There are 181 unique surnames beginning with S:

Sanders	Sanderson	Sandridge	Sands	Sandusky	Sandy	Sappin
Sarver	Saunders	Savage	Saygrover	Sayre	Sceva	Schaeffer
Schalip	Schambs	Scheiderer	Scheller	Schilke	Schlabach	Schlegel
Schmeltzer	Schmelzer	Schmidt	Schoenloeb	Schultz	Scott	Seig
Sells	Severe	Shackelford	Shackleford	Shadow	Shadrach	Shaffer
Sharp	Shaw	Shay	Shearer	Sheckler	Sheehan	Sheets
Sheldon	Shelhart	Sheller	Shelley	Shepherd	Sheppard	Shepperd
Sherburne	Sheridan	Sherman	Sherwood	Shields	Shiller	Shipley
Shirk	Shively	Shoeleb	Shoemaker	Shotts	Shout	Shover
Shuler	Shultz	Shumway	Sidle	Sidner	Siegel	Signor
Silleman	Silverthorn	Simmons	Simms	Simpson	Singer	Skeels
Skidmore	Slack	Slane	Slater	Slatterly	Slavin	Slemmons
Slenker	Slicer	Sloan	Small	Smedley	Smith	Smothers
Sneed	Snider	Snodgrass	Snouffer	Snuffer	Snyder	Solis
Sommer	Sommers	Sorgen	South	Southard	Southwick	Spain
Sparks	Speakman	Spear	Spears	Speese	Spencer	Spicer
Spiller	Spoolam	Spoolman	Sprague	Spratt	Spriggs	Spurgeon
St. Clair	St. John	Stafford	Stahl	Stalder	Staley	Stamates
Standish	Stanley	Stansberry	Stansbury	Star	Stark	Starkey
Starling	Stead	Steel	Stephen	Stevens	Stevenson	Stewart
Stickney	Stidam	Stidham	Stifler	Stiggers	Stillinger	Stimmel
Stine	Stiner	Stitham	Stithem	Stokes	Stoll	Stoner
Storey	Storms	Stough	Stout	Stover	Strain	Strapp
Stratton	Street	Streeter	Streng	String	Stuart	Stull
Stults	Stultz	Stump	Sturdy	Sturgeon	Suddeth	Suddith
Sullivan	Swartz	Swartzbaugh	Sweeney	Swift	Swisher

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