Key Facts Ordinance Text Full Breakdown Violations FAQ Sources More in Rankin County

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

Significant Restrictions

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

FEMA flood zone rules in Rankin 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

Floodway: no development allowed
SFHA setback: 100 feet from floodway
Finished floor: +24 in. above base flood elev.
Zone A parcels: flood study required
Applies only in: unincorporated county

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 Rankin 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 Rankin County, MS on the FEMA flood map

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

Summary

Rankin County bans development within the designated Floodway and requires any development in the surrounding Special Flood Hazard Area to sit at least 100 feet back from it.

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

SECTION 3102 - PROHIBITIONS ON DEVELOPMENT: No development is permitted within the designated Floodway. Any development permitted within the designated Special Flood Hazard Area (SFHA) must have a setback of one hundred (100) feet of the Floodway.

View official code

Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.

Full Breakdown

Article XXXI's Flood Preservation Overlay District bans all development inside the designated Floodway outright; anything built in the surrounding Special Flood Hazard Area must be set back at least 100 feet from the Floodway (Section 3102). Approved structures in the overlay must have a finished floor elevation at least 24 inches above the base flood elevation, and applications need sign-off from the County Engineer and the Floodplain Administrator (Section 3100). Separately, Section 401.07 requires a Detailed Base Flood Elevation Study before building in a FEMA Zone A area with no established base flood elevation. These rules apply only in unincorporated Rankin County, not inside Brandon, Pearl, Flowood, Richland, Florence, Puckett, or Star.

Violations & Fines

Building in the Floodway, skipping the required elevation study, or developing without County Engineer/Floodplain Administrator sign-off is a misdemeanor under Miss. Code §17-1-27, punishable by a fine up to $1,000, up to one year in jail, or both.

Frequently Asked Questions

Can I build inside the Floodway in Rankin County?

No. Section 3102 bans all development within the designated Floodway; development is only allowed in the surrounding Special Flood Hazard Area, and only 100 feet back from the floodway.

How high must my house be built in a flood zone?

The finished floor must sit at least 24 inches above the base flood elevation, under Section 3100 of the Flood Preservation Overlay District.

Sources & Official References

[1]Rankin County Zoning Ordinance (2004, amended 2024) — Art. XXXI, §3102

Other rules in Rankin County

Parking Rules: Overnight ParkingSome Restrictions Parking Rules: Street Parking LimitsSignificant Restrictions Parking Rules: RV & Boat ParkingSome Restrictions Stormwater ManagementSome Restrictions Flood Elevation RequirementsSome Restrictions Parking Rules: Commercial & Oversized VehiclesSome Restrictions Parking Rules: Abandoned VehiclesSome Restrictions Parking Rules: Driveway RulesSome Restrictions

All Rankin County rules

Compare Rankin County to another location·View the Mississippi environmental rules overview

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.