Hurricane Preparedness in Harrison County, MS (2026)
1 rule for unincorporated Harrison County, Mississippi.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Harrison County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Flood Elevation
In FEMA-mapped flood zones across unincorporated Harrison County, the UDC measures a building's height allowance from two feet above the base flood elevation, not from grade, and bars any habitable space below that elevated point, while allowing parking underneath elevated structures if it won't block floodwater flow.
Harrison County Flood Zone Building Height Rule
Some RestrictionsHarrison County Unified Development Code, § 416.06 (Building Height Measurement)
When a building is located in a flood zone identified on a FEMA rate map, building height limits shall be measured from a point two (2) feet above the base flood elevation as determined by FEMA provided that no habitable space or living space is located below the measurement point elevation. Automobile parking may be located under structures elevated above flood hazards provided that such eleva...
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