13 public K-12 schools in Arlington from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.
13 public schools ranked by quality score. NCES CCD 2024-25 data.
The highest-ranked of Arlington's 13 public schools is Arlington High School, scoring 44/100, against a city average of 36.4/100. Computed live across every Arlington campus reporting to NCES.
How the Arlington Public-School Landscape Breaks Down
Arlington, WA enrolls 6,846 students across 13 public schools reporting to the National Center for Education Statistics. The average student-teacher ratio across the city is 18.6:1, and the composite quality score, derived from student-teacher ratio, counselor access, gifted-program availability, and CRDC attendance data, averages 36.4/100. 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 Arlington on this index is Arlington High School, at 44/100 on the Resource Investment Index with 1,650 enrolled students. What the index does and doesn't measure; click any school below for its full component breakdown.
Arlington spans 3 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.
Arlington High School accounts for 24.1% of all Arlington public-school enrollment
That concentration means Arlington-wide averages can mask substantial variation outside the dominant entity. Grade level: High. 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.
Arlington school enrollment varies 825× across entities
Arlington school enrollment ranges from 2 students (lowest) to 1,650 students (highest), a spread of 1,648 students. That ratio is an extreme outlier spread — among the widest gaps observed anywhere in this dataset. 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.
Arlington student-teacher ratio is 18.6:1 — 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 Arlington
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 Arlington is Arlington High School with a quality score of 44/100. There are 13 public schools in Arlington with 6,846 total students.
How many schools are in Arlington, WA? ▼
Arlington has 13 public schools with a total enrollment of 6,846 students. Average student-teacher ratio: 18.6:1.
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.
