Decatur, IL at a glance
Median household income
$51,592$4,299 per month · U.S. Census Bureau ACS 5-YearHow much rent can you afford in Decatur, IL?
HUD’s fair market rent for each size, against what a typical household here earns. Change the income to see yours.
How much is rent in Decatur, IL? By bedroom, 2026
HUD's fiscal 2026 Fair Market Rents for Decatur, IL MSA, with the income each one takes if rent stays under 30% of it.
| Unit Size | Monthly Rent | Annual Rent | 30% Rule Min. Income | % of Median Income |
|---|---|---|---|---|
| Studio / Efficiency | $840 | $10,080 | $33,600 | 19.5% |
| 1-Bedroom Apartment | $845 | $10,140 | $33,800 | 19.7% |
| 2-Bedroom ApartmentBenchmark | $1,063 | $12,756 | $42,520 | 24.7% |
| 3-Bedroom Home | $1,378 | $16,536 | $55,120 | 32.1% |
| 4-Bedroom Home | $1,706 | $20,472 | $68,240 | 39.7% |
What a typical income covers in Decatur, IL
The 50/30/20 rule applied to the local median of $51,592 a year ($4,299 a month before tax).
What $51,592 leaves after Illinois taxes
Federal income tax, Social Security, Medicare and Illinois tax on the local median income. Change the salary to see yours.
Rent, jobs and pay in Illinois
Living in Decatur, IL: common questions
What is the median household income in Decatur, IL?
According to the latest U.S. Census Bureau ACS 5-Year survey, the median household income in Decatur, IL is $51,592 per year (approximately $4,299 per month).
What is the average rent in Decatur, IL?
The closest official figure is HUD's Fair Market Rent for 2026: $840 for a studio, $845 for one bedroom, $1,063 for two, $1,378 for three and $1,706 for four, utilities included.
It is not an average of listings. HUD sets it at the rent 40% of recent movers paid or less for a standard unit, so a new lease on a nicer place will usually cost more.
Is Decatur, IL expensive to live in?
Prices there run 11.6% below the U.S. average. BEA's regional price parity for the metro area is 88.4, where the U.S. is 100. Rent moves the number most: housing is where places differ, while goods cost about the same everywhere.
How much do you need to earn to comfortably afford rent in Decatur, IL?
To keep a $1,063 two-bedroom under 30% of gross income, a household needs about $42,520 a year, or $3,543 a month. That is 82% of what the typical household in Decatur, IL earns.
How much do you need to live comfortably in Decatur, IL?
On the local median income of $51,592 ($4,299 a month before tax), the 50/30/20 rule leaves $2,150 a month for needs like rent, utilities and groceries, $1,290 for everything else and $860 for savings or debt. A two-bedroom at $1,063 takes 49% of the needs share.
How much is the electric bill in Decatur, IL?
Homes in Illinois paid 19.9¢ per kWh on average (EIA). At 900 kWh a month, a typical use, that is about $179. Your bill depends mostly on heating and cooling.