Cost of Living in DeKalb County, Illinois
At a Glance
Rent burden measured as median gross rent as a percentage of renter household income (Census ACS B25071)
How DeKalb County Compares
Median monthly rent comparison
Detailed Housing Stats
National Ranking
Affordability Rank
DeKalb County ranks #2,754 of 3,144 counties for affordability (bottom 12%)
Data Story
About Cost of Living in DeKalb County, Illinois
DeKalb's housing costs surge well above average
DeKalb County renters face an 18.1% rent-to-income ratio—among the nation's tightest housing squeezes—with $1,041 monthly rent consuming a quarter of the $69,022 median income. This college-town economy drives costs far above national averages despite modest local incomes.
DeKalb is Illinois's affordability outlier
DeKalb's 18.1% rent-to-income ratio significantly exceeds Illinois's 14.7% state average, and the $1,041 median rent towers $204 above the state mean. The presence of Northern Illinois University creates student housing demand that inflates costs across the entire county market.
Dramatically pricier than surrounding rural counties
DeKalb's $1,041 rent nearly doubles the $761-757 range found in Crawford, Cumberland, and Edgar counties—a striking gap reflecting its college-town character. Even compared to farmland peers, DeKalb stands as the region's cost outlier by a significant margin.
Renters and buyers both face affordability strain
DeKalb renters spend $1,041 monthly on housing (18.1% of income), while homeowners pay $1,500 on properties averaging $231,900—the highest in this county group. The gap between rent and ownership costs reflects strong home values driven by university proximity and regional desirability.
DeKalb works best for higher earners
DeKalb's affordability challenge suits those with incomes above the county median or those prioritizing university proximity and urban amenities over cost minimization. Compare rent here to the $756-761 range in nearby Crawford or Cumberland to quantify what proximity to NIU costs monthly.
Cost of Living Advisory: DeKalb County
Affordability Verdict
DeKalb County offers affordable rental housing at a median of $1,041/month — about 18.1% of the typical household income here.
Rent vs. Own
The median rent in DeKalb County is $1,041/month, while owner costs run $1,500/month. Renting saves approximately $459/month.
Income Needed
To afford the median rent without exceeding 30% of gross income, a household needs to earn approximately $41,640/year. For owner costs at the 28% rule, the required income is roughly $64,286/year. With a median household income of $69,022, most households can comfortably afford rent here. Notably, 33.0% of renter households in DeKalb County are cost-burdened, spending more than 30% of income on housing.
Regional Context
Compared to Winnebago County where rent averages $986/month, DeKalb County is approximately 6% more expensive.
Affordability Calculator
See how your income compares to housing costs in DeKalb County
Rent Burden
18.1%
of gross income
Max Housing (28% Rule)
$1,611
per month
Owner Cost Burden
26.1%
of gross income
The median home in DeKalb County may be a stretch
Median home value is $231,900. Estimated monthly cost: $1,851 vs. your max of $1,611.
Rent Affordability Guide
Income Needed Calculator
See how much you need to earn to comfortably afford housing
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Based on the 30% rule for rent and 28% rule for housing costs (mortgage + owner costs). Mortgage estimate assumes 20% down, 7.2% interest, 30-year fixed.
Frequently Asked Questions
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See Today's RatesData: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2019-2023) — Informational only. Not financial or legal advice.
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