Platteville is a statutory town in Weld County, Colorado, United States. The population was 2,955 at the 2020 census. The town was named for its location on the Platte River.
Geography
Platteville is located at (40.214468, -104.824070).
The town is situated along the east bank of the South Platte River at the intersection of U.S. Highway 85 and State Highway 66.
The Fort St. Vrain Generating Station, originally a nuclear power plant and now operating as a natural gas powered electricity generating facility operated by Xcel Energy, is approximately one-quarter-mile northwest of Platteville.
According to the United States Census Bureau, Platteville has a total area of , all of it land.
Demographics
2020 census
As of the 2020 census, Platteville had a population of 2,955. The median age was 34.5 years. 27.2% of residents were under the age of 18 and 11.4% of residents were 65 years of age or older. For every 100 females there were 106.8 males, and for every 100 females age 18 and over there were 101.3 males age 18 and over.
0.0% of residents lived in urban areas, while 100.0% lived in rural areas.
There were 993 households in Platteville, of which 41.0% had children under the age of 18 living in them. Of all households, 56.3% were married-couple households, 16.9% were households with a male householder and no spouse or partner present, and 20.8% were households with a female householder and no spouse or partner present. About 18.8% of all households were made up of individuals and 6.5% had someone living alone who was 65 years of age or older.
! Race !! Number !! Percent
|-
| White || 1,825 || 61.8%
|-
| Black or African American || 10 || 0.3%
|-
| American Indian and Alaska Native || 53 || 1.8%
|-
| Asian || 19 || 0.6%
|-
| Native Hawaiian and Other Pacific Islander || 1 || 0.0%
|-
| Some other race || 519 || 17.6%
|-
| Two or more races || 528 || 17.9%
|-
| Hispanic or Latino (of any race) || 1,279 || 43.3%
|}
2010 census
At the 2010 census there were 2,485 people, 951 households, and 935 families residing in Platteville. The population density was . There were 819 dwelling units at an average density of . The racial makeup of Platteville was 73.84% White, 0.55% Native American, 0.30% Asian, 0.17% Pacific Islander, 22.24% from other races, and 2.91% from two or more races. Hispanic or Latino of any race were 35.19%.
2000 census
Of the 786 households 45.4% had children under the age of 18 living with them, 61.6% were married couples living together, 10.1% had a female householder with no husband present, and 24.4% were non-families. 18.1% of households were one person and 5.3% were one person aged 65 or older. The average household size was 3.02 and the average family size was 3.50.