📊 What this ranking measures
Rankings are based on academic achievement — the share of students scoring proficient or above on state reading and math assessments (CMAS 2025), ranked against other districts in the same state — not on spending, district size, or staffing. See full methodology →
All 7 Rated Districts in Arapahoe County, CO
Sorted by rating, then state percentile
| County Rank | District | District Office | Rating | State Percentile |
|---|---|---|---|---|
| #1 | Littleton School District 6 | Littleton | 10/10 Excellent | 95th |
| #2 | Cherry Creek School District 5 | Greenwood Village | 9/10 Excellent | 83rd |
| #3 | Byers School District 32J | Byers | 7/10 Good | 65th |
| #4 | Englewood School District 1 | Englewood | 4/10 Below Average | 38th |
| #5 | Adams-Arapahoe School District 28J | Aurora | 2/10 Poor | 19th |
| #6 | Deer Trail School District 26J | Deer Trail | 1/10 Poor | 7th |
| #7 | Sheridan School District 2 | Englewood | 1/10 Poor | 1st |
Best School Districts in Arapahoe County, Colorado (2026)
This page lists the 7 public school districts headquartered in Arapahoe County, Colorado that have a SchoolDistrictFinder rating, scored using CMAS 2025 state assessment data. The county rank is simply their order here; the state percentile compares each district with every rated district in Colorado, which is how the 1–10 rating is set. Ratings are not comparable with districts in other states.
Districts are placed in the county of their NCES directory listing. A district's boundaries can cross county lines, and a home in Arapahoe County may be served by a district headquartered next door — search your address or zip code to confirm.
Frequently Asked Questions
What is the best-rated school district in Arapahoe County, Colorado? ▼
Among the 7 rated districts in Arapahoe County, Colorado, the highest-rated is Littleton School District 6 (Littleton), rated 10/10 (Excellent) and in the 95th percentile of Colorado districts on CMAS 2025 reading and math proficiency.
How are these rankings calculated? ▼
Each district's rating comes from the share of its students scoring proficient or above on state reading and math assessments (CMAS 2025), percentile-ranked against all rated districts in Colorado and converted to a 1–10 scale. Full methodology here.