"Black Protestants;" and 16,405 "Orthodox Christians," with 996,826 listed as "unclaimed" and 16,405 as "other" in the metro area. A 2017 study by the Cohen Center for Modern Jewish Studies at Brandeis University estimated the Jewish population of Greater Pittsburgh was 49,200. According to a 2014 study by the Pew Research Center, 78% of the population of the city identified themselves as Christians, with 42% professing attendance at a variety of churches that could be considered Protestant, and 32% professing Catholic beliefs. while 18% claim no religious affiliation. The same study says that other religions (including Judaism, Buddhism, Islam, and Hinduism) collectively make up about 4% of the population. In 2010, there were 143,739 households, out of which 21.9% had children under the age of 18 living with them, 31.2% were married couples living together, 16.5% had a female householder with no husband present, and 48.4% were non-families. 39.4% 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 2.17 and the average family size was 2.95. In the city, the population was spread out, with 19.9% under the age of 18, 14.8% from 18 to 24, 28.6% from 25 to 44, 20.3% from 45 to 64, and 16.4% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 90.7 males. For every 100 females age 18 and over, there were 87.8 males. The median income for a household in the city was $28,588, and the median income for a family was $38,795. Males had a median income of $32,128 versus $25,500 for females. The per capita income for the city was $18,816. About 15.0% of families and 20.4% of the population were below the poverty line, including 27.5% of those under the age of 18 and 13.5% ages 65 or older. By the 2019 American Community Survey, the median income for a household increased to $53,799. Families had a median income of $68,922; married-couple families had a median income of $93,500; and non-family households had a median income of $34,448. Pittsburgh's wealthiest suburbs within city limits are Squirrel Hill and Point Breeze, the only two areas of the city which have average household incomes over $100,000 a year. Outside of city limits, Sewickley Heights is by a wide margin the wealthiest suburb