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Public school district · Rural: Distant
Illinois · Mason County

Illini Central CUSD 189

640 students · 4 schools · 10.2:1 ratio · grades PreK–12 · #510 of 862 in Illinois

Students
640
Schools
4
Teachers (FTE)
62
Student–Teacher
10.2:1
County
Mason
Grades
PreK–12
OverviewEnrollmentDemographicsStaffingFundingPerformanceAccreditationCompareFull data
Overview

About Illini Central CUSD 189

Illini Central CUSD 189 is a public school system serving Mason County, Illinois, based in Mason City. It serves 640 students across 4 schools spanning PreK–12, and is classified as a rural: distant district. By enrollment it is the #510 largest of Illinois’s 862 school systems.

Phone2174825180
Address208 N West Ave, Mason City, IL 62664
CountyMason County
Enrollment & schools

Size and structure

Illini Central CUSD 189 enrolls 640 students in 4 schools — an average of about 160 students per school. It serves grades PreK–12 and ranks #510 of 862 statewide by enrollment.

Students
640
#510 of 862 in Illinois
Schools
4
~160 students each
Grade span
PreK–12
Rural: Distant
Students & demographics

Who the district serves

Student race and ethnicity in Illini Central CUSD 189, from the NCES Common Core of Data (640 students reported):

White
94%
Black
0%
Hispanic
3%
Asian
0%
Two or more
3%
Amer. Indian
0%
Pacific Isl.
0%

For economically-disadvantaged, English-learner, and special-education shares, plus school-by-school detail, see the federal sources in the full-data section.

Staffing & support

Teachers & staff

Illini Central CUSD 189 employs about 62 full-time-equivalent teachers for a student–teacher ratio of 10.2:1 — below the Illinois average of about 13.6:1, meaning comparatively smaller classes. Total district staff is roughly 162.

Student–teacher ratio
10.2:1
state avg ~13.6:1
Teachers (FTE)
62
classroom teachers
Total staff
162
all district employees

Counselor and librarian/media counts are not published at the district level in the current NCES release; see the federal full-data links for staffing detail.

Funding

How Illinois funds schools

Illinois distributes most state K-12 aid through Evidence-Based Funding (EBF) (2017): the state sets each district’s research-based Adequacy Target, compares its local resources to that target, and sorts districts into four tiers, steering most new money to the districts furthest below adequacy, while a Base Funding Minimum ensures no district receives less than the prior year. The law targets at least $350 million in new EBF funding each year.

District-level per-pupil spending and the local/state/federal revenue split for Illini Central CUSD 189 are published in the federal school-finance files — see the full-data links below for the current figures.

Accountability

Report card & state results

Illinois publishes the Illinois Report Card each year, reporting achievement and growth in English language arts and math, graduation, attendance, finances and climate, and assigns each school a summative designation (Exemplary, Commendable, Targeted or Comprehensive Support). Look up Illini Central CUSD 189 on the Illinois Report Card.

Accreditation

Accreditation status

Illinois does not use an outside accreditor for public districts; the Illinois State Board of Education grants official recognition status based on compliance with state standards, and private accreditation (for example through Cognia) is voluntary. See ISBE’s public-school recognition.

How it compares

Illini Central CUSD 189 vs. Illinois

Enrollment rank
#510
of 862 districts
Ratio
10.2:1
state avg ~13.6:1
Locale
Rural: Distant
Mason County

See every Illinois district side by side in the Illinois directory.

Go deeper

Look up Illini Central CUSD 189’s full data

These official sources carry the district-level detail — finances, discipline, equity, test scores, boundaries. Direct links for this district (via its NCES ID):

Data & sources

About this data

Enrollment, demographics, staffing, locale and contact details reflect the NCES Common Core of Data (2024–25); funding context from the Illinois State Board of Education (Evidence-Based Funding) and NEA Rankings & Estimates 2026. Figures are the latest available and may lag the current school year. This page is informational, not an official district record, and not affiliated with or endorsed by Illini Central CUSD 189. NCES District ID (LEAID): 1700113. Confirm current details with the district and the Illinois State Board of Education.