- Sadorus
- Sailor Springs
- St Anne
- St Augustine
- St. Charles
- St David
- St Elmo
- St Jacob
- St Libory
- St Peter
- Salem
- San Jose
- Sandoval
- Sandwich
- Sandwich Township
- Saunemin
- Savoy
- Sawyerville
- Saybrook
- Schaumburg
- Schaumburg Township
- Scheller
- Schiller Park
- Sciota
- Scott Afb
- Scottville
- Seaton
- Secor
- Seneca
- Serena
- Sesser
- Seward
- Shabbona
- Shannon
- Sheffield
- Shelbyville
- Sheldon
- Sheridan
- Sherman
- Sherrard
- Shiloh
- Shipman
- Shirland
- Shirley
- Shobonier
- Shorewood
- Shumway
- Sidell
- Sigel
- Silvis
- Simpson
- Sims
- Skokie
- Smithboro
- Smithfield
- Smithshire
- Smithton
- Somonauk
- Sorento
- South Barrington
- South Beloit
- South Elgin
- South Holland
- South Jacksonville
- South Pekin
- South Roxana
- South Wilmington
- Sparland
- Sparta
- Speer
- Spring Grove
- Spring Valley
- Springfield
- Springfield Township
- Stanford
- Staunton
- Staunton Township
- Steeleville
- Steger
- Sterling
- Steward
- Stewardson
- Stillman Valley
- Stockton
- Stone Park
- Stonefort
- Stonington
- Stoy
- Strasburg
- Streamwood
- Streator
- Stronghurst
- Sugar Grove
- Sugar Grove Township
- Sullivan
- Summerfield
- Summit Argo
- Sun River Terrace
- Sutter
- Swansea
- Sycamore
- Sycamore Township
Illinois Real Estate Offices In Cities Starting with "S"
Illinois Offices in Cities Starting With “S”
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