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Buying a home in McHenry County, Illinois

The typical owner-occupied home in McHenry County is worth about $308,100, 17% above the Illinois median of $263,300 and 7% below the national median of $332,700. Owners pay a median $7,274 a year in property taxes, about 2.36% of their home's value, higher than the Illinois rate of 2.01%. The median household earns $104,802 a year, so the median home costs 2.9 times the median income (3.2 times for Illinois). 83% of occupied homes here are lived in by their owners, and 68% of those owners still have a mortgage.

McHenry County at a glance

McHenry County Illinois U.S.
Median home value $308,100 $263,300 $332,700
Median property tax paid per year $7,274 $5,298 $3,119
Property tax as a share of value 2.36% 2.01% 0.94%
Median household income $104,802 $83,390 $80,734
Homes lived in by their owners 83% 67% 65%
Owner homes with a mortgage 68% 61% 61%
Median monthly costs, owners with a mortgage $2,137 $1,987 $1,963
Those costs as a share of the owners' income 21.0% 20.6% 21.0%
Median rent $1,401 $1,274 $1,413
Rent as a share of renters' income 30.2% 29.1% 30.6%
Median year homes were built 1989 1971 1980
Vacant homes 3.1% 7.7% 10.1%
Population 312,591 12,694,798 334,922,499

What a typical home costs per month in McHenry County

At this week's average 30-year rate of 7.11%, buying the median McHenry County home of $308,100 with 20% down costs about $2,392 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $2,906, 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 $102,531 for the 20%-down payment. That payment is 27% of the median McHenry County household income of $104,802; at that income and 20% down, the 28% guideline points to a home of about $315,000.

The median rent here is $1,401 a month, so owning the median home costs about $991 a month more than renting, before you count the equity you build and any tax benefits.

20% down, 30-year conventional loan
Down payment$61,620
Loan amount$246,480
Principal and interest$1,658
Property taxes (2.36% a year)$606
Homeowners insurance (our estimate, 0.5% a year)$128
PMI$0
Total per month$2,392

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3.5% down, 30-year FHA loan
Down payment$10,784
Loan amount$302,520
Principal and interest$2,035
Property taxes (2.36% a year)$606
Homeowners insurance (our estimate, 0.5% a year)$128
FHA mortgage insurance$136
Total per month$2,906

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Questions about home buying in McHenry County

What is the median home value in McHenry County?

About $308,100 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.

How much are property taxes in McHenry County?

Homeowners pay a median $7,274 a year, which is about 2.36% 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 McHenry County?

For the median home with 20% down at 7.11%, the payment is about $2,392 a month. Keeping that under 28% of gross income takes about $102,531 a year.

More about McHenry County

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