were told to watch for ‘burning bluffs’ in the area. Settlement began in the early 1880s. A fur trader named Bernard Pratte once lived at the mouth of what was then known as the ‘Fish Creek’. Pratte's last name was mistakenly transcribed as Platte on an early map of the creek and the spelling error stuck. The town that would become Platte was named after the creek. For 12 years, Charles Mix County was the only county in the state of South Dakota without a railroad. Platte originated in the summer of 1900 after it was selected as the terminus for a Chicago, Milwaukee, and St. Paul railroad branch line from Yankton. The railroad arrived in October and buildings were moved from the nearby settlements of Castalia, Old Platte, and Edgerton. The Platte Enterprise newspaper was founded in 1900 and is still published today. The Great Depression and drought of the 1930s led to unemployment and out-migration in the area. A dam was constructed on the Platte Creek during this time. The area became a place for picnics and recreation. In 1956, the Fort Randall Dam was completed creating Lake Francis Case. In 1966, the Platte-Winner Bridge was completed over the lake giving travelers a new route to and from the Black Hills.
Geography
Platte is located at . According to the United States Census Bureau, the city has a total area of, all land. The community is at the junction of Routes 44 and 45.
As of the census of 2010, there were 1,230 people, 548 households, and 337 families living in the city. The population density was. There were 625 housing units at an average density of. The racial makeup of the city was 98.5% White, 0.6% Native American, and 0.9% from two or more races. Hispanic or Latino of any race were 0.1% of the population. There were 548 households of which 23.0% had children under the age of 18 living with them, 56.6% were married couplesliving together, 3.5% had a female householder with no husband present, 1.5% had a male householder with no wife present, and 38.5% were non-families. 35.9% of all households were made up of individuals and 19.5% had someone living alone who was 65 years of age or older. The average household size was 2.16 and the average family size was 2.80. The median age in the city was 48.6 years. 20.4% of residents were under the age of 18; 6.3% were between the ages of 18 and 24; 19% were from 25 to 44; 25.9% were from 45 to 64; and 28.4% were 65 years of age or older. The gender makeup of the city was 48.4% male and 51.6% female.
2000 census
As of the census of 2000, there were 1,367 people, 587 households, and 363 families living in the city. The population density was 1,364.4 people per square mile. There were 637 housing units at an average density of 635.8 per square mile. The racial makeup of the city was 99.20% White, 0.29% Native American, 0.15% Asian, 0.07% from other races, and 0.29% from two or more races. Hispanic or Latino of any race were 0.66% of the population. There were 587 households out of which 26.6% had children under the age of 18 living with them, 56.6% were married couples living together, 3.6% had a female householder with no husband present, and 38.0% were non-families. 37.5% of all households were made up of individuals and 23.3% had someone living alone who was 65 years of age or older. The average household size was 2.22 and the average family size was 2.95. In the city, the population was spread out with 24.2% under the age of 18, 4.8% from 18 to 24, 21.1% from 25 to 44, 20.0% from 45 to 64, and 29.8% who were 65 years of age or older. The median age was 45 years. For every 100 females, there were 89.6 males. For every 100 females age 18 and over, there were 84.3 males. As of 2000 the median income for a household in the city was $30,369, and the median income for a family was $38,750. Males had a median income of $27,283 versus $19,464 for females. The per capita income for the city was $15,962. About 3.0% of families and 5.4% of the population were below the poverty line, including 3.8% of those under age 18 and 12.0% of those age 65 or over.
