Unincorporated communities, localities and place names located partially or completely within the township include Convent Station, Gillespie Hill, Loantaka Terrace, Normandy Heights, Normandy Park and Washington Valley. Morris Township completely surrounds Morristown, making it part of 21 pairs of "doughnut towns" in the state, where one municipality entirely surrounds another. The township borders the Morris County municipalities of Denville, Parsippany-Troy Hills Township, Morris Plains and Hanover Township to the north, Harding Township to the south, Mendham Township and Randolph to the west and Florham Park and Madison to the east. The Census Bureau's 2006-2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $132,191 (with a margin of error of +/- $7,204) and the median family income was $154,265 (+/- $8,489). Males had a median income of $108,448 (+/- $5,932) versus $64,753 (+/- $12,368) for females. The per capita income for the borough was $65,335 (+/- $4,396). About 1.0% of families and 3.9% of the population were below the poverty line, including 1.0% of those under age 18 and 10.3% of those age 65 or over. As of the 2000 United States Census there were 21,796 people, 8,116 households, and 5,949 families residing in the township. The population density was 1,383.0 people per square mile (534.0/km²). There were 8,298 housing units at an average density of 526.5 per square mile (203.3/km²). The racial makeup of the township was 88.63% White, 5.46% African American, 0.15% Native American, 3.90% Asian, 0.01% Pacific Islander, 0.91% from other races, and 0.95% from two or more races. Hispanic or Latino of any race were 3.81% of the population. There were 8,116 households out of which 31.2% had children under the age of 18 living with them, 64.6% were married couples living together, 6.8% had a female householder with no husband present, and 26.7% were non-families. 21.8% of all households were made up of individuals and 7.6% had someone living alone who was 65 years of age or older.