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Showing latest fiscal year. Full funding history available with a paid plan. View plans →

School Funding — FY2026i

Source

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

165.6%

Funding vs. Needi

GLENBROOK HSD 225160.15%
$131.3M funded$82.0M target
NORTH SHORE SD 112149.88%
$78.9M funded$52.7M target
TOWNSHIP HIGH SCHOOL DIST 113198.55%
$99.5M funded$50.1M target
DEERFIELD SCHOOL DIST 109161.78%
$58.9M funded$36.4M target
NORTHBROOK SCHOOL DIST 28168.26%
$41.7M funded$24.8M target
NORTHBROOK ELEM SCHOOL DIST 27155.4%
$29.3M funded$18.8M target

District Detail

GLENBROOK HSD 225Tier 4
160.15% funded

At or above 100% of adequacy — fully funded

The state estimates it costs $82.0M to adequately educate all students in this district. The district currently has $131.3M in resources — that's 160.15% of what it needs. This district meets or exceeds its funding target.

What it needsi

$82.0M

What it hasi

$131.3M

From the statei

$3.4M

This district is better funded than 98% of districts statewide.

NORTH SHORE SD 112Tier 4
149.88% funded

At or above 100% of adequacy — fully funded

The state estimates it costs $52.7M to adequately educate all students in this district. The district currently has $78.9M in resources — that's 149.88% of what it needs. This district meets or exceeds its funding target.

What it needsi

$52.7M

What it hasi

$78.9M

From the statei

$3.4M

This district is better funded than 97% of districts statewide.

TOWNSHIP HIGH SCHOOL DIST 113Tier 4
198.55% funded

At or above 100% of adequacy — fully funded

The state estimates it costs $50.1M to adequately educate all students in this district. The district currently has $99.5M in resources — that's 198.55% of what it needs. This district meets or exceeds its funding target.

What it needsi

$50.1M

What it hasi

$99.5M

From the statei

$1.9M

This district is better funded than 100% of districts statewide.

DEERFIELD SCHOOL DIST 109Tier 4
161.78% funded

At or above 100% of adequacy — fully funded

The state estimates it costs $36.4M to adequately educate all students in this district. The district currently has $58.9M in resources — that's 161.78% of what it needs. This district meets or exceeds its funding target.

What it needsi

$36.4M

What it hasi

$58.9M

From the statei

$1.8M

This district is better funded than 98% of districts statewide.

NORTHBROOK SCHOOL DIST 28Tier 4
168.26% funded

At or above 100% of adequacy — fully funded

The state estimates it costs $24.8M to adequately educate all students in this district. The district currently has $41.7M in resources — that's 168.26% of what it needs. This district meets or exceeds its funding target.

What it needsi

$24.8M

What it hasi

$41.7M

From the statei

$1.1M

This district is better funded than 99% of districts statewide.

NORTHBROOK ELEM SCHOOL DIST 27Tier 4
155.4% funded

At or above 100% of adequacy — fully funded

The state estimates it costs $18.8M to adequately educate all students in this district. The district currently has $29.3M in resources — that's 155.4% of what it needs. This district meets or exceeds its funding target.

What it needsi

$18.8M

What it hasi

$29.3M

From the statei

$794K

This district is better funded than 97% of districts statewide.

Statewide Tier Distributioni

Tier 1: 36
Tier 2: 579
Tier 3: 96
Tier 4: 221 (yours)