Office hours are 8:00am to 5:00pm CST Monday through Friday
Cedar Rapids
![Picture of the Cedar Rapids river and the federal courthouse](https://webarchive.library.unt.edu/web/20130214085817im_/http://www.harkin.senate.gov/images/office/CR.jpg)
111 Seventh Avenue SE; Box 16
Suite 480
Cedar Rapids, IA 52401-2101
(319) 365-4504 Phone
(319) 365-4683 Fax
Davenport
![Picture of the Davenport skyline](https://webarchive.library.unt.edu/web/20130214085817im_/http://www.harkin.senate.gov/images/office/Dav.jpg)
1606 Brady Street
Suite 323
Davenport, IA 52803
(563) 322-1338 Phone
(563) 322-0417 Fax
Des Moines
![Picture of the Des Moines skyline](https://webarchive.library.unt.edu/web/20130214085817im_/http://www.harkin.senate.gov/images/office/DM.jpg)
210 Walnut Street
Room 733, Federal Building
Des Moines, IA 50309
(515) 284-4574 Phone
(515) 284-4937 Fax
Dubuque
![Picture of the Dubuque skyline](https://webarchive.library.unt.edu/web/20130214085817im_/http://www.harkin.senate.gov/images/office/Dub.jpg)
350 W. 6th Street
315 Federal Building
Dubuque, IA 52001
(563) 582-2130 Phone
(563) 582-2342 Fax
Sioux City
![Picture of a downtown Sioux City street](https://webarchive.library.unt.edu/web/20130214085817im_/http://www.harkin.senate.gov/images/office/SC.jpg)
320 6th Street
110 Federal Building
Sioux City, IA 51101
(712) 252-1550 Phone
(712) 252-7104 Fax
Washington DC
![Picture of the United States Capitol](https://webarchive.library.unt.edu/web/20130214085817im_/http://www.harkin.senate.gov/images/office/DC.jpg)
731 Hart Senate Office Building
Washington, DC 20510
(202) 224-3254 Phone
(202) 224-9369 Fax