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Layers
Territory
- GEOID
- 1715599
- OCD-ID
- ocd-division/country:us/state:il/place:collinsville
- POP
- 23,717 (2025)
- CENTER
- 38.6773, -90.0067
- SOURCE
- census tiger
Government of Collinsville
Bodies, seats, agencies and services that belong to Collinsville itself.
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Since 2026
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Since 2026
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Since 2026
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Since 2026
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Since 2026
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Since 2026
Organization 7
Departments
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City Clerk's Office Clerk
Official records and support to the City Council. 618-346-5204.
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Chief administrative office of the City of Collinsville under its council-manager form of government. City Hall, 125 S. Center Street.
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Planning, zoning, and building.
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Finance Department Finance
City finance and budgeting.
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Fire Department Fire
Collinsville Fire Department.
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Police Department Police
Collinsville Police Department.
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Public Works Public Works
Streets, water, sewer, and infrastructure.