📊 What this ranking measures
Rankings are based on academic achievement — the share of students scoring proficient or above on state reading and math assessments (STAAR 2023), ranked against other districts in the same state — not on spending, district size, or staffing. See full methodology →
All 18 Rated Districts in Harris County, TX
Sorted by rating, then state percentile
Best School Districts in Harris County, Texas (2026)
This page lists the 18 public school districts headquartered in Harris County, Texas that have a SchoolDistrictFinder rating, scored using STAAR 2023 state assessment data. The county rank is simply their order here; the state percentile compares each district with every rated district in Texas, 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 Harris 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 Harris County, Texas? ▼
Among the 18 rated districts in Harris County, Texas, the highest-rated is Tomball Independent School District (Tomball), rated 10/10 (Excellent) and in the 95th percentile of Texas districts on STAAR 2023 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 (STAAR 2023), percentile-ranked against all rated districts in Texas and converted to a 1–10 scale. Full methodology here.