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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
93.4%Adequacy Gapi
$11.1MFunding vs. Needi
District Detail
90-100% of adequacy — receives limited new state funding
The state estimates it costs $96.2M to adequately educate all students in this district. The district currently has $86.9M in resources — that's 90.36% of what it needs. There's a $9.3M gap between what the district has and what it needs.
What it needsi
$96.2M
What it hasi
$86.9M
From the statei
$9.9M
This district is better funded than 66% of districts statewide.
At or above 100% of adequacy — fully funded
The state estimates it costs $23.2M to adequately educate all students in this district. The district currently has $25.1M in resources — that's 108.3% of what it needs. This district meets or exceeds its funding target.
What it needsi
$23.2M
What it hasi
$25.1M
From the statei
$2.1M
This district is better funded than 84% of districts statewide.
60-90% of adequacy — receives moderate new state funding
The state estimates it costs $8.5M to adequately educate all students in this district. The district currently has $6.7M in resources — that's 78.34% of what it needs. There's a $1.8M gap between what the district has and what it needs.
What it needsi
$8.5M
What it hasi
$6.7M
From the statei
$2.4M
This district is better funded than 44% of districts statewide.
At or above 100% of adequacy — fully funded
The state estimates it costs $7.4M to adequately educate all students in this district. The district currently has $7.6M in resources — that's 102.95% of what it needs. This district meets or exceeds its funding target.
What it needsi
$7.4M
What it hasi
$7.6M
From the statei
$2.0M
This district is better funded than 79% of districts statewide.
Statewide Tier Distributioni