The data on this page are County-sized elevation files from the National Elevation Dataset (NED) for the state of Iowa. The files are in GeoTIFF format, and are compatible with AERMAP version 09040 or newer. The data were obtained from the USGS National Map Seamless Server.

• Adair
• Adams
• Allamakee
• Appanoose
• Audubon
• Benton
• Black Hawk
• Boone
• Bremer
• Buchanan
• Buena Vista
• Butler
• Calhoun
• Carroll
• Cass
• Cedar
• Cerro Gordo
• Cherokee
• Chickasaw
• Clarke
• Clay
• Clayton
• Clinton
• Crawford
• Dallas
• Davis
• Decatur
• Delaware
• Des Moines
• Dickinson
• Dubuque
• Emmet
• Fayette
• Floyd
• Franklin
• Fremont
• Greene
• Grundy
• Guthrie
• Hamilton
• Hancock
• Hardin
• Harrison
• Henry
• Howard
• Humboldt
• Ida
• Iowa
• Jackson
• Jasper
• Jefferson
• Johnson
• Jones
• Keokuk
• Kossuth
• Lee
• Linn
• Louisa
• Lucas
• Lyon
• Madison
• Mahaska
• Marion
• Marshall
• Mills
• Mitchell
• Monona
• Monroe
• Montgomery
• Muscatine
• O'Brien
• Osceola
• Page
• Palo Alto
• Plymouth
• Pocahontas
• Polk
• Pottawattamie
• Poweshiek
• Ringgold
• Sac
• Scott
• Shelby
• Sioux
• Story
• Tama
• Taylor
• Union
• Van Buren
• Wapello
• Warren
• Washington
• Wayne
• Webster
• Winnebago
• Winneshiek
• Woodbury
• Worth
• Wright