Posted on February 18, 2019 February 18, 2019 by WebsiteYellowPages.com Mason City City Hall 1 2 3 4 50.000 LocationsIowa Bookmark Contact Information Business Name Mason City City Hall Address 10 1st St NW, Iowa 50401-3224 Phone Number 6414235369 Fax Number 6414213600 Website http://www.masoncity.net Post navigationPrevious post: Subway Sandwiches & SaladsNext post: US Post Office