Hays County is located on the Edwards Plateau in the United States. This region has been inhabited for thousands of years, with evidence of Paleo-Indians dating back to 6000 BC. C. and archaeological evidence of native agriculture from 1200 AD.
The county's population is diverse, with 24.50% under 18, 20.50% from 18 to 24, 28.20% from 25 to 44, 19.10% from 45 to 64, and 7.70% aged 65 or older. The median age is 28 years, and for every 100 females there are 101.30 males, and for every 100 females age 18 and over, there are 99.50 males. When it comes to politics, Democratic voters primarily reside along the I-35 Corridor and the eastern communities, while communities west of the I-35 corridor lean towards Republicans. San Marcos, home of Texas State University, and the city of Kyle generally vote for Democrats, while Buda, Dripping Springs and Wimberley generally vote for Republicans. Hays County covers an area of 693.5 square miles in south-central Texas; the center of the county is 98°00' west longitude and 30°00' north latitude, twenty-three miles southwest of Austin. The main natural grasses are the large blue stalk and indigenous grass; the trees commonly associated with Central Texas, including live oak, cedar, walnut and mesquite, are native to Hays County. However, like other suburban counties in the state, Hays County began to lean towards the Republican Party in the 1970s.