According to our records, this business is located at 6924 Columbus St. in New Vienna (in Dubuque County), Iowa 52065, the location GPS coordinates are: 42.543669 (latitude), -91.112468 (longitude). Willenborg Ag Service is categorized under Seeds and Bulbs (SIC code 5261). Known organization owner is Dennis Willenborg. Current estimates show that the unit has a sales volume of $135,000 and staff of approximately 1 worker. You can contact the company by phone at (563) 921-4275; the following fax number is also provided: (563) 921-4305.