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is a city in DeSoto County, Mississippi, United States. It is the ninth largest city in Mississippi. Olive Branch is a suburb of Memphis, Tennessee. The city is situated at the intersection of the U.S. Highway 78 freeway and Mississippi State Highway 302 (known locally as Goodman Road). The population was 21,054 at the 2000 census. The United States Census Bureau estimates as of July 1, 2007, the population of Olive Branch has reached 30,635. Along with other fast growing suburban cities in DeSoto County, Olive Branch attributes most of its growth and development to the exodus of large numbers of middle-class families from central Memphis (white flight).
Olive Branch is less than 5 miles (8 km) from Memphis, Tennessee, the largest city in the area.
According to the United States Census Bureau, the city has a total area of 36.3 square miles (94.0 km²), of which, 36.2 square miles (93.7 km²) of it is land and 0.1 square miles (0.2 km²) of it (0.25%) is water.