Understanding FEMA's Flood Zone X: Shaded vs. Unshaded
Understanding FEMA's Flood Zone X: Shaded vs. Unshaded
US · Published Aug 30, 2026
Flood Zone X, as designated by FEMA, represents areas outside the high-risk Special Flood Hazard Area (SFHA) and is divided into two categories: shaded and unshaded.
Zone X shaded, previously known as Zone B, indicates a moderate flood risk with a 0.2% annual chance of flooding (500-year floodplain).

Impact & Risks

Properties in Zone X are at a lower risk of flooding compared to high-risk zones, but the risk is not zero. Zone X shaded areas, with a 0.2% annual chance of flooding, are at moderate risk, while Zone X unshaded areas face minimal risk. Flooding can still occur due to localized heavy rainfall, storm surges, or drainage issues. Homeowners in Zone X are not federally required to purchase flood insurance, but they should consider it, especially if their property is near high-risk zones or has a history of flooding. The average NFIP premium for Zone X properties is $718 per year, significantly lower than the $1,154 average for high-risk Zone AE properties.

Related News