Sabula***Jackson
Sabula Junction***Jackson
Sac & Fox Agency***Wapello
Sac City (C.S.)***Sac
Sacton***Sac
Safeside***Guthrie
Sage***Palo alto
Sageville***Dubuque
Sailorville***Wapello
Saint Ansgar***Mitchell
Saint Anthony***Marshall
Saint Benedict***Kossuth
Saint Charles***Madison
Saint Charles City***Floyd
Saint Clair***Monona
Saint Donatus***Jackson
Saint George***Monona
Saint Gilman***Osceola
Saint Johan***Clayton
Saint Johns***Harrison
Saint Joseph***Kossuth
Saint Joseph Junction***Decatur
Saint Joseph's Prairie***Dubuque
Saint Julien***Linn
Saint Lucas***Fayette
Saint Marys***Warren
Saint Mary's***Linn
Saint Mary's***Mills
Saint Olaf***Clayton
Saint Paul***Lee
Saint Paul Junction***Plymouth
Saint Sebald***Clayton
Salem***Henry
Salem***Muscatine
Salina***Jefferson
Salix***Woodbury
Salt Creek***Davis
Salt Creek***Tama
Salubria***Van Buren
Samison***Shelby
Samoa***Jackson
Sampson***Winneshiek
Samville***Wayne
Sanborn***O'Brien
Sanbornton***Clinton
Sand Creek***Delaware
Sand Prairie***Lee
Sand Ridge***Des Moines
Sand Springs***Delaware
Sandersville***Hardin
Sandusky***Lee
Sandyville***Warren
Sanspring***Delaware
Santingo***Polk
Saratoga***Hamilton
Saratoga***Howard
Sargent***Floyd
Sargents Bluff***Woodbury
Sattre***Winneshiek
Saude***Chickasaw
Savanna***Jackson
Savannah***Davis
Sawyer***Lee
Saxon***Wayne
Saylor***Polk
Saylor Junction***Polk
Saylorsville***Polk
Sayre***Buena Vista
Scandia***Dallas
Scarville***Winnebago
Schaller***Sac
Schleswig***Crawford
Schley***Howard
Schoharie***Sac
Schonberg***Calhoun
Schonnberg***Warren
Schrunks***Clayton
Sciola***Montgomery
Scotch Grove***Jones
Scotland***Keokuk
Scott***Fayette
Scott***Floyd
Scott***Mahaska
Scott Center***Fayette
Scotts Mills***Linn
Scottswood***Pottawattamie
Scranton***Greene
Scranton City***Greene
Scranton Station***Greene
Searsboro***Poweshiek
Seaton***Fayette
Secor***Hardin
Sedalia***Guthrie
Sedan***Appanoose
Sedgewick***Decatur
Seevers***Jasper
Seigel***Bremer
Selection***Monroe
Selma***Van***Buren
Selma***Wayne
Seneca***Kossuth
Seney***Plymouth
Sepanamo***Johnson
Sergeant Bluff***Woodbury
Sevastopal***Polk
Sevastopol***Polk
Seventy-eight***Johnson
Seventy-seven***Johnson
Seventy-six Center***Washington
Sewal***Wayne
Sexton***Kossuth
Seymour***Wayne
Shabbona***O'Brien
Shady Brook***Linn
Shady Grove***Buchanan
Shady Oak***Webster
Shaffton***Clinton
Shambaugh***Page
Shanghai***Keokuk
Shannon City***Ringgold
Shannon City***Union
Sharon*** Appanoose
Sharon***Warren
Sharon Center***Johnson
Sharps***Taylor
Sharpsburg***Mills
Sharpsburg***Taylor
Sharpston***Appanoose
Shawondassa***Dubuque
Shawville***Appanoose
Sheffield***Dubuque
Sheffield***Franklin
Sheffield***Story
Shelby***Pottawattamie
Shelby***Shelby
Shelby's***Clarke
Shelbyville***Shelby
Sheldahl***Boone
Sheldahl***Polk
Sheldahl***Story
Sheldon***O'Brien
Shell Rock***Butler
Shell Rock***Woodbury
Shell Rock Falls***Cerro Gordo
Shellsburg***Benton
Shellrock***Butler
Shellrock Station***Butler
Shenandoah***Fremont
Shenandoah***Page
Shepard***Union
Sheridan***Poweshiek
Sheridan***Sioux
Sheridan***Van Buren
Sheridan Center***Poweshiek
Sherlock***Palo alto
Sherman***Hardin
Sherman***Poweshiek
Sherman Center***Montgomery
Sherrill***Dubuque
Sherwood***Calhoun
Shiloh***Cedar
Shinn***Adams
Shipley***Story
Shirley***Pocahontas
Shobe's Grove***Franklin
Shockley***Henry
Shock's Station***Wapello
Shoo Fly***Johnson
Shopton***Lee
Short Line Junction***Polk
Showman***Keokuk
Showman Station***Keokuk
Shueyville***Johnson
Siam***Taylor
Sibley (C.S.)***Osceola
Sickles***Wapello
Side Hill***Cedar
Siding "A"***Floyd
Sidney (C.S.)***Fremont
Sigel***Clayton
Sigourney (C.S.)***Keokuk
Silsbee***Jackson
Silver City***Mills
Silver Creek***Delaware
Silver Creek***Ida
Silver Creek***Pottawattamie
Silver Lake***Worth
Silver Street***Ringgold
Simpson***Adams
Sinclair***Butler
Sioux Center***Sioux
Sioux City (C.S.)***Woodbury
Sioux Rapids***Buena Vista
Sisley's Grove***Linn
Six Mile***Clinton
Slabtown***Webster
Slagle***Keokuk
Slater***Story
Slifer***Webster
Sloan***Woodbury
Smayville***Story
Smead***Lyon
Smith Lake***Cass
Smith Siding***Monona
Smithfield***Allamakee
Smithfield***Story
Smithland***Woodbury
Smiths***Decatur
Smiths***Jackson
Smith's Ferry***Jackson
Smith's Point***Boone
Smithsfield***Monroe
Smithstown***Clinton
Smithtown***Woodbury
Smyrna***Clarke
Snapp***Pottawattamie
Snets***Clayton
Snodgrass Switch***Davis
Snow Hill***Page
Sny Magill***Clayton
Snyder***Dallas
Snyder Grove***Woodbury
Soap Creek***Davis
Soap Creek Mills***Davis
Soaptown***Iowa
Soda Bar***Palo alto
Solberg***Wright
Soldier***Monona
Soldier Valley***Harrison
Solon***Johnson
Somber***Worth
Somers***Calhoun
Somida***Shelby
Sonora***Poweshiek
South Amana***Iowa
South Amana Station***Iowa
South Augusta***Lee
South Bentonsport***Van Buren
South Des Moines***Polk
South English***Keokuk
South Flint***Des Moines
South Fork***Wayne
South Franklin***Lee
South Garyowen***Jackson
South Independence***Decatur
South Ioka***Keokuk
South Junction***Dubuque
South Keosauqua***Van Buren
South Liberty***Johnson
South O'Brien***O'Brien
South Ottumwa***Wapello
South River Siding***Warren
Southport***Sac
Spaulding***Union
Spechts Ferry***Dubuque
Spencer (C.S.)***Clay
Spencer Grove***Benton
Spencer Junction***Clay
Spencerville***Jones
Sperry***Des Moines
Spillville***Winneshiek
Spinneyville***Scott
Spirit Lake (C.S.)***Dickinson
Spragueville***Jackson
Spring Branch***Delaware
Spring Creek***Mahaska
Spring Creek***Tama
Spring Fountain***Bremer
Spring Grove***Des Moines
Spring Grove***Linn
Spring Hill***Warren
Spring Lake***Bremer
Spring Rock***Clinton
Spring Run***Louisa
Spring Valley***Decatur
Spring Valley***Monona
Springbrook***Jackson
Springdale***Cedar
Springfield***Clayton
Springfield***Jackson
Springfield***Keokuk
Springfield***Muscatine
Springfield***Polk
Springvale***Humboldt
Springville***Clayton
Springville***Davis
Springville***Linn
Springwater***Winneshiek
Spruce Mills***Jackson
Squeedunk***Keokuk
Squires Mills***Dubuque
Stacyville***Mitchell
Staketown***Palo alto
Stal***Jackson
Stanford***Marshall
Stanhope***Hamilton
Stanley***Buchanan
Stanton***Montgomery
Stanwood***Cedar
Stapleton***Chickasaw
Star***Marion
Stark***Mahaska
State Center***Marshall
State Line***Taylor
Station***Boone
Station***Cerro Gordo
Steady Run***Keokuk
Steamboat Rock***Hardin
Steen***Winnebago
Stelapolis***Iowa
Stella***Allamakee
Stella***Black Hawk
Stennett***Montgomery
Stergis***Howard
Sterling***Jackson
Sterling***Louisa
Stilesville***Davis
Stiles***Davis
Stillwater***Mitchell
Stillwell***Poweshiek
Stilson***Hancock
Stock Yards***Woodbury
Stockport***Van Buren
Stockton***Muscatine
Stone City***Jones
Stone Quarry***Madison
Stonega***Hamilton
Stoneridge***Mahaska
Stony Hollow***Des Moines
Storm Lake (C.S.)***Buena Vista
Story City***Story
Story***Story
Stout***Grundy
Strahan***Mills
Strand***Adams
Stratford***Hamilton
Stratford***Webster
Strawberry Hill***Jones
Strawberry Hill***Muscatine
Strawberry Point***Clayton
Streepyville***Appanoose
String Prairie***Lee
Stringtown***Adams
Stringtown***Davis
Stringtown***Henry
Stringtown***Keokuk
Struble***Plymouth
Stuart***Adair
Stuart***Guthrie
Stueben***Davis
Stumptown***Van Buren
Sturges Falls***Black Hawk
Sturges Rapids***Black Hawk
Sudbury***Muscatine
Suffolk***Clinton
Sugar Creek***Cedar
Sugar Creek***Jasper
Sugar Creek***Lee
Sugar Creek Mills***Cedar
Sugar Grove***Poweshiek
Sullivan***Jackson
Sully***Jasper
Sulphur Springs***Buena Vista
Summer Hill***Jackson
Summers***Benton
Summerset***Adair
Summerset***Warren
Summerset Junction***Warren
Summit***Clay
Summit***Guthrie
Summit***Muscatine
Summit***Story
Summit***Van Buren
Summitville***Lee
Sumner***Bremer
Sumner (P.O.)***Bremer
Sumner***Humboldt
Sunbury***Cedar
Sunnyside***Buchanan
Sunnyside***Hardin
Sunnyside***Keokuk
Sunset***Story
Superior***Dickinson
Surry***Greene
Sutherland***O'Brien
Sutton***Warren
Swaledale***Cerro Gordo
Swan***Marion
Swan Lake***Emmet
Swan Lake***Pocahontas
Swanton***Butler
Swanwood***Polk
Swea (P.O.)***Kossuth
Swea City***Kossuth
Swede Point***Boone
Swedesburg***Henry
Sweetland***Muscatine
Swisher***Johnson
Sylvan***Clayton
Sylvia***Linn
Syracuse***Bremer
Cedar Forks
Coon Valley
Elk Run
Fletcher
Grant City
Herring
Leota
Mc Cloy
Mercer
Mount Hope
New Albany
New Munich
Oliver
Pettis
Philo
Sacton
Schoharie
Southport
Wheeler's Ranch
Allen's Grove
Amity
Balluff
Barrwood
Berlin
Big Rock
Black Hawk
Cadda
Carlson
Churchville
Clark's Ferry
Cottage Grove
Dale
Durant
East Davenport
Eldridge Junction
Elizabeth City
Farming Grove
Farnam
Gilbert
Gilberttown
Glendale
Green Tree
Green Tree Tavern
Hetzel
Hickory Grove
Husam
Iowana
James
Kerr
LeClair Centre
Linn Grove
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Martins
Middletown
Nahant
New Buffalo
New Hamburg
Noel
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Parkhurst
Pinacle Point
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Price
Rockingham
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Spinneyville
Tile Works
Turnout
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Wapsie
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Elkhorn (P.O.)
Hansen Heights
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Athol
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Haakinson Spur
Harper's
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Pattersonville
Ricker
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Sheridan
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Camden
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College Farm
Collegeton
Collins Centre
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Defiance
Fairview
Goshen
Johnson's Grove
Nevada Station
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Palestine
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Prairie City
Sheffield
Shipley
Smayville
Smithfield
Story
Summit
Sunset
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Zumwalt