Blog · September 24, 2026 · South Carolina
Charleston County, South Carolina GIS Parcel Map Guide
Charleston County’s free Parcel Search viewer covers the peninsula, Mount Pleasant, North Charleston, James and Johns Islands, and the rural stretch from Edisto to McClellanville.
Main page: Charleston County, SC GIS & Parcel Viewer (official map link, Charleston County facts and neighboring maps).
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In Charleston County, a parcel can be a peninsula single house on a narrow lot, a marsh-front tract on Wadmalaw, or pine land near the Francis Marion. The Charleston County Parcel Search viewer brings them together, and in South Carolina it helps to know one number: the TMS.
Search by TMS number, owner or address
South Carolina counties identify parcels by a tax map number, usually shortened to TMS. In Charleston County it is a ten-digit number. The county’s parcel layer calls it the PID. The viewer’s search box accepts a TMS or PID, an address, a street name or an owner name. Press Enter and the matching parcels appear.
- For the Auditor’s property record cards, type the TMS without dashes or spaces. Some records add a letter A or B after the ten digits.
- Selecting a parcel shows a summary and links to tax details, so you rarely need a separate search.
- Island and marsh parcels can be long and thin. Zoom in before clicking so you pick the right one.
What the Parcel Search viewer includes
The viewer is an Esri web map published by Charleston County GIS. Along with parcels it offers measure tools and a My Location button. Links in the header go to the county GIS office and the Register of Deeds (ROD), which is where you will go for deeds and plats. It is free and needs no account. The Charleston County entry in our South Carolina directory carries the working link, and the interactive national map does too.
How to find property lines in Charleston County
- Search by TMS number and record the owner and legal description.
- Search the Register of Deeds for the plat and deed. The viewer header links straight to the ROD.
- Compare the plat to the ground. In marsh areas, newer plats often show the state’s critical line. Note where it falls, because it affects docks and fill.
- Hire a South Carolina Professional Land Surveyor for anything involving a dock, fence, bulkhead or buyer’s survey.
Is the Charleston County GIS map accurate?
For identifying a parcel, yes. For boundaries, no. Parcel lines come from recorded documents fitted to aerial photos, and the Lowcountry’s shifting marsh edges and centuries-old lot lines add uncertainty. Downtown lots can date back to colonial surveys, and marsh-side lines may follow boundaries that have moved since they were drawn. A survey is the only way to settle where a line is. Our piece on GIS lines versus survey lines explains the difference.
Charleston County acreage map for rural land
North of Awendaw and McClellanville, much of the land lies in or near the Francis Marion National Forest. South, toward Edisto and the ACE Basin area, there are plantations, conservation easements and farm tracts. The parcel viewer tells you who owns each tract, which is the first step in asking for hunting or access permission. Public hunting on national forest and state-managed lands follows South Carolina DNR rules, including its Wildlife Management Area program. Check those before heading out. Conservation easements are recorded documents, and they limit what can be built even when the land looks empty.
Island and marsh parcels
Charleston County’s sea islands, including James, Johns, Wadmalaw, Edisto and Kiawah, each have their own land patterns. Some have gated resort communities with their own associations and rules. Others have old family land, often heirs’ property, where title can be complicated because ownership has passed without a probate for generations. The parcel viewer shows the current owner of record, but on heirs’ property that name may belong to someone long deceased. If a tract looks like it is held by an estate or many relatives, expect a title attorney to be part of any deal.
Charleston County plat book and plat search
Recorded plats in Charleston County are filed with the Register of Deeds, which you can search through its records system. No commercial county plat book is sold here. Between the free viewer and ROD records, you have both a current ownership map and the official drawings. Plats are an especially good source for easements and marsh lines on older island parcels.
Who uses the Charleston viewer
Buyers relocating to Mount Pleasant or James Island look up flood zones and neighbors, and investors map every parcel one owner holds. Preservation-minded owners downtown use the TMS to pull historic records. Fishing and hunting clubs check who owns the tracts around a lease. Dock builders need the TMS and recorded plat before they apply for permits. Almost all of these start with a TMS search.
Flood, zoning and tax notes
Much of Charleston County is low and flood-prone, so check FEMA flood zones before you make an offer (flood zones explained). Zoning is set by the county in unincorporated areas and by Charleston, North Charleston, Mount Pleasant and the smaller towns within their limits. Tax bills come from the Treasurer, and assessments are handled by the Assessor.
Viewer not loading? Try this
The county has used both charlestoncounty.org and charlestoncounty.gov web addresses, so if an old bookmark fails, start from our directory link. Clear the cache if the search box does nothing, and use a desktop browser for printing. Other coastal viewers are collected on the South Carolina hub page, and our Horry County guide covers the Grand Strand.
Frequently asked questions
What is a TMS number in Charleston County?
TMS stands for tax map number. Charleston County uses a ten-digit TMS, also called the PID, to identify each parcel for mapping and taxes.
Is the parcel number the same as the tax ID in Charleston County?
Yes. The TMS works as both the parcel number and the tax ID for assessor, auditor and treasurer records.
Are Charleston County plat maps public record?
Yes. Recorded plats are public records at the Register of Deeds, and anyone can search and view them.
Open the official Charleston County GIS viewer Charleston 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.