FEMA flood zones · Virginia

Lancaster County, Virginia Flood Zone Map

396 flood insurance claims·$5.7M paid·9 federal flood & hurricane disasters

15% of Lancaster 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 Lancaster County, Virginia. 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 Lancaster County floods

Flash flooding from heavy rainfall and coastal flooding from prolonged northeast winds dominate the flood history of Lancaster County, Virginia. Over the last 30 years, NOAA recorded 26 flash flood events and 24 coastal flood events, alongside tropical storms, general floods, and hurricanes. Recent events illustrate these hazards, including a prolonged coastal flood driven by strong northeast winds from October 12 to 13, and flash flooding caused by slow-moving, moisture-rich convection on July 19.

Federal flood insurance claims data shows impacts across multiple zones, with the highest claim volume concentrated in high-risk areas. Zone A accounts for 310 claims with an average payout of $15,998 and an average recorded water depth of 5 inches. Zone X records 47 claims with an average payout of $37,275 and an average recorded water depth of 3 inches. Zone V includes 21 claims with an average payout of $20,134 and an average recorded water depth of 1 inch.

Property owners in Zone A and Zone V coastal areas, as well as residents in moderate-risk Zone X locations who have experienced higher average payout costs per claim, should pay the closest attention to these flood risks.

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

Where the flood claims came from

Less than 1% of Lancaster County’s flood insurance claims were on properties rated outside FEMA’s high-risk zones.

332 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 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 2003, with 154 claims and $2.8M paid, the year of Hurricane Isabel.

1985: 12 claims1994: 1 claims1996: 5 claims1998: 10 claims1999: 5 claims2003: 154 claims2004: 1 claims2006: 137 claims2009: 22 claims2010: 7 claims2011: 18 claims2012: 5 claims2013: 2 claims2015: 3 claims2016: 2 claims2018: 6 claims2020: 4 claims2023: 1 claims2024: 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

18 NOAA storm reports from Lancaster County describe what happened, in the words of the forecasters who covered it. Read the Virginia flood stories →

Federal disasters

25 federal disaster declarations since 1972, 9 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Winter StormJan 22, 2026
Severe Winter StormsFeb 11, 2021
Tropical Storm MichaelOct 9, 2018
Hurricane FlorenceSep 13, 2018
Hurricane SandyOct 26, 2012
Hurricane IreneAug 26, 2011
Tropical Depression Ernesto, Severe Storms And FloodingAug 29, 2006
Hurricane Katrina EvacuationAug 29, 2005

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

Recorded flood events

62 since 1996: 26 flash floods, 5 river or area floods and 24 coastal floods or surges.

EventDateDamage
Coastal FloodOct 28, 2025—
Coastal FloodAug 21, 2025—
Flash FloodJul 19, 2025—
Flash FloodMar 17, 2025—
Coastal FloodOct 12, 2025—
Coastal FloodOct 2, 2025—
Coastal FloodSep 20, 2024—
Flash FloodJul 20, 2024$75,000

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

From the storm reports

Coastal Flood · Oct 28, 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 eastern Virginia and the Virginia Eastern Shore.

Flash Flood · Jul 19, 2025. A stationary front was anchored north of the area in Pennsylvania. Deep moisture was in place to the south of the front with precipitable water values near two inches. Strong surface heating resulted in robust instability with wind shear around 25 knots, allowing for deep, slow moving, convection capable of heavy rainfall and flash flooding during the afternoon and evening hours.

Flash Flood · Mar 17, 2025. Scattered showers and thunderstorms developed ahead of a slow-moving cold front on March 16 across southeast Virginia. These showers and storms trained over the same areas into early on March 17, allowing for heavy rain and instances of flash flooding across portions of southeast Virginia on March 16 and 17.

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 coastal flood zoneDiagram: land rising away from the shore. The 1%-annual-chance flood surface reaches inland; where storm waves ride on top of it the zone is V or VE, behind that AE, then a band of shaded X, then X on higher ground.0.2% CHANCE A YEAR (500-YEAR)BASE FLOOD ELEVATION · 1% A YEARXX shadedAEVE
  1. VE / V Storm waves of 3 feet or more ride on top of the flood. Strictest building rules; homes go up on pilings.
  2. 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.
  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 Lancaster County

If a building in Lancaster 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.