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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
80.8%Adequacy Gapi
$28.6MFunding vs. Needi
District Detail
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $102.3M to adequately educate all students in this district. The district currently has $81.1M in resources — that's 79.31% of what it needs. There's a $21.2M gap between what the district has and what it needs.
What it needsi
$102.3M
What it hasi
$81.1M
From the statei
$15.3M
This district is better funded than 48% of districts statewide.
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $25.6M to adequately educate all students in this district. The district currently has $18.2M in resources — that's 70.94% of what it needs. There's a $7.5M gap between what the district has and what it needs.
What it needsi
$25.6M
What it hasi
$18.2M
From the statei
$8.3M
This district is better funded than 14% of districts statewide.
At or above 100% of adequacy — fully funded
The state estimates it costs $17.6M to adequately educate all students in this district. The district currently has $18.5M in resources — that's 104.91% of what it needs. This district meets or exceeds its funding target.
What it needsi
$17.6M
What it hasi
$18.5M
From the statei
$1.6M
This district is better funded than 81% of districts statewide.
Statewide Tier Distributioni