Nixa is a city in Christian County, Missouri, United States. The population was 12,124 at the 2000 census, though a 2009 estimate places it at 19,458. It is part of the Springfield, Missouri Metropolitan Statistical Area.
Nixa is located at 37°2′43″N 93°17′56″W / 37.04528°N 93.29889°W / 37.04528; -93.29889 (37.045253, -93.298755).
According to the United States Census Bureau, the city has a total area of 6.2 square miles (16.0 km²), all of it land. The modern day city rests on and around seven hills.