Is $40,000 a good salary in Illinois?

$40,000 in Illinois provides a monthly take-home of approximately $2,689 after taxes. Across major Illinois cities, this salary is rated manageable, with an average monthly surplus of $259.

What is the cost of living on $40,000 in Illinois?

The average monthly living cost across major Illinois cities is approximately $2,430 for a single adult (rent, food, transport, utilities, healthcare). On $40,000 take-home pay of $2,689/month, you would have roughly $259/month remaining.

Living in Illinois · 2026

Is $40,000 enough to live in Illinois?

Single adult · IL · 2026 tax brackets · Real cost-of-living data

Statewide verdict:Manageable

Monthly take-home

$2,689

Avg monthly expenses

$2,430

Avg monthly surplus

$259

Savings potential

~10%

After-tax take-home in Illinois

Gross salary$40,000

Federal income tax− $2,694

State income tax− $1,980

Social Security− $2,480

Medicare− $580

Annual take-home$32,266

Effective tax rate19.34%

How $40,000 feels in Illinois cities

Rent: HUD FMR 2026 · Food: USDA Low-Cost Plan × COL · Transport/Utilities/Healthcare: BLS CES × COL

Chicago

COL index: 1.38× national avg

Not recommended

Rent (1BR)

$2,000

Food

$519

Transport

$241

Utilities

$228

Healthcare

$276

Total: $3,264/mo

Surplus: $-575/mo

Rent burden: 74.4% — Unaffordable (> 50%)

Full Chicago analysis →

Aurora

COL index: 1.08× national avg

Manageable

Rent (1BR)

$1,400

Food

$493

Transport

$189

Utilities

$178

Healthcare

$216

Total: $2,476/mo

Surplus: $213/mo

Rent burden: 52.1% — Unaffordable (> 50%)

Full Aurora analysis →

Naperville

COL index: 1.18× national avg

Very tight

Rent (1BR)

$1,600

Food

$528

Transport

$207

Utilities

$195

Healthcare

$236

Total: $2,766/mo

Surplus: $-77/mo

Rent burden: 59.5% — Unaffordable (> 50%)

Full Naperville analysis →

Joliet

COL index: 1.00× national avg

Manageable

Rent (1BR)

$1,250

Food

$462

Transport

$175

Utilities

$165

Healthcare

$200

Total: $2,252/mo

Surplus: $437/mo

Rent burden: 46.5% — High (35–50%)

Full Joliet analysis →

Rockford

COL index: 0.91× national avg

Comfortable

Rent (1BR)

$1,050

Food

$409

Transport

$159

Utilities

$150

Healthcare

$182

Total: $1,950/mo

Surplus: $739/mo

Rent burden: 39.1% — High (35–50%)

Full Rockford analysis →

Springfield

COL index: 0.88× national avg

Comfortable

Rent (1BR)

$1,000

Food

$396

Transport

$154

Utilities

$145

Healthcare

$176

Total: $1,871/mo

Surplus: $818/mo

Rent burden: 37.2% — High (35–50%)

Full Springfield analysis →

50 / 30 / 20 Budget Planner

Based on your monthly take-home of $2,689 ($32,268/yr)

Needs 50%Wants 30%Savings 20%

Needs50%

$1,345

per month

›Rent / mortgage
›Groceries
›Utilities
›Insurance
›Minimum debt payments
›Transportation

Wants30%

$807

per month

›Dining out
›Streaming services
›Gym
›Hobbies
›Travel
›Shopping

Savings20%

$538

per month

›Emergency fund
›401(k) / IRA
›Investments
›Down payment fund
›Debt payoff (extra)

Needs / year

$16,134

Wants / year

$9,680

Savings / year

$6,454

Salary Intelligence

Financial pressure in Chicago

Rent alone would take 74% of take-home income. This salary creates significant financial pressure in this city — a $80,000 annual income or lower rent is needed to reach affordability.

Lifestyle score: 1.2/10 (Difficult)

Lifestyle Assessment

A $40,000 salary does not fully cover typical living expenses for a single adult in Chicago, Illinois. Monthly costs exceed take-home pay by $575, indicating this income is insufficient for an independent lifestyle here without additional income or reduced spending.

Purchasing Power

Chicago's above-average cost of living (index: 1.38) means $40,000 provides the purchasing power of roughly $28,986 in an average-cost US city, or $34,203 in Austin. Moving to a lower-cost state could effectively increase your take-home by thousands.

State & National Benchmark

$40,000 is 12% below the Illinois individual median of $45,700. Consider negotiating a higher salary or exploring higher-paying roles in this state.

State individual median

$45,700

-12%

State household median

$78,433

-49%

Tax reduction strategies

Maximize 401(k) Contributions — Up to $5,170 in federal tax (22% bracket)

Contribute to a Traditional IRA — Up to $1,540 in federal tax (22% bracket)

$40,000 vs. Illinois income benchmarks

Individual median (Illinois)

$45,700

-12% vs. this salary

Household median (Illinois)

$78,433

-49% vs. this salary

Source: US Census Bureau ACS 2023

Related salary insights

Explore other salary levels in Illinois

$40,000 $60,000 $100,000 $150,000 $200,000 $300,000

Reviewed by

Finance Editor

CPA, 10+ years in personal finance

Data Sources

•Tax calculations: IRS federal tax tables
•Rent data: HUD Fair Market Rents
•Cost-of-living index: C2ER / ACCRA Cost of Living Index

Data updated monthly using government datasets.