FEMA flood zones · Michigan

Lapeer County, Michigan Flood Zone Map

27 flood insurance claims·$173,581 paid·3 federal flood & hurricane disasters

4% of Lapeer 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 Lapeer 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 Lapeer County floods

River and flash flooding from heavy rainfall events dominate the flood profile in Lapeer County, with the NOAA Storm Events Database recording 8 floods and 8 flash floods over the last 30 years. Heavy precipitation systems have historically caused significant local impacts. For example, a stalled frontal boundary in April 2013 dropped 3 to 6 inches of rain, resulting in road closures and flooded basements across multiple counties, including Lapeer. Similarly, heavy rainfall of 3 to 5 inches over a May 2011 weekend led to flooding, marked notably by Mill Creek overflowing its banks.

National Flood Insurance Program records show claims across multiple zones, indicating that flood risk extends beyond designated high-risk areas. Zone A accounts for 14 claims with an average recorded water depth of 8 inches and an average payout of $11,095. Meanwhile, Zone X recorded 6 claims with an average water depth of 1 inch and an average payout of $22,815, and Zone X_UNSHADED recorded 4 claims with an average water depth of 1 inch and an average payout of $493. Zone UNKNOWN recorded 2 claims with an average water depth of 1 inch and an average payout of $2,683, and Zone X_SHADED recorded 1 claim with an average water depth of 0 inches and a $0 payout.

Properties located near rivers, streams, and low-lying areas—particularly those in Zone A where deeper average water depths have been documented—should pay the closest attention to flood risks, alongside homeowners in moderate-to-low risk zones who have also experienced historical claims.

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 2009, with 8 claims and $116,315 paid.

1979: 1 claims1981: 2 claims1982: 2 claims1996: 3 claims1997: 2 claims1998: 1 claims2001: 2 claims2003: 3 claims2004: 1 claims2006: 1 claims2009: 8 claims2013: 1 claims1980199020002010

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

6 NOAA storm reports from Lapeer County describe what happened, in the words of the forecasters who covered it. Read the Michigan flood stories →

Federal disasters

11 federal disaster declarations since 1975, 3 of them floods, coastal storms or hurricanes.

DisasterBegan
Hurricane Katrina EvacuationAug 29, 2005
Power OutageAug 14, 2003
SnowDec 11, 2000
Severe Storms And FloodingJun 21, 1996
Severe Storms & FloodingSep 10, 1986
Severe Storms And FloodingSep 5, 1985
Blizzards & SnowstormsJan 27, 1978
Severe Storms, Tornadoes, Icing & FloodingMar 19, 1976

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

Recorded flood events

16 since 1996: 8 flash floods and 8 river or area floods.

EventDateDamage
FloodJan 11, 2020—
Flash FloodJul 13, 2017—
FloodApr 10, 2013$100,000
FloodMay 15, 2011—
FloodJun 17, 2009$100,000
FloodAug 9, 2009$3.0M
Flash FloodJul 16, 2008$20,000
FloodSep 14, 2008$125,000

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

From the storm reports

Flood · Jan 11, 2020. A winter storm tracking through southeast Michigan brought heavy rain and freezing rain, with about a quarter of an inch ice from US-10 south to about M-57. Many accidents and spin outs occurred across the Tri-Cities region and Flint vicinity due to the icy roads. In addition, strong northeast winds lead to high water levels and large waves causing significant lakeshore flooding and erosion along Bay, Tuscola, and…

Flash Flood · Jul 13, 2017. Localized heavy rain up to 3 inches produced flash flooding in Lapeer and Gensess counties.

Flood · Apr 10, 2013. A frontal boundary stalled over Michigan dropping 3 to 6 inches of rain. This resulted in the flooding of some rivers, streams and low-lying areas. Dozens of roads were closed across the following counties: Midland, Bay, Saginaw, Tuscola, Lapeer, and St. Clair. Several roads were also reported to be damaged. Hundreds of basements were flooded, with some property damage also reported.||Here are some of the higher 5…

Flood · May 15, 2011. Three to five inches of rain over the weekend lead to flooding. Several roads were closed, mostly from Mill Creek overflowing its banks.

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 Lapeer County

If a building in Lapeer 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.