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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
75%Adequacy Gapi
$1.6BFunding vs. Needi
District Detail
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $5.9B to adequately educate all students in this district. The district currently has $4.3B in resources — that's 73.27% of what it needs. There's a $1.6B gap between what the district has and what it needs.
What it needsi
$5.9B
What it hasi
$4.3B
From the statei
$1.7B
This district is better funded than 22% of districts statewide.
At or above 100% of adequacy — fully funded
The state estimates it costs $108.1M to adequately educate all students in this district. The district currently has $120.0M in resources — that's 111.02% of what it needs. This district meets or exceeds its funding target.
What it needsi
$108.1M
What it hasi
$120.0M
From the statei
$5.3M
This district is better funded than 86% of districts statewide.
At or above 100% of adequacy — fully funded
The state estimates it costs $72.0M to adequately educate all students in this district. The district currently has $87.0M in resources — that's 120.82% of what it needs. This district meets or exceeds its funding target.
What it needsi
$72.0M
What it hasi
$87.0M
From the statei
$8.1M
This district is better funded than 91% of districts statewide.
At or above 100% of adequacy — fully funded
The state estimates it costs $64.2M to adequately educate all students in this district. The district currently has $73.0M in resources — that's 113.75% of what it needs. This district meets or exceeds its funding target.
What it needsi
$64.2M
What it hasi
$73.0M
From the statei
$9.4M
This district is better funded than 87% of districts statewide.
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $23.0M to adequately educate all students in this district. The district currently has $16.6M in resources — that's 72.22% of what it needs. There's a $6.4M gap between what the district has and what it needs.
What it needsi
$23.0M
What it hasi
$16.6M
From the statei
$4.0M
This district is better funded than 18% of districts statewide.
Below 60% of adequacy — receives the largest share of new state funding
The state estimates it costs $3.1M to adequately educate all students in this district. The district currently has $8.7M in resources — that's 2.81% of what it needs. This district meets or exceeds its funding target.
What it needsi
$3.1M
What it hasi
$8.7M
From the statei
$271K
This district is better funded than 2% of districts statewide.
Statewide Tier Distributioni