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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
80.2%Adequacy Gapi
$71.3MFunding vs. Needi
District Detail
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $162.9M to adequately educate all students in this district. The district currently has $128.8M in resources — that's 79.1% of what it needs. There's a $34.1M gap between what the district has and what it needs.
What it needsi
$162.9M
What it hasi
$128.8M
From the statei
$108.5M
This district is better funded than 46% of districts statewide.
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $122.7M to adequately educate all students in this district. The district currently has $90.7M in resources — that's 73.96% of what it needs. There's a $31.9M gap between what the district has and what it needs.
What it needsi
$122.7M
What it hasi
$90.7M
From the statei
$25.3M
This district is better funded than 25% of districts statewide.
90-100% of adequacy — receives limited new state funding
The state estimates it costs $56.2M to adequately educate all students in this district. The district currently has $50.9M in resources — that's 90.52% of what it needs. There's a $5.3M gap between what the district has and what it needs.
What it needsi
$56.2M
What it hasi
$50.9M
From the statei
$5.4M
This district is better funded than 66% of districts statewide.
At or above 100% of adequacy — fully funded
The state estimates it costs $4.1M to adequately educate all students in this district. The district currently has $5.3M in resources — that's 129.63% of what it needs. This district meets or exceeds its funding target.
What it needsi
$4.1M
What it hasi
$5.3M
From the statei
$673K
This district is better funded than 93% of districts statewide.
Statewide Tier Distributioni