Rhestr o Siroedd Illinois

Dyma restr o'r 102 rhanbarth gweinyddol sy'n cael eu hadnabod wrth yr enw County yn Nhalaith Illinois yn yr Unol Daleithiau, yn nhrefn yr wyddor

 Adams 
 Alexander
 Bond
 Boone
 Brown
 Bureau
 Calhoun
 Carroll 
 Cass
 Champaign
 Christian
 Clark
 Clay 
 Clinton
 Coles
 Cook
 Crawford
 Cumberland
 DeKalb
 DeWitt
 Douglas
 DuPage 
 Edgar
 Edwards
 Effingham
 Fayette
 Ford
 Franklin
 Fulton
 Gallatin
 Greene
 Grundy
 Hamilton
 Hancock
 Hardin
 Henderson
 Henry
 Iroquois
 Jackson
 Jasper
 Jefferson 
 Jersey
 Jo Daviess 
 Johnson
 Kane
 Kankakee
 Kendall
 Knox
 LaSalle 
 Lake
 Lawrence
 Lee
 Livingston
 Logan 
 Macon
 Macoupin
 Madison
 Marion
 Marshall
 Mason
 Massac
 McDonough
 McHenry
 McLean
 Menard
 Mercer
 Monroe
 Montgomery
 Morgan
 Moultrie
 Ogle
 Peoria
 Perry
 Piatt
 Pike
 Pope
 Pulaski
 Putnam
 Randolph
 Richland
 Rock Island
 Saline
 Sangamon
 Schuyler
 Scott
 Shelby
 St. Clair
 Stark
 Stephenson
 Tazewell
 Union
 Vermilion 
 Wabash
 Warren
 Washington
 Wayne
 White
 Whiteside
 Will
 Williamson
 Winnebago
 Woodford


Illinois