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 the U.S. Highway 52 route. The bridge leads to Sabula, Iowa, which is across the river from Savanna. U.S. Highway 52 goes through Savanna.
Savanna has produced several notable natives. These include "America's Waltz King" Wayne King, professional wrestler Tommy Treichel, guitarist Billy Zoom (Tyson Kindell), and former NASA astronaut Dale Gardner.
Some of the land is being redeveloped. One of the most controversial redevelopment projects was the building of a medium security prison on the depot land. Instead, the Thomson Correctional Center was constructed several miles south of Savanna, just outside of the town of Thomson, IL.Which to this day remains empty but may be opened soon.
Savanna is located at (42.090069, -90.140050).
According to the United States Census Bureau, the city has a total area of 2.7 square miles (7.0 km²), of which, 2.6 square miles (6.8 km²) of it is land and 0.1 square miles (0.2 km²) of it (3.33%) is water.
There were 1,558 households out of which 25.6% had children under the age of 18 living with them, 42.3% were married couples living together, 11.2% had a female householder with no husband present, and 43.1% were non-families. 38.3% of all households were made up of individuals and 19.4% had someone living alone who was 65 years of age or older. The average household size was 2.21 and the average family size was 2.94.
In the city the population was spread out with 23.7% under the age of 18, 7.3% from 18 to 24, 24.6% from 25 to 44, 22.2% from 45 to 64, and 22.3% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 89.2 males. For every 100 females age 18 and over, there were 86.4 males.
The median income for a household in the city was $27,180, and the median income for a family was $38,255. Males had a median income of $28,125 versus $20,954 for females. The per capita income for the city was $15,150. About 14.2% of families and 16.7% of the population were below the poverty line, including 27.0% of those under age 18 and 6.8% of those age 65 or over.
An annual garden walk takes place in July showcasing some of the area's finest gardens, which benefit from the areas fertile Mississippi River soil.
The downtown area has revived some since the mid-1990s closing of the Army Depot with the addition of new ornamental lighting to complement the late 1800s buildings. The city is trying to lure more shops to the main street in hopes of becoming more of a weekend destination, like nearby Galena.
Savanna is known as "The Metropolis" of Carrol County because it contains the county's only stop light.