County · code 45067
Marion CountySouth Carolina
Marion County is a county in South Carolina with its seat in Marion. It was founded in 1800 and named after Francis Marion.
- Founded1800
- County seatMarion
- Named forFrancis Marion
- Land area489 sq mi + 4.8 sq mi water
- Population29,183 2020 Census
- Parcels mapped23,484 checked 14 October 2026
Where it is
Marion 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.
History
Founded in 1800
An old deed may name a county that no longer exists, or a boundary that has since moved.
In 1868, Marion District became Marion County when a new state constitution abolished all judicial districts. Marion County lost territory to the creation of Florence County in 1888 and Dillon County in 1910.
- 1868Eliminated Marion District eliminated, became Marion County when new state constitution abolished all judicial districts. Marion County assumed all functions of local government from both judicial districts and parishes. · Swindler, 8:497
- 1888Lost territory Marion lost to creation of Florence. · S.C. Acts 1888, no. 99, sec. 1/pp. 168-169
- 1910Lost territory Marion lost to creation of Dillon. · S.C. Acts 1910, no. 436, sec. 1/pp. 863-864
Land and parcels
What the maps cover in Marion
Who publishes each layer, how good it is, and when we last checked.
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Parcels Fallback
Lot lines and tax-map numbers for 23,484 parcels from South Carolina Forestry Commission (state agency; Forest Stewardship priority parcels derived from county parcels). Drawn for tax purposes: usually within a few feet of a survey, but not a survey. This copy is a fallback, not the county's own: use it as a guide and check the official record.
edited 29 April 2026 · checked 14 October 2026 -
Address points Missing
No public address points layer found for Marion County yet.
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Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- 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
Marion by the Census
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
- County government
The official website of Marion County.
See your own lot on these maps
Open Marion 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.
Questions
Common questions about Marion County
- When was Marion County founded?
- Marion County was founded in 1800, and named after Francis Marion.
- What is the county seat of Marion County?
- The county seat of Marion County is Marion.
- Is there an online parcel map for Marion County?
- Yes. South Carolina Forestry Commission (state agency; Forest Stewardship priority parcels derived from county parcels) publishes a parcel map of 23,484 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Marion County's boundary or name changed?
- Atlas of Historical County Boundaries records 3 changes for Marion County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Dillon County and Florence County.
- Who issues building permits in Marion 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 Marion County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby