Marquette is a city located in Clayton 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 1.2 square miles (3.0 km²) and sits at an elevation of 640 ft. With a population of approximately 421 residents, Marquette offers a peaceful, rural atmosphere.
The town's population is composed of about 47.74% males and 52.26% females, and it has a population density of 345.08 people per square mile (133.24/km²). Marquette lies at a latitude of 43.04 and a longitude of -91.18, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (5%), followed by English (7.8%), German (38.2%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 52158.