New Eagle, originally called Riverview, adjoins the City of Monongahela and was laid out in 1901 by J. S. Markell in Carroll Township and incorporated as the Borough of New Eagle on September 9, 1912.
New Eagle is the birthplace of Pro Football Hall of Fame quarterback Joe Montana.
According to the United States Census Bureau, the borough has a total area of 1.1 square miles (2.8 km2), of which 1.0 square mile (2.6 km2) is land and 0.1 square miles (0.26 km2) (8.04%) is water.
As of the census[7] of 2000, there were 2,262 people, 962 households, and 650 families residing in the borough. The population density was 2,189.4 people per square mile (845.3 people/km2). There were 1,068 housing units at an average density of 1,033.7 per square mile (399.1/km2). The racial makeup of the borough was 96.99% White, 1.11% African American, 0.13% Native American, 0.49% Asian, 0.09% Pacific Islander, 0.13% from other races, and 1.06% from two or more races. Hispanic or Latino of any race were 0.09% of the population.
There were 962 households, out of which 26.1% had children under the age of 18 living with them, 51.6% were married couples living together, 12.3% had a female householder with no husband present, and 32.4% were non-families. 27.3% of all households were made up of individuals, and 13.7% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 2.86.
In the borough the population was spread out, with 21.6% under the age of 18, 6.4% from 18 to 24, 27.9% from 25 to 44, 24.0% from 45 to 64, and 20.1% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 90.1 males. For every 100 females age 18 and over, there were 87.2 males.
The median income for a household in the borough was $30,494, and the median income for a family was $35,500. Males had a median income of $33,100 versus $22,786 for females. The per capita income for the borough was $15,636. About 7.8% of families and 9.5% of the population were below the poverty line, including 15.6% of those under age 18 and 3.1% of those age 65 or over.
