Sangamon Valley High School

Located at 398 N Illinois St, in Niantic, Illinois, Sangamon Valley High School is a rural-scale four-year high school that caters to 204 students (grades 9 through 12), part of Sangamon Valley CUSD 9. Compared to the state average of about 834 students per school, that is 76% leaner than typical.

Sangamon Valley High School is one of 4 schools operated by Sangamon Valley CUSD 9, a district that caters to 634 students overall.

On demographics, Sangamon Valley High School records that nearly all students (90%) are White; the rest consists of 4% multiracial, 4% Hispanic. That is noticeably more White than the county at large, where the share is closer to 74%.

On the income-and-resources front, On paper, Sangamon Valley High School has 18 full-time-equivalent teachers, translating to a class-load average of around 11.3:1. The state averages around 13.8:1, so this campus is tighter than the state norm typical. About 66% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment.

Adjusting for the school's free-and-reduced-lunch share, Sangamon Valley High School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 33.3%, the actual is 30.9%, a residual of -2.4 points.

In the area at large, the surrounding county (Macon County) records that the typical household earns roughly $62,666 per year, 24% of adults hold a bachelor's degree or higher, and roughly 10% of residents live below the federal poverty line. Across Macon County's 43 public schools (combined enrollment of about 14,702 students), Sangamon Valley High School is one campus in the mix.

The closest other public school is Sangamon Valley Primary School, roughly 4.0 miles away. Within five miles, there are 3 other public schools. Among the 8 schools in that immediate cluster with test data (this one included), Sangamon Valley High School ranks 6th on composite proficiency, behind the local average of 37.6%.

The school occupies a small-town site.

Looking at the recent track record. Looking back 7 years, enrollment at Sangamon Valley High School has declined 9%, going from 225 students in 2018 to 204 in 2025. The student-to-teacher ratio tightened from 12.9:1 in 2018 to 11.3:1 today.

On allk12, recent activity here tends to focus on open house dates, ride-share offers, and field-trip permission slips. Posting is open to anyone connected to the school.