County rows
53
Open data download
County disaster-history summary data
Download one row for every county profile in the HazardNow Disaster History Atlas. FEMA administrative declarations and NOAA observed-event records remain in separate, clearly labeled columns.
States represented
50
Data updated
What the file includes
- County FIPS, county and state names, and the canonical HazardNow profile URL.
- Unique FEMA declaration counts and the matching source coverage window.
- Unique NOAA county-event counts, coverage window, and twelve monthly record counts.
- Same-source state county medians and statewide sample sizes for context.
How to interpret the sources
Administrative records
FEMA declarations
These columns count federal disaster declarations that include an exact county designation. A declaration is a government action, not a complete inventory of physical events.
Open the official FEMA datasetObserved-event records
NOAA Storm Events
These columns count distinct Storm Events records coded to a county. Forecast-zone and marine-zone records are excluded from the county totals.
Open the official NOAA datasetHistorical record context, not a forecast
Record counts do not measure event severity, losses, personal exposure, current danger, or future probability. FEMA and NOAA totals have different meanings and must not be added into a combined score. Coverage dates are included in every row so comparisons can remain source-specific and time-matched.