Decatur, IL

Very Low · 47

Illinois · Population 70,368 · Updated March 2026

$796
Median Rent / Month
$50,809
Median Income
$97,300
Median Home Value
$791
Owner Costs / Month

Affordability

How far your income goes in Decatur

18.8%
Rent-to-Income Ratio
Affordable
Rent takes less than 25% of median income — considered affordable by HUD standards.

Tax Burden in Illinois

State-level tax rates that affect your costs

4.95%
Income Tax (Top Rate)
6.25%
Sales Tax
2.07%
Property Tax Rate

Estimated Annual Costs

$9,552
Annual Rent
$2,515
State Income Tax
$2,014
Property Tax (est.)

Cost of Living Overview

Decatur is significantly cheaper than the national average, making it an attractive option for budget-conscious individuals and families. With a cost index of 47 (where 100 equals the national median), Decatur residents can expect to pay median rent of $796/month while earning a median household income of $50,809/year.

The median home value in Decatur, IL is $97,300, with typical monthly owner costs around $791 including mortgage, insurance, and taxes. The median rent-to-income ratio of 18.8% means housing is relatively affordable here — well below the 30% threshold that HUD considers cost-burdened.

Illinois has a moderate income tax rate of 4.95%. Combined with a 6.25% sales tax rate and 2.07% effective property tax rate, the overall tax environment is a factor in the total cost of living in Decatur.

Frequently Asked Questions

Common questions about living costs in Decatur

What is the cost of living in Decatur, IL?
The cost of living index in Decatur, IL is 47 (US average = 100). Median monthly rent is $796, median household income is $50,809/year, and the median home value is $97,300.
Is Decatur, IL affordable?
Yes, Decatur is more affordable than the national average with a cost index of 47. The rent-to-income ratio is 18.8%—below the 30%% threshold considered affordable by HUD.
What is the average rent in Decatur, IL?
The median gross rent in Decatur, IL is $796 per month according to the US Census Bureau ACS 2023 data. Annual rent costs approximately $9,552.
What is the median household income in Decatur?
The median household income in Decatur, IL is $50,809 per year. This compares to the national median of approximately $80,000.
What are the taxes like in Illinois?
Illinois has a top income tax rate of 4.95%, a sales tax of 6.25%, and an effective property tax rate of 2.07%.