In-depth analysis

Should you buy an STR in Mackinac Island in 2026?

Yes, if a property comes available and you have the capital to operate inside the island’s logistics. Mackinac Island bans motor vehicles — all transport is horse-drawn or bicycle — and access is ferry-only from May to October (the island effectively closes from November to April when the Straits of Mackinac freeze). ADR is $288, occupancy 65%, RevPAR $187, market score 90/100. Inventory turns over slowly; expect to pay a premium when something hits the market.

Regulation: where the city stands

City of Mackinac Island STR rules:

Permissive — STR permitted with business license and Mackinac County tax remittance.
No motor vehicles — Michigan’s only ban; impacts cleaning, supply, and emergency response logistics.
Ferry seasonality — Star Line / Shepler’s operate roughly May through October; off-season access is via small plane or, briefly, ice bridge.
Accommodations tax stack around 11%.
State Park controls roughly 80% of the island — only a small fraction is privately owned.

Most STR-feasible inventory is condo-cottage product in the village near the ferry dock or the Mission Point area. Single-family homes change hands rarely.

The market by the numbers

Metric	Mackinac Island	Comparison
Avg ADR	$288	Top Midwest island
Occupancy	65%	Strong in-season
RevPAR	$187	Top tier
Market score	90/100	Exceptional

Demand: Memorial Day to Labor Day produces roughly 80% of annual revenue. The Lilac Festival (June), Fudge Festival (August), and Labor Day weekend are the premium windows. The island is closed in winter for practical purposes.

Submarkets that matter

Village (Main Street) — walking distance to ferry, restaurants, Grand Hotel; premium ADR.
Mission Point area — east side, hotel-adjacent, condo product.
Inner island residential — limited; private homes rarely on market.
Hubbard’s Annex — small cottage cluster, walking distance to village.

The 3 mistakes buyers make here

Underwriting 12 months of operation. The island operates roughly 5 months. Annualize accordingly.
Ignoring cleaning logistics. No cars means bicycle-and-cart turnover. Cleaning costs run materially higher than mainland comps.
Buying assuming new construction is feasible. Permits are rare and the Michigan Historic Preservation overlay is strict.

What to do next

Pull the City of Mackinac Island business license rules and verify operating posture.
Verify Mackinac County tax remittance setup.
Run Market Score and Comp Analyzer.
Use Year 1 Cash Needs on a 5-month operating year.

Not investment advice. Verify all regulatory and tax information with local authorities and licensed professionals before committing capital.