Blog · October 14, 2026 · Virginia
King George County Flood Zone Map (Virginia)
Look up any King George County address on FEMA's flood map, read the zone, and match it to the parcel record for land around Dahlgren Center.
Main page: King George County, VA GIS & Parcel Viewer (official map link, King George County facts and neighboring maps).
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Is that lot in Dahlgren Center in a flood zone? The King George County flood zone map answer comes from FEMA, and it is free to look up. Here's how to read FEMA's map for a King George County, VA property and match it to the parcel record.
We'll cover finding a King George County address on FEMA's map, what Zone A, AE and X mean, how the county viewer fits in, and what to do if the map looks wrong.
How to check the King George County flood zone map
Open the FEMA Flood Map Service Center and type a county street address, say one in Dahlgren. The site returns the effective Flood Insurance Rate Map (FIRM) panel covering that Dahlgren location, which you can view or download. For an interactive view of King George County, the National Flood Hazard Layer viewer is easier to use, which lists how much of a King George County parcel sits inside the zone. Then open the King George County ArcGIS parcel map for King George County to confirm the parcel near Dahlgren. Laying the county parcel outline beside the FEMA shading lists if a homesite near Dahlgren Center sits above or inside the zone.
Search King George County parcels by owner, address or ID
King George County publishes its parcels on the King George County ArcGIS parcel map, which runs on an Esri ArcGIS web map, free to use for a lot in Dahlgren or a property near Fairview Beach. Use the search box for an address in Dahlgren or a parcel number, or simply zoom in and click a property near Fairview Beach. For a backup route to the map covering Fairview Beach, our King George County directory entry keeps the link current.
Zone A, AE and X in plain English
For a lot in Dahlgren, the label matters more than the color: A and V zones are Special Flood Hazard Areas, meaning FEMA estimates a 1-percent annual chance of flooding. Zone AE near Dahlgren Center means FEMA published a base flood elevation; plain Zone A means no detailed elevation was studied. Shaded Zone X around Dahlgren sits in the moderate band between the 100-year and 500-year floods. Unshaded Zone X near Dahlgren Center is minimal risk.
Creeks, rivers and low ground in King George County
Parcels touching Rappahannock River deserve a FEMA check before anything else in King George County. Lines on those King George County parcels commonly follow the water, so part of the tract can be mapped as high risk. A low spot on a King George County tract outside any mapped zone can still flood; FEMA says moderate- and low-risk areas still carry risk.
From King George to the back roads
Courthouse business for King George County runs through King George. Unincorporated communities in the county, including Dahlgren, Dahlgren Center, and Fairview Beach, display up as small groups of parcels along the roads. Census Bureau estimates put King George County at about 28,568 residents in 2023 on roughly 180 square miles of land. Platted neighborhoods near Dahlgren Center give way to rural acreage elsewhere in the county.
Near the King George County line
King George County borders Charles County, MD, Caroline County, Essex County, Stafford County, and Westmoreland County, and each keeps its own parcel map and records. Our Virginia page links each map neighboring King George County.
Flood insurance and building rules in King George County
Lenders watch the zone closely on King George County properties. When a county home is mapped in a high-risk zone and secures a loan from a federally regulated or insured lender, flood insurance is mandatory; that applies where the local government around Dahlgren Center is in the National Flood Insurance Program. For a King George County home in shaded or unshaded X, coverage is optional, although a lender in Virginia can still ask for it. Where a structure near Dahlgren looks higher than the shading suggests, FEMA's LOMA process allows a review, most commonly backed by an elevation certificate from a surveyor who works in the county. Building or filling inside a mapped zone near Dahlgren most commonly needs a floodplain permit; the county floodplain administrator can say what applies.
King George County land records
Deeds and plats behind the King George County map are kept by the county's recording office; the official King George County website names which office that is. Copy the parcel identifier and legal description from the county record before you request a deed for land near Fairview Beach.
King George County flood zones questions
Is Zone AE near Fairview Beach high risk?
Yes, a property near Fairview Beach in Zone AE is high risk: a 1-percent-annual-chance floodplain where FEMA lists a base flood elevation.
Can I build in a flood zone in King George County?
Building in a Special Flood Hazard Area near Dahlgren Center most commonly needs a floodplain permit and may require elevating the structure, so check with the county floodplain administrator.
Who prepares an elevation certificate for a house in Dahlgren Center?
Hire a licensed surveyor or engineer who works in King George County; ask the local floodplain office first in case one exists.
Does the King George County parcel map display flood zones?
Check the layer list in the King George County ArcGIS parcel map; if King George County includes a floodplain layer, confirm the zone on FEMA's map anyway.
What does 100-year flood mean for King George County land?
No; land near Fairview Beach in the 100-year floodplain carries a 1-in-100 chance in any single year, and two floods in one decade near Dahlgren Center are possible.
How do I know if a property in King George County is in a flood zone?
FEMA's free map service covers King George County: enter the address or pan to the property near Fairview Beach, then note the zone label.
Open the official King George County, VA parcel map King George County in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.