Blog · October 14, 2026 · South Carolina
Union Flood Zone Map, South Carolina: a practical guide
Flood zones are set by FEMA, and checking one near Carlisle takes a few minutes.
Main page: Union County, SC GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Lockhart, pull up the Union flood zone map: a mapped flood zone changes insurance, building rules and resale. In this Union guide: finding the address on FEMA's map, decoding A, AE and X, and matching it with the county parcel viewer.
The Union flood zone map: start here
The official source is FEMA's Flood Map Service Center: type an address near Jonesville, and pick the FIRMette or map view. A tract near Jonesville without an address is still easy to locate: zoom in from US Route 176 and click inside the land.
The viewer Union County publishes
Your first stop is the Union County Beacon site; it includes every assessed parcel around Carlisle and Jonesville. When a rural tract has no street number, pan along US Route 176 and click the parcel itself. With a lot near Carlisle, write down the parcel ID while you have it open; every records desk in the county asks for it first.
Beyond the mapped zones
Small streams around Jonesville aren't always studied in detail, so walk the land after rain. Wetlands near Lockhart can limit building even outside a flood zone; the National Wetlands Inventory mapper shows mapped wetlands.
Who handles what
Recorded documents for a parcel near Lockhart come from the Register of Deeds (in some counties the Clerk of Court), often with an online index. Zoning, permits and septic questions near Jonesville go to planning, building or health offices, and the answer depends on jurisdiction.
Union County in a few facts
Union holds the county offices, which is where the courthouse records live. You'll also find Jonesville, Lockhart, and Carlisle, where town lots give way to larger tracts. Around 26,629 people live in Union County (Census Bureau estimate, 2023) across about 514 square miles. Union County was formed in 1785, which matters when you trace an old farm's title. Features like Sumter National Forest help you orient on the aerial around Lockhart.
Union and the county around it
Union sits in Union County, South Carolina, which means parcel data comes from the county. As the county seat, Union hosts the courthouse, handy when you need recorded documents. For a parcel near Jonesville, city or town hall handles things like zoning, permits and utilities for lots inside the boundary, while the county keeps the tax map. Acreage past the city limits toward Jonesville generally follows county rules instead.
Reading A, AE and X
Out toward Carlisle, any A or V zone are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any year. For acreage around Lockhart, a low-risk label isn't a guarantee: FEMA notes that floods happen outside mapped zones too.
How land is described here
Tracts outside towns near Jonesville are often described by metes and bounds, a series of courses and distances from a starting point. Subdivision lots in Lockhart refer to a recorded plat, which is simpler to follow. Keep the legal description for land near Lockhart for any title or survey request.
When a parcel crosses a boundary
The county borders Cherokee County, Chester County, Fairfield County, Laurens County, and Newberry County; every one of them runs a separate parcel map around Jonesville. A tract near the line by Jonesville may show up in two county records, so look at the adjacent map too. For a home near Lockhart, our state page lists every neighboring county map for South Carolina.
A word on accuracy
The acreage figure is an estimate; only a licensed surveyor can set the real corners for a parcel near Lockhart. Out toward Jonesville, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Questions to ask before you buy
Ask the listing agent whether the home has flooded on the property near Jonesville; an insurance quote early keeps the budget honest.
Lining it up with the parcel map
FEMA doesn't draw property lines, so check the Union County Beacon site too to confirm you have the right parcel near Carlisle.
What a flood zone means for a buyer
If you're looking near Carlisle, ask for an Elevation Certificate: it records the building's elevation against the base flood. Remodeling a house in a zone near Jonesville often needs a floodplain permit; ask the local floodplain administrator before you plan.
Questions about the Union flood zone map
What is a LOMA in Union?
Short answer: FEMA's LOMA process is the usual route when a building near Lockhart sits above the base flood elevation, and lenders accept the result.
Can I see flood zones on the Union County Beacon site?
Good question; a flood layer may appear in the county Beacon site layer list, though it can lag behind FEMA's current panels, at least around Jonesville.
How often are flood maps updated in Union?
It depends, but a new study can move a zone line near Carlisle; your community is notified before changes take effect.
When is flood insurance required around Carlisle?
In most cases, lenders generally require it for buildings near Carlisle in a Special Flood Hazard Area when the loan is federally regulated or insured; elsewhere it's optional.
What's a legal description around Carlisle?
For property near Lockhart, Deeds use lot and block, metes and bounds or survey descriptions; copy it for any survey or title request.
Open the official Union County, SC parcel map See it 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.