The Largest City in the US by Area
When people think of major American metropolises, New York City, Los Angeles, and Chicago often come to mind—but size isn't always measured by population. In real terms, the largest city in the US by area is Jacksonville, Florida, a sprawling municipality that covers more than 2,200 square miles of land and water. This remarkable expanse challenges common perceptions of urban scale and raises interesting questions about how American cities define their boundaries, grow outward, and balance natural landscapes with developed infrastructure.
The Geographic Giant: Jacksonville, Florida
Jacksonville's dominance in land area stems primarily from a unique governmental structure. Still, this merger allowed Jacksonville to annex vast tracts of surrounding land, creating a municipal footprint that dwarfs most other US cities. In 1968, the city and Duval County consolidated into a single consolidated city-county government. Today, Jacksonville proper encompasses approximately 2,265 square miles, making it not only the largest city by area in the contiguous United States but also one of the largest in the world by municipal boundaries.
This consolidation was driven by a desire to streamline services, reduce governmental redundancy, and plan growth more strategically. And the result is a city that includes urban downtown cores, suburban neighborhoods, extensive parklands, wetlands, and even beachfront communities—all under one administrative umbrella. For residents and officials alike, this means that city services, zoning decisions, and tax revenues are managed across a geographically diverse territory that would require multiple governments in most other states.
How City Boundaries Are Defined in the US
Understanding why Jacksonville is so large requires a look at how US cities establish their limits. Unlike many countries where city limits are set by national
