FEMA flood zones · Maryland

Wicomico County, Maryland Flood Zone Map

244 flood insurance claims·$5.9M paid·4 federal flood & hurricane disasters

17% of Wicomico County’s area is in FEMA’s high-risk flood zones, and another 1% 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 Wicomico County, Maryland. 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 Wicomico County floods

Flash flooding from summer thunderstorms and recurring coastal flooding dominate the flood profile of Wicomico County, supported by NOAA records that logged 21 flash flood events, 9 coastal flood events, and 9 standard flood events over the last 30 years. Recent impacts include an October 2025 coastal low and high pressure system that caused widespread moderate to locally major tidal flooding across the lower Maryland Eastern Shore, as well as slow-moving August 2025 storms that produced heavy rainfall and localized flooding in the Salisbury area.

National Flood Insurance Program claims data indicates that risk extends beyond high-risk areas. Properties located in Zone A experienced the highest impact with 165 claims, an average payout of $38,818, and an average recorded water depth of 6 inches. However, properties in Zone X also recorded significant activity with 51 claims, an average payout of $21,698, and an average water depth of 7 inches, while Zone X_UNSHADED, Zone X_SHADED, and unknown zones recorded a combined 27 claims with average payouts ranging from $588 to $10,848 and average water depths of 1 to 2 inches.

Homeowners and real estate professionals in designated high-risk coastal and riverine areas should pay the closest attention to these patterns, though property owners in Zone X must also note that significant flood claims and water accumulation occur outside standard high-risk zones.

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

Where the flood claims came from

13% of Wicomico County’s flood insurance claims were on properties rated outside FEMA’s high-risk zones.

190 NFIP claims with a recorded rated flood zone, 1978 to date. The zone is the one FEMA used to rate that policy, which may not match today’s map. Source: OpenFEMA NFIP claims.

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 6 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 2012, with 68 claims and $1.8M paid, the year of Hurricane Sandy.

1979: 1 claims1983: 1 claims1986: 1 claims1991: 1 claims1992: 1 claims1993: 4 claims1994: 3 claims1996: 1 claims1998: 3 claims1999: 9 claims2001: 1 claims2002: 1 claims2003: 34 claims2004: 2 claims2005: 6 claims2006: 2 claims2009: 5 claims2010: 5 claims2011: 4 claims2012: 68 claims2013: 4 claims2015: 2 claims2016: 31 claims2017: 14 claims2018: 14 claims2019: 2 claims2020: 2 claims2021: 6 claims2022: 5 claims2023: 6 claims2024: 4 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.

In their words

10 NOAA storm reports from Wicomico County describe what happened, in the words of the forecasters who covered it. Read the Maryland flood stories →

Federal disasters

14 federal disaster declarations since 1972, 4 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Winter StormJan 23, 2026
Hurricane SandyOct 26, 2012
Hurricane IreneAug 26, 2011
Severe Winter Storms And SnowstormsFeb 5, 2010
Hurricane Katrina EvacuationAug 29, 2005
Hurricane IsabelSep 18, 2003
Blizzard Of 96 (severe Snow Storm)Jan 6, 1996
Severe Snowfall & Winter StormMar 13, 1993

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

Recorded flood events

50 since 1996: 21 flash floods, 9 river or area floods and 9 coastal floods or surges.

EventDateDamage
Coastal FloodOct 29, 2025—
Coastal FloodAug 21, 2025—
Flash FloodAug 14, 2025—
Coastal FloodOct 12, 2025—
Coastal FloodNov 15, 2024—
Flash FloodJul 12, 2024—
Tropical StormSep 22, 2023$20,000
Flash FloodDec 18, 2023—

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

From the storm reports

Coastal Flood · Oct 29, 2025. Low pressure off the Mid-Atlantic coast combined with high pressure in Canada, resulting in a lengthy period of northeasterly onshore flow. Increasing tidal anomalies resulted in moderate to locally major tidal flooding over an extended period.

Coastal Flood · Aug 21, 2025. Hurricane Erin passed well offshore and combined with high pressure to the north, resulting in a period of strong onshore winds and coastal flooding across the Lower Maryland Eastern Shore.

Flash Flood · Aug 14, 2025. A late-summer hot and humid airmass was in place across the lower Maryland Eastern Shore on August 14. Additionally, a slow-moving cold front stalled southern Maryland, extending southwest in Virginia. Showers and storms with heavy rainfall produced localized flooding in the Salisbury area in the afternoon.

Coastal Flood · Oct 12, 2025. A coastal low formed off of the Southeast coast on October 11 and slowly tracked north into October 13 before moving offshore. Meanwhile, a strong 1035mb area of high pressure lingered over the Gulf of Saint Lawrence. This resulted in a prolonged period of strong northeast to north winds across the Chesapeake Bay and coastal waters, which allowed for widespread moderate coastal flooding across the lower Maryland E…

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 Wicomico County

If a building in Wicomico 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.