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Name (& Source) County Notes/aka/twp
Abbot(t)2 Pope .
Abingdon1, 2, Abington4 Knox 1921 HEI
Abingdon4 Lake a post-village of Lake Co. IL, 4 miles SW of Waukegan and 243 N by E of Springfield
Adair1 McDonough .
Adams1, 2 Adams .
Adams1, 2 Livingston historical
Adams Corner2 Wabash .
Addieville1, 2 Washington .
Addison1, 2 DuPage aka Dunkley's Grove
Adeline1, 2 Ogle .
Aden2 Hamilton .
Adenmoor2 Clark .
Adrian1, 2 Hancock .
Advance1, 2 Jasper .
Aetna/Etna1, 2 Coles .
AetnaU Logan .
Afolkey1, 2 Stephenson aka Fountain Creek
Afton Center2 DeKalb .
Agnew2 Whiteside aka Rock Island Junction
Ahern2 Kankakee .
Aiken1, 2 Jo Daviess .
Aiken's Grove5 Ogle .
Akin1, 2 Franklin .
Akin Junction2 Franklin .
Akron1, 2 Peoria PO closed 1904
Alabama Settlement5 Union .
Aladdin1, 2 Pike .
Alandale2 Madison .
AlbanyU Logan .
Albany1, 2 Whiteside aka Port Newbury
Albers2 Clinton .
Albion1, 2, 3 Edwards aka Edwards Courthouse, English Settlement, New Albion; 1823 Gazetteer
Alda2 Washington .
Alden1, 2 McHenry aka Wedgewood
Aldenmoor1, 2 Clark .
Aldridge1, 2 Union PO closed 1909
Aledo/Aldeo1, 2 Mercer aka DeSoto
Alexander1 Kane .
Alexander1, 2 Morgan .
Alexis1, 2 Mercer/Warren aka Alexandria 1872
Alexis Junction2 Mercer .
Algonquin1, 2 McHenry aka Cornishville; Cornish's Ferry; Dennys Ferry; Osceola
Alhambra1, 2 Madison aka Lowryville
Aliceville2 Henry .
Allen2 Mason .
Allen's Corner2 Kane .
Allen's Prairie5 Greene .
Allen's Springs1, 2 Pope PO closed 1928
Allendale1, 2 Wabash aka Armstrong; Timber Settlement; Timberville
AllentonU Christian PO closed 1839
AllentownU Christian Taylorville Twp
Allentown1, 2 Tazewell PO closed 1931
AllenvilleU Logan aka Laenna; Chestnut 1873
Allenville1, 2 Moultrie aka Farlow; Nelson; Nelson Station; Old Nelson
Allerton/Allerton Park1 Piatt .
Allerton1, 2 Vermilion/Champaign aka Broadlands
Allison('s Prairie5)1 Lawrence aka Christian Settlement
Allright2 Clark .
Alma1, 2 Marion aka Grand Mound City; Rantoul
Almora1, 2 Kane aka Spring Valley; Padell; PO closed 1910
Alonzo2 Iroquois .
Alorton2 St. Clair aka Alcoa; Fireworks
Alpha1, 2 Henry .
Alpine1, 2 Cook PO closed 1894
Alsey1, 2 Scott aka Smithfield
Alsip2 Cook .
Alta1, 2 Peoria aka Medina
Altamont1, 2 Effingham .
Altamont2 Madison .
Altenheim1 Cook aka Grover; part of Oak Park
AlticU Logan .
Altmar2 La Salle .
Alto/Alto Pass2 Union aka Quetil
Alton1, 2, 3 Madison aka Lower Alton; Salu; Upper Alton
Alton Junction1 Madison aka E. Alton
Alton Summit1 Madison .
Altona/Altoona1 Knox .
Altorf2 Kankakee PO closed 1887
Alvan/Alvin1, 2 Vermilion aka Gilbert; named for Alvan Gilbert
Alworth2 Winnebago PO closed 1899
Amboy1, 2 Lee aka Ompoge; Binghampton; E. Dixon
Amenia2 Piatt aka Allerton Station
Ament Corners2 Kendall .
America1, 2, 3 Pulaski (was in Alexander Co.) 1823 Gazetteer; PO closed 1931
Ames1, 2 Monroe PO closed 1907
Amity1, 2 Richland PO closed 1907
Anchor1, 2 McLean .
Ancona1, 2 Livingston .
Andalusia1, 2 Rock Island aka Clark's Ferry; Pleasant Ridge; Rockport
Anderson6 Adams .
Anderson1, 2 Cass PO closed 1899
Anderson1, 2 Macoupin .
Andover1, 2 Henry .
Andres2 Will .
Andrew2 Sangamon .
Anna1, 2 Union aka Jonesboro Station
Annapolis1, 2 Crawford .
Annawan1, 2 Henry .
Anoka3 Grundy aka Minooka
Antioch1, 2 Lake .
Antonius1 Adams PO closed 1902
Appalokia/Appalonia2 Morgan historical
Appaloosa West2 Kane .
Appanoose/Appanooce2 Hancock aka Niota
Apple Creek Prairie5 Greene .
Apple River/Apple River Fort1, 2 Jo Daviess aka Apple Creek; Bean's Mound; Elizabeth
Applegate2 Lawrence .
Appleton1, 2 Knox PO closed 1931
Aptakisic1, 2 Lake aka Frillman's Park; PO closed 1904
Arcadia1, 2 Morgan aka New Lexington; PO closed 1901
Archer2 Sangamon .
Archie1, 2 Vermilion PO closed 1896
Archie's MillU Christian .
Arcola1, 2 Coles then Douglas aka Okaw
Arden1 Pike .
Arenzville1, 2, 6 Cass aka Arrenzville
Argenta1, 2 Macon aka Newburgh
Argo1, 2, 6 Carroll aka Argo Fay; Fay; Fay Station
Argyle1, 2 Boone/Winnebago aka Kintyre; Scotch Grove; PO closed 1931
Arlington1, 2 Bureau aka Lost Grove
Arlington Heights1, 2 Cook aka Dunton
Arlington Heights1, 2 Sangamon .
Arm of the Grand Prairie5 Jefferson .
Armenia6 Carroll post office
Armington1, 2 Tazewell aka Hittle's Grove
Armsby2 McHenry historical
Armstrong1, 2 Vermilion .
Armstrong5 Wabash post office
Arnold2 Carroll .
Arnold1, 2 Morgan PO closed 1931
Aroma/Aroma Park1, 2 Will/Kankakee aka Waldron 1872
Arpee2 Mercer PO closed 1903
Arrington2 Wayne aka Sims
Arrowsmith1, 2 McLean aka Senex
Arrowsmith's Settlement5 Mercer .
Arthur1, 2 Douglas/Moultrie .
Ash Grove1 Iroquois aka Glenwood; Pitchin; PO closed 1901
Ashdale/Ashdale Junction2 Carroll .
Ashkum1, 2 Iroquois .
Ashland1, 2, 6 Cass .
Ashley1, 2 Washington .
Ashmore('s Settlement5)1, 2 Coles .
Ashton5 Adams .
Ashton1, 2 Lee aka Ogle Station
Ashville1 Schuyler PO closed 1894
Assumption1, 2, 6 Christian Assumption Twp
Astoria1, 2 Fulton aka Washington
Athens1, 2 Greene aka Athensville
Athens1, 2 Sangamon then Menard aka Rogers
Athens3 St. Clair aka Hill's Ferry
Atherton's Settlement5 Alexander .
Atkinson1, 2 Henry aka Cedar Hill
Atlanta/Atalanta1, 2 Logan aka New Castle; Xenia; Zenia
Atlas1, 2, 5 Pike aka Ross Settlement, Rockport; PO closed 1911
AtteberryU Logan .
Atterberry1, 2 Menard aka Atterbury; Atterbury Station
Attila1, 2 Williamson aka Poor Do; PO closed 1902
Atwater1, 2 Macoupin .
Atwood1, 2 Douglas/Piatt .
Auburn1 Clark aka Clark Center
Auburn1, 2 Sangamon aka Sugar Creek
Augerville2 Champaign .
Augsburg2 Fayette PO closed 1904
Augusta1, 2 Hancock aka Oliver's Settlement
Augusta5 Pike .
Aurora3 Clark 1823 Gazetteer
Aurora2 DuPage .
Aurora1, 2 Kane .
Aurora2 Kendall .
Aurora2 Will .
Aux Sable2 Grundy .
Austin2 Cook aka Austinville, Sand Ridge, Sandy Ridge; PO closed 1900
Aux Sable Township13 Grundy .
Ava1, 2 Jackson aka Headquarters
Avena1, 2 Fayette PO closed 1931
Avery1 Jo Daviess PO closed 1904
Avery Hill2 St. Clair .
Averyville2 Peoria .
Aviston1, 2 Clinton aka Aviston Station; Hecker; Hull
Avoca2 Livingston aka McDowell; historical; PO closed 1861
Avon1, 2 Fulton aka Woodstock; Woodsville
Avondale1, 2 Cook historical, PO closed 1894
Ayers2 Bond historical, PO closed 1902
Ayers1 Champaign aka Broadlands 1888
Ayers/Ayres Junction1 Carroll aka Ayres Siding

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