Kelso High School
🇺🇸 Official data · 2025Kelso, Washington 98626 · Kelso School District
#253 of 333 high schools in Washington
#10870 of 16,910 nationally
About Kelso High School
Kelso High School is a public high located in Kelso, in the Kelso School District school district of Washington, United States. It caters for Grades 9–12. In 2025 it enrolled 1,390 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 40.4 out of 100, placing it in the lower 50% of high schools in United States and 253rd of 333 ranked high schools in Washington. Its strongest component is reading proficiency (68th percentile), and its weakest is math proficiency (18th percentile).
Other published figures: enrollment 1,390.
There are 10 schools in Kelso; Kelso High School ranks 4th of 9 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)20%
- Reading proficiency (30%)66%
- Community advantage (fewer free/reduced-price lunch) (25%)54.2%
- Students per teacher (15%)19.0
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Kelso High School by the official sources.
- Enrollment
- 1,390
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 54.2%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 19.0
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 66%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 20%
- Share of tested students proficient or above (all students, all grades).
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Schools near Kelso High School
Closest schools by straight-line distance, with their Success Index (US).
Coweeman Middle School
Kelso · Public middle · Grades 6–8
501 students · 272 m away
Butler Acres Elementary
Kelso · Public elementary · Grades K–5
426 students · 867 m away
Huntington Middle School
Kelso · Public middle · Grades 6–8
559 students · 1.5 km away
Wallace Elementary
Kelso · Public elementary · Grades K–5
333 students · 1.9 km away
Kelso Virtual Academy
Kelso · Public other · Grades K–12
216 students · 2.1 km away
Cowlitz County Youth Services Center
Longview · Public high · Grades 6–12
14 students · 2.1 km away
Barnes Elementary
Kelso · Public elementary · Grades K–5
343 students · 2.2 km away
Mark Morris High School
Longview · Public high · Grades 9–12
912 students · 3.4 km away
Columbia Heights Elementary
Longview · Public elementary · Grades K–5
331 students · 3.9 km away
Northlake Elementary School
Longview · Public elementary · Grades K–5
315 students · 4.0 km away
Similar schools
Public high schools in Washington with a comparable Enrollment.
Ingraham High School
Seattle · Public high · Grades 9–12
1,391 students
Stanwood High School
Stanwood · Public high · Grades 9–12
1,384 students
Marysville Getchell High School
Marysville · Public high · Grades 9–12
1,381 students
Central Valley High School
Spokane Valley · Public high · Grades 9–12
1,380 students
Timberline High School
Lacey · Public high · Grades 9–12
1,401 students
North Thurston High School
Lacey · Public high · Grades 9–12
1,378 students
Frequently asked questions
Is Kelso High School a good school?
Kelso High School has a Success Index (US) of 40.4 out of 100 (Lower 50% of high schools in United States) and ranks #253 of 333 in Washington. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Kelso High School rank in Washington?
Kelso High School ranks #253 of 333 high schools in Washington and #10870 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Kelso High School?
Kelso High School had 1,390 students in 2025.
Is Kelso High School a elementary school or a high school?
Kelso High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Kelso High School?
There are 10 schools within 15 km of Kelso High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.