FEMA flood zones · South Dakota

Hutchinson County, South Dakota Flood Zone Map

14 flood insurance claims·$308,702 paid·10 federal flood & hurricane disasters

5% of Hutchinson County’s area is in FEMA’s high-risk flood zones, and another 4% in shaded X (mostly the 0.2% floodplain and areas behind levees).

Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.

Coastal high risk (V, VE)FloodwayHigh risk (A, AE)Moderate (X, 500-year)Minimal (X)Undetermined (D)

Shaded areas are FEMA’s mapped flood hazard zones in and around Hutchinson County, South Dakota. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.

How Hutchinson County floods

Standard riverine and general floods dominate the historical record in Hutchinson County, with 91 flood events recorded over the last 30 years compared to 9 flash flood events. Heavy multi-day rainfall events can severely impact the region, as demonstrated in June 2024 when widespread rainfall totals between 5 and 10 inches—with pockets exceeding 15 inches—caused major to record flooding along area streams and rivers, extensive overland flooding, and community damages. River levels from this historic event remained above flood stage into July 2024.

National Flood Insurance Program claims data indicates that property owners in both high-risk and moderate-to-low-risk zones have experienced flood impacts. Zone A recorded 6 claims with an average payout of $7,444 and an average water depth of 1 inch. Meanwhile, Zone X recorded 5 claims with a higher average payout of $46,128 and an average recorded water depth of 5 inches, alongside Zone X unshaded with 3 claims averaging $11,133 and a 4-inch average water depth. Residents living near rivers and streams, as well as property owners located in both designated special flood hazard areas and moderate-to-low risk zones, should pay the closest attention to local flood risks.

Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.

How deep the water got

outlet80″ door12″24″36″48″60″72″84″

In flood insurance claims here that reported a flood depth, the average was 4 inches.

Drawn to scale against an 80-inch door. Even a few inches soaks flooring, the bottom of the drywall and anything plugged in near the floor.

Average of the depths reported on claims (zero and implausible values left out); FEMA’s record doesn’t say exactly where each depth was measured. Source: OpenFEMA NFIP claims.

Flood claims, year by year

The worst year was 2001, with 4 claims and $52,453 paid.

2001: 4 claims2008: 3 claims2010: 2 claims2019: 3 claims2024: 2 claims19801990200020102020

Bar height is scaled by square root so ordinary years stay visible next to the worst one. NFIP claims by year of loss. Source: OpenFEMA.

In their words

27 NOAA storm reports from Hutchinson County describe what happened, in the words of the forecasters who covered it. Read the South Dakota flood stories →

Federal disasters

24 federal disaster declarations since 1969, 10 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Storms, Straight-line Winds, And FloodingJun 16, 2024
Severe Storm, Straight-line Winds, Tornadoes, And FloodingMay 12, 2022
Severe Storms, Tornadoes, And FloodingSep 9, 2019
Severe Winter Storm, Snowstorm, And FloodingMar 13, 2019
Severe Winter Storm And SnowstormApr 8, 2013
FloodingMar 11, 2011
FloodingMar 10, 2010
Severe Winter StormJan 20, 2010

Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.

Recorded flood events

100 since 1996: 9 flash floods and 91 river or area floods.

EventDateDamage
FloodJun 21, 2024—
FloodJun 20, 2024$758,000
FloodJul 1, 2024—
FloodApr 28, 2023—
FloodApr 18, 2023—
FloodMay 1, 2023—
FloodJun 1, 2023—
FloodMay 30, 2022—

— = no damage estimate in the record. Source: NOAA Storm Events Database.

From the storm reports

Flood · Jun 21, 2024. A multi-day significant heavy rainfall event from June 20-22 resulted in widespread rain totals between 5 and 10 inches with pockets in excess of 15 inches across portions of southeast South Dakota, northwest Iowa, and southwest Minnesota. As rainfall reached area streams and rivers, major to record flooding was observed, devastating several towns and communities. Extensive overland flooding also resulted in signi…

Flood · Jun 20, 2024. A multi-day significant heavy rainfall event from June 20-22 resulted in widespread rain totals between 5 and 10 inches with pockets in excess of 15 inches across portions of southeast South Dakota, northwest Iowa, and southwest Minnesota. As rainfall reached area streams and rivers, major to record flooding was observed, devastating several towns and communities. Extensive overland flooding also resulted in signi…

Flood · Jul 1, 2024. River levels from the historic June flooding remained above flood stage for some locations into July, although continued a declining trend.

Flood · Apr 28, 2023. Rapid snowmelt from a few day period of well above normal temperatures focused on the 11-13th of April resulted in moderate to locally major flooding through much of the James River Basin. Some areas north of I-90 lost between 2 to 5 inches of snow water equivalent (SWE) from the first to second week of April, but antecedent drought conditions resulted in only a percentage of this water actually making it into the…

National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.

The zones you’ll see on the map

Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.

Cross-section of a river floodplainDiagram: a river valley. The floodway is the channel and the land beside it; the 1%-annual-chance flood surface (the base flood elevation) covers the valley floor as zone A or AE; a narrow band higher up is shaded X, the 0.2% floodplain; higher ground is X.0.2% CHANCE A YEAR (500-YEAR)BASE FLOOD ELEVATION · 1% A YEARXAEFloodwayAEX
  1. A / AE Inside the 1%-a-year floodplain: about a 26% chance of flooding over a 30-year mortgage. AE has a mapped base flood elevation; plain A does not.
  2. Floodway The channel and the land beside it that has to be kept clear enough to carry the flood. Building here is tightly limited.
  3. X shaded The 0.2% (500-year) floodplain, plus some levee-protected and very shallow flood areas.
  4. X Outside both lines. No federal requirement to insure, which is not the same as no risk.

Every flood zone code explained →

Flood insurance in Hutchinson County

If a building in Hutchinson County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.

Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.