Marshalltown Area Chamber Of Commerce 709 South Center Street P.O. Box 1000 Marshalltown, IA 50158  USA Phone: (641) 753-6645  Official Website  Find Local Businesses The Marshalltown Area Chamber of Commerce is a 110-year old organization of businesses and individuals working to improve the quality of life and to promote the economic wellbeing of our community through leadership, commitment and participation.

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