Warren is an unincorporated

Unincorporated area

In law, an unincorporated area is a region of land that is not a part of any municipality.To "incorporate" in this context means to form a municipal corporation, a city, town, or village with its own government. An unincorporated community is usually not subject to or taxed by a municipal government...

 community in Columbia County

Columbia County, Oregon

Columbia County is a county located in the U.S. state of Oregon. It was named for the Columbia River, which forms its eastern and northern borders. As of 2010, its population was 49,351. The county seat is St. Helens.-Economy:...

, Oregon

Oregon

Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 located on U.S. Route 30

U.S. Route 30

U.S. Route 30 is an east–west main route of the system of United States Numbered Highways, with the highway traveling across the northern tier of the country. It is the third longest U.S. route, after U.S. Route 20 and U.S. Route 6. The western end of the highway is at Astoria, Oregon; the...

 north of Scappoose

Scappoose, Oregon

Scappoose is a city in Columbia County, Oregon, United States. It was named for a nearby stream, which drains the southern part of the county...

 and south of St. Helens

St. Helens, Oregon

St. Helens is the county seat of Columbia County, Oregon. It was founded by Captain H. M. Knighton, a native of New England, in 1845 as "Plymouth". The name was changed to St. Helens in the latter part of 1850 for its view of Mount St. Helens some away in Washington. The population was 10,019 at...

 on Scappoose Bay of the Columbia River

Columbia River

The Columbia River is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, Canada, flows northwest and then south into the U.S. state of Washington, then turns west to form most of the border between Washington and the state...

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Warren post office was established in 1885; it was named by local resident James Gill for his hometown of Warren, Massachusetts

Warren, Massachusetts

Warren is a town in Worcester County, Massachusetts, United States. The population was 5,135 at the 2010 census.For geographic and demographic information on the census-designated place Warren, please see the article Warren , Massachusetts.- History :...

. The post office was discontinued in 1888, but reestablished in 1890 as "Gilltown" because there was another post office named Warren in Umatilla County

Umatilla County, Oregon

Umatilla County is a county located in the U.S. state of Oregon. It is included in the 8 county definition of Eastern Oregon. The county is named for the Umatilla River. In 2010, its population was 75,889...

. The Columbia County office became Warren again in 1895, and the Umatilla County office was closed in 1902; the locality in Umatilla County is now known as Myrick

Myrick, Oregon

Myrick is an unincorporated historic locale in Umatilla County, Oregon, United States. It is located between Pendleton and Helix, just south of Oregon Route 334.Myrick is a station on the Burlington Northern Railroad that was originally named "Warren"...

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