Sign Regulations in Dorchester County, SC (2026)

2 rules for unincorporated Dorchester County, South Carolina.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Dorchester County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Window Signs

Window signs in Dorchester County cannot cover more than 10 percent of a window's aggregate area, on top of whatever facade signage a business already displays. The cap comes from Zoning and Land Development Standards Section 13.5.7(k), and because window signs are not on the county's exempted-sign list, a sign permit under Section 13.5.6 is still required.

Dorchester County Window Sign Coverage Limit

Light Restrictions

Dorchester County, SC, Zoning and Land Development Standards (Ord. No. 04-13), § 13.5.7(k)

Window Signs: In addition to signage permitted under facade signs, window signs may be displayed, provided that no more than ten (10) percent of the aggregate area of the window is covered by such signage.

Full ordinance details →Official source ↗

Freeway-Facing Signs

Dorchester County limits billboards to the rights-of-way of expressways or within fifty feet of one, and only where that land is zoned Commercial General or Industrial. Under Zoning and Land Development Standards Section 13.5.7(i), a billboard must be the sole freestanding sign on its lot, cannot exceed set dimensions or 70 feet in height near elevated roadways, and must sit at least 1,000 feet from the next billboard on the same roadway side.

Dorchester County Freeway-Facing Billboard Rules

Significant Restrictions

Dorchester County, SC, Zoning and Land Development Standards (Ord. No. 04-13), § 13.5.7(i)

Billboards shall be permitted only in the rights-of-way of expressways or within fifty feet (50') of such, provided those signs off the rights of way are within Commercial General or Industrial Zoning Districts. Billboards shall not be erected in vertical stacked configurations. Additionally, billboards shall be the only freestanding signage on a lot of record. (1) Billboards shall comply with ...

Full ordinance details →Official source ↗

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