[11] The climate in this area is characterized by hot, humid summers and generally cold winters.

[12] The 2020 United States census[14] counted 5,573 people, 1,939 households, and 1,233 families in Tonganoxie.

There were 2,125 housing units at an average density of 524.7 per square mile (202.4/km2).

26.3% of households consisted of individuals and 13.3% had someone living alone who was 65 years of age or older.

There were 1,973 housing units at an average density of 539.1 per square mile (208.1/km2).

23.8% of all households were made up of individuals, and 9.9% had someone living alone who was 65 years of age or older.

There were 1,032 housing units at an average density of 329.0 per square mile (127.0/km2).

22.9% of all households were made up of individuals, and 11.6% had someone living alone who was 65 years of age or older.

The community is served by Tonganoxie USD 464 public school district.

[citation needed] Peruvian Connection is based in Tonganoxie.

In September 2017, Tyson Foods cancelled plans to build a $320,000,000 chicken processing plant in Tonganoxie after objections from local residents.

The city mayor along with five council members are elected at-large and serve four-year terms.