Official Census inventory · IL
Illinois government directory.
6,972 public-entity records, with Census classifications, functions, contact fields, population or enrollment where published, and explicit functioning or dormant status.
6,963functioning
2,821general-purpose governments
3,219special district governments
890independent school districts
0dependent school systems
42public pension systems
Census public-use file
6,972 records
Special district governmentFunctioning
Oregon Park District
PARKS AND RECREATION
- County area
- Ogle
- Contact
- PO BOX 237 · OREGON, IL · 61061-0237
- Census ID
- 103474
Special district governmentFunctioning
Oregon Public Library District
LIBRARIES
- County area
- Ogle
- Contact
- 300 JEFFERSON ST · OREGON, IL · 61061-1616
- Census ID
- 146559
Special district governmentFunctioning
Orion Cemetery District
CEMETERIES
- County area
- Fulton
- Contact
- 26037 N SHANLEE RD · CANTON, IL · 61520-8790
- Census ID
- 125577
Special district governmentFunctioning
Orion Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Henry
- Contact
- 501 11TH AVE · ORION, IL · 61273-7773
- Census ID
- 206350
Special district governmentFunctioning
Orion Sanitary District
SEWERAGE AND WATER SUPPLY
- County area
- Henry
- Contact
- 804 12TH ST · ORION, IL · 61273-9750
- Census ID
- 125607
Special district governmentFunctioning
Orland Hills Public Library District
LIBRARIES
- County area
- Cook
- Contact
- 16033 94TH AVE · ORLAND HILLS, IL · 60487-4623
- Census ID
- 125477
Special district governmentFunctioning
Orland Park Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Cook
- Contact
- 9790 W 151ST ST · ORLAND PARK, IL · 60462-3108
- Census ID
- 204346
Special district governmentFunctioning
Orland Park Metro Exposition Auditorium and Office Building Auth
PARKS AND RECREATION
- County area
- Cook
- Contact
- 14750 S RAVINIA AVE · ORLAND PARK, IL · 60462-3134
- Census ID
- 215019
Special district governmentFunctioning
Osco Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Henry
- Contact
- 9740 E 400TH ST · LYNN CENTER, IL · 61262-9534
- Census ID
- 103320
Special district governmentFunctioning
Oswego Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Kendall
- Contact
- 3511 WOOLEY RD · OSWEGO, IL · 60543-9553
- Census ID
- 146176
Special district governmentFunctioning
Oswego Public Library District
LIBRARIES
- County area
- Kendall
- Contact
- 32 W JEFFERSON ST · OSWEGO, IL · 60543-9078
- Census ID
- 125659
Special district governmentFunctioning
Oswegoland Park District
PARKS AND RECREATION
- County area
- Kendall
- Contact
- 313 E WASHINGTON ST · OSWEGO, IL · 60543-8021
- Census ID
- 125658
Special district governmentFunctioning
Ottawa Port District
SEA AND INLAND PORT FACILITIES
- County area
- Lasalle
- Contact
- 2180 N 1350 ST · OTTAWA, IL · 61350
- Census ID
- 245517
Special district governmentFunctioning
Otter Creek Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Jersey
- Contact
- 16434 LIBERTY RIDGE RD · GRAFTON, IL · 62037-2073
- Census ID
- 146108
Special district governmentFunctioning
Otter Creek Lake Water Service District
SEWERAGE AND WATER SUPPLY
- County area
- Stephenson
- Contact
- 1202 LAKE SUMMERSET RD · DAVIS, IL · 61019-9560
- Census ID
- 125852
Special district governmentFunctioning
Otter Lake Water Commission
OTHER MULTI-FUNCTION DISTRICTS
- County area
- Macoupin
- Contact
- PO BOX 468 · VIRDEN, IL · 62690-0468
- Census ID
- 225500
Special district governmentFunctioning
Otto Township Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Kankakee
- Contact
- PO BOX 456 · CHEBANSE, IL · 60922-0456
- Census ID
- 146157
Special district governmentFunctioning
Owaneco Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Christian
- Contact
- 1877 E 700 NORTH RD · PANA, IL · 62557-6867
- Census ID
- 145522
Special district governmentFunctioning
Owego Drainage District
DRAINAGE
- County area
- Livingston
- Contact
- 17800 N 2100 EAST RD · PONTIAC, IL · 61764-3515
- Census ID
- 185167
Special district governmentFunctioning
Owl Creek Drainage District
DRAINAGE
- County area
- Champaign
- Contact
- 2977 CR 400 E · FISHER, IL · 61843
- Census ID
- 145486
Special district governmentFunctioning
Oxford Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Henry
- Contact
- 204 N YATES ST · ALPHA, IL · 61413-9794
- Census ID
- 125604
Special district governmentFunctioning
Pace Suburban Bus Division of the Regional Transportation Auth
PUBLIC MASS TRANSIT UTILITY
- County area
- Cook
- Contact
- 550 W ALGONQUIN RD · ARLINGTON HEIGHTS, IL · 60005-4412
- Census ID
- 145693
Special district governmentFunctioning
Palatine Park District
PARKS AND RECREATION
- County area
- Cook
- Contact
- 250 E WOOD ST · PALATINE, IL · 60067-5358
- Census ID
- 206305
Special district governmentFunctioning
Palatine Public Library District
LIBRARIES
- County area
- Cook
- Contact
- 700 N NORTH CT · PALATINE, IL · 60067-8159
- Census ID
- 201653
Special district governmentFunctioning
Palatine Rural Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Cook
- Contact
- 35 ELA RD · INVERNESS, IL · 60067-4450
- Census ID
- 204338
Special district governmentFunctioning
Palestine Public Library District
LIBRARIES
- County area
- Crawford
- Contact
- 201 S WASHINGTON ST · PALESTINE, IL · 62451-1060
- Census ID
- 204348
Special district governmentFunctioning
Palmyra-Modesto Water Commission
WATER SUPPLY UTILITY
- County area
- Macoupin
- Contact
- PO BOX 104 · MODESTO, IL · 62667-0104
- Census ID
- 146415
Special district governmentFunctioning
Palos Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Cook
- Contact
- 8815 W 123RD ST · PALOS PARK, IL · 60464-1785
- Census ID
- 206306
Special district governmentFunctioning
Palos Heights Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Cook
- Contact
- 12300 S HARLEM AVE · PALOS HEIGHTS, IL · 60463-1425
- Census ID
- 125490
Special district governmentFunctioning
Pana Community Fire Protection District
LOCAL FIRE PROTECTION
- County area
- Christian
- Contact
- 400 1ST ST · PANA, IL · 62557-1412
- Census ID
- 219510
Source: U.S. Census Bureau, 2025 Government Units Listing. A listed entity is not proof that its board is elected or that the contact field identifies an officeholder.