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Illinois uses Evidence-Based Funding to determine whether Illini Central CUSD 189 has enough money. Here's where it stands. At or above 100% of adequacy — fully funded.
What is Evidence-Based Funding?
Illinois' Evidence-Based Funding (EBF) formula, enacted in 2017, calculates an Adequacy Target for each district — the estimated cost to provide an adequate education. It then compares each district's available resources to that target.
Districts are assigned to Tiers 1-4 based on their percentage of adequacy. Tier 1 districts (most underfunded) receive the largest share of new state funding.
Tier 1: Below 60% of adequacy
Tier 2: 60% to below 90% of adequacy
Tier 3: 90% to below 100% of adequacy
Tier 4: At or above 100% of adequacy
Source: ISBE Evidence-Based Funding
% of Adequacyi
110.7%Funding vs. Needi
District Detail
At or above 100% of adequacy — fully funded
The state estimates it costs $8.2M to adequately educate all students in this district. The district currently has $9.1M in resources — that's 110.73% of what it needs. This district meets or exceeds its funding target.
What it needsi
$8.2M
What it hasi
$9.1M
From the statei
$2.3M
This district is better funded than 86% of districts statewide.
Statewide Tier Distributioni