Dubuque County Property Tax Calculator
In Dubuque County, the median property tax bill is $2,848 a year on a home worth around $226,100 — an effective rate of 1.26% of value. That is the 31st lowest of the 99 counties in Iowa (state average 1.33%). On a $350,000 home that works out to about $4,410/year ($368/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 →
Dubuque County property tax rate vs the rest of Iowa
Dubuque County has an effective property tax rate of 1.26% — its median real-estate tax bill ($2,848) as a share of its median home value ($226,100). That is below Iowa's 1.33% state average, and ranks the 31st lowest of the 99 counties in Iowa.
Rates are set by local taxing bodies — the county, your city or town, and the school district — so two homes of the same value in different parts of Iowa can owe very different amounts. The calculator above starts from Dubuque County's 1.26% effective rate; adjust it to your exact municipality or add a homestead exemption for a closer estimate.
Property tax by home value in Dubuque County
Estimated annual Dubuque County property tax at its 1.26% effective rate:
$250,000 home → $3,150/yr · $350,000 home → $4,410/yr · $500,000 home → $6,300/yr.
Divide by 12 for the monthly escrow amount your mortgage servicer collects — for example $368/month on a $350,000 home. These figures use the county effective rate; your local rate and any exemptions change the final bill.
How affordable is property tax in Dubuque County?
The typical Dubuque County homeowner pays about $2,848 in property tax against a median household income of $75,919 — roughly 3.8% of income a year. That ratio is a quick way to compare the real weight of property tax across counties, since a low rate on an expensive home can still be a large dollar bill.
How Dubuque County property tax is calculated
Dubuque County's assessor sets your home's assessed value, and local millage rates from the county, municipality and school district are applied to it; the 1.26% effective rate rolls all of that into one share of market value. To estimate your tax, multiply your home value by 1.26% (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.
Dubuque County property tax — frequently asked questions
What is the property tax rate in Dubuque County?
Dubuque County's effective property tax rate is 1.26% of home value in 2026 — its median $2,848 bill on a median $226,100 home. That is the 31st lowest of the 99 counties in Iowa, where the state average is 1.33%.
How much is property tax on a $350,000 home in Dubuque County?
At Dubuque County's 1.26% effective rate, a $350,000 home owes about $4,410 a year — roughly $368 a month through escrow. Your exact municipality and any exemptions can move this up or down.
Is property tax high in Dubuque County?
Dubuque County ranks the 31st lowest of the 99 counties in Iowa by effective rate (1.26% vs the 1.33% state average), so it is on the lower side for Iowa. The median bill is $2,848 a year.
What is the median property tax in Dubuque County?
The median Dubuque County homeowner pays about $2,848 a year, on a median home value of around $226,100 — an effective rate near 1.26% (US Census ACS).
How is Dubuque County property tax calculated?
Multiply your home's value by Dubuque County's effective rate (1.26%, or your exact local millage), then subtract any homestead exemption. The county assessor sets the assessed value and local bodies set the rates; the calculator above estimates the annual and monthly amounts.
Compare nearby counties in Iowa
See all 99 Iowa counties ranked by property tax rate, or compare:
Researched & verified by the Calcuris Data & Research Team. How we build and check our tools →