Data Fields Included in the National Flood Data API

The National Flood Data API returns the fields below. The first set are those fields provided by FEMA. The second set are provided by other agencies, such as the US Census Bureau or the US Geological Survey.

The API returns the following essential FEMA flood map fields:

1. Special Flood Hazard Area (True/False)
2. Flood Zone
3. Flood Zone Subtype
4. Flood Insurance Rate Map (DFirm)
5. Effective Date
6. Panel Number
7. Community Number
8. Community Name
9. Community Participation
10. Date of First Community Flood Hazard Map
11. County FIPS Code
12. Census Block
13. Core-Based Statistical Area
14. Metropolitan Division
15. Complete LOMA data for LOMAs within three miles

The API additionally provides:

1. Property Elevation in Feet
2. Base Flood Elevation where available
3. Distance to Coastline when less than 20 miles
4. Distance to Nearest Body of Water
5. Storm Surge Values along the Eastern and Gulf Coasts
6. Squarefoot
7. Year Built
8. Property Use Description (e.g. residential)
9. Construction Description
10. Number of Stories
11. Fire Resistance
12. Parking Garage Area
13. Parking Garage Type