Compiled from official source data by PlainSchools.
15 public K-12 schools in Issaquah from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.
According to NCES CCD 2024-25, Issaquah has more public-school enrollment than 76% of the 4,487 US cities in this directory. Issaquah's average Resource Investment Index ranks above most listed cities even though its student-teacher ratio is on the more crowded side of the national city distribution. That is a useful mismatch, not a contradiction: counselor access, gifted programs, and attendance can lift the composite while classroom staffing remains comparatively tight. Families should inspect the component scores on each school profile instead of reading the city index as a shorthand for small classes.
A full K–12 ladder sits inside the city boundary
Issaquah's list includes 5 elementary, 4 middle, and 2 high-school campuses, plus 4 combined-grade records. The city average spans every major grade stage, so the ranked table is more informative when read within level than as one interchangeable queue.
The composite and staffing measures point in different directions
Issaquah's average Resource Investment Index sits at the 67th percentile, while its teacher-staffing measure sits at the 25th percentile. The 42-point percentile gap is a reminder that the index is not a class-size score: counselors, gifted-program reporting, and attendance also affect it. Compare those components directly when two schools have similar index totals; the same headline score can arise from a different mix of reported resources.
City enrollment
Top 24%
School count
Top 23%
Resource Index average
67th percentile
Teacher staffing
25th percentile
Issaquah High School accounts for 27.9% of all Issaquah public-school enrollment
That dominant concentration means Issaquah-wide averages can mask substantial variation outside the largest entity. Grade level: High. The share measures enrollment concentration only; it does not establish how districts allocate programs, capital, or staff. Enrollment-weighted aggregates give this entity more weight than any smaller peer, while an unweighted entity average treats every record equally.
Issaquah school enrollment varies 58× across entities
Issaquah school enrollment ranges from 42 students (lowest) to 2,419 students (highest), a spread of 2,377 students. That ratio is among the widest observed and reflects extreme heterogeneity inside a single city, with small specialty programs listed alongside large comprehensive campuses. Per-school staffing and program breadth can differ sharply at opposite ends of that enrollment range, so the city average should not be treated as a typical campus.
Issaquah operates one school district — a single-district system
Issaquah's listed schools share one district boundary, budget authority, and reporting chain. That makes citywide and districtwide governance easier to compare, but it does not make individual campuses uniform: grade configuration, staffing, programs, and student need can still vary materially within the same school district.
Issaquah student-teacher ratio is 18.0:1 — near the typical range (US average ~15.7) — citywide staffing is neither unusually lean nor unusually crowded by this measure
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 Variation between sub-units within Issaquah is typically wider than the Issaquah-aggregate figure suggests.
Most racially and ethnically mixed schools in Issaquah
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.
Which Issaquah school has the highest Resource Investment Index? ▼
Challenger Elementary has the highest Resource Investment Index among the Issaquah schools in this federal-data comparison at 57/100. The index summarizes reported staffing, counseling, gifted-program, and attendance inputs; it is not an academic rating.
How many schools are in Issaquah, WA? ▼
Issaquah has 15 public schools with a total enrollment of 8,664 students. Average student-teacher ratio: 18:1.
Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. The Resource Investment Index uses reported student-teacher ratio,
counselor access, gifted programs, and attendance; it is not an academic rating. Cities must include at least five schools to be listed. This public-data comparison is for informational purposes:
verify current enrollment, attendance boundaries, and programs with the school district before acting. See the guide to understanding NCES data.
