The Port of Dubuque Marina

Port of Dubuque Marina
The Port of Dubuque Marina is a 70 slip transient marina in downtown Dubuque, Iowa, located at mile 579.4 of the upper Mississippi River inside the protected Ice Harbor. Guests can spend a day, night, or a few hours enjoying the many downtown and Port of Dubuque attractions.  

The National Mississippi River Museum and Aquarium, the Grand Harbor Resort and Waterpark, the Diamond Jo Casino and Stone Cliff Winery are a few of the many attractions you will find along the scenic Mississippi Riverwalk, which starts at the Marina's door and leads you through Dubuque's Art on the River exhibit on your way to the historic Star Brewery and Shot Tower.

Dock are available by the hour or overnight, reservations are accepted for up to 14 consecutive days. Reservation includes water and 30 or 50 amp electrical connection for boats up to 100'.

A full service fuel dock with gas and diesel fuels and sanitary pump-out is located within the marina for easy access. The Port of Dubuque Marina docks and shower suite have secure access for boaters.

The Port of Dubuque Marina convenience store carries a selection of boating essentials such as supplies, water, ice cream, beer and ice, in addition to the little things our guests might have left behind.  Our friendly staff will be more than happy to provide you with area tourism information to complete your stay.

Due to the location of the Marina, there is Restricted Visibility when entering or exiting through the flood gates. Please adhere to the following Restricted Visibility Sound Signals when communicating with other vessels:

One prolonged blast at intervals of not more than two minutes is the signal used by power-driven vessels when underway.
One prolonged blast plus two short blasts at intervals of not more than two minutes is the signal used by sailing vessels.

Port of Dubuque Aerial


  1. Port of Dubuque Marina
    450 East 3rd Street

    Dubuque, IA 52001

    Phone: 563.582.5524

    Latitude: 42.4942
    Longitude: -90.6579

    We also monitor Marine Radio Channels 16 & 68.

    Facilities Supervisor
    Position Vacant - Tentatively Dan Kroger

    Facilities Supervisor, Port of Dubuque Marina
Reserve a slip
Dubuque Port

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