Platte is a city in Charles Mix County, South Dakota, United States. The population was 1,230 at the 2010 census. The community is named after the Platte Creek, a tributary of the Missouri River reservoir Lake Francis Case. Platte is located 15 miles east of the lake.
Platte is located at 43°23′11″N 98°50′34″W / 43.38639°N 98.84278°W / 43.38639; -98.84278 (43.386321, -98.842736).
According to the United States Census Bureau, the city has a total area of 1.02 square miles (2.64 km), 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 residing in the city. The population density was 1,205.9 inhabitants per square mile (465.6/km). There were 625 housing units at an average density of 612.7 per square mile (236.6/km). 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 couples living 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.
As of the census of 2000, there were 1,367 people, 587 households, and 363 families residing in the city. The population density was 1,364.4 people per square mile (527.8/km²). There were 637 housing units at an average density of 635.8 per square mile (245.9/km²). 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.
Platte South Dakota neighborhoods include: Alcester, Baltic, Black Hawk, Box Elder, Brandon, Buffalo Ridge, Camp Crook, Canton, Caputa, Central City, Chancellor, Colton, Creighton, Crooks, Custer, Deadwood, Dell Rapids, Elkton, Ellsworth Afb, Garretson, Hartford, Hermosa, Hill City, Howes, Humboldt, Keystone, Lead, Ludlow, Montrose, Nemo, New Underwood, North Sioux City, Owanka, Parker, Quinn, Rapid City, Renner, Rowena, Saint Onge, Scenic, Sherman, Silver City, Sioux Falls, Spearfish, Sturgis, Valley Springs, Wall, Wanblee, Wasta, Whitewood