FEMA flood zones · Michigan

Hillsdale County, Michigan Flood Zone Map

13 flood insurance claims·$184,327 paid

1% of Hillsdale County’s area is in FEMA’s high-risk flood zones.

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 Hillsdale County, Michigan. 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 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 3 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 2018, with 5 claims and $96,428 paid.

1989: 1 claims2001: 1 claims2009: 1 claims2011: 1 claims2013: 1 claims2018: 5 claims2020: 1 claims2025: 1 claims2026: 1 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.

Federal disasters

9 federal disaster declarations since 1965.

DisasterBegan
Hurricane Katrina EvacuationAug 29, 2005
Power OutageAug 14, 2003
SnowDec 11, 2000
Blizzards & SnowstormsJan 27, 1978
SnowstormsFeb 5, 1977
TornadoesApr 12, 1974
Tornadoes & Severe StormsApr 14, 1965

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

Recorded flood events

6 since 1996: 6 flash floods.

EventDateDamage
Flash FloodSep 1, 2013—
Flash FloodMay 21, 2010—
Flash FloodSep 9, 1997—
Flash FloodJun 17, 1996$150,000
Flash FloodMay 9, 1996—

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

From the storm reports

Flash Flood · Sep 1, 2013. A strong warm front surged north into Lower Michigan during the early morning hours of the 9th. Steep lapse rates and abundant lift with the front along allowed for several rounds of showers and a few thunderstorms to persist across portions of far southern Lower Michigan. Reports of four to over five inches of rain were received across portions of Hillsdale County, especially in the Litchfield area where several…

Flash Flood · May 21, 2010. A upper level impulse, abundant moisture and a south-southwesterly flow combined to allow for the development of thunderstorms. While several produced small hail and locally gusty winds, the main effect was torrential rainfall, on the order of 1 to 3 inches per hour. This resulted in flash flooding in several locations across western Defiance county.

Flash Flood · Jun 17, 1996. Flash flooding from rains measured at over three inches caused road washouts and damage to culverts, bridges, and homes. A bridge along Ridge Drive was washed away. Many houses suffered water damage near Berry Lake.

Flash Flood · May 9, 1996. Rain totals of nearly 3 inches resulted from thunderstorms moving across the county, causing flooding of streets and some basements as well as overflow of small streams.

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 Hillsdale County

If a building in Hillsdale 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.