Parcel Chartplaces Open the free map

County · code 45085

Sumter CountySouth Carolina

Sumter County is in South Carolina, with its seat in Sumter, and was founded in 1800. The county is named after Thomas Sumter.

  • Founded1800
  • County seatSumter
  • Named forThomas Sumter
  • Land area665 sq mi + 17 sq mi water
  • Population105,556 2020 Census
  • Parcels mapped61,681 checked 16 October 2026
Open the free map Click any parcel in Sumter County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

LeeClarendonCalhounKershawRichlandFlorence Sumter Census outline · seat marked

Where it is

Sumter on the map of South Carolina

South Carolina has 46 counties and county equivalents, each with its own records office. Shapes with a page are links.

Abbeville CountyAiken CountyAllendale CountyAnderson CountyBamberg CountyBarnwell CountyBeaufort CountyBerkeley CountyCalhoun CountyCharleston CountyCherokee CountyChester CountyChesterfield CountyClarendon CountyColleton CountyDarlington CountyDillon CountyDorchester CountyEdgefield CountyFairfield CountyFlorence CountyGeorgetown CountyGreenville CountyGreenwood CountyHampton CountyHorry CountyJasper CountyKershaw CountyLancaster CountyLaurens CountyLee CountyLexington CountyMcCormick CountyMarion CountyMarlboro CountyNewberry CountyOconee CountyOrangeburg CountyPickens CountyRichland CountySaluda CountySpartanburg CountyUnion CountyWilliamsburg CountyYork CountySumter County Sumter
Counties of South Carolina · Sumter highlighted

History

Founded in 1800

An old deed may name a county that no longer exists, or a boundary that has since moved.

Sumter District was eliminated and became Sumter County in 1868 when South Carolina's new state constitution abolished all judicial districts, and Sumter County assumed all functions of local government. The county experienced several boundary changes with Lee County between 1898 and 1902, including a temporary regain of lost territory when a state supreme court ruling found Lee's creation unconstitutional, followed by multiple adjustments with Clarendon County in the 1920s.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1868
    Eliminated Sumter District eliminated, became Sumter County when new state constitution abolished all judicial districts. Sumter County assumed all functions of local government from both judicial districts and parishes. · Swindler, 8:497
  2. 1898
    Lost territory Sumter lost to creation of Lee.
    to Lee.
    · S.C. Acts 1898, no. 575, sec. 1/p. 908
  3. 1899
    Lost territory Sumter regained area lost to 1898 creation of Lee when state supreme court ruled that creation unconstitutional.
    to Lee
    · S.C. Acts 1899, no. 122, sec. 1/p. 191
  4. 1902
    Lost territory Sumter lost to the re-creation of Lee.
    to Lee.
    · S.C. Acts 1902, no. 651, sec. 1/pp. 1194-1196
  5. 1914
    Gained territory Sumter gained from Lee.
    from Lee.
    · S.C. Acts 1914, Jan. sess., no. 379, sec. 1/pp. 647-648
  6. 1921
    Gained territory Sumter gained from Clarendon.
    from Clarendon
    · S.C. Acts 1921, no. 195, secs. 1, 11/pp. 283-285, 288; S.C. Reports, 116:258-262
  7. 1922
    Lost territory Sumter lost to Clarendon.
    to Clarendon
    · S.C. Acts 1922, no. 556, sec. 1/pp. 987-988

Land and parcels

What the maps cover in Sumter

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Sumter by the Census

Population
105,556 2020 Census count
Housing units
46,753 2020 Census count
Land area
665 square miles
Water area
17 square miles
People per sq mi
159 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Who to ask before you build, dig or sell

Official county pages only. We link to them; we do not copy them, because they change.

Inside a city or town, permits usually come from that city rather than the county.

Permits

Zoning and code

County government

See your own lot on these maps

Open Sumter County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

Open the free map no sign-in Pro early access

Questions

Common questions about Sumter County

When was Sumter County founded?
Sumter County was founded in 1800, and named after Thomas Sumter.
What is the county seat of Sumter County?
The county seat of Sumter County is Sumter.
Is there an online parcel map for Sumter County?
Yes. Sumter County publishes a parcel map of 61,681 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Sumter County's boundary or name changed?
Atlas of Historical County Boundaries records 7 changes for Sumter County. Since then the Atlas of Historical County Boundaries records 7 later changes, chiefly involving Lee. County, Clarendon County and Lee County.
Who issues building permits in Sumter County?
The county's page on building permits: Building Permit. Inside a city or town, ask that city first.
Is my lot in a flood zone?
We do not have flood maps for Sumter County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door