Denver is a city in Bremer County in the U.S. state of Iowa.

Denver was originally called Jefferson City, but after the Star Mail Route, a mail service provided to towns having no federal service, was established, the town changed its name.

When a federal post office was established in 1863, the name was changed to Denver.

[6] As of the census of 2020,[8] there were 1,919 people, 751 households, and 514 families residing in the city.

Hispanic or Latino persons of any race comprised 1.3% of the population.

As of the census[9] of 2010, there were 1,780 people, 701 households, and 504 families living in the city.

23.8% of all households were made up of individuals, and 12.9% had someone living alone who was 65 years of age or older.

As of the census[10] of 2000, there were 1,627 people, 648 households, and 476 families living in the city.

24.4% of all households were made up of individuals, and 14.7% had someone living alone who was 65 years of age or older.