Lamoni is a city located in Decatur County, in the state of Iowa (IA), United States. Nestled in the West North Central division of the Midwest region, it covers an area of 3.2 square miles (8.0 km²) and sits at an elevation of 1112 ft. With a population of approximately 2,444 residents, Lamoni offers a peaceful, rural atmosphere.
The town's population is composed of about 48.24% males and 51.76% females, and it has a population density of 761.37 people per square mile (293.97/km²). Lamoni lies at a latitude of 40.62 and a longitude of -93.93, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (7%), followed by English (14.7%), German (16%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 50140.