2020 census

As of the 2020 census, Newcastle had a population of 3,374. The median age was 42.3 years. 20.8% of residents were under the age of 18 and 20.2% of residents were 65 years of age or older. For every 100 females there were 130.5 males, and for every 100 females age 18 and over there were 138.6 males age 18 and over.

There were 1,290 households in Newcastle, of which 25.1% had children under the age of 18 living in them. Of all households, 43.7% were married-couple households, 23.2% were households with a male householder and no spouse or partner present, and 26.5% were households with a female householder and no spouse or partner present. About 35.7% of all households were made up of individuals and 17.3% had someone living alone who was 65 years of age or older.

! Race !! Number !! Percent

|-

| White || 2,956 || 87.6%

|-

| Black or African American || 24 || 0.7%

|-

| American Indian and Alaska Native || 72 || 2.1%

|-

| Asian || 19 || 0.6%

|-

| Native Hawaiian and Other Pacific Islander || 4 || 0.1%

|-

| Some other race || 112 || 3.3%

|-

| Two or more races || 187 || 5.5%

|-

| Hispanic or Latino (of any race) || 225 || 6.7%

|}

2010 census

As of the census of 2010, there were 3,532 people, 1,439 households, and 868 families living in the city. The population density was . There were 1,663 housing units at an average density of . The racial makeup of the city was 94.6% White, 0.4% African American, 1.6% Native American, 0.3% Asian, 0.1% Pacific Islander, 1.0% from other races, and 2.0% from two or more races. Hispanic or Latino people of any race were 3.4% of the population.

There were 1,439 households, of which 27.2% had children under the age of 18 living with them, 47.0% were married couples living together, 8.9% had a female householder with no husband present, 4.4% had a male householder with no wife present, and 39.7% were non-families. 34.7% of all households were made up of individuals, and 13.3% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.86.

The median age in the city was 39.6 years. 22% of residents were under the age of 18; 8.9% were between the ages of 18 and 24; 25.7% were from 25 to 44; 27.2% were from 45 to 64; and 16.2% were 65 years of age or older. The gender makeup of the city was 53.9% male and 46.1% female.

2000 census

As of the census

| date=April 2011

Notable people

  • Frank Wheeler Mondell (1860–1939), United States Representative from Wyoming, helped establish Newcastle as a community and was its first mayor
  • Edwin Keith Thomson (1919–1960), Wyoming politician

See also

  • List of cities in Wyoming

References

  • Newcastle Chamber of Commerce