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Illinois uses Evidence-Based Funding to determine whether your school districts have enough money. Here's where they stand.
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
Avg % of Adequacyi
161%Funding vs. Needi
District Detail
At or above 100% of adequacy — fully funded
The state estimates it costs $81.3M to adequately educate all students in this district. The district currently has $135.1M in resources — that's 166.18% of what it needs. This district meets or exceeds its funding target.
What it needsi
$81.3M
What it hasi
$135.1M
From the statei
$4.7M
This district is better funded than 99% of districts statewide.
At or above 100% of adequacy — fully funded
The state estimates it costs $18.0M to adequately educate all students in this district. The district currently has $25.3M in resources — that's 140.07% of what it needs. This district meets or exceeds its funding target.
What it needsi
$18.0M
What it hasi
$25.3M
From the statei
$1.2M
This district is better funded than 95% of districts statewide.
Statewide Tier Distributioni