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Jackson County, MS Environmental Rules: Flood Zones (2026)

Heavy Restrictions

Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

FEMA flood zone rules in Jackson County, MS, also called floodplain regulations or special flood hazard area (SFHA) rules, determine flood insurance requirements and elevation standards for new construction.

Key Facts

SFHA Coverage: Most southern county
Freeboard: BFE + 1 to 3 feet
V-Zone: Pile foundations required
State Law: MS §51-35 floodplain
Wind Rating: 150 mph coastal

FEMA Flood Zone Lookup

FEMA assigns every parcel in the U.S. a flood-hazard designation on its Flood Insurance Rate Maps (FIRMs). Zones starting with A or V are high-risk Special Flood Hazard Areas where federally backed mortgages require NFIP flood insurance. Zone X indicates moderate-to-minimal risk, where insurance is optional but often recommended. Your specific zone determines insurance cost, build elevation, and permit requirements in Jackson County, MS.

Zone	What it means	NFIP required?
A	High-risk flood area; 1% annual chance flood, no detailed analysis.	Yes
AE	High-risk; same as A but with established Base Flood Elevations.	Yes
AH	High-risk shallow flooding (1-3 ft), usually ponding.	Yes
AO	High-risk shallow flooding (1-3 ft) with sheet flow on sloping terrain.	Yes
V	High-risk coastal zone subject to wave action (no BFE).	Yes
VE	High-risk coastal zone with wave action and established BFEs.	Yes
X (shaded)	Moderate risk; between the 1% and 0.2% annual chance flood.	Recommended
X	Minimal risk; outside the 0.2% annual chance floodplain.	No

Look up Jackson County, MS on the FEMA flood map

FEMA maps update periodically; verify zone before buying flood insurance or building.

Summary

Jackson County enforces FEMA floodplain standards with post-Katrina elevation requirements. Most of southern Jackson County lies in Special Flood Hazard Areas (V, AE, A zones). Base Flood Elevation plus 1-3 feet freeboard required. Flood insurance mandatory for federally-backed mortgages.

These county ordinances apply to unincorporated areas of Jackson County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

About Flood Map Service Center The FEMA Flood Map Service Center (MSC) is the official public source for flood hazard information produced in support of the National Flood Insurance Program (NFIP). Use the MSC to find your official flood map, access a range of other flood hazard products, and take advantage of tools for better understanding flood risk. FEMA flood maps are continually updated through a variety of processes. Effective information that you download or print from this site may change or become superseded by new maps over time. For additional information, please see the Flood Hazard Mapping Updates Overview Fact Sheet

Source: FEMA Map ServiceView official code

Full Breakdown

Jackson County participates in the National Flood Insurance Program (NFIP) and enforces strict floodplain management following Hurricane Katrina's devastating 2005 storm surge that flooded much of Pascagoula, Moss Point, and Gautier. Most of southern Jackson County lies in FEMA-designated Special Flood Hazard Areas (SFHAs), with V-zones along direct Gulf frontage, AE-zones throughout coastal neighborhoods, and A-zones inland. New construction and substantial improvements (50% or more of market value) must be elevated at minimum to Base Flood Elevation plus 1 foot freeboard in Jackson County, with some cities requiring 2-3 feet. V-zone construction requires pile or column foundations with breakaway walls below BFE. Fill in floodways is prohibited under MS §51-35-1 et seq. Flood insurance is required for federally-backed mortgages in SFHAs. Jackson County Emergency Management maintains updated FIRMs. Post-Katrina building code (2006 IRC/IBC with Mississippi amendments) includes 150 mph wind requirements in southern coastal counties.

Violations & Fines

Construction below BFE: retroactive compliance, fines $500 to $5,000, loss of flood insurance eligibility. Floodway encroachment: removal order under MS §51-35. Substantial improvement without elevation: CDBG/FEMA disaster assistance ineligibility. NFIP community sanctions possible.

Frequently Asked Questions

Do I need flood insurance in Jackson County?

Almost certainly yes if you have a federally-backed mortgage in southern Jackson County. Most of the county falls within FEMA SFHAs due to Gulf proximity and post-Katrina mapping. Check your flood zone at msc.fema.gov.

How high do I need to elevate new construction?

At minimum Base Flood Elevation plus 1 foot in unincorporated Jackson County, with some cities requiring 2-3 feet freeboard. V-zone properties need pile or column foundations. Confirm specifics with your building department.

Sources & Official References

Other rules in Jackson County

Fence Regulations: Height LimitsSome Restrictions Parking Rules: RV & Boat ParkingSome Restrictions Erosion ControlSome Restrictions Stormwater ManagementSome Restrictions Flood Elevation RequirementsSignificant Restrictions Parking Rules: Driveway RulesSome Restrictions Parking Rules: Loading ZonesSome Restrictions Parking Rules: Abandoned VehiclesSome Restrictions Animal Ordinances: Pet LimitsSignificant Restrictions

All Jackson County rules

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