Martin County is a county located in the U.S. state of Florida. As of the most recent data available, the county has a population of approximately 126,731 people, with a population density of about 227.93 persons per square mile.
The county spans a total land area of 556.00 square miles (1,440.00 square kilometers). The administrative center and county seat is Stuart, which often serves as a hub for local governance and services. The largest city within the county by population is Palm City.
Geographically, Martin County experiences varied elevations, with its highest point at Indiantown 30 ft and its lowest point at Palm City 5 ft. The region operates in the UTC-5.