What is the Evidence-Based Funding (EBF) model?

State funding formulas calculate an 'adequacy target' for each district based on student needs (poverty, English learners, special education) and compare it to available local resources. Districts furthest from their target receive the most new state funding.

What does the funding gap mean?

The funding gap is the difference between what a district needs (its adequacy target) and what it currently receives from all sources. A district at 90% of its adequacy target has a 10% funding gap. States aim to bring all districts to at least 90% adequacy over time.

How are EBF tiers determined?

Districts are grouped into four tiers based on their percentage of adequacy: Tier 1 (below 70%), Tier 2 (70-90%), Tier 3 (90-100%), and Tier 4 (above 100%). New state funding flows primarily to Tier 1 and Tier 2 districts to close the biggest gaps first.

Channahon, IL School Funding Gaps & Adequacy

CSAChicago-Naperville MSAChicago-Naperville-Elgin#95/341 Income

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School Funding — FY2026i

NCES

State funding formulas determine whether your school districts have enough money. Here's where they stand.

How School Funding Works

State funding formulas calculate an Adequacy Target for each district, the estimated cost to provide an adequate education. Districts are then compared against 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: State Education Funding Data

Avg % of Adequacyi

87.7%

Adequacy Gapi

$58.2M

Funding vs. Needi

Joliet Twp HS Dist 20473.96%

$90.7M funded$122.7M target

Minooka Comm Cons S Dist 20189.04%

$51.3M funded$57.6M target

Troy Comm Cons SCH Dist 30c90.52%

$50.9M funded$56.2M target

Minooka Comm H S District 11182.6%

$36.3M funded$44.0M target

Coal City C U School District 1104.04%

$29.2M funded$28.1M target

Wilmington C U SCH Dist 209u77.09%

$14.1M funded$18.3M target

Channahon School District 17147.67%

$22.1M funded$15.0M target

Morris Comm High SCH Dist 10183.29%

$12.1M funded$14.5M target

Saratoga Comm Cons S Dist 60c97.18%

$10.5M funded$10.8M target

District Detail

Joliet Twp HS Dist 204Tier 2

73.96% funded$31.9M gap

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.

Minooka Comm Cons S Dist 201Tier 2

89.04% funded$6.3M gap

60-90% of adequacy — receives moderate new state funding

The state estimates it costs $57.6M to adequately educate all students in this district. The district currently has $51.3M in resources — that's 89.04% of what it needs. There's a $6.3M gap between what the district has and what it needs.

What it needsi

$57.6M

What it hasi

$51.3M

From the statei

$16.1M

This district is better funded than 65% of districts statewide.

Troy Comm Cons SCH Dist 30cTier 3

90.52% funded$5.3M gap

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.

Minooka Comm H S District 111Tier 2

82.6% funded$7.7M gap

60-90% of adequacy — receives moderate new state funding

The state estimates it costs $44.0M to adequately educate all students in this district. The district currently has $36.3M in resources — that's 82.6% of what it needs. There's a $7.7M gap between what the district has and what it needs.

What it needsi

$44.0M

What it hasi

$36.3M

From the statei

$9.7M

This district is better funded than 57% of districts statewide.

Coal City C U School District 1Tier 4

104.04% funded

At or above 100% of adequacy — fully funded

The state estimates it costs $28.1M to adequately educate all students in this district. The district currently has $29.2M in resources — that's 104.04% of what it needs. This district meets or exceeds its funding target.

What it needsi

$28.1M

What it hasi

$29.2M

From the statei

$1.4M

This district is better funded than 80% of districts statewide.

Wilmington C U SCH Dist 209uTier 2

77.09% funded$4.2M gap

60-90% of adequacy — receives moderate new state funding

The state estimates it costs $18.3M to adequately educate all students in this district. The district currently has $14.1M in resources — that's 77.09% of what it needs. There's a $4.2M gap between what the district has and what it needs.

What it needsi

$18.3M

What it hasi

$14.1M

From the statei

$3.3M

This district is better funded than 38% of districts statewide.

Channahon School District 17Tier 4

147.67% funded

At or above 100% of adequacy — fully funded

The state estimates it costs $15.0M to adequately educate all students in this district. The district currently has $22.1M in resources — that's 147.67% of what it needs. This district meets or exceeds its funding target.

What it needsi

$15.0M

What it hasi

$22.1M

From the statei

$562K

This district is better funded than 96% of districts statewide.

Morris Comm High SCH Dist 101Tier 2

83.29% funded$2.4M gap

60-90% of adequacy — receives moderate new state funding

The state estimates it costs $14.5M to adequately educate all students in this district. The district currently has $12.1M in resources — that's 83.29% of what it needs. There's a $2.4M gap between what the district has and what it needs.

What it needsi

$14.5M

What it hasi

$12.1M

From the statei

$3.7M

This district is better funded than 59% of districts statewide.

Saratoga Comm Cons S Dist 60cTier 3

97.18% funded$303K gap

90-100% of adequacy — receives limited new state funding

The state estimates it costs $10.8M to adequately educate all students in this district. The district currently has $10.5M in resources — that's 97.18% of what it needs. There's a $303K gap between what the district has and what it needs.

What it needsi

$10.8M

What it hasi

$10.5M

From the statei

$1.2M

This district is better funded than 73% of districts statewide.

Statewide Tier Distributioni

Tier 1: 36

Tier 2: 579 (yours)

Tier 3: 96 (yours)

Tier 4: 221 (yours)