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Illinois uses Evidence-Based Funding to determine whether CUSD 4 has enough money. Here's where it stands. 60-90% of adequacy — receives moderate new state funding.
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
80.5%Adequacy Gapi
$1.7MFunding vs. Needi
District Detail
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $8.9M to adequately educate all students in this district. The district currently has $7.2M in resources — that's 80.47% of what it needs. There's a $1.7M gap between what the district has and what it needs.
What it needsi
$8.9M
What it hasi
$7.2M
From the statei
$2.9M
This district is better funded than 51% of districts statewide.
Statewide Tier Distributioni