Location
- South Carolina--Clarendon1
- South Carolina--Columbia1
- South Carolina--Lancaster1
- South Dakota4
- South Dakota--Fremman1
- South Sudan1
- Southeast2
- Southeast Asia1
- Southern Appalachian Region2
- Southern States2
- Soviet Union2
- Spain5
- Sri Lanka5
- St Louis--MO 1
- Sub-Saharan Africa1
- Sudan3
- Swaziland1
- Sweden4
- Sweden--Vänersborg1
- Switzerland1