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Cook County (IL) Law Enforcement IDs

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Cook County Sheriff's Office


Cook County Forest Preserve Police Department

Alsip Police Department

  • 700s:

Arlington Heights Police Department

  • 1000s:

Barrington Police Department

  • 7500s:

Barrington Hills Police Department

  • 7500s:

Barrington-Inverness Police Department

Bartlett Police Department

  • Bravo Units:
    • B1 - Beat Car
    • B2 - Beat Car
    • B3 - Beat Car
    • B4 - Beat Car
    • B5 - Beat Car
    • B19 - Desk
    • B20 - Citywide Car
    • B33 - Supervisor
    • B35 - Supervisor
    • B42 - Traffic or CSO
    • B44 - Traffic or CSO
    • B70 - Chief

Bedford Park Police Department

  • 100s:

Bellwood Police Department

  • 300s:

Bensenville Police Department

See DuPage County

Berkeley Police Department

  • 600s:

Berwyn Police Department

  • 100s:
    • 109 - Squad Car
    • 110 - Supervisor
    • 111 - Squad Car
    • 112 - Squad Car
    • 113 - Squad Car
    • 116 - Squad Car
    • 119 - Patty Wagon
    • 123 - Evidence Technician Unit
    • 124 - Squad Car
    • 126 - Squad Car
    • 127 - Squad Car
    • 131 - Squad Car
    • 183 - K9 Unit
    • 185 - K9 Unit

Blue Island Police Department

  • 1900s:

Bridgeview Police Department

  • 200s:

Broadview Police Department

  • 200s:

Brookfield Police Department

  • 400s:

Buffalo Grove Police Department

  • 4000s:

Burbank Police Department

  • 800s:

Burnham Police Department

  • 80 series numbers

Calumet City Police Department

  • ADAM - Administrative units
  • SAM - Supervisory (Sergeants & Lieutenants)
  • PAUL - Patrol units
  • TOM - Traffic units
  • CHARLIE - Bicycle patrols
  • MARY - Motorcycle units
  • IDA - Investigators
  • FRANK - Probationary officers
  • KING - K-9 units
  • TAC - Tactical officers

Above prefixes are followed by 2 or 3 digit star number. currently up to the low 200s. Star numbers are not reused at this time.

  • 300s - Fire Department and Inspectional Services Identifiers
  • 400s - Health Department Identifiers
  • 500s - Support Personnel (Animal Control and PD mechanics)
  • 800s - Police Reserve Officers
  • 900s - Calumet Memorial Park Rangers
  • 2300s - Calumet City ESDA which is used in a CSO capacity

Calumet Park Police Department

  • 700s:

Chicago Police Department

  • CARMA - CPD Unit Identifiers
  • Traffic Management Authority (TMA):
    • TMA 2
    • TMA 5
    • TMA 6
    • TMA 7
    • TMA 8
    • TMA 10
    • TMA 13
    • TMA 14
    • TMA 15
    • TMA 20
    • TMA 21
    • TMA 24
    • TMA 25
    • TMA 29
    • TMA 32
    • TMA 43
    • TMA 45
    • TMA 48
    • TMA 49
    • TMA 50
    • TMA 52
    • TMA 65
    • TMA 71
    • TMA 73
    • TMA 75
    • TMA 77
    • TMA 78
    • TMA 84
    • TMA 86
    • TMA 88
    • TMA 90
    • TMA 201
    • TMA 205
    • TMA 207
    • TMA 210A
    • TMA 210B
    • TMA 215
    • TMA 217
    • TMA 218
    • TMA 219
    • TMA 220
    • TMA 229
    • TMA 230
    • TMA 233
    • TMA 236
    • TMA 241
    • TMA 252
    • TMA 261
    • TMA 262
    • TMA 283
    • TMA 287
    • TMA 299
    • TMA 563
    • TMA 762
    • TMA 798
    • TMA 969
    • TMA 989
    • TMA 991
    • TMA 992
    • TMA 992A
    • TMA 993A
    • TMA 1103
    • TMA 1117
    • TMA 1119
    • TMA 1120
    • TMA 1122
    • TMA 1217
    • TMA 1335
    • TMA 1342
    • TMA 1410B
    • TMA 1412
    • TMA 1420
    • TMA 1427
    • TMA 1434A
    • TMA 1514
    • TMA 1520
    • TMA 1537
    • TMA 1541
    • TMA 1542
    • TMA 4622

Chicago Heights Police Department

  • Mary Units:

Chicago Ridge Police Department

1400's

Cicero Police Department

  • 200s (Patrol Units):
    • 200 - Squad Car
    • 203 - Squad Car
    • 204 - Squad Car
    • 205 - Squad Car
    • 206 - Squad Car
    • 211 - Squad Car
    • 212 - Squad Car
    • 223 - Squad Car
    • 227 - Squad Car
    • 228 - Prisoner Transport Van
    • 237 - K9 Unit
    • 239 - K9 Unit
    • 252 - Squad Car
    • 273 - Squad Car

Clarendon Hills Police Department

See DuPage County

Country Club Hills Police Department

  • 800s:

Countryside Police Department

  • 900s:

Crestwood Police Department

  • 600s:

Deer Park Police Department

Des Plaines Police Department

Dixmoor Police Department

  • 3000s:

Dolton Police Department

  • 80s:

East Hazelcrest Police Department

  • 500s:

Elk Grove Police Department

  • 2000s:

Elmwood Park Police Department

  • 300s:

Evanston Police Department

Evergreen Park Police Department

  • 2900s:

Flossmoor Police Department

  • 700s:

Ford Heights Police Department

Forest Park Police Department

  • 600s:

Forest View Police Department

  • 130s:

Franklin Park Police Department

  • 8000s:

Glencoe Police Department

  • 650 to 699s:

Glenview Police Department

  • 9000s - Supervisors:
  • 9100s - Patrol Units:

Glenwood Police Department

  • 300s:

Golf Police Department

Hanover Park Police Department

  • Yankee Units:
    • Y1 - Beat Car
    • Y2 - Beat Car
    • Y3 - Beat Car
    • Y4 - Beat Car
    • Y5 - Beat Car
    • Y6 - Beat Car
    • Y19 - Desk
    • Y22 - Cover Car (?)
    • Y23 - Cover Car (?)
    • Y27 - Cover Car
    • Y31 - Supervisor
    • Y70 - Chief
    • Y61 - Special Unit
    • Y83 - Special Unit

Harvey Police Department

  • 40s:

Harwood Heights Police Department

  • 400s:

Hazel Crest Police Department

  • 600s:

Hickory Hills Police Department

  • 400s:

Hillside Police Department

  • 400s:
    • 405 - Patrol Car

Hodgkins Police Department

Hoffman Estates Police Department

  • 6100s:
    • 6110
    • 6118
    • 6119
    • 6131
    • 6132
    • 6133
    • 6134
    • 6137
    • 6139
  • 6600s:
    • 6600

Hometown Police Department

  • 450 to 469:

Homewood Police Department

  • 400s:

Indian Head Park Police Department

  • 4100s:

Justice Police Department

  • 500s:

Kenilworth Police Department

  • 600 to 649s:

LaGrange Police Department

  • 500s:
    • 510 - Parking Enforcement Vehicle
    • 520 - Patrol Car
    • 521 - Patrol Car
    • 522 - Patrol Car
    • 523 - Patrol Car
    • 524 - Patrol Car

LaGrange Park Police Department

  • 200s:
    • 220 - Patrol Vehicle
    • 225 - Squad Car

Lansing Police Department

  • 200s:

Lemont Police Department

  • 3800s:

Lincolnwood Police Department

  • 200 to 249s:

Lynwood Police Department

  • 100s:
    • 174

Lyons Police Department

  • 800s:

Markham Police Department

  • 30s:

Matteson Police Department

  • 2100s:

Maywood Police Department

  • 100s:
    • 114 - Squad Car
    • 120 - K9 Unit
    • 123 - Squad Car
    • 129 - Squad Car
    • 149 - Evidence Technician Unit

McCook Police Department

  • 800s:

Melrose Park Police Department

  • 1100s:
    • 1104 - Squad Car
    • 1116 - Squad Car

Merrionette Park Police Department

  • 240 to 260:

Midlothian Police Department

  • 100s:

Morton Grove Police Department

  • 776 to 899s:

Mt. Prospect Police Department

  • 3000s:

Niles Police Department

  • 100s - Patrol Units:
    • 104 - CSO
    • 105 - CSO
    • 108 - Animal Services Officer
    • 110 - Watch Commander
    • 111 - Shift Sgt Primary
    • 112 - Shift Sgt Secondary
    • 400s - Auxillary Officers assigned for Park Patrol and Golf Mill Mall:

Norridge Police Department

  • 500s:

North Riverside Police Department

  • 600s:
    • 610 - Squad Car
    • 612 - Supervisor
    • 613 - Squad Car
    • 614 - Prisoner Transport Van
    • 616 - Squad Car
    • 617 - Squad Car
    • 619 - Squad Car
    • 624 - Community Service Unit

Northbrook Police Department

  • 000-099s:
    • 21
    • 23
    • 44
    • 45

Northfield Police Department

  • 450 to 499:

Northlake Police Department

  • 900's:
    • 900 Chief
    • 901 Deputy Chief
    • 903 Adminstravtive Commander
    • 904 Investigations Commander
    • 905 Patrol Commander
    • 906 Sgt (Rotation Cycle)
    • 907 Sgt (Rotation Cycle)
    • 908 Sgt (Rotation Cycle)
    • 909 Sgt (Rotation Cycle)
    • 910 Sgt (Detectives)
    • 911 Sgt (Detectives)
    • 914 Patrol Officer
    • 915 Patrol Officer
    • 916 Patrol Officer
    • 917 Patrol Officer
    • 918 SFG / FTO / Officer
    • 919 SFG / Officer
    • 920 Patrol Officer
    • 922 Detective / Officer
    • 923 SRO / Officer
    • 925 Detective / Officer
    • 926 Detective / Officer
    • 928 Old SRO / Officer
    • 929 Patrol Officer
    • 930 SFG / Officer
    • 931 Patrol Officer (Probationary)
    • 932 SFG / Officer
    • 933 Patrol Officer
    • 934 Patrol Officer (Probationary)
    • 935 Patrol Officer (Probationary)
    • 936 Patrol Officer (Probationary)
    • 937 Patrol Officer
    • 938 Patrol Officer (Probationary)
    • 939 Patrol Officer (Probationary)
    • 940 Patrol Officer
    • 941 Patrol Officer
    • 942 Patrol Officer
    • 943 Patrol Officer
    • 945 Patrol Officer
    • 946 Detective / Officer
    • 947 Patrol Officer
    • 949 Patrol Officer
    • 951 SFG / Officer
    • 971 CSO / Police Authority
    • 972 CSO
    • 973 CSO / Police Authority
    • 974 CSO
    • 981 Communications Supervisor
    • 982 Communications Op
    • 983 Communications Op
    • 984 Communications OP
    • 986 Communications OP

Oak Forest Police Department

  • 2000s:

Oak Lawn Police Department

  • 300's PD
  • 800's CSO

Oak Park Police Department

  • 5000s / 5200s??

Olympia Fields Police Department

  • 4400s:

Orland Hills Police Department

  • 200s - Command Staff
  • 300s - Patrol Officers
  • 400s - Police Explorers
  • 900s - Patrol Cars
  • 2100s - Midnight Shift Units
  • 2200s - Day Shift Units
  • 2300s - Afternoon Shift Units
  • 2500s - Traffic Units
  • 2600s - Officer In Charge
  • 2700s - Sergeants
  • 2800s - Commanders
  • 2900s - Investigators

Orland Park Police Department

  • 100s - Command Staff
  • 500s - ESDA Officers
  • 600s - Support Staff
  • 700s - Patrol Officers
  • 800s - CSO's Off Duty
  • 1100s - Midnight Shift Units
  • 1200s - Day Shift Units
  • 1300s - Afternoon Shift Units
  • 1400s - Patrol Car Numbers
  • 1500s - Traffic Units
  • 1600s - Junior Sergeants
  • 1700s - Senior Sergeants
  • 1800s - Lieutenants
  • 1900s - Investigators

Palatine Police Department

  • 8000s:

Palos Heights Police Department

  • 1100s:

Palos Hills Police Department

  • 1300s:
  • 8300s: EMA

Palos Park Police Department

  • 1200s:

Park Forest Police Department

  • 800s:

Park Ridge Police Department

Phoenix Police Department

  • 10 to 19

Posen Police Department

  • 1700s:

Prospect Heights Police Department

  • 7000s:

Richton Park Police Department

  • Adam Units:
  • Lincoln Units:
  • Sam Units:

River Forest Police Department

  • 1000s:

River Grove Police Department

  • 600s:

Riverdale Police Department

  • 90s:

Riverside Police Department

  • 50 to 60

Robbins Police Department

  • 1800s:

Rolling Meadows Police Department

  • 1800s:
  • 2800s:
  • 3800s:

Roselle Police Department

  • Robert Units:
    • R1 - Beat Car
    • R2 - Beat Car
    • R3 - Beat Car
    • R4 - Beat Car
    • R20 - Cover Car (?)
    • R21 - Cover Car?
    • R30 - Supervisor
    • R90 - CSO
    • R70 - Chief

Rosemont Police Department

1400's Street Units

Sauk Village Police Department

  • Paul Units:

Schaumburg Police Department

  • 5000s:
  • 5100s:
    • 5101
    • 5102
    • 5102B
    • 5102C
    • 5103
    • 5104
    • 5105
    • 5106
    • 5107
    • 5108
    • 5108B
    • 5109
    • 5110
    • 5113
    • 5116
    • 5117
    • 5165
    • 5165C
    • 5190
    • 5191
    • 5192
    • 5193
  • 5400s:
    • 5434
  • 5500s:
    • 5535
  • 5600s:
    • 5600
  • 5700s:
    • 5742
  • 5800s:
    • 5842

Schiller Park Police Department

  • 700s:

Skokie Police Department

  • 250s to 399:
    • 310
    • 315
    • 320
    • 340
    • 373

South Barrington Police Department

Dispatched by QuadComm.

  • Bravo Units:
    • B3
    • B4
    • B5
    • B6
    • B7
    • B8
    • B9
    • B11
    • B13
    • B14
    • B16
    • B17
    • B18
    • B19
    • B21
    • B25
    • B26
    • B27
    • B31
    • B34

South Chicago Heights Police Department

South Holland Police Department

  • 3001 to 3250:
  • 3180 ESDA
  • 80 to 89 ESDA Cars

Steger Police Department

Stickney Police Department

  • 140s:
    • 140 - Squad Car
    • 141 - Squad Car
    • 142 - Squad Car
    • 143 - Squad Car
    • 144 - Squad Car
    • 149 - Squad Car (Unmarked)

Stone Park Police Department

  • 1200's
    • 1200 Chief
    • 1201 Patrol Commander
    • 1202 Watch Sgt

Streamwood Police Department

  • 9100s:
    • 9101
    • 9102
    • 9103
    • 9104
    • 9112
    • 9113
    • 9138
    • 9165
    • 9190
    • 9194
    • 9195
  • 9200s:
    • 9211
    • 9212
    • 9214
  • 9300s:
    • 9342
    • 9357
  • 9400s:
    • 9468
  • 9800s:
    • 9824

Summit Police Department

  • 600s:

Thornton Police Department

  • 300s:
  • 2100s: EMA
  • 2160 - 2162 EMA cars

Tinley Park Police Department

  • Adam Units:
  • Boy Units:

University Park Police Department

Westchester Police Department

  • 500-554:

Western Springs Police Department

  • 300s:

Wheeling Police Department

Willow Springs Police Department

  • 300s:
  • 700s:

Willowbrook Police Department

See DuPage County

Wilmette Police Department

  • 500s:

Winnetka Police Department

  • 400s:

Worth Police Department

  • 1600s:
  • 1641-1649: CSOs



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