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FIPS 20111 · population 32,520 (2024)

Lyon County, Kansas

Lyon County has been named in 27 federal declarations. Statewide declarations for Kansas (7) are listed on the state page.

27declarations 23major disasters 4emergencies 1965first on record 2025latest

By hazard

Severe Storm17
Flood4
Biological2
Tornado2
Hurricane1
Severe Ice Storm1

By decade

31960s
31970s
21990s
92000s
72010s
32020s

Population: 32,177 in April 2020, 32,520 in July 2024 (Census Bureau estimates).

Declarations naming Lyon County

DeclaredNumberTitleHazardProgramsFederal aid
Sep 11, 2025 DR-4891-KS Severe Storms, Straight-Line Winds, Tornadoes, and Flooding Severe Storm PA $2.5 million
Mar 29, 2020 DR-4504-KS COVID-19 Pandemic Biological IHPPAHM $561.9 million
Mar 13, 2020 EM-3481-KS COVID-19 Biological PA —
Jun 20, 2019 DR-4449-KS Severe Storms, Straight-Line Winds, Tornadoes, Flooding,landslides,and Mudslides Severe Storm PAHM $70.4 million
May 28, 2019 EM-3412-KS Tornadoes and Flooding Severe Storm PA —
Jul 20, 2015 DR-4230-KS Severe Storms, Tornadoes, Straight-Line Winds, and Flooding Severe Storm PAHM $12.5 million
Oct 22, 2013 DR-4150-KS Severe Storms, Straight-Line Winds, Tornadoes, and Flooding Severe Storm PAHM $11.7 million
Jul 29, 2011 DR-4010-KS Severe Storms, Straight-Line Winds, Tornadoes, and Flooding Severe Storm PAHM $8.3 million
Aug 10, 2010 DR-1932-KS Severe Storms, Flooding, and Tornadoes Severe Storm PAHM $8.4 million
Mar 9, 2010 DR-1885-KS Severe Winter Storms and Snowstorm Severe Storm PAHM $17.4 million
Jun 25, 2009 DR-1849-KS Severe Storms, Flooding, Straight-Line Winds, and Tornadoes Severe Storm PAHM $12.6 million
Jun 24, 2009 DR-1848-KS Severe Winter Storm and Record and Near Record Snow Severe Storm PAHM $14.5 million
Feb 1, 2008 DR-1741-KS Severe Winter Storms Severe Storm PAHM $248.3 million
Dec 12, 2007 EM-3282-KS Severe Winter Storms Severe Storm PA —
May 6, 2007 DR-1699-KS Severe Storms, Tornadoes, and Flooding Severe Storm IHPIAPAHM $109.5 million
Sep 10, 2005 EM-3236-KS Hurricane Katrina Evacuation Hurricane PA $163,069
Feb 8, 2005 DR-1579-KS Severe Winter Storms, Heavy Rains, and Flooding Severe Storm PAHM $84.6 million
Aug 3, 2004 DR-1535-KS Severe Storms, Flooding, and Tornadoes Severe Storm PAHM $11.0 million
Feb 6, 2002 DR-1402-KS Severe Winter Ice Storm Severe Ice Storm IAPAHM $51.2 million
Nov 5, 1998 DR-1258-KS Ks-Flooding 10/31/98 Severe Storm IAPAHM $2.5 million
Jul 22, 1993 DR-1000-KS Severe Storms & Flooding Flood IAPA —
Jun 10, 1974 DR-442-KS Severe Storms & Flooding Flood IAPA —
Sep 28, 1973 DR-403-KS Severe Storms, Tornadoes & Flooding Severe Storm IAPA —
May 2, 1973 DR-378-KS Severe Storms & Flooding Flood PA —
Jul 15, 1969 DR-267-KS Tornadoes, Severe Storms & Flooding Tornado IAPA —
Jul 18, 1967 DR-229-KS Tornadoes, Severe Storms & Flooding Tornado IAPA —
Jun 23, 1965 DR-201-KS Flooding Flood IAPA —