As a Home Rule city, the City of O'Fallon functions as an aldermanic form of government by state statute. This means that the mayor is elected at-large for a four-year term and is the chief executive officer. Two aldermen are elected for each of the city’s seven wards, making a total of 14. The mayor presides over City Council meetings, but does not vote except in the case of a tie.
The Mayor and City Council Members serve part-time. In order for the City to be run efficiently and professionally, the Mayor appoints the City Administrator with the consent of the City Council. The City Council establishes policy and law and the City Administrator handles the day-to-day management of the City organization.
The City Administrator is the COO of the City government and is in charge of the operations of the City. When the City Council makes a decision on an ordinance, law, or policy, the City Administrator is responsible for implementing those policies. The City Administrator recommends employee appointments to the Mayor.
The Administrator is responsible for the preparation of a proposed operating budget and its presentation to the City Council. The Annual Budget as adopted by Council provides funding, staffing, and general guidance to the City Departments for the fiscal year.