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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
72.4%Adequacy Gapi
$22.9MFunding vs. Needi
District Detail
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $72.8M to adequately educate all students in this district. The district currently has $50.1M in resources — that's 68.8% of what it needs. There's a $22.7M gap between what the district has and what it needs.
What it needsi
$72.8M
What it hasi
$50.1M
From the statei
$33.0M
This district is better funded than 9% of districts statewide.
90-100% of adequacy — receives limited new state funding
The state estimates it costs $8.6M to adequately educate all students in this district. The district currently has $8.4M in resources — that's 97.33% of what it needs. There's a $230K gap between what the district has and what it needs.
What it needsi
$8.6M
What it hasi
$8.4M
From the statei
$1.1M
This district is better funded than 74% of districts statewide.
Statewide Tier Distributioni