City manager, city administrator, and chief administrative officer usually describe the same job: a hired professional who runs a municipality’s daily operations while elected officials focus on policy. The real difference between a city manager, a city administrator, and a CAO is almost never the title itself. It’s the form of government the community uses and the specific powers its charter or ordinance grants to the position. ICMA, the professional association for the field, treats “city manager, county administrator, town manager, chief administrative officer” as interchangeable descriptions of a single career path.1ICMA. Local Government Management: A Career Overview Two people with different titles can hold identical authority. Two people with the same title can hold very different authority. What separates them is structural.
Why the Form of Government Matters More Than the Title
Roughly half of U.S. municipalities with populations of 2,500 or more use the council-manager form, making it the most common local government structure.2ICMA. Council-Manager Form of Government Most of the rest use the mayor-council form. Each distributes power differently between the elected officials and the hired professional, and that distribution is what actually changes the job.
A person called “city manager” in one town and “chief administrative officer” in another may run their governments the same way. Meanwhile, two people both called “city administrator” could operate under wildly different levels of autonomy depending on whether they answer to a mayor or directly to a council. Reading the charter tells you more than reading the business card.
City Manager: The Council-Manager Model
Under the council-manager form, the elected council functions like a board of directors. Council members set policy, approve the budget, and pass local legislation. They hire a professional manager with broad executive authority to carry those policies out and oversee everything operational.2ICMA. Council-Manager Form of Government The manager prepares the budget, hires and supervises staff, advises the council on the long-term consequences of its decisions, and translates policy into operations.
This gives the manager genuine independence. The manager recruits, hires, supervises, and terminates government staff, including department heads like the police chief or public works director.2ICMA. Council-Manager Form of Government The council generally cannot go around the manager to deal directly with employees on administrative matters. That wall between the political side and the operational side is the whole point of the model. It keeps staffing, contracts, and budget execution insulated from election-cycle pressure.
The check on the manager’s power is straightforward. The manager is an at-will employee who can be fired by a majority vote of the council, consistent with local law and any employment agreement.2ICMA. Council-Manager Form of Government Contracts typically spell out performance expectations and severance provisions; ICMA’s sample severance agreement provides six months of pay at the current rate if the manager is terminated without cause.3ICMA. Sample Severance Agreement Actual terms vary, and larger cities often negotiate more.
City Administrator: The Mayor-Council Model
In a mayor-council government, voters elect both a council and a mayor who serves as the city’s chief executive. When one of these cities hires a professional administrator, that person works for the mayor rather than the council. The administrator’s job is to execute the mayor’s priorities, coordinate departments, handle procurement, manage contracts, and keep the bureaucracy moving in the direction the mayor sets. The mayor retains final authority over major personnel decisions and policy direction.
The practical difference from a city manager is significant. An administrator typically cannot hire or fire department heads independently. They recommend candidates, flag performance problems, and manage operational details, but the mayor makes the call. Their influence is tied to the mayor’s tenure and trust. A new mayor can bring in a new administrator, and that dependency makes the role more collaborative and less autonomous than a city manager’s.
The tradeoff runs in both directions. Voters who want a directly accountable executive get one in the mayor, and the administrator supplies professional management expertise that most elected officials lack. But administrative decisions can become more politically driven, because the administrator’s continued employment depends on keeping the mayor’s agenda on track.
Chief Administrative Officer: Sometimes a Synonym, Sometimes Not
The CAO title appears in cities, counties, and metropolitan governments of all sizes. In many cases it means exactly the same thing as “city manager.” ICMA treats the titles as interchangeable, recognizing that what a community picks reflects local tradition and charter language more than a different set of responsibilities.1ICMA. Local Government Management: A Career Overview
Where the CAO title tends to signal a genuine difference is in county governments and large metropolitan areas. County CAOs often oversee more fragmented bureaucracies. Unlike a city manager who controls nearly all administrative appointments, a county CAO may share authority with independently elected officials like the county clerk, tax assessor, or sheriff, none of whom the CAO can hire or fire. That fragmentation forces county CAOs to lead through persuasion and coordination rather than direct authority. The management style ends up more facilitative, because the CAO cannot simply direct an independently elected officeholder to change course.
ICMA’s own sample job descriptions reflect this flexibility. One describes a city administrator who reports directly to the council under a city charter, resolves conflicts between departments, and exercises whatever additional powers the council grants.4ICMA. Sample Job Descriptions – Chief Administrative Officer The specifics are always defined locally. Reading your own city or county charter matters more than parsing the title.
How Charters and Ordinances Shape the Job
Municipalities create these leadership positions using authority granted by state home rule powers or general statutory codes. The mechanism varies:
- A charter functions as a local constitution, adopted or amended by voters. Charters commonly establish a city manager position, define its scope, and specify how the manager is appointed and removed. Charter provisions are harder to change than ordinary ordinances, which gives the position more stability.
- Cities without charter provisions can create a position through an ordinance passed by the governing body. Ordinance-created positions are easier to modify or eliminate, since the council can amend an ordinance without a public vote.
Removal protections track those foundations. A charter-created city manager position often requires a supermajority council vote for termination. An ordinance-based administrator might serve at the pleasure of the mayor or be removable by a simple majority. Some jurisdictions split the process: the council confirms the initial appointment, but only the mayor can initiate removal. These details determine whether the professional is primarily accountable to the legislative body, the elected executive, or both.
Changing a city’s form of government entirely, such as switching from mayor-council to council-manager, usually requires a public process. The council adopts a resolution of intent, holds public hearings, and passes an implementing ordinance. In many jurisdictions, citizens can force the question to a referendum by gathering enough petition signatures.
The Powers That Actually Differ
Three areas define most of the day-to-day authority, and each one can look different depending on the charter and the form of government.
Hiring and Firing
In a full council-manager system, the manager hires and fires all appointive officers and employees, with limited exceptions such as the city attorney in some charters. The council may require confirmation for certain high-profile appointments but generally cannot block a termination. In mayor-council systems, the administrator recommends personnel actions, but the mayor retains final hiring and firing authority over department heads. County CAOs often have neither power over independently elected officeholders.
Spending and Purchasing
Charters and ordinances set dollar thresholds above which the professional executive must seek council approval for contracts and purchases. These limits vary widely by community size and budget. A small city might require council approval for anything over $25,000, while a larger municipality might allow the manager to approve expenditures up to $50,000 or $100,000 independently. Competitive bidding requirements typically kick in for larger purchases regardless of the threshold.
Budget Preparation
In both forms of government, the hired professional typically prepares the annual budget and presents it to the governing body for approval.2ICMA. Council-Manager Form of Government The council or mayor can amend the proposal, but the executive does the analytical work: projecting revenues, identifying funding gaps, and recommending tradeoffs. In practice, the budget document reveals more about the executive’s priorities and competence than almost any other part of the job.
How to Tell Which One Your City Has
Start with the charter, if there is one, and then check the municipal code. Look for three things. First, does the city have an elected mayor who serves as chief executive, or is the mayor a member of the council who presides at meetings? An executive mayor points to a mayor-council structure with a city administrator. A ceremonial or presiding mayor points to a council-manager structure with a city manager. Second, who has the power to hire and fire department heads? If the professional executive does, the community is running a council-manager or CAO model with real operational authority. If the mayor does, the professional is likely an administrator supporting the mayor. Third, who signs the executive’s evaluation and controls the contract? The answer identifies the true boss regardless of the title used.
Once you know the answers to those three questions, the title on the door becomes a minor detail. A city manager, a city administrator, and a chief administrative officer can all be the same job or three different ones. The charter tells you which.