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Refinancing a mortgage in Dekalb, Illinois

The typical owner-occupied home in Dekalb is worth about $204,700, 22% below the Illinois median of $263,300 and 38% below the national median of $332,700. Owners pay a median $5,607 a year in property taxes, about 2.74% of their home's value, higher than the Illinois rate of 2.01%. The median household earns $46,481 a year, so the median home costs 4.4 times the median income (3.2 times for Illinois). 42% of occupied homes here are lived in by their owners, and 64% of those owners still have a mortgage.

Dekalb at a glance

Dekalb Illinois U.S.
Median home value $204,700 $263,300 $332,700
Median property tax paid per year $5,607 $5,298 $3,119
Property tax as a share of value 2.74% 2.01% 0.94%
Median household income $46,481 $83,390 $80,734
Homes lived in by their owners 42% 67% 65%
Owner homes with a mortgage 64% 61% 61%
Median monthly costs, owners with a mortgage $1,692 $1,987 $1,963
Those costs as a share of the owners' income 22.1% 20.6% 21.0%
Median rent $1,029 $1,274 $1,413
Rent as a share of renters' income 40.7% 29.1% 30.6%
Median year homes were built 1976 1971 1980
Vacant homes 5.8% 7.7% 10.1%
Population 40,443 12,694,798 334,922,499

What refinancing could save in Dekalb

Dekalb owners with a mortgage pay a median $1,692 a month for their mortgage, taxes, insurance and utilities, about 22.1% of their household income.

Say you owe $123,000, about 60% of the median home value here, on a 30-year loan at 8.11%. Refinancing into a new 30-year loan at this week's average of 7.11% would cut principal and interest from $912 to $827, saving about $85 a month.

Closing costs often run 2% to 5% of the loan. At 3%, about $3,700, the savings would cover the costs in about 44 months, so refinancing pays off if you keep the home longer than that.

A 15-year loan at 6.45% would raise the payment to $1,068, but you'd pay $105,620 less interest than on the new 30-year loan.

The average 30-year rate is 0.87 percentage points higher than a year ago, when it was 6.24%.

Refinancing a $123,000 balance
Current loan at 8.11%, 30 years$912
New 30-year loan at 7.11%$827
New 15-year loan at 6.45%$1,068
Monthly savings with the new 30-year loan$85

Principal and interest only; taxes and insurance stay the same.

Change the numbers in the calculator

Questions about mortgage refinance in Dekalb

What is the median home value in Dekalb?

About $204,700 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.

How much are property taxes in Dekalb?

Homeowners pay a median $5,607 a year, which is about 2.74% of the median home value. Your bill depends on your home's assessed value and local rates.

When does refinancing make sense?

When the monthly savings repay your closing costs before you expect to sell or refinance again. This week's average rates are 7.11% for 30 years and 6.45% for 15 years.

More about Dekalb

Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data