The typical owner-occupied home in Grayslake is worth about $309,500, 18% above the Illinois median of $263,300 and 7% below the national median of $332,700. Owners pay a median $10,001 a year in property taxes, about 3.23% of their home's value, higher than the Illinois rate of 2.01%. The median household earns $113,972 a year, so the median home costs 2.7 times the median income (3.2 times for Illinois). 78% of occupied homes here are lived in by their owners, and 71% of those owners still have a mortgage.
Grayslake at a glance
| Grayslake | Illinois | U.S. | |
|---|---|---|---|
| Median home value | $309,500 | $263,300 | $332,700 |
| Median property tax paid per year | $10,001 | $5,298 | $3,119 |
| Property tax as a share of value | 3.23% | 2.01% | 0.94% |
| Median household income | $113,972 | $83,390 | $80,734 |
| Homes lived in by their owners | 78% | 67% | 65% |
| Owner homes with a mortgage | 71% | 61% | 61% |
| Median monthly costs, owners with a mortgage | $2,313 | $1,987 | $1,963 |
| Those costs as a share of the owners' income | 19.3% | 20.6% | 21.0% |
| Median rent | $1,485 | $1,274 | $1,413 |
| Rent as a share of renters' income | 30.1% | 29.1% | 30.6% |
| Median year homes were built | 1994 | 1971 | 1980 |
| Vacant homes | 3.8% | 7.7% | 10.1% |
| Population | 20,929 | 12,694,798 | 334,922,499 |
What a typical home costs per month in Grayslake
At this week's average 30-year rate of 7.11%, buying the median Grayslake home of $309,500 with 20% down costs about $2,628 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $3,143, 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 $112,614 for the 20%-down payment. That payment is 28% of the median Grayslake household income of $113,972; at that income and 20% down, the 28% guideline points to a home of about $313,000.
The median rent here is $1,485 a month, so owning the median home costs about $1,143 a month more than renting, before you count the equity you build and any tax benefits.
| Down payment | $61,900 |
|---|---|
| Loan amount | $247,600 |
| Principal and interest | $1,666 |
| Property taxes (3.23% a year) | $833 |
| Homeowners insurance (our estimate, 0.5% a year) | $129 |
| PMI | $0 |
| Total per month | $2,628 |
Change the numbers in the calculator
| Down payment | $10,832 |
|---|---|
| Loan amount | $303,894 |
| Principal and interest | $2,044 |
| Property taxes (3.23% a year) | $833 |
| Homeowners insurance (our estimate, 0.5% a year) | $129 |
| FHA mortgage insurance | $137 |
| Total per month | $3,143 |
Change the numbers in the calculator
Questions about home buying in Grayslake
What is the median home value in Grayslake?
About $309,500 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.
How much are property taxes in Grayslake?
Homeowners pay a median $10,001 a year, which is about 3.23% 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 Grayslake?
For the median home with 20% down at 7.11%, the payment is about $2,628 a month. Keeping that under 28% of gross income takes about $112,614 a year.
More about Grayslake
- Mortgage Refinance in Grayslake
- Debt Relief in Grayslake
- Home Equity Loans in Grayslake
- Guides and quotes for mortgage refinance on our sister site, MortgageRefinance.com
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