Mount Prospect Property Tax Calculator
In Mount Prospect, Illinois, the median property tax bill is $8,216 a year on a home worth around $377,000 — an effective rate of 2.18% of value. That is the 149th lowest rate of the 335 Illinois cities with Census data (state average 1.88%). On a $350,000 home that works out to about $7,630/year ($636/month in escrow). Enter your home value below.
$3,850 / year
$320.83/month in escrow · effective rate 1.10% of value
Effective rates are state averages (Tax Foundation / Census ACS). Your local rate, assessment ratio and exemptions vary by county — adjust the rate for an exact bill. How we calculate →
Mount Prospect property tax rate vs the rest of Illinois
Mount Prospect has an effective property tax rate of 2.18% — its median real-estate tax bill ($8,216) as a share of its median home value ($377,000). That is above Illinois's 1.88% state average, and ranks the 149th lowest of the 335 Illinois cities we track.
Your bill is set by overlapping local taxing bodies — the city, the county, and the school district — so the same home value in a neighbouring town can owe a very different amount. The calculator above starts from Mount Prospect's 2.18% effective rate; adjust it to your exact parcel or add a homestead exemption for a closer estimate.
Property tax by home value in Mount Prospect
Estimated annual Mount Prospect property tax at its 2.18% effective rate:
$250,000 home → $5,450/yr · $350,000 home → $7,630/yr · $500,000 home → $10,900/yr.
Divide by 12 for the monthly escrow your mortgage servicer collects — about $636/month on a $350,000 home. These figures use the city effective rate; your exact local rate and any exemptions change the final bill.
How affordable is property tax in Mount Prospect?
The typical Mount Prospect homeowner pays about $8,216 in property tax against a median household income of $103,911 — roughly 7.9% of income a year. That ratio is a quick way to weigh the real burden of property tax, since a modest rate on an expensive home can still be a large dollar bill.
How Mount Prospect property tax is calculated
Your assessor sets Mount Prospect's assessed value, and local millage rates from the city, county and school district are applied to it; the 2.18% effective rate rolls all of that into one share of market value. To estimate your tax, multiply your home value by 2.18% (or your exact local rate), then subtract any homestead or senior exemption you qualify for. The calculator above does this and shows both the annual bill and the monthly escrow amount.
Mount Prospect property tax — frequently asked questions
What is the property tax rate in Mount Prospect, Illinois?
Mount Prospect's effective property tax rate is 2.18% of home value in 2026 — its median $8,216 bill on a median $377,000 home. That is the 149th lowest of the 335 Illinois cities we track, where the state average is 1.88%.
How much is property tax on a $350,000 home in Mount Prospect?
At Mount Prospect's 2.18% effective rate, a $350,000 home owes about $7,630 a year — roughly $636 a month through escrow. Your exact parcel and any exemptions can move this up or down.
Is property tax high in Mount Prospect?
Mount Prospect ranks the 149th lowest of the 335 Illinois cities by effective rate (2.18% vs the 1.88% state average), so it is on the higher side for Illinois. The median bill is $8,216 a year.
What is the median property tax in Mount Prospect?
The median Mount Prospect homeowner pays about $8,216 a year, on a median home value of around $377,000 — an effective rate near 2.18% (US Census ACS).
How is Mount Prospect property tax calculated?
Multiply your home's value by Mount Prospect's effective rate (2.18%, or your exact local millage), then subtract any homestead exemption. The assessor sets the assessed value and local bodies set the rates; the calculator above estimates the annual and monthly amounts.
Compare nearby cities in Illinois
See all 335 Illinois cities ranked by property tax rate, or compare:
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