The city is named for the hundreds of natural springs of carbonated water that are located in and around the city. The springs were well known to Native Americans and were a famous landmark along the Oregon Trail in the middle 19th century. Today the city is also known as the location of the Soda Springs Geyser, which was unleashed in 1934 when "town fathers" were looking for hot water for a "hot pool" bathing attraction. Instead they drilled into a chamber of highly pressurized carbon dioxide gas and cold water and the geyser was released. After running for weeks, and flooding the downtown area, it was capped and manually released when requested as a tourist attraction. Now it is let loose every hour on the hour by a timed release valve. Its height and volume have not decreased after many years. There are viewing platforms at either end of the travertine mound where the geyser erupts. Interpretive signs are located on the platforms explaining this phenomenon. Soda Springs is also the location of one of the Ground Observer Corps sites.
Geography
According to the United States Census Bureau, the city has a total area of, of which, is land and is water. Soda Springs experiences a continental climate with long, cold, snowy winters and very warm summers.
As of the census of 2010, there were 3,058 people, 1,204 households, and 830 families living in the city. The population density was. There were 1,393 housing units at an average density of. The racial makeup of the city was 96.4% White, 0.1% African American, 0.3% Native American, 0.3% Asian, 0.4% Pacific Islander, 1.4% from other races, and 1.2% from two or more races. Hispanic or Latino people of any race were 3.4% of the population. There were 1,204 households of which 33.4% had children under the age of 18 living with them, 56.9% were married couplesliving together, 8.4% had a female householder with no husband present, 3.7% had a male householder with no wife present, and 31.1% were non-families. 28.2% of all households were made up of individuals and 12.5% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 3.03. The median age in the city was 37.8 years. 27.4% of residents were under the age of 18; 7.1% were between the ages of 18 and 24; 22.9% were from 25 to 44; 26.2% were from 45 to 64; and 16.4% were 65 years of age or older. The gender makeup of the city was 49.7% male and 50.3% female.
2000 census
As of the census of 2000, there were 3,381 people, 1,210 households, and 905 families living in the city. The population density was 747.1 people per square mile. There were 1,505 housing units at an average density of 332.6 per square mile. The racial makeup of the city was 96.63% White, 0.03% African American, 0.09% Native American, 0.15% Asian, 0.21% Pacific Islander, 1.18% from other races, and 1.72% from two or more races. Hispanic or Latino people of any race were 2.90% of the population. There were 1,210 households out of which 40.7% had children under the age of 18 living with them, 66.1% were married couples living together, 6.5% had a female householder with no husband present, and 25.2% were non-families. 22.1% of all households were made up of individuals and 9.3% had someone living alone who was 65 years of age or older. The average household size was 2.74 and the average family size was 3.24. In the city, the population was spread out with 30.8% under the age of 18, 9.5% from 18 to 24, 26.0% from 25 to 44, 20.1% from 45 to 64, and 13.5% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 95.2 males. For every 100 females age 18 and over, there were 97.3 males. The median income for a household in the city was $40,690, and the median income for a family was $46,152. Males had a median income of $41,979 versus $21,250 for females. The per capita income for the city was $15,729. About 7.0% of families and 9.3% of the population were below the poverty line, including 8.5% of those under age 18 and 8.7% of those age 65 or over.
