Coulter is a city located in Franklin 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 2.5 square miles (6.0 km²) and sits at an elevation of 1240 ft. With a population of approximately 262 residents, Coulter offers a peaceful, rural atmosphere.
The town's population is composed of about 53.44% males and 46.56% females, and it has a population density of 106.94 people per square mile (41.29/km²). Coulter lies at a latitude of 42.73 and a longitude of -93.37, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (0%), followed by English (9.2%), German (29%), and Scotch-Irish (5.7%) heritage. The town is identified by the ZIP code 50431.