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Buying a home in Waterloo, Illinois

The typical owner-occupied home in Waterloo is worth about $249,500, 5% below the Illinois median of $263,300 and 25% below the national median of $332,700. Owners pay a median $4,198 a year in property taxes, about 1.68% of their home's value, lower than the Illinois rate of 2.01%. The median household earns $98,711 a year, so the median home costs 2.5 times the median income (3.2 times for Illinois). 78% of occupied homes here are lived in by their owners, and 60% of those owners still have a mortgage.

Waterloo at a glance

Waterloo Illinois U.S.
Median home value $249,500 $263,300 $332,700
Median property tax paid per year $4,198 $5,298 $3,119
Property tax as a share of value 1.68% 2.01% 0.94%
Median household income $98,711 $83,390 $80,734
Homes lived in by their owners 78% 67% 65%
Owner homes with a mortgage 60% 61% 61%
Median monthly costs, owners with a mortgage $1,835 $1,987 $1,963
Those costs as a share of the owners' income 18.5% 20.6% 21.0%
Median rent $886 $1,274 $1,413
Rent as a share of renters' income 28.9% 29.1% 30.6%
Median year homes were built 1991 1971 1980
Vacant homes 6.8% 7.7% 10.1%
Population 11,129 12,694,798 334,922,499

What a typical home costs per month in Waterloo

At this week's average 30-year rate of 7.11%, buying the median Waterloo home of $249,500 with 20% down costs about $1,796 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $2,212, because the loan is bigger and FHA adds mortgage insurance.

Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $76,971 for the 20%-down payment. That payment is 22% of the median Waterloo household income of $98,711; at that income and 20% down, the 28% guideline points to a home of about $320,000.

The median rent here is $886 a month, so owning the median home costs about $910 a month more than renting, before you count the equity you build and any tax benefits.

20% down, 30-year conventional loan
Down payment$49,900
Loan amount$199,600
Principal and interest$1,343
Property taxes (1.68% a year)$349
Homeowners insurance (our estimate, 0.5% a year)$104
PMI$0
Total per month$1,796

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3.5% down, 30-year FHA loan
Down payment$8,732
Loan amount$244,981
Principal and interest$1,648
Property taxes (1.68% a year)$349
Homeowners insurance (our estimate, 0.5% a year)$104
FHA mortgage insurance$110
Total per month$2,212

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Questions about home buying in Waterloo

What is the median home value in Waterloo?

About $249,500 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.

How much are property taxes in Waterloo?

Homeowners pay a median $4,198 a year, which is about 1.68% of the median home value. Your bill depends on your home's assessed value and local rates.

What income do you need to buy a home in Waterloo?

For the median home with 20% down at 7.11%, the payment is about $1,796 a month. Keeping that under 28% of gross income takes about $76,971 a year.

More about Waterloo

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