IL · Official county inventory
Illinois County Accident Resource Directory
Browse 102 Illinois counties and equivalents with links to state accident resources and individually researched local guides.
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Browse every county or county equivalent in Illinois from the 2026 U.S. Census Bureau inventory. This includes Louisiana parishes where applicable. Directory entries route to statewide resources; only entries explicitly labeled as researched guides have a separate local records article.
Find Illinois accident and injury agencies for current statewide report, workplace and court resource routes.
- Adams CountyIllinois state resource hubCensus geographic identifier: 17001
- Alexander CountyIllinois state resource hubCensus geographic identifier: 17003
- Bond CountyIllinois state resource hubCensus geographic identifier: 17005
- Boone CountyIllinois state resource hubCensus geographic identifier: 17007
- Brown CountyIllinois state resource hubCensus geographic identifier: 17009
- Bureau CountyIllinois state resource hubCensus geographic identifier: 17011
- Calhoun CountyIllinois state resource hubCensus geographic identifier: 17013
- Carroll CountyIllinois state resource hubCensus geographic identifier: 17015
- Cass CountyIllinois state resource hubCensus geographic identifier: 17017
- Champaign CountyIllinois state resource hubCensus geographic identifier: 17019
- Christian CountyIllinois state resource hubCensus geographic identifier: 17021
- Clark CountyIllinois state resource hubCensus geographic identifier: 17023
- Clay CountyIllinois state resource hubCensus geographic identifier: 17025
- Clinton CountyIllinois state resource hubCensus geographic identifier: 17027
- Coles CountyIllinois state resource hubCensus geographic identifier: 17029
- Cook CountyIllinois state resource hubCensus geographic identifier: 17031
- Crawford CountyIllinois state resource hubCensus geographic identifier: 17033
- Cumberland CountyIllinois state resource hubCensus geographic identifier: 17035
- De Witt CountyIllinois state resource hubCensus geographic identifier: 17039
- DeKalb CountyIllinois state resource hubCensus geographic identifier: 17037
- Douglas CountyIllinois state resource hubCensus geographic identifier: 17041
- DuPage CountyIllinois state resource hubCensus geographic identifier: 17043
- Edgar CountyIllinois state resource hubCensus geographic identifier: 17045
- Edwards CountyIllinois state resource hubCensus geographic identifier: 17047
- Effingham CountyIllinois state resource hubCensus geographic identifier: 17049
- Fayette CountyIllinois state resource hubCensus geographic identifier: 17051
- Ford CountyIllinois state resource hubCensus geographic identifier: 17053
- Franklin CountyIllinois state resource hubCensus geographic identifier: 17055
- Fulton CountyIllinois state resource hubCensus geographic identifier: 17057
- Gallatin CountyIllinois state resource hubCensus geographic identifier: 17059
- Greene CountyIllinois state resource hubCensus geographic identifier: 17061
- Grundy CountyIllinois state resource hubCensus geographic identifier: 17063
- Hamilton CountyIllinois state resource hubCensus geographic identifier: 17065
- Hancock CountyIllinois state resource hubCensus geographic identifier: 17067
- Hardin CountyIllinois state resource hubCensus geographic identifier: 17069
- Henderson CountyIllinois state resource hubCensus geographic identifier: 17071
- Henry CountyIllinois state resource hubCensus geographic identifier: 17073
- Iroquois CountyIllinois state resource hubCensus geographic identifier: 17075
- Jackson CountyIllinois state resource hubCensus geographic identifier: 17077
- Jasper CountyIllinois state resource hubCensus geographic identifier: 17079
- Jefferson CountyIllinois state resource hubCensus geographic identifier: 17081
- Jersey CountyIllinois state resource hubCensus geographic identifier: 17083
- Jo Daviess CountyIllinois state resource hubCensus geographic identifier: 17085
- Johnson CountyIllinois state resource hubCensus geographic identifier: 17087
- Kane CountyIllinois state resource hubCensus geographic identifier: 17089
- Kankakee CountyIllinois state resource hubCensus geographic identifier: 17091
- Kendall CountyIllinois state resource hubCensus geographic identifier: 17093
- Knox CountyIllinois state resource hubCensus geographic identifier: 17095
- Lake CountyIllinois state resource hubCensus geographic identifier: 17097
- LaSalle CountyIllinois state resource hubCensus geographic identifier: 17099
- Lawrence CountyIllinois state resource hubCensus geographic identifier: 17101
- Lee CountyIllinois state resource hubCensus geographic identifier: 17103
- Livingston CountyIllinois state resource hubCensus geographic identifier: 17105
- Logan CountyIllinois state resource hubCensus geographic identifier: 17107
- Macon CountyIllinois state resource hubCensus geographic identifier: 17115
- Macoupin CountyIllinois state resource hubCensus geographic identifier: 17117
- Madison CountyIllinois state resource hubCensus geographic identifier: 17119
- Marion CountyIllinois state resource hubCensus geographic identifier: 17121
- Marshall CountyIllinois state resource hubCensus geographic identifier: 17123
- Mason CountyIllinois state resource hubCensus geographic identifier: 17125
- Massac CountyIllinois state resource hubCensus geographic identifier: 17127
- McDonough CountyIllinois state resource hubCensus geographic identifier: 17109
- McHenry CountyIllinois state resource hubCensus geographic identifier: 17111
- McLean CountyIllinois state resource hubCensus geographic identifier: 17113
- Menard CountyIllinois state resource hubCensus geographic identifier: 17129
- Mercer CountyIllinois state resource hubCensus geographic identifier: 17131
- Monroe CountyIllinois state resource hubCensus geographic identifier: 17133
- Montgomery CountyIllinois state resource hubCensus geographic identifier: 17135
- Morgan CountyIllinois state resource hubCensus geographic identifier: 17137
- Moultrie CountyIllinois state resource hubCensus geographic identifier: 17139
- Ogle CountyIllinois state resource hubCensus geographic identifier: 17141
- Peoria CountyIllinois state resource hubCensus geographic identifier: 17143
- Perry CountyIllinois state resource hubCensus geographic identifier: 17145
- Piatt CountyIllinois state resource hubCensus geographic identifier: 17147
- Pike CountyIllinois state resource hubCensus geographic identifier: 17149
- Pope CountyIllinois state resource hubCensus geographic identifier: 17151
- Pulaski CountyIllinois state resource hubCensus geographic identifier: 17153
- Putnam CountyIllinois state resource hubCensus geographic identifier: 17155
- Randolph CountyIllinois state resource hubCensus geographic identifier: 17157
- Richland CountyIllinois state resource hubCensus geographic identifier: 17159
- Rock Island CountyIllinois state resource hubCensus geographic identifier: 17161
- Saline CountyIllinois state resource hubCensus geographic identifier: 17165
- Sangamon CountyIllinois state resource hubCensus geographic identifier: 17167
- Schuyler CountyIllinois state resource hubCensus geographic identifier: 17169
- Scott CountyIllinois state resource hubCensus geographic identifier: 17171
- Shelby CountyIllinois state resource hubCensus geographic identifier: 17173
- St. Clair CountyIllinois state resource hubCensus geographic identifier: 17163
- Stark CountyIllinois state resource hubCensus geographic identifier: 17175
- Stephenson CountyIllinois state resource hubCensus geographic identifier: 17177
- Tazewell CountyIllinois state resource hubCensus geographic identifier: 17179
- Union CountyIllinois state resource hubCensus geographic identifier: 17181
- Vermilion CountyRead the researched county guideCensus geographic identifier: 17183
- Wabash CountyIllinois state resource hubCensus geographic identifier: 17185
- Warren CountyIllinois state resource hubCensus geographic identifier: 17187
- Washington CountyIllinois state resource hubCensus geographic identifier: 17189
- Wayne CountyIllinois state resource hubCensus geographic identifier: 17191
- White CountyIllinois state resource hubCensus geographic identifier: 17193
- Whiteside CountyIllinois state resource hubCensus geographic identifier: 17195
- Will CountyIllinois state resource hubCensus geographic identifier: 17197
- Williamson CountyIllinois state resource hubCensus geographic identifier: 17199
- Winnebago CountyIllinois state resource hubCensus geographic identifier: 17201
- Woodford CountyIllinois state resource hubCensus geographic identifier: 17203
Source: 2026 U.S. Census Gazetteer Files. Geographic inclusion is not evidence of a local office, partner availability, keyword demand or a search ranking.