when heading north. Umbria Street was once known as Washington Street. The name was changed to reflect a large influx of Italian immigrants at the beginning of the 20th century. The Manayunk Main Street Historic District and James Dobson School are listed on the National Register of Historic Places. The historic district has 91 contributing buildings, 2 contributing sites, and 12 contributing structures. The district was added to the National Register of Historic Places in 1982. Honored by the U.S. Navy Two U.S. Navy ships were named USS Manayunk. The first was the monitor USS Manayunk (1864) which was constructed in Pittsburgh, Pennsylvania, for use in the American Civil War, but was commissioned too late to serve in that action. She was later pulled out of reserve and renamed USS Ajax (1864) by the prominent Philadelphian Secretary of the Navy Adolph E. Borie and saw action in the Spanish–American War. The second ship to be named Manayunk was the World War II net laying ship USS Manayunk (AN-81), built in Portland, Oregon, which, like the first USS Manayunk, was built late in the war, but did operate in the Pacific Ocean in the Mariana Islands, primarily in the Saipan-Tinian area, laying and maintaining nets and moorings until the spring of 1946. Demographics As of the 2010 Census, Manayunk had 5,913 residents, 2,767 households, and 769 families. The racial makeup of Manayunk was 92.6% White/Caucasian, 3.5% Black or African-American, 1.7% Asian, 1.7% two or more races, .4% some other race, and .1% were American Indian/Alaska Native. Hispanic or Latino people of any race were 2.4% of the population. There were 2,767 households, of which 8.7% had children under the age of 18 living with them and 72.2% were non-families. Of all households, 35.4% were made up of individuals living alone, and 4.8% had someone living alone who was 65 years of age or older. The average household size was 2.13 and the average family size was 2.76. The median age in Manayunk was 27 years. There were 6.1% of residents under the age of 18; 28.5% were between the ages of 18 and 24; 45.3% were from 25 to 44; 13.6% were from 45 to 64; and, 6.5% were 65 years of age or older. The gender makeup of Manayunk was 51.5% male and 48.4% female. There were 3,053 housing units in Manayunk. Of the total housing units, 2,767 were occupied: