$1.50/ft - $1.70/ft

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The Alton Marina

Alton, Illinois - IL, United States

Welcome to The Alton Marina

Please note this marina has a maximum height of 22' for covered docks

The Alton Marina invites you to join their incredible facility. Whether you’re planning a day trip, you’re in transit, or just spending the weekend, you’ll always feel like it’s a vacation at Alton Marina. The Harbormasters Jill & Greg and the Alton Marina staff are dedicated to making your stay at “The Finest 5-Star Marina on the Mississippi River” memorable, comfortable, and safe.

The Alton Marina is one of the friendliest marinas on the water! Slip holders love meeting and getting to know visitors. Whether you’re just looking for a place to tie up for the night, or somewhere to bed down for a couple of weeks, you’ll feel right at home here.vThe Alton Marina can accommodate vessels up to 80' in length and 25' in width with access to fantastic amenities including full floating docks and structures, private bathrooms, showers and laundry facilities, complimentary WiFi, large swimming pool and deck area, and of course a great view!

As your final fuel stop for many miles, you’ll want to top off with fresh ValvTect Diesel or Unleaded fuel at the marina's easily accessible fuel dock. Book your boat slip today on Snag-A-Slip.

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  • Gas
  • Pump-Out
  • Ice
  • Provisions
  • Security
  • WiFi
  • Diesel
  • Town Nearby
  • Parking
  • Restrooms
  • Showers
  • Floating Docks
  • Restaurant Nearby
  • Bars/Clubs Nearby
  • Swimming Pool
  • Restaurant On-Site
  • Laundry
  • Superyacht Slips


38.88763 / -90.1774

The Alton Marina

Alton, Illinois - IL, United States

$1.50/ft - $1.70/ft

List Your Slip!

Cancellation Policy: This Marina has a 24 hour cancellation policy. Please contact Snag-A-Slip or the marina at least 24 hours prior to your stay to receive a full refund.

October Cancellation Policy: This Marina has a 48 hour cancellation policy during the full month of October. If your stay is for October, please contact Snag-A-Slip or the marina at least 48 hours prior to your stay to receive a full refund.

Waterway Guide Review

Jodi on October 28th, 2023:

Vessel Name Boat Type Vessel LOA Vessel Draft
Dos Gatos Locos Power 46 ft 4.0 ft

After 3 days of anchoring and tying up, Alton Marina was a welcome stop. Took advantage of their AGLCA special and booked 10 days. Fueled up, topped off water, and pumped out . Wi-Fi was good. Bathrooms/showers were clean and appointed. Deli was great. Robert the Marina Manager was wonderful during are stay and when I was trying to make arrangements for our stay. Can not say enough about this marina. Mac's Downtown was our favorite restaurant. We would stay here again.

Waterway Guide Review

Capt on October 22nd, 2023:

Vessel Name Boat Type Vessel LOA Vessel Draft
WhatYachtToDo Power 50 ft 4.5 ft

12 Oct 23 Sam at GreatLoopAcademy.com here on a training trip with a 430 Mainship with a 3' 8" draft. Stopped here for a rest, pump out, fuel, and water. Stayed two days due to weather and visited Fast Eddie's of course. Nice marina, well run by Rob. Snack bar is great but limited hours this time of year. No courtesy car, limited rental choices and hit/miss Uber, but town is well within walking distance. Home of Miles Davis. Statue in the town square area. Good T-Mobile and Verizon service. Sam from WhatYachtToDo ?

Waterway Guide Review

Kevin on October 20th, 2023:

Vessel Name Boat Type Vessel LOA Vessel Draft
High Tide Power 40 ft 3.0 ft

Great stop for anything you could need ,we had generator parts delivered and walmart even delivers groceries,, friendly people everything clean and neat !! Nice walk to resturants and town

Waterway Guide Review

Tony on September 30th, 2023:

Vessel Name Boat Type Vessel LOA Vessel Draft
Dragonfly Power 26 ft 3.0 ft

Wonderful marina. Easy to book by phone. Deep water (10 feet) and covered slips on transient dock, which is close to clean, private bathrooms. Electric, water, fuel, small deli and convenience store on site. They were short-staffed and doing water system maintenance during our stay, but were very helpful and customer-focused. Close to town and the Mel Price Lock. Call the lock before you leave, if southbound. We had a 4-hour wait and it was nice to do most of that at the marina.

Waterway Guide Review

Anthony on June 6th, 2023:

Vessel Name Boat Type Vessel LOA Vessel Draft
Event Horizon Power 63 ft 5.0 ft

Stayed one night on a T head. just a little under staffed but courteous and dock hands try very hard. Still learning but great attitudes. We stayed on the "T" at J dock power was mediocre at best (98 Volts)
So be aware of that. Jill the Harbour Master is awesome. Only thing I would say is be prepared for a 3% add to credit card for fuel etc. Not unexpected. overall great place. Handled our 5 foot draft ok mostly saw 6-10 ft.

Waterway Guide Review

Capt on December 23rd, 2022:

Vessel Name Boat Type Vessel LOA Vessel Draft
Do It Now Power 32 ft 2.5 ft

I chose Alton Marina as a place to park my boat for the month of November 2022 while I went home to take care of some business. I got a covered slip in the long term tenant area. I stayed on the boat 3 days before I went home and 3 days after returning, before continuing my trip south on the Loop.

Unfortunately, the water and pumpout had been shut off prior to our arrival for the winter. This meant that the bathrooms with showers were not available and there was no water at the boat. The only restrooms were at the marina office, which was quite a walk from where the boat was parked. The laundry room (in the same building) was open and available. The deli/shop was closed for the season.

The place is very dog friendly, especially that time of year with hardly anyone around.

The marina is walking distance to town, but it isn't a short walk. Not many shops or restaurants were open during our stays. We did walk to a small local market in town -- it was at least a mile away. There was no courtesy car. I wound up renting a car before my departure and then again on my return so I had more flexibility for provisioning and making airport runs. There's a Walmart outside of town that sells just about anything you might need.

The main benefit of this stop -- at least to me -- was its proximity to St. Louis and its airport.