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Dakota County, MN Environmental Rules: Flood Zones (2026)

Some Restrictions

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

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

Key Facts

Districts: Floodway, Flood Fringe, General Floodplain
Basis: Flood Insurance Rate Map per Sec. 18.03
Permit needed for: Building, fill, excavation, use change
Certification required: Registered engineer, architect or surveyor
Issuing office: Dakota County Zoning Administrator
Penalty: Misdemeanor; separate offense per day

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 Dakota County, MN.

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 Dakota County, MN on the FEMA flood map

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

Summary

Unincorporated Dakota County splits its floodplain into Floodway, Flood Fringe and General Floodplain Districts based on the Flood Insurance Rate Map, and any construction, fill, excavation or use change inside them needs a floodplain permit from the Zoning Administrator plus engineer or surveyor certification of finished elevations.

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

A. FLOODWAY DISTRICT. The Floodway District shall include those areas designated as floodway on the Flood Insurance Rate Map adopted in section 18.03. B. FLOOD FRINGE DISTRICT. The Flood Fringe District shall include those areas designated as Zone AE on the Flood Insurance Rate Map adopted in section 18.03 that are located outside of the floodway. C. GENERAL FLOODPLAIN DISTRICT. The General Floodplain District shall include those areas designated as Zone A or Zone AE without a designated floodway on the Flood Insurance Rate Map adopted in section 18.03.

View official code

Full Breakdown

03; the Flood Fringe District covers Zone AE areas outside the floodway; and the General Floodplain District covers Zone A or unmapped-floodway Zone AE areas. 01(B); the same permit requirement reaches culvert installation for roadways, field crossings and driveways. 03 adds a certification step: the applicant must submit certification from a registered professional engineer, architect or land surveyor confirming the finished fill and building elevations match what the permit and ordinance require, and any flood-proofing measures need separate certification by a registered engineer or architect. 00's enforcement ladder.

Violations & Fines

Building, filling, or changing a use in a mapped Floodway, Flood Fringe or General Floodplain District without the required permit, or varying from what a permit authorized, is a violation under Section 6.04 and 9.00. The county can issue a warning notice or notice of violation first; unresolved violations become a misdemeanor citation under Section 9.03, with each day counted separately.

Frequently Asked Questions

How does Dakota County decide which floodplain district my property is in?

It follows the Flood Insurance Rate Map adopted under Section 18.03. Mapped floodway is the Floodway District, Zone AE outside the floodway is the Flood Fringe District, and Zone A or unmapped-floodway Zone AE areas fall into the General Floodplain District, per Section 19.01.

Do I need a permit to fill or excavate land in a Dakota County floodplain?

Yes. Section 6.01(B) requires a floodplain permit from the Zoning Administrator before any placement of fill, excavation of materials, or temporary storage of equipment within the floodplain, along with construction, use changes and culvert installation.

Who has to certify my building's elevation in a floodplain permit?

A registered professional engineer, registered architect or registered land surveyor must certify to the Zoning Administrator that the finished fill and building elevations match the permit and ordinance under Section 6.03. Flood-proofing measures need their own certification from a registered engineer or architect.

Sources & Official References

[1]Dakota County Ordinance No. 50 - Shoreland and Floodplain Management Ordinance

Other rules in Dakota County

Parking Rules: Overnight ParkingSome Restrictions Noise Ordinances: Quiet HoursSome Restrictions Flood Elevation RequirementsSome Restrictions Erosion ControlSome Restrictions Boat Dock PermitsSome Restrictions Stormwater ManagementSome Restrictions Noise Ordinances: Vehicle NoiseSome Restrictions Noise Ordinances: Amplified Music & Outdoor SoundSome Restrictions Landscaping Rules: CompostingSome Restrictions Landscaping Rules: Weed OrdinancesSome Restrictions

All Dakota County rules

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