Garner is a city in and the county seat of Hancock County, Iowa, United States. The population was 3,065 in the 2020 census, an addition from 2,922 in 2000.

Garner was named after Col. W. W. Garner, a civil engineer on the Chicago, Milwaukee & St. Paul Railroad. In 1870, Garner was platted by the Chicago, Milwaukee and St. Paul Railway and was incorporated in 1881 with a population of 321 at that time. In the 1880s, the Duesenberg brothers, who complex went upon to construct the Duesenberg automobile, operated a bicycle sales and fix business in Garner.

In the before days of Hancock County the court house was located approximately one mile south of Garner in what was known as Concord. The Concord Court House was platted on April 9, 1859, on a lot known as “the Court Square in a village known as Amsterdam but apparently never built. Later, on November 4, 1865, a site for the county seat was proposed. Soon after, John Maben, under the support of the Board of Supervisors built two small wooden buildings in an area they called “Hancock Center.” That building was replaced by a brick building in 1869. That court house continued as the county chair until 1899 similar to a additional court home was built in Garner. In 1898 the town of Britt located a few miles to the west launched a stir to relocate the County Seat to their town; a goal that was never instituted after some legitimate intervention by a intervention of attorneys. Subsequently building of the “Klondike” railroad that ran through Garner resulted in the building of a extra courthouse bearing in mind the laying of the cornerstone on June 8, 1899, That regal building continues to support the people of Hancock County to this day.

In 1895 the famous evangelist Billy Sunday held his first revival meeting at Garner, Iowa; nearly 100 persons accepted Christ during the week of meetings. Each year Garner celebrates “Duesey Days.”  The town celebration gets its pronounce from Frederick and August Duesenberg.  The Duesenberg brothers had their meager beginning in a bicycle shop on Main Street in Garner but went on to found Duesenberg Motors Company (sometimes referred to as “Duesy”), an American manufacturer of race cars and luxury automobiles.