Marshalltown is a city in and the county seat

County seat

A county seat is an administrative center, or seat of government, for a county or civil parish. The term is primarily used in the United States....

 of Marshall County

Marshall County, Iowa

-2010 census:The 2010 census recorded a population of 40,648 in the county, with a population density of . There were 16,831 housing units, of which 15,538 were occupied.-2000 census:...

, Iowa

Iowa

Iowa is a state located in the Midwestern United States, an area often referred to as the "American Heartland". It derives its name from the Ioway people, one of the many American Indian tribes that occupied the state at the time of European exploration. Iowa was a part of the French colony of New...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The population was 27,552 in the 2010 census, an increase from the 26,009 population in the 2000 census.
Henry Anson was the first white settler to the area now known as Marshalltown. In April 1851 Henry Anson found what he called “the prettiest place in Iowa.” On a high point between the Iowa River

Iowa River

The Iowa River is a tributary of the Mississippi River in the state of Iowa in the United States. It is about long and is open to small river craft to Iowa City, about from its mouth...

 and Linn Creek Henry Anson built a log cabin.