Location of Nixon, Texas
|Coordinates: 29°16′14″N 97°45′45″W|
Nixon is located at (29.270443, -97.762423),primarily within Gonzales County.
According to the United States Census Bureau, the city has a total area of 1.1 square miles (2.9 km²), all of it land.
Nixon was founded in 1906 as Nixonville, when the Galveston, Harrisburg and San Antonio Railway built its lines through the John T. Nixon Ranch.
Nixon, Texas is the location of the Nixon Refinery belonging to Blue Dolphin Energy.