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County · code 45033

Dillon CountySouth Carolina

Dillon County is a county in South Carolina with its county seat in Dillon. It was created on February 5, 1910, from Marion County.

  • Founded1910
  • County seatDillon
  • Land area405 sq mi + 1.8 sq mi water
  • Population28,292 2020 Census
  • Parcels mapped20,752 checked 14 October 2026
Open the free map Click any parcel in Dillon County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

MarionMarlboroRobeson, NCFlorenceHorryColumbus, NC Dillon Census outline · seat marked

Where it is

Dillon 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 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 CountySumter CountyUnion CountyWilliamsburg CountyYork CountyDillon County Dillon
Counties of South Carolina · Dillon highlighted

History

Formed in 1910 from Marion County

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

Dillon was created from Marion on February 5, 1910.

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

  1. 1910
    Dillon County created Dillon created from Marion.
    from Marion
    · S.C. Acts 1910, no. 436, sec. 1/pp. 863-864

Land and parcels

What the maps cover in Dillon

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

Dillon by the Census

Population
28,292 2020 Census count
Housing units
12,779 2020 Census count
Land area
405 square miles
Water area
1.8 square miles
People per sq mi
70 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.

Records

Zoning and code

GIS and maps

County government

See your own lot on these maps

Open Dillon 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.

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Questions

Common questions about Dillon County

When was Dillon County founded?
Dillon County was founded in 1910, formed from Marion County.
What is the county seat of Dillon County?
The county seat of Dillon County is Dillon.
Is there an online parcel map for Dillon County?
Yes. South Carolina Forestry Commission (state agency; Forest Stewardship priority parcels derived from county parcels) publishes a parcel map of 20,752 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Dillon County's boundary or name changed?
Dillon County was created in 1910 from Marion County. The Atlas of Historical County Boundaries records no boundary change since.
Is my lot in a flood zone?
We do not have flood maps for Dillon 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