Maine has once again recorded the highest housing vacancy rate in the United States, but the numbers reveal a very different story than many people might expect.

According to a new LendingTree analysis of the U.S. Census Bureau's 2023 American Community Survey, 21.09% of Maine's 746,552 housing units are classified as vacant, totaling approximately 157,467 homes. While that figure appears alarming at first glance, it does not mean one in five homes is abandoned or available for purchase.

Instead, Maine's ranking is largely driven by its exceptionally high number of seasonal and vacation properties. Under the Census Bureau's methodology, any home that is not occupied as a primary residence is considered vacant. That includes coastal cottages, lake houses, hunting cabins, ski homes, second residences, timeshares, homes awaiting new owners after a sale, and rental properties between tenants.

As a result, Maine has ranked first in the nation for housing vacancy in 13 of the past 14 years, not because of a lack of demand, but because it has the highest concentration of seasonal homes per capita in the country. Approximately 19% of the state's housing stock consists of vacation or seasonal properties, significantly inflating its overall vacancy rate.

Once those seasonal homes are removed from the equation, the picture changes dramatically.

According to reporting by the Bangor Daily News, Maine's non-seasonal vacancy rate falls to roughly 2%, well below the level considered healthy for a balanced housing market. Housing economists generally view a vacancy rate of around 5% as providing enough available homes for buyers and renters while maintaining market stability.

That reality helps explain why Maine continues to face a housing shortage despite appearing to have the nation's highest number of vacant homes.

The state's year-round housing supply remains extremely limited, particularly in southern Maine and communities surrounding Portland, where demand has consistently outpaced new construction. Homebuyers continue to face limited inventory, while renters encounter low vacancy rates and rising housing costs across many markets.

The pandemic further intensified those pressures as remote workers relocated from larger metropolitan areas, including Boston and New York, increasing demand in communities that had historically been more affordable. At the same time, many seasonal homes were converted into full-time residences, reducing the already limited supply of vacation properties available for local buyers.

Although Maine's overall housing vacancy rate declined by 0.70 percentage points from 2022 to 2023, the improvement does little to change conditions for year-round residents. State officials estimate Maine still needs tens of thousands of additional homes over the coming years to meet current and future demand, prompting continued investments in affordable housing, zoning reform, and policies aimed at accelerating residential construction.

For buyers, sellers, and real estate professionals, the latest rankings serve as a reminder that headline statistics rarely tell the full story. Maine may appear to have more vacant homes than any other state, but most of those properties were never part of the year-round housing market. Instead of signaling an oversupply, the data underscores the unique challenge facing the state: balancing one of the nation's largest seasonal housing markets while continuing to address a persistent shortage of homes for the people who live and work in Maine year-round.