Savanna is a city in Carroll County, Illinois, United States. The population was 2,945 at the 2010 census, down from 3,542 in 2000. Savanna is located along the Mississippi River at the mouth of the Plum River. Going from north to south, the second automobile bridge between Iowa and Illinois is located just north of Savanna, and is part of U.S. Route 52. The bridge leads to Sabula, Iowa, which is across the river from Savanna. Savanna is also served by two major railroads, the Burlington Northern and Santa Fe Railway (BNSF) Railway Company and the (CP) Canadian Pacific. Savanna also has a small airport, The Tri-Township Airport (KSFY).
Savanna is located at 42°5′24″N 90°8′24″W / 42.09000°N 90.14000°W / 42.09000; -90.14000 (42.090069, -90.140050).
According to the 2010 census, Savanna has a total area of 2.714 square miles (7.03 km), of which 2.62 square miles (6.79 km) (or 96.54%) is land and 0.094 square miles (0.24 km) (or 3.46%) is water.
As of the 2010 U.S. Census, the total population was 2945 people. The racial makeup of the city was 94.6% White, 1.7% African American,
0.4% Native American, 0.1% Asian, 0.1% Pacific Islander, 1.5% from other races, and 1.7% from two or more races. Hispanic or Latino of any race were 5.6% of the population.
Total Housing Units were 2,355, out of which, 15.8% were vacant. 38.5% were built before 1939. There were 1,320 owner occupied housing units. 24.5% had a value of less than $50,000, 38.9% were valued from $50,000 – $99,000, 21.2% were valued from $100,000 – $149,000, and 15.0% were valued at $150,000 or more.
There were 1,948 households and 1,154 families residing in the city, out of which 23.2% had children under the age of 18 living with them, 43.3% were married couples living together, 10.6% had a female householder with no husband present, and 40.8% were non-families. 34.4% of all households were made up of individuals and 15.9% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.84.
The age groups within the population were 23.5% under the age of 19, 4.8% from 20 to 24, 24.6% from 25 to 44, 29.6% from 45 to 64, and 20.5% who were 65 years of age or older. The median age was 45.1 years. Males made up 50.2% of the total population while females made up 49.8%.
The median income for a household in the city was $35,050 and the median family income was $51,848. About 15.0% of families and 17.4% of the population were below the poverty line, including 35.0% of those under age 18 and 5.0% of those age 65 or over.