Lockport is a city in Will County, Illinois, United States, located 30 miles southwest of Chicago. Per the 2020 census, the population was 26,094. The city was incorporated in 1853. It is situated along the Illinois and Michigan (I&M) Canal, and was the headquarters of the canal when the canal was operating. A section of the canal runs through Lockport, including the remains of the canal's Lock No. 1 from which the town received its name. The canal right-of-way is now the Illinois and Michigan National Heritage Corridor. Geography Lockport is located on the east bank of the Des Plaines River just north of Joliet. The village of Lemont is about two miles to the north along the river. Demographics 2020 census Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race. 2000 Census Although the population was 15,191 at the 2000 census (and then estimated it would be 22,161 in 2005), a special census of 2003 counted 25,191 people, 13,599 households, and 12,137 families residing in the city. The population density was . There were 5,835 housing units at an average density of . The racial makeup of the city was 95.82% White, 1.11% African American, 0.22% Native American, 0.75% Asian, 0.01% Pacific Islander, 0.94% from other races, and 1.15% from two or more races. Hispanic or Latino people of any race were 4.34% of the population. There were 8,599 households, out of which 38.5% had children under the age of 18 living with them, 60.9% were married couples living together, 9.7% had a female householder with no husband present, and 26.1% were non-families. 20.8% of all households were made up of individuals, and 6.9% had someone living alone who was 65 years of age or older. The average household size was 2.71 and the average family size was 3.17. In the city, the population was spread out, with 28.2% under the age of 18, 7.7% from 18 to 24, 36.1% from 25 to 44, 18.0% from 45 to 64, and 10.1% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 96.8 males. For every 100 females age 18 and over, there were 94.1 males. The median income for a household in the city was $72,231, and