If you spend enough time around Coos Bay, the name “Marshfield” starts appearing in places that can confuse newcomers. Historic references, old newspapers, buildings and family stories use it because Coos Bay was not always called Coos Bay. Until 1944, the city’s official name was Marshfield.
Marshfield came first
City planning documents say the community was established in 1853 and named Marshfield after the Massachusetts hometown of an early founder. Marshfield incorporated in 1874, becoming an important commercial center on the bay.
The wider Coos Bay area grew around several distinct communities, including Empire, North Bend, Eastside and Marshfield. Coal mining, timber, shipping and later rail and highway connections helped shape the region.
Why change the name to Coos Bay?
By the twentieth century, “Coos Bay” was already the geographic name people associated with the larger body of water and the region. In 1944, voters considered a broader consolidation involving Marshfield, North Bend and Empire. That consolidation failed, but Marshfield itself officially changed its name to Coos Bay that year.
The larger city continued to grow through later mergers. Empire joined Coos Bay in 1966, and Eastside merged with the city in 1983.
You can still see Marshfield in modern Coos Bay
The old name did not vanish from local memory just because the municipal name changed. Central Coos Bay occupies much of the original Marshfield core. Historical streets, commercial buildings and institutions grew from that earlier city.
The Marshfield Sun Building is one of the most tangible reminders. City historical resources identify it as a significant local landmark tied to the newspaper history of the community.
Downtown changed before the name did
Coos Bay’s central district had already been reshaped by a major fire in July 1922, which destroyed much of the wood-frame development along Front Street. The downtown business center gradually shifted inland. So by the time Marshfield became Coos Bay in 1944, the city had already been through decades of physical and economic change.
Why the old name is worth knowing
Knowing the Marshfield name makes local history easier to follow. When an old photograph, newspaper clipping or family account says Marshfield, it is often talking about the same downtown area people now call Coos Bay.
It also explains why the South Coast does not fit neatly into single-town stories. Coos Bay and North Bend remain separate cities, while Empire and Eastside became part of Coos Bay. The communities are connected by the bay, but each carries its own history.
