FloodZoneMap.org

Dewey County, Oklahoma Flood Zones

Check an Address in Dewey County

Enter any address in Dewey County, Oklahoma to see its FEMA flood zone

Dewey County Disaster History

Disaster Declarations
35
Flood/Coastal Disasters
1
Hurricane Disasters
1
Latest Disaster
JUMPING JUNIPER FIRE (2026-03-22)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Dewey County

DeclarationTypeDate
JUMPING JUNIPER FIREFire2026-03-22
840 ROAD FIREFire2025-03-14
SEVERE WINTER STORMSevere Ice Storm2021-02-08
SEVERE WINTER STORMSSevere Ice Storm2021-02-08
SEVERE WINTER STORMSevere Ice Storm2020-10-26
COVID-19 PANDEMICBiological2020-01-20
COVID-19 Biological2020-01-20
SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODINGSevere Storm2019-05-07
WILDFIRESFire2018-04-11
RHEA FIRE COMPLEX Fire2018-04-11

Flood Zone Types in Dewey County

FEMA assigns flood zone designations to areas in Dewey County, Oklahoma:

AE High Risk — 1% annual chance of flooding. Insurance required.

VE Very High Risk — Coastal flooding with wave action.

X (Shaded) Moderate Risk — 500-year floodplain.

X Low Risk — Outside major floodplains.

View all flood zone types →

Flood Insurance in Dewey County

Properties in Dewey County, Oklahoma that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.

Even outside high-risk zones, flood insurance is recommended. Over 20% of NFIP claims come from low and moderate-risk areas.

Visit FloodSmart.gov to find an agent and get a quote.