Shiner is the home of the Spoetzl Brewery, the oldest independent brewery in Texas. The brewery is most well known for producing Shiner Bock, a dark German/Czech-style beer that is now distributed in 41 states.
According to the United States Census Bureau, the city has a total area of 2.4 square miles (6.3 km²), of which, 2.4 square miles (6.3 km²) of it is land and 0.41% is water.
There were 882 households out of which 26.6% had children under the age of 18 living with them, 51.1% were married couples living together, 10.7% had a female householder with no husband present, and 35.1% were non-families. 33.4% of all households were made up of individuals and 22.9% had someone living alone who was 65 years of age or older. The average household size was 2.25 and the average family size was 2.86.
In the city the population was spread out with 21.8% under the age of 18, 5.4% from 18 to 24, 23.1% from 25 to 44, 20.9% from 45 to 64, and 28.7% who were 65 years of age or older. The median age was 45 years. For every 100 females there were 80.9 males. For every 100 females age 18 and over, there were 74.9 males.
The median income for a household in the city was $28,205, and the median income for a family was $40,250. Males had a median income of $28,167 versus $17,426 for females. The per capita income for the city was $16,942. About 7.4% of families and 11.5% of the population were below the poverty line, including 10.7% of those under age 18 and 21.0% of those age 65 or over.