High · Regular · Grades 10 to 12

Johnston Senior High School, Johnston, IA

Johnston Senior High School is a public high school in Johnston, part of Johnston Comm School District. It enrolled 1,820 students in 2024-25, with 20.9 students per full-time teacher.

Enrollment and teachers

Students: 1,820
Teachers (FTE): 87.0
Students per teacher: 20.9
Grades: 10 to 12

This school's ratio is 5.4 higher than the district figure of 15.5. The Iowa average across schools is 14.4. Ratios count all teachers, including specialists, so they are lower than typical class sizes.

This school20.9

District15.5

Iowa14.4

United States15.3

School details

Address: 6500 NW 100th Street, Johnston, IA 50131
Phone: (515)278-0449
District: Johnston Comm School District
County: Polk County
Level: High
Type: Regular
Status: Open
Charter: No
Locale: Suburb: Large
NCES school ID: 191545000927

Location from NCES coordinates. Map data OpenStreetMap contributors. Open larger map

School meals

Counts of students eligible for free or reduced-price lunch, as reported to NCES.

Free lunch: 360
Reduced-price lunch: 47
Free or reduced-price lunch: 40722.4% of enrollment.
Community Eligibility Provision: No

Schools in the Community Eligibility Provision (CEP) serve free meals to all students, so their free lunch counts often reflect direct certification or total enrollment. Free and reduced lunch shares are not comparable between CEP and non-CEP schools.

Related schools

We publish official enrollment and staffing data, not ratings or test scores.

Source: NCES Common Core of Data 2024-25 and F-33 finance 2020, via the Urban Institute Education Data Portal. Last reviewed October 2026. Blank values are not available, not applicable or suppressed in the source. See the methodology.