Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. Every office link was opened and checked against the office's own site between September 23, 2026 and September 25, 2026.
O'Fallon, Missouri, in St. Charles County, has about 95,000 residents (2024 Census Bureau estimate). The title to a parcel in O'Fallon is in the deed records of the Recorder of Deeds and its taxable value is set by the County Assessor; what is built on it is a matter for the city. This guide says who keeps each record and where the page for each office is.
This guide covers deeds, assessed values, city permits and records, evictions and court cases, records requests, directory links and common questions.
Related guides: O'Fallon public records, St. Charles County property records, O'Fallon arrest records, O'Fallon warrants, O'Fallon criminal records, O'Fallon court records, Missouri arrest records and Missouri inmate search.
Deeds, Mortgages and Liens in O'Fallon
Who owns a parcel in O'Fallon and what it sold for are in the deed records of the Recorder of Deeds, with every lien or mortgage against the land.
SearchSystems opened and checked the Recorder of Deeds' page at sccmo.org/511/Recorder-of-Deeds (page title: Recorder of Deeds | St Charles County, MO), phone 636-949-7505, 201 N. Second St. Suite 338 St. Charles, MO 63301, Monday - Friday 8 a.m. - 5 p.m., which answered when SearchSystems opened it on September 23, 2026.
Assessed Values and the Tax Roll in O'Fallon
The County Assessor sets the value each parcel in O'Fallon is taxed on and keeps the parcel maps. Missouri reassesses property in odd-numbered years and assesses homes at 19 percent of market value.
SearchSystems opened and checked the County Assessor's page at stcharlescitymo.gov/1244/Assessor-Database (page title: Assessor Database | St. Charles, MO), which answered when SearchSystems opened it on September 23, 2026.
Permits and City Records in O'Fallon
Building permits, zoning and code cases are the city's own. For O'Fallon, SearchSystems opened and checked the city hall page at ofallonmo.gov (page title: City of O'Fallon, MO), phone 636-240-2000, 100 North Main Street O'Fallon, MO 63366, Monday - Friday 8:30AM - 4:30PM, which answered when SearchSystems opened it on September 25, 2026.
The city clerk's page SearchSystems verified is at ofallonmo.gov/departments/city_clerk.php (page title: City of O'Fallon, MO), phone 636-240-2000, 100 North Main Street O'Fallon, MO 63366, Monday - Friday 8:30AM - 4:30PM, which answered when SearchSystems opened it on September 25, 2026.
Evictions and Court Cases About Land in O'Fallon
Court cases about land from O'Fallon, evictions among them, are filed in the St. Charles County Circuit Court.
The court records page SearchSystems verified for the county is at stcharlescitymo.gov/176/Municipal-Courts, phone (636) 949-3378. That page belongs to a lower court, not to the St. Charles County Circuit Court.
Asking a County Office for a Record
Under the Missouri Sunshine Law a county office must answer a request within 3 business days, and it may charge research time and copying.
More Official Property and Land Records Pages for St. Charles County
The SearchSystems directory, online since 1997, lists the official pages for St. Charles County and Missouri. These recorded document pages from its St. Charles County listing were opened again on October 2, 2026 and each one still answers:
- Land Records (sccmo.org)
Frequently Asked Questions
Who records deeds in O'Fallon?
The Recorder of Deeds, at sccmo.org/511/Recorder-of-Deeds, phone 636-949-7505. Deeds, mortgages and liens on land in O'Fallon are filed there, and the County Assessor (stcharlescitymo.gov/1244/Assessor-Database) has the assessment records.
Who sets the assessed value of a property in O'Fallon?
The County Assessor, whose page SearchSystems verified is at stcharlescitymo.gov/1244/Assessor-Database.
Where are evictions from O'Fallon filed?
In the St. Charles County Circuit Court. The file is public unless the court seals it.
How is property assessed in Missouri?
Missouri reassesses property in odd-numbered years and assesses homes at 19 percent of market value.
Is this the official O'Fallon website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.