Enter any address in Cass County, North Dakota to see its FEMA flood zone
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| SEVERE STORM, TORNADOES, AND STRAIGHT-LINE WINDS | Severe Storm | 2025-06-20 |
| SEVERE WINTER STORM AND STRAIGHT-LINE WINDS | Winter Storm | 2023-12-25 |
| FLOODING | Flood | 2020-04-01 |
| COVID-19 PANDEMIC | Biological | 2020-01-20 |
| COVID-19 | Biological | 2020-01-20 |
| FLOODING | Flood | 2019-03-21 |
| FLOODING | Flood | 2013-04-22 |
| FLOODING | Flood | 2013-04-22 |
| FLOODING | Flood | 2011-04-05 |
| FLOODING | Flood | 2011-02-14 |
County-level NFIP data coming soon. Here are North Dakota statewide figures for context:
FEMA assigns flood zone designations to areas in Cass County, North Dakota:
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.
Properties in Cass County, North Dakota 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.