Springfield is a city in Lane County, Oregon, United States. Located in the Southern Willamette Valley, it is within the Eugene-Springfield Metropolitan Statistical Area. Separated from Eugene to the west, mainly by Interstate 5, Springfield is the second-most populous city in the metropolitan area after Eugene. As of the 2010 census, the city has a total population of 59,403.
According to the United States Census Bureau, the city has a total area of 15.75 square miles (40.79 km), of which, 15.74 square miles (40.77 km) is land and 0.01 square miles (0.03 km) is water.
The McKenzie River forms the northern city limits.
As of the census of 2010, there were 59,403 people, 23,665 households, and 14,737 families residing in the city. The population density was 3,774.0 inhabitants per square mile (1,457.1/km). There were 24,809 housing units at an average density of 1,576.2 per square mile (608.6/km). The racial makeup of the city was 85.9% White, 1.1% African American, 1.4% Native American, 1.3% Asian, 0.3% Pacific Islander, 5.2% from other races, and 4.8% from two or more races. Hispanic or Latino of any race were 12.1% of the population.
There were 23,665 households of which 33.2% had children under the age of 18 living with them, 40.9% were married couples living together, 15.2% had a female householder with no husband present, 6.2% had a male householder with no wife present, and 37.7% were non-families. 27.9% of all households were made up of individuals and 9.2% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.00.
The median age in the city was 34.5 years. 24.3% of residents were under the age of 18; 10.1% were between the ages of 18 and 24; 29% were from 25 to 44; 25% were from 45 to 64; and 11.6% were 65 years of age or older. The gender makeup of the city was 49.0% male and 51.0% female.