Johnson City is located north of
San Antonio and east of
Fredericksburg on US 290 and the Pedernales River at the edge of Lyndon Baines Johnson National Historical Park, and is the seat of
Blanco County.
In the late 1960s and early 1970s, when Johnson was president of the United States, the major income in Johnson City came from the tourist industry, and the number of businesses rose to fifty-two. By 1986 the number had dropped to twenty-six.
The population fluctuated from 400 in 1925 to 950 in the late 1940s, and from 660 to 800 between the late 1960s and the mid-1980s. Johnson City continues to be mainly a tourist center. In 1990 the population was 932.
