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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
161.3%Funding vs. Needi
District Detail
At or above 100% of adequacy — fully funded
The state estimates it costs $57.3M to adequately educate all students in this district. The district currently has $113.3M in resources — that's 197.77% of what it needs. This district meets or exceeds its funding target.
What it needsi
$57.3M
What it hasi
$113.3M
From the statei
$2.4M
This district is better funded than 100% of districts statewide.
At or above 100% of adequacy — fully funded
The state estimates it costs $42.7M to adequately educate all students in this district. The district currently has $60.2M in resources — that's 141.14% of what it needs. This district meets or exceeds its funding target.
What it needsi
$42.7M
What it hasi
$60.2M
From the statei
$2.8M
This district is better funded than 95% of districts statewide.
Below 60% of adequacy — receives the largest share of new state funding
The state estimates it costs $6.2M to adequately educate all students in this district. The district currently has $13.2M in resources — that's 2.13% of what it needs. This district meets or exceeds its funding target.
What it needsi
$6.2M
What it hasi
$13.2M
From the statei
$276K
This district is better funded than 0% of districts statewide.
Statewide Tier Distributioni