Blog · October 14, 2026 · South Carolina
York County Flood Zone Map (South Carolina)
FEMA's free flood maps and the York County parcel viewer, used together for property near Tega Cay.
Main page: York County, SC GIS & Parcel Viewer (official map link, York County facts and neighboring maps).
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Land along Anne Springs Close Greenway - Adventure Road/Lake Haigler and the flats outside Tega Cay are where a York County flood zone map lookup matters most. You can check it yourself for any Tega Cay address in a few minutes.
Below are the FEMA links, a plain reading of the zone labels, notes on where water shapes land around Tega Cay, and short answers to common questions.
Look up the York County flood zone map step by step
FEMA's official flood maps for York County are free at the FEMA Flood Map Service Center. The site returns the effective Flood Insurance Rate Map (FIRM) panel covering that Fort Mill location, which you can view or download. For an interactive view of the county, try FEMA's National Flood Hazard Layer viewer and reports the zone wherever you click near Fort Mill. Then open the York County ArcGIS parcel map for York County to confirm the parcel near Fort Mill. The York County record gives the parcel number and legal description that an insurer or lender near Fort Mill may ask for.
Step one: the free York County viewer
For land around McConnells, open the York County ArcGIS parcel map (an Esri ArcGIS web map); it is the map York County itself publishes. Most people locate their York County tract fastest by searching an address in McConnells, then clicking the outline. Our York County, SC page keeps the official link and the maps next door to McConnells in one place.
Reading the zones on a York County flood map
For a lot in Fort Mill, the label matters more than the color: A and V zones are Special Flood Hazard Areas, defined by a 1-percent annual chance of being flooded. Zone AE near Rock Hill means FEMA published a base flood elevation; plain Zone A means no detailed elevation was studied. Land near Rock Hill in shaded X (Zone B on older maps) is moderate risk, between the 1-percent and 0.2-percent annual chance lines. Clear, unshaded X near Fort Mill is outside the 500-year floodplain.
Waterfront parcels near Rock Hill
In York County, look closest at tracts along Anne Springs Close Greenway - Adventure Road/Lake Haigler. Lines on those York County parcels often follow the water, so part of the tract can be mapped as high risk. Small streams and ditches near Fort Mill may not be studied in detail, which is why it is worth walking the ground after a heavy rain.
Seller questions about flood history
For a house near Rock Hill, ask the seller for any elevation certificate on file and the current flood insurance declarations page. Then call an insurance agent who writes policies around Tega Cay and get a quote using the zone and the county parcel address.
Floodways and restudies near Fort Mill
Look at the effective date printed on the county panel, since a new study can redraw zones around Hickory Grove. If a tract close to Fort Mill lists a hatched floodway, expect tight limits on fill and new structures from the county floodplain office.
Insurance, permits and map changes
Here's why the zone matters at a closing in Fort Mill. When a structure near Rock Hill falls inside an A or V zone and is financed by a regulated or federally insured lender, flood insurance is mandatory under the Flood Disaster Protection Act, wherever the community joins the NFIP. For a York County home in shaded or unshaded X, federal rules do not require a policy, although some lenders require it anyway. When a county homesite is on a rise inside a mapped zone, the landowner can ask FEMA for a Letter of Map Amendment (LOMA); a surveyor near Rock Hill can supply the elevation data. Placing fill on low ground near Fort Mill often requires a permit and an elevation check, and the building office serving Rock Hill explains the steps.
York County flood zones questions
Who prepares an elevation certificate for a house in McConnells?
A professional surveyor or engineer prepares it, and the building office serving McConnells may already have one on file for newer construction.
Is there a floodplain layer in the York County ArcGIS parcel map?
Look for a flood or floodplain layer in the York County viewer, then verify the zone with FEMA.
What is a base flood elevation for a York County property?
On the map covering McConnells, it is the projected water surface in the base flood, and it is printed in AE zones.
How do I challenge a flood zone for a lot in McConnells?
An owner near Rock Hill can request a Letter of Map Amendment from FEMA with elevation data, most often from a professional surveyor.
Does a 100-year floodplain near Rock Hill flood only once a century?
No; land near Rock Hill in the 100-year floodplain faces a 1-percent annual chance, so floods can come in back-to-back years.
Open the official York County, SC parcel map York 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.