Boats and brick buildings along a New England harbor

Cumberland County · Coastal city

Portland

Maine’s most populous city occupies a peninsula on Casco Bay, where a working harbor, layered civic history, distinct neighborhoods, and regional institutions meet.

City overview

A peninsula shaped by water and change

Portland is in Cumberland County. The settlement dates to 1632, and the community was incorporated as a town on July 4, 1786, from part of Ancient Falmouth. Portland became a city on March 26, 1833.

The peninsula was known by an Indigenous name recorded as Machegonne and in several variant spellings. Fannie Hardy Eckstorm interpreted the name as “shaped like a great knee,” a reference to the peninsula’s form.

Changes around the early community eventually produced Cape Elizabeth, Westbrook, and Stroudwater. Deering was separated from Westbrook in 1871, became a city in 1889, and was annexed by Portland ten years later.

Portland at a glance

Its large population, legal and financial services, cultural institutions, transportation connections, and Old Port district make Portland the center of Maine’s largest metropolitan area. It is also the county seat of Cumberland County.

Historic brick waterfront buildings beneath a dramatic coastal sky

Historical outline

Destruction, rebuilding, and statehood

Portland endured repeated disruption, including destruction during King Philip’s War in 1676, a British naval bombardment in October 1775, and the major fire of 1866.

1775
The city was burned during a British naval bombardment. Sources differ on the date; the Library of Congress places it on October 18.

1819–1827
Portland hosted the 1819 state constitutional convention and served as Maine’s capital from 1820 until facilities in Augusta were ready in 1827.

1866
The July 4 fire destroyed roughly one-third of Portland, including city hall and much of the business district, leaving thousands without homes.

Economy & movement

A regional hub on land and sea

Portland Harbor remains a working waterfront supporting freight, fisheries, passenger travel, and recreational boating. Ferries connect the mainland with the Casco Bay islands.

On land, air, bus, and passenger rail connections reinforce Portland’s role as a transportation center. Historically, manufacturing, railroads, construction, shipping, and maritime work supported a diverse urban economy.

Working waterfront

Commercial shipping, fisheries, ferries, and seasonal boating share Casco Bay.

Regional services

Legal, financial, medical, cultural, and educational institutions serve communities beyond the city.

Transportation

Air, bus, rail, ferry, and highway routes meet in and around Portland.

Old Port

Historic commercial buildings frame a district known for dining, retail, and waterfront access.

Harbor cranes and industrial waterfront beside blue water

Woodland trail through tall trees and green undergrowth

Neighborhoods & nature

Many local identities within one city

Portland’s neighborhoods include Back Cove, Bayside, Deering Center, East Bayside, East Deering, India Street, Libbytown, Munjoy Hill, Nason’s Corner, North Deering, Parkside, Peaks Island, Riverton, Stroudwater, the University area, West End, Western Promenade, and Woodfords–Oakdale.

Nearby island communities and places include Great Diamond Island, Little Diamond Island, and Long Island.

Fore River Sanctuary
Woodland, wetland, and trail environments offer habitat for birds and a mix of hardwoods, hemlock, and white spruce. Its trail network passes Portland’s only waterfall.

Culture & civic memory

Landmarks, institutions, and public life

Portland’s built environment records periods of maritime commerce, rebuilding, civic expansion, arts, education, and neighborhood development.

Historic city buildings along a walkable urban street — **Historic Portland**
The city contains a substantial collection of civic, commercial, and residential landmarks.

Visitors viewing artwork in a bright museum gallery — **Arts and museums**
Cultural institutions contribute to Portland’s regional role.

Ornate historic theater auditorium with rows of seats — **Performing arts**
The Art Deco State Theatre opened in 1929; Portland Stage is another part of the city’s theater landscape.

The city’s historic landmarks include Victoria Mansion, the memorial in Monument Square, and the residence of Henry Wadsworth Longfellow. Higher education has included the Maine College of Art and the University of Southern Maine.

Portland also appeared in the post–World War II travel guide known as the “Green Book.” Its Thomas House Tourist Home served African American travelers during segregation, when many accommodations did not.

People connected to Portland

Public service, architecture, and letters

Follow individual entries to explore lives connected to Portland and their wider roles in Maine and national history.

Selected bibliography

Sources for deeper research

Historical studies, municipal records, preservation inventories, and local histories provide additional context for Portland’s development.

Cole, Ronald F. Music in Portland, Maine, From Colonial Times Through the Nineteenth Century. 1975.

Connolly, Michael Coleman. The Irish Longshoremen of Portland, Maine, 1880–1923. 1988.

Flaherty, Paul Arthur. The Effect of the Civil War upon Portland, Maine. 1966.

Gould, William. Portland in the Past: With Historical Notes of Old Falmouth. Heritage Books, 1997; reprint of the 1886 edition.

Historic Towns of New England. G. P. Putnam’s Sons, 1898.

Lovejoy, Myrtle Kittridge. This Was Stroudwater: 1727–1860. 1985.

Moulton, Augustus Freedom. Portland by the Sea: An Historical Treatise. 1926.

Moulton, John K. An Informal History of Four Islands: Cushing, House, Little Diamond, Great Diamond. 1991.

Murray, Constance Carolyn. Portland, Maine and the Growth of Urban Responsibility for Human Welfare, 1830–1860. 1960.

Portland Historic Resources Inventory, 1976. Maine Historic Preservation Commission, 1976.

Scontras, Charles A. Two Decades of Organized Labor and Labor Politics in Maine 1880–1900. 1969.

Willis, William. The History of Portland, from 1632 to 1864. Bailey & Noyes, 1865.

FAQ

Understanding Portland

Concise answers about the city’s geography, historical role, and connections.

Where is Portland?

Portland is a coastal city in Cumberland County. Much of its historic center occupies a peninsula extending into Casco Bay.

When did Portland become a city?

Portland became a city on March 26, 1833. It had been incorporated as a town on July 4, 1786.

Was Portland once Maine’s capital?

Yes. Portland served as the state capital from 1820 until 1827, when facilities in Augusta were ready.

Why is Portland Harbor important?

It is a working waterfront used by commercial shipping, fisheries, ferries, passenger vessels, and recreational boats. It also connects the mainland with Casco Bay islands.

Which islands are connected with Portland?

Connected island entries include Peaks Island, Great Diamond Island, Little Diamond Island, and Long Island.

Where can I explore Portland’s historic sites?

The Portland historic register entry connects readers with notable buildings, districts, residences, and civic landmarks.

Portland

A peninsula shaped by water and change

Portland at a glance

Destruction, rebuilding, and statehood

A regional hub on land and sea

Working waterfront

Regional services

Transportation

Old Port

Many local identities within one city

Landmarks, institutions, and public life

Public service, architecture, and letters

Early public figures

Politics and law

Architecture and Congress

Continue exploring Portland

Places nearby

Portland places

History and service

Sources for deeper research

Understanding Portland