Southwestern High School is a public high school in Piasa, Macoupin County, Illinois. The campus is operated by Southwestern CUSD 9. Serving students in 9-12, the school enrolls approximately 370 students with 31.4 full-time equivalent teachers, maintaining a student-teacher ratio of 11.8:1 according to federal National Center for Education Statistics (NCES) records for the 2024-2025 school year.
School Information
NCES 2024-2025
Grades Offered
9-12
School Level
High School
School Type
Regular School
Locale Setting
Rural: Distant
Charter School
No
Operational Status
Open
NCES School ID
173150003320
State Identifier
IL-40-056-0090-26-400560090260001
County FIPS
17117
Physical Location Address
8226 Route 111
Piasa, IL 62079-2051
Piasa, IL 62079-2051
School District
Parent District
Southwestern CUSD 9
Operating Schools
5 schools
District Type
Regular Public School District
Central Office
Brighton, IL
Location Map
39.119, -90.14
Google Maps ›
Nearby Public Schools
Southwestern Middle School
0 mi
Middle • Piasa
Medora Intermediate School
3.8 mi
Middle • Medora
Brighton North Primary School
4.8 mi
Elementary • Brighton
Shipman Elem School
5.2 mi
Elementary • Shipman
Jersey Comm Alt Program JCAP
8.3 mi
High • Jerseyville