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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
82.4%Adequacy Gapi
$130.9MFunding vs. Needi
District Detail
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $364.0M to adequately educate all students in this district. The district currently has $286.1M in resources — that's 78.59% of what it needs. There's a $77.9M gap between what the district has and what it needs.
What it needsi
$364.0M
What it hasi
$286.1M
From the statei
$141.0M
This district is better funded than 45% of districts statewide.
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $240.6M to adequately educate all students in this district. The district currently has $195.6M in resources — that's 81.3% of what it needs. There's a $45.0M gap between what the district has and what it needs.
What it needsi
$240.6M
What it hasi
$195.6M
From the statei
$51.4M
This district is better funded than 53% of districts statewide.
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $59.9M to adequately educate all students in this district. The district currently has $52.6M in resources — that's 87.84% of what it needs. There's a $7.3M gap between what the district has and what it needs.
What it needsi
$59.9M
What it hasi
$52.6M
From the statei
$3.9M
This district is better funded than 64% of districts statewide.
At or above 100% of adequacy — fully funded
The state estimates it costs $19.2M to adequately educate all students in this district. The district currently has $26.4M in resources — that's 137.5% of what it needs. This district meets or exceeds its funding target.
What it needsi
$19.2M
What it hasi
$26.4M
From the statei
$1.4M
This district is better funded than 95% of districts statewide.
90-100% of adequacy — receives limited new state funding
The state estimates it costs $11.9M to adequately educate all students in this district. The district currently has $11.3M in resources — that's 94.38% of what it needs. There's a $670K gap between what the district has and what it needs.
What it needsi
$11.9M
What it hasi
$11.3M
From the statei
$1.2M
This district is better funded than 70% of districts statewide.
Statewide Tier Distributioni