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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
79.2%Adequacy Gapi
$93.4MFunding vs. Needi
District Detail
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $325.3M to adequately educate all students in this district. The district currently has $252.8M in resources — that's 77.72% of what it needs. There's a $72.5M gap between what the district has and what it needs.
What it needsi
$325.3M
What it hasi
$252.8M
From the statei
$84.9M
This district is better funded than 42% of districts statewide.
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $121.1M to adequately educate all students in this district. The district currently has $100.2M in resources — that's 82.72% of what it needs. There's a $20.9M gap between what the district has and what it needs.
What it needsi
$121.1M
What it hasi
$100.2M
From the statei
$34.3M
This district is better funded than 57% of districts statewide.
Statewide Tier Distributioni