Rockford is a city in Winnebago County in the U.S. state of Illinois, in far northern Illinois. Located on the banks of the Rock River, Rockford is the county seat of Winnebago County (a small portion of the city is located in Ogle County). The largest city in Illinois outside of the Chicago metropolitan area, Rockford is the third-largest city in the state and the 171st most populous in the United States. According to 2010 U.S. Census Data, the City of Rockford had a population of 152,871, with an outlying metropolitan area population of 348,360. The City of Rockford’s population is 147,051 as of 2017, down 4.1% since 2010.
According to the 2010 census, Rockford has an area of 61.949 square miles (160.45 km), of which 61.08 square miles (158.20 km) (or 98.6%) is land and 0.869 square miles (2.25 km) (or 1.4%) is water. Neighboring communities that border Rockford, and are considered an integral part of the Rockford metro area, are the cities of Loves Park, Machesney Park, Belvidere, and the villages of Winnebago, Roscoe, Rockton, Poplar Grove, New Milford, and Cherry Valley.
Also of note, South Beloit, Illinois and Beloit, Wisconsin are part of this continuous urban area that stretches for approximately 30 miles along the Rock River from the Chicago Rockford International Airport north to the Southern Wisconsin Regional Airport. Rockford is approximately 85 miles west-northwest of Chicago, and 70 miles south-southeast of Madison.
As of the 2010 census, there were 152,871 people and 66,700 households. Rockford is in the center of its namesake metropolitan area. The racial makeup of the city was 65.1% White (58.4% Non-Hispanic white), 20.5% African American, 0.4% Native American, 2.9% Asian, 0.01% Pacific Islander, 7.5% from other races, and 3.6% from two or more races. Hispanic or Latino of any race were 15.8% of the population.
The median income for a household in the city was $55,667, and the median income for a family was $65,465. Males had a median income of $37,098 versus $25,421 for females. The per capita income for the city was $19,781. 14.0% of the population and 10.5% of families were below the poverty line. 19.6% of those under the age of 18 and 8.0% of those 65 and older were living below the poverty line.
In the late 1950s, Rockford surpassed Peoria as the second largest city in Illinois by population, holding onto that position into the 21st century. In 2003, the status was changed as it was overtaken by Aurora after the results of a special census held by the latter city (as the two cities were not counted together, a direct comparison was not possible until the national census in 2010).
Like many other Rust Belt and midwestern cities, Catholics make up Rockford’s largest religious group. According to 2010 figures, 20% of Winnebago County residents are Catholic, 19% are Evangelical, 10% are Mainline Protestant and 48% belong to a non-listed faith or have no religion. The Roman Catholic Diocese of Rockford, several large evangelical and non-denominational churches, and several Lutheran and other Mainline Protestant congregations serve Rockford’s Christian community. Rockford’s Jewish community is served by a synagogue, the Muslim community by a mosque, the Sikhs by a temple, and its Buddhist community is served by two houses of worship.