Practical Living on the Casco Bay Islands: Ferries, Government, Water, and Getting Groceries

The Ferry Situation Is Different on Every One of These Islands

Casco Bay Lines is the common thread, but the actual boat ride varies a lot island to island. Long Island's passenger run typically takes 30 minutes to an hour depending on route and stops, and a separate car ferry serves the island by reservation with no fixed schedule -- so getting a vehicle to or from Long Island takes advance planning, not a walk-on ticket. Great Diamond Island is served by a Diamond Cove stop, and Little Diamond Island is also reached by Casco Bay Lines. Cliff Island has the longest run of the group, commonly cited at roughly 60 to 120 minutes one-way depending on route and freight stops, with five daily round trips operating year-round; a barge ramp added in 2008 supports freight delivery there.

Chebeague Island is the one genuinely distinct case: it has two separate ferry operators, not one. The Chebeague Transportation Company runs a short, roughly 15-minute passenger route from Cousins Island in Yarmouth to the island's Stone Wharf, plus a vehicle and freight barge April through November by reservation. Casco Bay Lines separately runs a longer, roughly 60-to-90-minute mail-boat route from downtown Portland to Chandler's Cove wharf. That means a Chebeague resident has a real choice of two different routes to two different mainland points, depending on whether Portland or Yarmouth is the actual destination -- worth understanding before assuming there's a single boat schedule to plan a life around.

Who Actually Governs You: Your Own Town, or the City of Portland

Municipal status is not the same across these five islands, and it determines which government office, school system, and assessor a resident actually deals with. Long Island and Chebeague Island are each their own separate incorporated towns -- Long Island seceded from the City of Portland in 1993 over a tax-revaluation dispute, and Chebeague seceded from the town of Cumberland in 2007, largely to protect its own small elementary school. Both islands run their own town offices, and Chebeague has its own on-island elementary school (described as a two-room schoolhouse serving pre-K through fifth grade); Long Island maintains its own Long Island School as well, though this page can't confirm its current grade range.

Great Diamond Island, Little Diamond Island, and Cliff Island are all governed by the City of Portland -- none of the three has ever been a separate town. That means residents there deal with Portland's municipal offices, Portland's assessor, and Portland's school system rather than a dedicated island town office. Cliff Island does maintain its own one-room school on-island for pre-K through fifth grade despite being part of Portland; a 2020 Island Institute profile put enrollment at roughly six students, a figure small enough that it should be re-verified as current before anyone relies on it. Great Diamond and Little Diamond, given their tiny and heavily seasonal populations, were not found to have any dedicated on-island school -- families there should expect Portland's school system and a ferry commute for children of any age, not an on-island option.

On both Chebeague and Cliff Island, students past fifth grade commute daily by ferry to mainland Portland-area schools -- a real, structural fact of daily family life on these islands that a mainland family relocating here should plan around directly with the relevant school district rather than assume works itself out.

Little Diamond Island's Winter Water Shutoff Is a Genuine Limit, Not a Curiosity

Little Diamond Island's water supply is shut off in winter. That is not a minor seasonal inconvenience -- it is a structural reason the island functions as a seasonal, vacation-retreat community rather than a year-round neighborhood, and it is directly reflected in its tiny confirmed year-round population (as few as five residents at the 2000 Census, with more recent commercial demographic snapshots showing an even smaller number). Anyone considering Little Diamond Island as a full-time, year-round residence needs to treat the winter water situation as a hard planning constraint, not something to work around casually -- confirm the current water situation, and what winterizing or alternative water arrangements would actually require, directly with the island's water system operator and the City of Portland before assuming a property there can support year-round living.

No comparable water-shutoff issue was found for Long Island, Chebeague Island, Great Diamond Island, or Cliff Island in the research behind this page -- this appears to be a Little Diamond-specific limitation tied to its small size and largely private, seasonal-cottage character, not a bay-wide issue.

Cliff Island Has No Paved Roads: Walking, Bicycle, and Golf Cart, Not a Car

Cliff Island is the only year-round-inhabited island in this group with entirely unpaved roads, and residents get around by walking, bicycle, and golf cart rather than by car. That's a genuine, everyday practical consideration, not a scenic detail: it shapes how groceries get from the ferry landing to a house, how a delivery actually reaches a doorstep, and how mobility works for anyone who can't walk, bike, or drive a golf cart over unpaved surfaces. Anyone weighing a move to Cliff Island should think through day-to-day mobility -- getting groceries home, moving furniture or building materials, getting to a medical appointment in bad weather -- in terms of golf cart and bicycle logistics, not in terms of parking a car in a driveway.

None of the other four islands in this group were found to share Cliff Island's all-unpaved-road, no-cars character -- Long Island, Chebeague, Great Diamond, and Little Diamond all appear to have at least some vehicle use, even though ferry access still governs how a car actually gets there or back.

Groceries and Shopping: Genuinely Thin On-Island, and the Mainland Is a Boat Ride Away

Dining and retail infrastructure is thin across all five of these islands, and this page won't pretend otherwise. Chebeague Island has the fullest small roster of the group, with the Chebeague Island Inn, The Niblic at the Chebeague Island Boat Yard, and the Slow Bell Cafe. Great Diamond Island's Diamond Cove has Diamond's Edge Restaurant & Marina and the Diamond Cove General Store for basic provisions. Long Island has Byers & Sons Long Island Bakehouse and a general-goods Long Island Store, but no confirmed sit-down restaurant beyond those. Cliff Island's evident sole dining and provisioning option is the seasonal Cliff Island Store & Cafe. Little Diamond Island has no dining establishment of any kind found in the research behind this page -- consistent with its tiny, largely-vacant, private-retreat character.

The honest, practical takeaway is that on-island shopping on any of these five islands covers basics at best, not a full grocery run. A larger shopping trip, a specific brand, or anything beyond what a small general store or cafe stocks means a mainland trip via ferry -- the same logistical reality that governs mail, packages, and building materials here. That's a genuine planning factor for daily life that a mainland routine simply doesn't require, and it applies most sharply on Little Diamond and Cliff Islands, where on-island options are thinnest.

The Real, Current Cost of a Ferry-Dependent Daily Life

Because groceries, mail, medical trips, and building materials for all five of these islands move by Casco Bay Lines (and, for Chebeague, also the Chebeague Transportation Company), the ferry fare itself is effectively a recurring cost of ordinary daily life here -- and that cost is a live, unsettled issue right now. Casco Bay Lines proposed raising peak-season round-trip adult passenger fares from $14 to $17 (a 21% increase), with 30-day passes rising from $48 to $51 and off-peak daily fares from $7.20 to $8, citing rising fuel, labor, vessel-maintenance, insurance, and regulatory costs. It would have been the second passenger fare hike in three years, following a 2024 increase and a separate 2025 vehicle-fare increase.

Island residents pushed back, and hundreds filed a formal petition citing both affordability concerns and improper public notice; Maine's Office of the Public Advocate supported a state review, noting that repeated fare increases over the past three years had placed a growing financial burden on low- and moderate-income island households. On June 16, 2026, the Maine Public Utilities Commission unanimously voted to open a full, formal adjudicatory investigation into both the financial justification for the increases and the rate-setting process itself; the new fares remained in effect for the summer season while that investigation proceeded, with the PUC retaining authority to modify or reverse them. Separately, Casco Bay Lines' own current rates page lists a peak-season (April 18 through October 12, 2026) round-trip adult fare of $16.00 (child, senior, and disabled fares $8.00), and an off-peak-season (October 13, 2026 through April 16, 2027) round-trip adult fare of $8.00 (child, senior, and disabled fares $4.00) -- flat rates that apply the same across all seven served stops regardless of distance, meaning the roughly two-hour round trip to Cliff Island costs the same as a short hop closer to Portland. That $16 figure doesn't exactly match the $17 figure discussed in the proposal coverage, which likely reflects the difference between a proposed number and the adopted rate or a later adjustment -- anyone budgeting for regular ferry travel here should check the carrier's own current rates page directly rather than rely on either number as fixed.

A Real, Documented Housing Shortage Behind the Practical Picture

A July 2025 Portland Press Herald investigation into Maine's unbridged islands -- explicitly naming Chebeague, Long Island, and Cliff Island among the Casco Bay islands examined -- found a median island resident age of 56 versus 44 statewide, housing costs pushed up by wealthy outside buyers converting year-round homes to seasonal use, island construction costs roughly 30% higher than mainland costs because of barge transport and infrastructure needs, and a land supply constrained by conservation easements. That combination of an aging year-round population and a shrinking supply of homes actually available for year-round living is a real, current practical-living issue on these islands, not an abstract housing-market statistic.

Solutions being tried include modular home construction, named specifically on Chebeague and Long Island, and converting single-family homes to multi-unit rentals on Cliff Island. On Chebeague specifically, the Chebeague Island Community Association has run named affordable-housing projects for over a decade: a modular duplex at 43 School House Road, built with a $350,000 MaineHousing grant and installed in May 2012; a 2013-2014 rent-with-option-to-purchase house at 226 South Road; and a second modular duplex at 553 South Road, installed in May 2025 with tenants expected to move in during fall 2026. MaineHousing's dedicated Affordable Housing Initiative for Maine Islands has funded 49 units across 10 islands, with grants up to $840,000 per project. No comparable current, standalone housing-development story was found for Great Diamond Island or Little Diamond Island in the research behind this page -- their small, seasonal populations appear to generate less standalone coverage of this kind than Chebeague, Long Island, or Cliff Island.

What This Means Before You Decide

Put together, honestly: these five islands share Casco Bay Lines ferry access, but the practical reality of daily life differs sharply among them. Long Island and Chebeague Island are their own towns with their own schools and offices; Great Diamond, Little Diamond, and Cliff Island are all run by the City of Portland. Little Diamond's winter water shutoff makes it structurally a seasonal retreat, not a year-round option, for most buyers. Cliff Island's unpaved roads mean planning daily mobility around a bicycle or golf cart rather than a car. On-island shopping is thin everywhere in this group, so mainland trips by ferry are a routine, expected part of life rather than an exception. And the cost of that ferry dependence is genuinely in flux right now, with a live Maine PUC investigation into Casco Bay Lines' fare increases still unresolved, layered on top of a well-documented regional island-housing shortage that is pushing up construction costs and squeezing the supply of year-round homes.

None of this is offered to talk anyone into or out of any of these five islands -- it's the ordinary, sourced texture of daily life here, stated honestly and hedged plainly where the research doesn't go further. Before making a moving or purchase decision, confirm current ferry schedules and fares directly with Casco Bay Lines and, for Chebeague, the Chebeague Transportation Company; confirm municipal services and school enrollment directly with the relevant town office or the City of Portland; and confirm the water situation, road access, and any specific property's current condition directly with local officials and a local real estate professional rather than from this page. Nothing on this page is legal, financial, or relocation advice.