8 public K-12 schools in Seatac from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.
8 public schools ranked by quality score. NCES CCD 2024-25 data.
The highest-ranked of Seatac's 8 public schools is Glacier Middle School, scoring 51/100, against a city average of 41.1/100. Computed live across every Seatac campus reporting to NCES.
How the Seatac Public-School Landscape Breaks Down
Seatac, WA enrolls 4,314 students across 8 public schools reporting to the National Center for Education Statistics. The average student-teacher ratio across the city is 18.8:1, and the composite quality score, derived from student-teacher ratio, counselor access, gifted-program availability, and CRDC attendance data, averages 41.1/100. Schools must report at least five campuses in a city to appear in this listing, which is why very small towns may redirect to the broader county or state view.
The most-resourced campus in Seatac on this index is Glacier Middle School, at 51/100 on the Resource Investment Index with 803 enrolled students. What the index does and doesn't measure; click any school below for its full component breakdown.
Seatac spans 2 districts, each filing its own NCES F-33 return, per-pupil spending can vary between neighbouring campuses. Sort the table below by enrollment, level, or district; click any school for its full profile.
Glacier Middle School accounts for 18.6% of all Seatac public-school enrollment
That concentration means Seatac-wide averages can mask substantial variation outside the dominant entity. Grade level: Middle. A dominant campus often anchors a city's program landscape and absorbs a disproportionate share of district capital and staffing decisions. When one entity dominates a region's footprint, its programmatic and budget decisions effectively set policy for a majority of the affected population.
Seatac school enrollment varies 3.6× across entities
Seatac school enrollment ranges from 225 students (lowest) to 803 students (highest), a spread of 578 students. That relatively narrow ratio reflects an unusually homogeneous school portfolio for a city this size. Per-school staffing, programme depth, and capital-renovation cycles often diverge inside the same city based on enrollment shape, a 200-student magnet runs a different operational model than a 2,000-student comprehensive high school.
Seatac has higher-than-average Title I eligibility — 71.2% of the population qualifies for free or reduced-price lunch
free or reduced-price lunch eligibility is the federal threshold for Title I funding allocations, established under the Every Student Succeeds Act (ESSA, 2015). Eligibility here is approaching the 75% concentration-grant threshold; it does not yet unlock the extra funding tier but sits meaningfully above the baseline 50% majority mark. Regions with eligibility this high typically draw a substantially larger federal funding share relative to their local tax base, which can either offset or reinforce existing gaps depending on allocation policy.
Seatac student-teacher ratio is 18.8:1 — high (typically associated with larger urban scale or staffing constraints that have widened the headcount gap)
student-teacher ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE classroom teachers against total enrollment, push-in specialists, English-language aides, special-education co-teachers, and counselors are not included in most reporting Higher values may reflect larger urban scale or recent resource constraints that have widened the gap.
Most racially and ethnically mixed schools in Seatac
Ranked by the Simpson student-body diversity index (0-100) from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality.
The highest-ranked school in Seatac is Glacier Middle School with a quality score of 51/100. There are 8 public schools in Seatac with 4,314 total students.
How many schools are in Seatac, WA? ▼
Seatac has 8 public schools with a total enrollment of 4,314 students. Average student-teacher ratio: 18.8:1.
Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. Quality scores based on student-teacher ratio,
counselor access, gifted programs, and attendance. Schools must have 5+ in the city to be listed.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the NCES Common Core of Data (CCD). Consult a qualified professional before making decisions based on this data.
Read our methodology, which explains how this data is sourced, computed, and verified.
