Slip rates are advertised in one number and paid in another. The $18/foot figure you see in a marina listing is usually the base rent — before electricity, before the liveaboard surcharge, before tax, and before the pump-out fee that shows up as a separate line every time you use it. Understanding what a slip actually costs requires knowing what the base rate doesn't cover, and knowing how much rates vary by geography. A 40-foot boat costs roughly $850/month to slip in a mid-tier Gulf Coast marina and $2,100/month in parts of Southern California. Both figures can be accurate — they just reflect entirely different markets.
East Coast: Wide Range, Strong Regional Variation
On the Mid-Atlantic and New England coast, slip rates generally run $15–$30 per foot per month for annual agreements. Maryland harbors around the Chesapeake — Annapolis, Rock Hall, Solomons — tend to cluster in the $18–$25/ft range for annual slips on boats in the 35–45 foot range. That puts a 40-footer at $720–$1,000/month before add-ons.
New England rates track higher for prime-season demand. A well-regarded facility in Marblehead or Newport will run $25–$35/ft in season, often with a seasonal-only contract that covers May through October. Year-round slips in cold-water New England are comparatively scarce and often priced at a premium for the winter months because of the infrastructure required to keep floating docks operational in freezing conditions.
Florida's East Coast ranges from $12–$20/ft in smaller inland waterway marinas to $20–$30/ft in premium locations like Fort Lauderdale and Palm Beach. Miami and the Keys push higher — $25–$40/ft for well-positioned slips in facilities with strong amenities. Liveaboard surcharges on the Florida East Coast commonly add $150–$300/month on top of the base rate.
Gulf Coast: The Most Affordable Coastal Market
The Gulf Coast — Texas, Louisiana, Alabama, and the Florida Panhandle — offers the lowest slip rates of any US coastal region. In the Clear Lake area near Galveston Bay, reported rates for a 35-foot boat run $500–$550/month all-in, including water and electricity. That is $14–$16/ft — meaningfully below national averages — and it includes utilities that East Coast marinas typically meter separately.
Gulf Coast marinas generally face less slip demand from transient cruisers than Atlantic or Pacific facilities, which keeps prices down. The trade-off is that hurricane season (June–November) requires attention to your marina's storm plan, and some Gulf facilities require you to haul out or move the vessel during named storm watches. Check storm-plan requirements before signing an annual contract.
Florida Panhandle marinas (Pensacola, Destin, Panama City Beach) run slightly higher than Texas — typically $15–$22/ft for annual agreements. Proximity to popular cruising routes and the snowbird migration pushes winter demand in the western Florida Panhandle above what purely regional supply would suggest.
Pacific Coast: The Premium Market
California slip rates are the highest in the country and, at premium facilities, reach numbers that surprise sailors accustomed to other markets. The City of Newport Beach's Balboa Yacht Basin published 2025–2026 rates of $53.34 per foot for a 40-foot slip, $59.03 for a 50-foot slip, and $74.20 for a 75-foot slip — figures that reflect the intense demand in one of California's most congested boating markets.
Southern California broadly runs $20–$50/ft depending on location and facility quality. San Diego's Kona Kai Marina charges $30/ft for side-tie dockage. Northern California offers somewhat more accessible rates — Marina Bay in Richmond, for example, runs around $15/ft for uncovered slips. The statewide range of $9.50 to over $100/ft reflects how dramatically location, marina type, and local demand shape the number.
Pacific Northwest rates in Washington and Oregon are generally lower than Southern California. Port of Newport (Oregon) and Port of Hood River maintain published fee schedules more typical of the national average range. Seattle-area marinas run $15–$28/ft depending on facility and location.
Great Lakes: Seasonal Economics
Great Lakes slips are seasonal by necessity. Most Great Lakes marinas offer May–October or April–November agreements; year-round in-water storage is uncommon because of ice conditions. In-season slip rates run $200–$600/month for typical recreational boats — lower than coastal markets partly because the season is compressed and marinas must compete for the discretionary spending of a regional boating population rather than capturing migration-driven transient demand.
Winter storage on land — jackstands in a yard — replaces the slip cost for six months. Typical winter storage in the Great Lakes runs $40–$80 per foot for the season, with shrink-wrap adding another $15–$30/ft. A 38-foot boat might pay $500/month for an in-season slip and $1,800–$2,500 for winter storage plus wrap. Budget the annual number, not just the summer figure.
The Fees That Aren't in the Headline Rate
No matter what region you're pricing, the advertised slip rate is the starting point, not the total. Work through every line before you compare marinas:
Electricity
Some marinas include electricity in the slip rate; most do not. At metered facilities, liveaboards running air conditioning in summer or heating in winter can add $150–$300/month to the electric bill alone. Ask whether the rate is per kilowatt-hour at the meter, a flat monthly charge, or included in the base rate. The difference matters significantly over a year-long contract.
Liveaboard Surcharge
Marinas that permit liveaboards commonly charge an additional $100–$300/month above the slip rate. This is not universal — some marinas include liveaboard use in the base rate or don't allow it at all — but it's common enough that asking the question up front is necessary before the math makes sense.
Pump-Out
On-site pump-out, if charged per use rather than included in the slip fee, runs $5–$20 per pump-out. A liveaboard pumping every week or two adds $30–$120/month. Marinas that charge separately for pump-out are also telling you something about how they think about operational costs; it's worth asking what else gets billed separately.
Parking and Storage
Urban marinas frequently charge for vehicle parking — sometimes by the day, sometimes as a monthly permit. If you're liveaboard and depend on a car for groceries, a $100–$200/month parking charge on top of the slip rate adds up quickly. Ask whether one vehicle is included or whether there's a wait list for marina parking spaces.
Tax
Several states treat boat slips as taxable personal property; some charge sales tax on the slip rental. The rate and applicability vary by state. In California, Florida, and Washington, tax on marina fees is a real line item. Always ask for the total contract amount including applicable tax before signing.
Annual vs. Monthly vs. Transient Rates
Annual contracts typically carry discounts of 10–25% versus month-to-month rates for the same slip. Transient rates — charged per night for cruising visitors — run 2–4x the annual rate on a per-night equivalent basis. At many popular marinas, transient spaces are competitive on holiday weekends; at others, they're easier to get than annual slips, which may carry multi-year waiting lists.
If you're spending more than 90 nights per year at a specific marina, the annual math almost always works in your favor even accounting for periods you won't use the slip. The complication is that annual slips at desirable facilities often have wait lists — put your name on the list at any marina you're seriously considering, even before you're certain you want the slip, since you can decline when your turn comes without penalty at most facilities.