Falls City is a city in Karnes County, Texas, United States. The population was 514 at the 2020 census. Falls City is near the location of a uranium tailings disposal cell, completed in 1994 under the terms of the 1978 Uranium Mill Tailings Radiation Control Act.
The early settlers, predominantly Polish Catholics, founded the Holy Trinity Catholic Church in 1902.
Geography
Falls City is located in northwestern Karnes County, about southeast of the center of San Antonio, on the left (north) bank of the San Antonio River at (28.9807, –98.0196). It is traversed by the Union Pacific Railroad and US Route 181 (Front Street). It is northwest of Karnes City, the county seat.
According to the United States Census Bureau, Falls City has a total area of , of which , or 2.00%, are water.
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2020 census
As of the 2020 census, Falls City had a population of 514. The median age was 38.9 years. 27.4% of residents were under the age of 18 and 19.5% of residents were 65 years of age or older. For every 100 females there were 103.2 males, and for every 100 females age 18 and over there were 95.3 males age 18 and over.
0.0% of residents lived in urban areas, while 100.0% lived in rural areas.
There were 200 households in Falls City, of which 39.5% had children under the age of 18 living in them. Of all households, 53.0% were married-couple households, 20.0% were households with a male householder and no spouse or partner present, and 23.0% were households with a female householder and no spouse or partner present. About 25.0% of all households were made up of individuals and 13.5% had someone living alone who was 65 years of age or older.
! Race !! Number !! Percent
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| White || 399 || 77.6%
|-
| Black or African American || 3 || 0.6%
|-
| American Indian and Alaska Native || 0 || 0.0%
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| Asian || 0 || 0.0%
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| Native Hawaiian and Other Pacific Islander || 0 || 0.0%
|-
| Some other race || 40 || 7.8%
|-
| Two or more races || 72 || 14.0%
|-
| Hispanic or Latino (of any race) || 146 || 28.4%
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2010 census
As of the census