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.

Fairview Heights, IL School Funding Gaps & Adequacy

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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

79.9%

Adequacy Gapi

$71.9M

Funding vs. Needi

Collinsville C U SCH Dist 1077.35%

$71.3M funded$92.2M target

Belleville Twp HS Dist 20168.8%

$50.1M funded$72.8M target

East St Louis School Dist 189102.4%

$70.4M funded$68.7M target

O Fallon C C School Dist 9075.03%

$37.2M funded$49.6M target

O Fallon Twp High SCH Dist 20373.14%

$27.2M funded$37.2M target

Wolf Branch SCH Dist 11373.86%

$7.5M funded$10.1M target

Central School Dist 10483.83%

$7.0M funded$8.4M target

Pontiac-W Holliday SCH Dist 105103.27%

$8.6M funded$8.3M target

Grant Comm Cons SCH Dist 11075.43%

$5.9M funded$7.8M target

District Detail

Collinsville C U SCH Dist 10Tier 2

77.35% funded$20.9M gap

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

The state estimates it costs $92.2M to adequately educate all students in this district. The district currently has $71.3M in resources — that's 77.35% of what it needs. There's a $20.9M gap between what the district has and what it needs.

What it needsi

$92.2M

What it hasi

$71.3M

From the statei

$35.5M

This district is better funded than 40% of districts statewide.

Belleville Twp HS Dist 201Tier 2

68.8% funded$22.7M gap

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

The state estimates it costs $72.8M to adequately educate all students in this district. The district currently has $50.1M in resources — that's 68.8% of what it needs. There's a $22.7M gap between what the district has and what it needs.

What it needsi

$72.8M

What it hasi

$50.1M

From the statei

$33.0M

This district is better funded than 9% of districts statewide.

East St Louis School Dist 189Tier 4

102.4% funded

At or above 100% of adequacy — fully funded

The state estimates it costs $68.7M to adequately educate all students in this district. The district currently has $70.4M in resources — that's 102.4% of what it needs. This district meets or exceeds its funding target.

What it needsi

$68.7M

What it hasi

$70.4M

From the statei

$60.5M

This district is better funded than 78% of districts statewide.

O Fallon C C School Dist 90Tier 2

75.03% funded$12.4M gap

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

The state estimates it costs $49.6M to adequately educate all students in this district. The district currently has $37.2M in resources — that's 75.03% of what it needs. There's a $12.4M gap between what the district has and what it needs.

What it needsi

$49.6M

What it hasi

$37.2M

From the statei

$17.2M

This district is better funded than 30% of districts statewide.

O Fallon Twp High SCH Dist 203Tier 2

73.14% funded$10.0M gap

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

The state estimates it costs $37.2M to adequately educate all students in this district. The district currently has $27.2M in resources — that's 73.14% of what it needs. There's a $10.0M gap between what the district has and what it needs.

What it needsi

$37.2M

What it hasi

$27.2M

From the statei

$13.5M

This district is better funded than 21% of districts statewide.

Wolf Branch SCH Dist 113Tier 2

73.86% funded$2.6M gap

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

The state estimates it costs $10.1M to adequately educate all students in this district. The district currently has $7.5M in resources — that's 73.86% of what it needs. There's a $2.6M gap between what the district has and what it needs.

What it needsi

$10.1M

What it hasi

$7.5M

From the statei

$1.7M

This district is better funded than 24% of districts statewide.

Central School Dist 104Tier 2

83.83% funded$1.4M gap

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

The state estimates it costs $8.4M to adequately educate all students in this district. The district currently has $7.0M in resources — that's 83.83% of what it needs. There's a $1.4M gap between what the district has and what it needs.

What it needsi

$8.4M

What it hasi

$7.0M

From the statei

$803K

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

Pontiac-W Holliday SCH Dist 105Tier 4

103.27% funded

At or above 100% of adequacy — fully funded

The state estimates it costs $8.3M to adequately educate all students in this district. The district currently has $8.6M in resources — that's 103.27% of what it needs. This district meets or exceeds its funding target.

What it needsi

$8.3M

What it hasi

$8.6M

From the statei

$679K

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

Grant Comm Cons SCH Dist 110Tier 2

75.43% funded$1.9M gap

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

The state estimates it costs $7.8M to adequately educate all students in this district. The district currently has $5.9M in resources — that's 75.43% of what it needs. There's a $1.9M gap between what the district has and what it needs.

What it needsi

$7.8M

What it hasi

$5.9M

From the statei

$2.4M

This district is better funded than 32% of districts statewide.

Statewide Tier Distributioni

Tier 1: 36

Tier 2: 579 (yours)

Tier 3: 96

Tier 4: 221 (yours)

Fairview Heights, IL School Funding Gaps & Adequacy