FloodZoneMap.org

Grainger County, Tennessee Flood Zones

Check an Address in Grainger County

Enter any address in Grainger County, Tennessee to see its FEMA flood zone

Grainger County Disaster History

Disaster Declarations
20
Flood/Coastal Disasters
4
Hurricane Disasters
1
Latest Disaster
SEVERE WINTER STORM (2026-01-22)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Grainger County

DeclarationTypeDate
SEVERE WINTER STORMWinter Storm2026-01-22
SEVERE WINTER STORMWinter Storm2026-01-22
SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODINGSevere Storm2025-04-02
TROPICAL STORM HELENETropical Storm2024-09-26
SEVERE STORMS, TORNADOES, AND FLOODINGTornado2021-03-25
COVID-19 Biological2020-01-20
COVID-19 PANDEMICBiological2020-01-20
SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDESFlood2019-02-19
SEVERE WINTER STORM AND FLOODINGSevere Ice Storm2015-02-15
SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, ANDSevere Storm2011-06-18

Flood Zone Types in Grainger County

FEMA assigns flood zone designations to areas in Grainger County, Tennessee:

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 Grainger County

Properties in Grainger County, Tennessee 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.