
Center Consolidated School District No. 26 Jt. of the count CENTER 607
Julesburg School District No. Re1 JULESBURG 607
Peyton School District No. 23 in the county of El Paso and PEYTON 600
Park County School District No. Re-2 FAIRPLAY 595
Holyoke School District No. Re-1J HOLYOKE 552
Mancos School District Re-6 MANCOS 509
Huerfano School District Re-1 WALSENBURG 491
Rangely School District RE4 RANGELY 488
Limon School District No. Re 4J LIMON 457
Hayden School District No. Re 1 HAYDEN 454
Branson Reorganized School District No. 82 BRANSON 442

Showing top 100 of 185 districts by enrollment.

Source: NCES Common Core of Data As of 2024-25 Local Education Agency Universe Federal universe survey of all U.S. school districts

Largest Schools in Colorado

Other States

Side-by-side: Compare School District No. 1 in the county of Denver and State of C vs Jefferson County School District No. R-1 → · Compare any two districts

Data sourced from NCES Common Core of Data (CCD) 2022-23, NCES F-33 School District Finance Survey, and Civil Rights Data Collection (CRDC) 2021-22.

Frequently Asked Questions

How many public schools are in Colorado?

Colorado has 1,923 public schools across 185 school districts, serving 871,440 students.

What is the average student-teacher ratio in Colorado?

The average student-teacher ratio in Colorado public schools is 16.9:1. This varies by district — use the district table below to compare.

What percentage of Colorado students qualify for free lunch?

38.5% of students in Colorado qualify for free or reduced-price lunch, an indicator of economic need used for Title I funding.

What is the largest school district in Colorado?

The largest school district in Colorado is School District No. 1 in the county of Denver and State of C with 87,883 students across 203 schools.

Why does per-pupil spending vary so much across Colorado districts?

Colorado districts spend between $9,082 and $95,640 per pupil — a 10.5× range. Most U.S. states fund schools through a mix of state aid (typically 40-60%), local property tax (30-50%), and federal Title I (5-15%). Districts in higher property-value areas raise more per pupil from local taxes, while state aid is intended to partially equalise but rarely closes the full gap. The federal F-33 finance survey reports actual current expenditures including instructional and support services.

Top schools in Colorado by enrollment

Largest K-12 public schools by total students enrolled

students

What this shows The largest public schools in Colorado by enrollment — often statewide virtual academies or large consolidated campuses, so size here reflects reach, not quality.

Source NCES Common Core of Data (CCD) As of 2024-25

Source: National Center for Education Statistics (NCES) Common Core of Data (CCD) — Public school universe · 2023-2024 Public K-12 school enrollment, demographics, and operational data; collected annually by NCES from state education agencies.