Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal
records, no number is typed in by an editor. District totals are aggregated directly from the schools reporting under this district in the source records. See our
editorial standards & corrections policy, the
methodology behind these numbers, or
report a data error. Data current as of June 2026.
Seneca, Illinois - 1 schools
An equity score of 49/100 ranks Seneca Twp Hsd 160 #128 of 763 districts in Illinois (state average 38). Derived live from how evenly resources are distributed across the district's schools.
At $35,140 per pupil, Seneca Twp Hsd 160 ranks #7 of 848 Illinois districts by per-pupil spending (Illinois districts). NCES F-33 finance data.
385
Total Enrollment
1
Schools
$35,140
Per-Pupil Spending
High
School Types
District-Level NCES Analysis
Seneca Twp Hsd 160 operates 1 public schools serving 385 students, placing it among the smallest districts in Illinois. The school portfolio breaks down into 1 high schools, a small enough portfolio that most families will interact with nearly every campus in the district at some point. These enrollment and school figures come from the NCES Common Core of Data (CCD) 2024-25 release, and the district is based in Lasalle County.
Per-pupil expenditure runs $35,140 according to the NCES F-33 School District Finance Survey, among the top 85 of 848 Illinois districts by per-pupil spending. See how Illinois compares in our national per-pupil spending analysis. The funding mix is 79.2% local, 17.6% state, and 3.2% federal, a local-revenue-heavy mix that leaves the district more exposed to property-tax swings and local ballot measures than state-funded peers. The district's equity score is 49/100, ranked #128 of 763 in Illinois against a state average of 38, notably more even than the typical district in the state for how evenly funding reaches its schools.
Academic infrastructure includes 1 of 1 schools offering Advanced Placement (3 AP courses district-wide), a 189:1 student-counselor ratio, that meets the ASCA-recommended benchmark, and 27.8% chronic absenteeism from the 2021-22 Civil Rights Data Collection. Demographically, the student body averages 84.7% White, 12.4% Hispanic or Latino, 0.3% Asian across the district's schools.
Its largest campus is Seneca High School, enrolling 378 students (100% of the district's total enrollment).
Seneca High School accounts for 98.2% of all Seneca Twp Hsd 160 student enrollment
That is an overwhelming concentration, leaving the rest of Seneca Twp Hsd 160 a distant remainder — means Seneca Twp Hsd 160-wide averages can mask substantial variation outside the dominant entity. Grade band: high. A single dominant campus often anchors a district's program offerings and staffing patterns; the share helps explain why district-wide averages may not reflect the typical neighbourhood-school experience. When one entity dominates a region's footprint, its programmatic and budget decisions effectively set policy for a majority of the affected population.
Seneca Twp Hsd 160 student-counselor ratio is 189:1 — low (typically associated with meeting or exceeding the American School Counselor Association (ASCA) recommended 250:1 benchmark, which correlates with stronger college and career counseling capacity)
student-counselor ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE counselors against total enrollment, districts that contract intervention or social-emotional staff outside the counselor classification may be under-counted Lower values often correlate with smaller scale and population characteristics rather than higher resource budgets per se.
Seneca Twp Hsd 160 chronic absenteeism rate is 27.8% — near the typical range (US average ~28) — aligned with the national post-pandemic baseline of roughly 28% chronic absenteeism
chronic absenteeism rate is the simplest comparative metric but it does not capture the full picture: a student is chronically absent if they miss ≥10% of enrolled days for any reason, illness, family obligations, or disengagement Variation between sub-units within Seneca Twp Hsd 160 is typically wider than the Seneca Twp Hsd 160-aggregate figure suggests.