Junction is a city in and the county seat of Kimble County, Texas, United States. The population was 2,574 at the 2010 census.
Junction is located at 30°29′23″N 99°46′17″W / 30.489772°N 99.771335°W / 30.489772; -99.771335 (30.489772, -99.771335), about 115 miles (185 km) northwest of San Antonio and 140 miles (230 km) west of Austin in central Kimble County. Interstate 10 runs through the northern and eastern parts of the city, with access from Exits 456 and 457. I-10 leads southeast 52 miles (84 km) to Kerrville and beyond to San Antonio, and west 57 miles (92 km) to Sonora. U.S. Route 83 follows I-10 past Junction, leading north 31 miles (50 km) to Menard and south 102 miles (164 km) to Uvalde. U.S. Route 377 passes through the center of Junction as Main Street and 11th Street. To the northeast US 377 leads 45 miles (72 km) to Mason, and to the southwest it leads 46 miles (74 km) to Rocksprings.
According to the United States Census Bureau, Junction has a total area of 2.3 square miles (6.0 km), of which 0.01 square miles (0.02 km), or 0.26%, are covered by water. The city is named for its location at the confluence of the North and South Llano Rivers.
As of the census of 2000, 2,618 people, 1,028 households, and 699 families resided in the city. The population density was 1,145.0 people per square mile (441.4/km). The 1,222 housing units averaged 534.5 per square mile (206.0/km). The racial makeup of the city was 86.13% White, 0.04% African American, 0.38% Native American, 0.69% Asian, 11.12% from other races, and 1.64% from two or more races. Hispanics or Latinos of any race were 28.99% of the population.
Of the 1,028 households, 35.4% had children under the age of 18 living with them, 52.3% were married couples living together, 12.1% had a female householder with no husband present, and 32.0% were not families. About 29.6% of all households were made up of individuals, and 16.9% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.11.
In the city, the population was distributed as 28.2% under the age of 18, 7.3% from 18 to 24, 24.4% from 25 to 44, 22.0% from 45 to 64, and 18.1% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 85.9 males. For every 100 females age 18 and over, there were 82.4 males.
The median income for a household in the city was $25,833, and for a family was $30,865. Males had a median income of $24,096 versus $18,750 for females. The per capita income for the city was $14,971. About 16.4% of families and 21.7% of the population were below the poverty line, including 30.9% of those under age 18 and 16.8% of those age 65 or over.