Dickinson County has seen at least sixteen federally declared disasters since 1965 for everything from flooding and severe summer storms to blizzards and ice storms. Of the sixteen known declarations, ten have occurred since 2000. The most common type of assistance under a Major Disaster Declaration is Public Assistance which is Assistance to State, Tribal, and local governments and certain private nonprofit organizations for emergency work and the repair or replacement of disaster-damaged facilities.
When there is significant and numerous damages to private properties, FEMA may open up federal Individual Assistance to persons who were affected by the disaster. This may include Individuals and Households Program, Crisis Counseling Program, Disaster Case Management, Disaster Unemployment Assistance, Disaster Legal Services, and Disaster Supplemental Nutrition Assistance Program.
You can learn more about the Disaster Declaration Process on the FEMA website.

Federally Declared Disasters for Dickinson County
23 Mar 2020
Iowa COVID-19 Pandemic (DR-4483)
Major Disaster Declaration declared on March 23, 2020
23 Mar 2020
23 Mar 2019
Iowa Severe Storms And Flooding (DR-4421)
Major Disaster Declaration declared on March 23, 2019
20 Aug 2018
Iowa Severe Storms, Tornadoes, Straight-line Winds, And Flooding (DR-4386)
Major Disaster Declaration declared on August 20, 2018
20 Aug 2018
24 Jul 2014
Iowa Severe Storms, Tornadoes, Straight-line Winds, and Flooding (DR-4184)
Major Disaster Declaration declared on July 24, 2014
06 May 2013
Iowa Severe Winter Storm (DR-4114)
Major Disaster Declaration declared on May 06, 2013
06 May 2013
24 Aug 2011
Iowa Severe Storms, Straight-Line Winds, and Flooding (DR-4016)
Major Disaster Declaration declared on August 24, 2011
29 Jul 2010
Iowa Severe Storms, Flooding, and Tornadoes (DR-1930)
Major Disaster Declaration declared on July 29, 2010
29 Jul 2010
25 Feb 2010
Iowa Severe Winter Storms and Snowstorm (DR-1877)
Major Disaster Declaration declared on February 25, 2010
30 Mar 2007
Iowa Snow (EM-3275)
Emergency Declaration declared on March 30, 2007
30 Mar 2007
10 Sep 2005
Iowa Hurricane Katrina Evacuation (EM-3239)
Emergency Declaration declared on September 10, 2005
02 Jul 1998
Iowa Severe Weather, Tornadoes and Flooding (DR-1230)
Major Disaster Declaration declared on July 02, 1998
02 Jul 1998
09 Jul 1993
Iowa Flooding, Severe Storm (DR-996) Flood of '93
Major Disaster Declaration declared on July 09, 1993
26 Dec 1991
Iowa Ice Storm (DR-928)
Major Disaster Declaration declared on December 26, 1991
26 Dec 1991
14 Aug 1969
Iowa Heavy Rains, Flooding (DR-269)
Major Disaster Declaration declared on August 14, 1969
25 Apr 1969
Iowa FLOODING (DR-259)
Major Disaster Declaration declared on April 25, 1969
25 Apr 1969
22 Apr 1965
Iowa FLOODING (DR-193)
Major Disaster Declaration declared on April 22, 1965
Note: Some of the disaster declarations listed on FEMA's website don't state which counties were included, so we have no way of knowing if Dickinson County was included or not. The county has likely been involved in more declarations that what is listed here.