Contact by email
- General information
- kpieper@ofallonmo.gov
- City of O'Fallon Utility Billing
- utilityregistry@ofallonmo.gov
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Contact us
Contact by phone
- General information
- 636-379-5488
- City of O'Fallon Utility Billing
- 636-379-5488
Available services
City Hall 100 N. Main St. Ofallon MO 63366 | 636-379-5488
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