FEMA Disaster Declarations by County: Counts, Map Data, and Method

01 / Geographic view

County-area declaration records across the U.S.

Representative county centroids for designated areas in the checked FEMA selection. The points show record counts; they are not county boundaries, damage estimates or a risk map.

Centroid plot for designated county areas; points are not county boundaries, a damage estimate or a risk map.

01 / Exact values

Top designated county areas by recorded declarations

Top 50 county-area rows in the checked DR selection. The download contains every deduplicated county-area pair.

05 / Context

Understanding FEMA Disaster Declarations and Designated County Areas

A FEMA disaster declaration is an official acknowledgment by the Federal Emergency Management Agency that a disaster event, such as a storm, flood, or wildfire, has occurred and that affected areas may be eligible for federal assistance. Each declaration covers specific geographic areas which FEMA calls designated county areas. These designated areas usually correspond to counties but can include other defined jurisdictions. It is important to distinguish between the declared disaster event, the designated county areas covered by the declaration, and actual property damage: a declaration indicates eligibility for assistance rather than quantifying damage or losses.

The source data records each pair of a disaster declaration and a designated county area as one entry. Since one disaster event often affects multiple counties or areas, this approach counts each affected county separately, ensuring that data reflects the scope of disaster impacts at the local level.

• Disaster declaration: Official FEMA notice that a disaster event qualifies for federal aid.
• Designated county area: Geographic area covered by a disaster declaration, often a standard county but may include other defined areas.
• Property damage: Actual destruction or loss to property, which this dataset does not quantify or measure.

06 / Context

Data Sources and Methodology

This page’s dataset is drawn from multiple official FEMA sources. The OpenFEMA Disaster Declarations Summaries v2 provides primary declaration records with details about each disaster and its designated counties. The FEMA designated counties GIS service offers geographic context for the named areas. Lastly, the human-readable FEMA disaster declarations webpage facilitates event-level review of declarations.

The compiled data covers declarations made from 2021 to 2025, encompassing 277 unique disaster events affecting 2,137 designated county areas. The total number of unique disaster-to-county-area records, which count each county separately for every disaster it was included in, is 4,560. The dataset excludes tribal disaster requests and focuses strictly on state and county levels across all fifty states.

Each disaster-to-county-area pair is counted once; this deduplication ensures that the data reflects the number of affected areas per disaster, not the total number of disasters or properties affected across the country. No assumptions or estimates are made regarding damage costs, insurance claims, or property counts, nor are any FIPS codes or boundary maps invented for interpretation.

• Period: 2021 through 2025.
• Source rows: 4,702 records from official FEMA data.
• Declarations: 277 unique disaster events.
• Designated county areas: 2,137 unique areas noted.
• Unique disaster-to-county-area pairs: 4,560.

07 / Context

Top Designated County Areas by Recorded Declarations (2021–2025)

The table below ranks designated county areas by the number of declaration-to-county-area pairs recorded during 2021–2025. This ranking is based on official data and reflects the count of disaster-to-county-area pairs. It is important to note that this is not a measure of safety or risk, nor does it reflect property damage magnitude or insurance losses. It serves to identify which counties were covered by the most disaster declarations according to FEMA records.

Designated county areas in Kentucky dominate the top rankings; Clay and Owsley each appear in 11 declaration-to-county-area pairs, more than any other area in this selection.

• Clay (Kentucky) — 11 declarations
• Owsley (Kentucky) — 11 declarations
• Lee (Kentucky) — 10 declarations
• Breathitt (Kentucky) — 9 declarations
• Johnson (Kentucky) — 9 declarations
• Powell (Kentucky) — 9 declarations

08 / Context

Annual County-Area Records (2021–2025)

The number of deduplicated declaration-to-county-area records has varied annually. The recorded values show an increase in 2024 compared to previous years, followed by a decline in 2025. These counts represent deduplicated declaration-to-county-area records within the selected scope and do not measure damages or losses. Here are the annual totals:

• 2021: 1,109 county-area records
• 2022: 641 county-area records
• 2023: 831 county-area records
• 2024: 1,295 county-area records
• 2025: 684 county-area records

Conclusion

Use the table with its definition.

FEMA disaster declarations by county provide valuable data on the geographic distribution of federal disaster assistance eligibility. While this dataset details which counties or designated county areas were included in disaster declarations from 2021 to 2025, it does not assess the extent of property damage or financial impact. Users should consult the official FEMA declaration records for the most current or event-specific information. Understanding the distinctions among disaster declarations, designated county areas, and actual property damage helps contextualize this data for public awareness, research, and planning purposes.

Sources and limits

Read the source notes before reusing the numbers.

This page preserves the dataset scope, period and limitations. The figures are not a forecast, an insurance estimate, a measure of individual risk, or a ranking beyond the selection described above.

OpenFEMA Disaster Declarations Summaries v2

Primary declaration, designated-area, state and place-code fields.

Open official source ↗

FEMA designated counties GIS service

Official map-service context for designated county areas.

Open official source ↗

FEMA disaster declarations

Human-readable declaration records for event-level checking.

Open official source ↗

OpenAI assisted with explanatory prose. Tables and charts are rendered from checked local source snapshots.