the steel mills and factories of the city. American Community Survey The city saw an increase of 20,606 people from July 1, 2007 to July 1, 2008, according to census data. This marked the second consecutive year of population increase, while still not yet returning to the official Census 2000 population level. As of the 2007 US Census American Community Survey the largest European ancestries were: Irish: (201,836) German: (200,392) Polish: (179,868) Italian: (96,599) English: (60,307) Households There were more than 1,061,928 households, of which 28.9% had children under the age of 18 living with them, 35.1% were married couples living together, 18.9% had a female householder with no husband present, and 40.4% were non-families. Of all households, 32.6% were made up of individuals, and 8.7% had someone living alone who was 65 years of age or older. The average household size was 2.67 and the average family size was 3.50. Of the city population, 26.2% were under the age of 18, 11.2% were from 18 to 24, 33.4% were from 25 to 44, 18.9% from 45 to 64, and 10.3% 65 years of age or older. The median age was 32 years. For every 100 females there were 94.2 males. For every 100 females age 18 and over, there were 91.1 males. The median income for a household in the city was $38,625, and the median income for a family was $42,724. Males had a median income of $35,907 versus $30,536 for females. The per capita income for the city was $20,175. Below the poverty line were 19.6% of the population and 16.6% of the families. Of the total population, 28.1% of those under the age of 18 and 15.5% of those 75 and older were living below the poverty line. Population estimates in 2008 put the number of people in the city proper at 2,853,114, while suburban populations continue to grow, with estimates at 9,785,747 for the combined city and suburbs. Ethnic groups LGBT population Chicago has one of the largest LGBTQ+ populations in the United States. In 2015, roughly 4% of the population identified as LGBTQ+. Since the legalization of same-sex marriage in the State of Illinois in 2013, over 10,000 same-sex couples have wed in Cook County alone. Religion Christianity is predominant among the city's population who worship (71%). The Chicago metropolitan area also includes adherents of Islam, Buddhism, Hinduism, Jainism, Sikhism, and the Baháʼí Faith,