Welcome to Adams County
Adams County was established by the state legislature in 1851 and named in honor of the second President of the United States, John Adams, or his son, the sixth President, John Quincy Adams (sources differ). The county was finally organized and separated from Pottawattamie County on March 12, 1853. Its original size was later reduced by the creation of Montgomery and Union counties.
The first county seat was Quincy. In 1872, it was moved to Corning.
500 9th Street
Corning, Iowa 50841
Main Entrance ADA Door SW Corner of Building
Mon-Fri: 8:30 am to 4:30 pm
Mon-Fri: 8:30 am to 4:00 pm
Mon-Thurs: 8:30 am to 4:30 pm Friday: 8:30 am to Noon
Mon-Thurs: 8:00 am to 11:00 am
Mon-Fri: 8:00 am to 4:30 pm
In-Person Absentee Voting Available Now at the Courthouse
To adhere to social distancing guidelines and to avoid longer wait times, the Treasurer’s Office is recommending that property tax payments be mailed, paid online or deposited in the courthouse drop box on the west side. Click here to pay online.
Crossroad Behavioral Health
24/7 Mental Health Crisis Line