Why some American cities and counties are actually the same government

Cultures · Published 3 October 2026 Swipe more like this →

In short: When a city and its surrounding county merge, they create a consolidated jurisdiction. This unified structure streamlines planning, cuts costs, and boosts administrative efficiency. While these hybrid governments are common in the Midwest and South, they often face significant hurdles, as voters frequently reject proposals to combine these local entities.

A consolidated city-county functions as a single authority holding the combined legal powers of both a municipal corporation and a county. Unlike an independent city, where the county level of government is entirely absent, a consolidated city-county maintains a nominal existence for both entities. This means that even after merging, the jurisdiction may still contain smaller, independent municipalities that retain their own local powers and did not join the unified government.

The primary motivation for these mergers is to address specific governance challenges. By creating a single chief executive—who serves as both mayor and county head—and a shared legislative body, these regions aim to simplify planning, increase revenue, and improve overall efficiency. However, the process is rarely simple. Between 1902 and 2010, data compiled by former Albuquerque mayor David Rusk shows that out of 105 voter referendums on consolidation, only 27 were approved. The path to unification often requires navigating complex state laws and multiple legislative attempts.

The landscape of these governments varies widely. In Philadelphia, Pennsylvania, the largest consolidated city-county by population, the city and county have been conterminous since 1854, with government structures fully unified by 1952. Conversely, places like Jacksonville, Florida, and Athens, Georgia, have consolidated while allowing smaller incorporated towns within their borders to maintain separate governments. Some regions, such as New York City, offer a unique variation where five boroughs exist, each co-extensive with a county, yet all executive and legislative power is held by the central city government. These arrangements highlight the diverse ways American localities adapt their structures to manage growth and regional administration.

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