Welcome to Dubuque County, Iowa

Dubuque County is located in northeast Iowa along the Mississippi River, where the states of Iowa, Illinois and Wisconsin meet.  With a population of 97,000 people, we are the 8th most populated county in Iowa.  We invite you to browse our website for information and resources on our wonderful community.  Welcome!


Public Hearing - ATV/UTV Ordinance

OFFICIAL NOTICE IS HEREBY GIVEN to all interested citizens of Dubuque County, Iowa, that on Monday, August 26, 2019 in the Board Chambers – 4th Floor of the Dubuque County Courthouse at 5:30 p.m., a public hearing will be held on a proposed ATV/UTV ordinance that will allow ATV/UTV usage on county roadways. At said hearing, interested citizens will be invited to comment on the ordinance.

Public Notice – Proposed Ordinance

ATV/UTV Advisory Committee Findings


The Dubuque County Assessor's office is headed to the west end!

On Monday, August 19th, the Dubuque County Assessor’s office is moving from the Courthouse to the new West Campus building at 1225 Seippel Road (near Bergfeld pond).  The office will be closed on moving day, but will open again for business on Tuesday morning.  Thank you for your patience as we relocate to better serve the taxpayers outside Dubuque.


Dubuque County West Campus

Construction work is underway on the new Dubuque County West Campus building site.  This $17 million project will be home to the County’s Engineering, Secondary Roads, Zoning, Health and Assessor departments.  Click here to view building renderings, project site views, floor plans and live streaming of the work as it progresses.


code red

Make sure you’re notified in the event of an emergency.

If you have information regarding a crime, call Crime Stoppers today!
(800) 747-0117