Johnson City is a city in Blanco County, Texas, United States. The population was 1,656 at the 2010 census. It is the county seat of Blanco County.HistoryJohnson City was the hometown of President Lyndon Johnson and was founded by James Polk Johnson, nephew of Samuel Ealy Johnson, Sr. and uncle to President Johnson. James Polk Johnson donated a 320acre site on the Pedernales River for the founding of the town in 1879. The county seat of Blanco County was moved to Johnson City in 1890.GeographyJohnson City is located in central Blanco County at, about 1mi south of the Pedernales River. U.S. Routes 281 and 290 join near the center of town; US 281 leads north to Marble Falls, and US 290 leads west to Fredericksburg. The two highways run south out of town together; US 290 soon turns east and leads to Austin, while US 281 continues south to San Antonio.According to the United States Census Bureau, Johnson City has a total area of 4.5km2, all land.ClimateJohnson City experiences a humid subtropical climate, with hot summers and a generally comfortable winter. Temperatures range from 82°F in the summer to 47°F during winter.
