Affton High School
Public high school in St Louis, Missouri · Affton 101 School District · Grades 9–12
Affton High School serves 761 students in grades 9–12 in St Louis (St. Louis County). It is one of 4 schools in Affton 101 School District. By enrollment it is the 122nd largest of 558 public high schools in Missouri (median 268 students). With 14.8 students per full-time teacher, it has more students per teacher than the typical Missouri high school (12.2).
Source: NCES CCD 2024-25. Rank and medians compare all 558 Missouri high schools with enrollment listed on this site.
Source: NCES CCD 2024-25. Students per teacher = students ÷ 51.4 full-time-equivalent teachers.
School facts
| School type | Regular School |
| Level | High |
| Grades | 9–12 |
| District | Affton 101 School District |
| County | St. Louis County |
| Area type | Suburb, large |
| School meals | National School Lunch Program, free or reduced price for eligible students |
| NCES school ID | 290291000009 |
Source: NCES CCD 2024-25 directory and school characteristics; area type from NCES EDGE locale codes.
Compared with the district and Missouri
| This school | Affton 101 | Missouri high schools (median) | |
|---|---|---|---|
| Students | 761 | 2,619 | 268 |
| Students per teacher | 14.8 | 14.4 | 12.2 |
| Free or reduced-price lunch eligible | 41.3% | 38.8% | 46.2% |
Source: NCES CCD 2024-25. District figures add up its schools. 75% of Missouri high schools have fewer students per teacher than this school (share of schools with a lower ratio). State test results aren't published here yet.
Affton High School in context
Size
Affton High School is the only high school in Affton 101 School District. Its 761 students are 29.1% of the district's 2,619. Its 8 closest high schools sit a median 3.3 miles away with a median enrollment of 501; Affton High School is larger than most of them.
Source: NCES CCD 2024-25 enrollment and school type. Share of district students = this school's students ÷ the district's students. Nearest schools by straight-line distance between NCES EDGE locations.
Grades
Its largest grade is grade 10 with 198 students, and its smallest is grade 12 with 179, against an average of 190 per grade. Its first and last grades are close in size: 186 in grade 9 and 179 in grade 12.
Source: NCES CCD 2024-25 membership by grade.
Students
The largest group is White students: 67.5% here and 69.4% across Affton 101. Black students are next, at 10.5%. Students from all 7 race and ethnicity groups NCES reports are enrolled.
41.3% of its students are eligible for free or reduced-price lunch, against 38.8% across Affton 101 and a median of 46.2% for Missouri high schools. 16.3% are directly certified for free meals, meaning their families take part in programs such as SNAP or TANF, so no application was needed. Families apply for free or reduced-price meals, and eligibility depends on household income.
Source: NCES CCD 2024-25 membership and school lunch program data. District shares weight each school by its enrollment.
Teachers
With 51.4 full-time-equivalent teachers for 761 students, Affton High School has 14.8 students per teacher. At the median Missouri high school ratio of 12.2, a school with 761 students would have about 62.4 teachers, so Affton High School has 11 fewer.
Source: NCES CCD 2024-25. Expected teachers = this school's students ÷ the median students per teacher of Missouri high schools (12.2).
Location
Affton High School is in an urbanized area of 250,000 people or more, outside its principal city, which NCES calls suburb, large. The nearest other high school is Bayless Senior High School, 1.3 miles away in Bayless School District. Within 10 miles there are 41 other high schools, 13 of them within 5 miles.
Source: NCES EDGE school locations and locale codes, 2024-25. Distances are straight lines.
Students by race and ethnicity
| White | 67.5% |
| Black | 10.5% |
| Two or more races | 8.7% |
| Hispanic | 8.5% |
| Asian | 4.3% |
| Native Hawaiian or Pacific Islander | 0.3% |
| American Indian or Alaska Native | 0.1% |
45.6% of students are girls and 54.4% are boys.
Source: NCES CCD 2024-25 membership.
Students by grade
| Grade 9 | 186 |
| Grade 10 | 198 |
| Grade 11 | 198 |
| Grade 12 | 179 |
Source: NCES CCD 2024-25 membership.
Location and contact
8309 Mackenzie Rd, St Louis, MO 63123
Phone: (314)638-6330
Website: afftonschools.net
Locations: NCES EDGE. Map data © OpenStreetMap contributors.
Red: Affton High School. Blue: the nearest high schools.
Nearby high schools
| School | District | Distance | Students | Per teacher | Free/reduced lunch |
|---|---|---|---|---|---|
| Bayless Senior High School | Bayless | 1.3 mi | 562 | 18.6 | 62.1% |
| Community Access Job Training | St. Louis City | 2.2 mi | 85 | 5 | 100% |
| Webster Groves High School | Webster Groves | 2.5 mi | 1,253 | 14.1 | 13.8% |
| Southview High School | Specl. School Dst. St. Louis County | 3.3 mi | 66 | 3.1 | 22.7% |
| Mehlville High School | Mehlville R-IX | 3.3 mi | 1,388 | 13.6 | 42.8% |
| Hancock Senior High School | Hancock Place | 3.4 mi | 369 | 12.7 | 100% |
| Lindbergh Senior High School | Lindbergh Schools | 3.5 mi | 2,304 | 17.6 | 14.8% |
| Maplewood-Richmond Hgts. High School | Maplewood-Richmond Heights | 3.8 mi | 439 | 13.3 | 31.7% |
Source: NCES CCD 2024-25. Distance in a straight line between NCES EDGE locations.
Other schools in Affton 101
| School | Level | Grades | Students |
|---|---|---|---|
| Gotsch Intermediate School | Elementary | 3–5 | 562 |
| Mesnier Primary School | Elementary | Pre-K–2 | 741 |
| Rogers Middle School | Middle | 6–8 | 555 |