Platte County was created February 21, 1911, with land detached from Laramie County and organized in 1913.[3] The county was named for the North Platte River, which flows through the northeastern part of the county.[4]
Geography
According to the US Census Bureau, the county has a total area of 2,111 square miles (5,470 km2), of which 2,084 square miles (5,400 km2) is land and 27 square miles (70 km2) (1.3%) is water.[5] It is the third-smallest county in Wyoming by area.
There were 3,625 households, out of which 30.00% had children under the age of 18 living with them, 58.90% were married couples living together, 6.80% had a female householder with no husband present, and 31.20% were non-families. 27.30% of all households were made up of individuals, and 13.20% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 2.92.
The county population contained 25.40% under the age of 18, 6.60% from 18 to 24, 24.30% from 25 to 44, 27.30% from 45 to 64, and 16.60% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 97.40 males. For every 100 females age 18 and over, there were 96.50 males.
The median income for a household in the county was $33,866, and the median income for a family was $41,449. Males had a median income of $31,484 versus $19,635 for females. The per capita income for the county was $17,530. About 8.50% of families and 11.70% of the population were below the poverty line, including 15.90% of those under age 18 and 12.20% of those age 65 or over.
2010 census
As of the 2010 United States Census, there were 8,667 people, 3,838 households, and 2,505 families in the county.[10] The population density was 4.2 people per square mile (1.6 people/km2). There were 4,667 housing units at an average density of 2.2 units per square mile (0.85 units/km2).[11] The racial makeup of the county was 95.4% white, 0.4% Asian, 0.4% American Indian, 0.3% black or African American, 0.1% Pacific islander, 2.0% from other races, and 1.5% from two or more races. Those of Hispanic or Latino origin made up 6.7% of the population.[10] In terms of ancestry, 45.3% were German, 21.1% were English, 17.3% were Irish, and 6.2% were American.[12]
Of the 3,838 households, 24.5% had children under the age of 18 living with them, 54.9% were married couples living together, 6.9% had a female householder with no husband present, 34.7% were non-families, and 30.6% of all households were made up of individuals. The average household size was 2.23 and the average family size was 2.76. The median age was 47.5 years.[10]
The median income for a household in the county was $42,947 and the median income for a family was $51,759. Males had a median income of $55,757 versus $29,366 for females. The per capita income for the county was $24,185. About 6.1% of families and 10.3% of the population were below the poverty line, including 18.2% of those under age 18 and 3.5% of those age 65 or over.[13]
Platte County has been a statewide bellwhether since its creation in 1912. No candidate in history has ever carried Wyoming without winning Platte County.
United States presidential election results for Platte County, Wyoming[16]
