Warrenton is a small, coastal city in Clatsop County, Oregon, United States.

(Daniel Knight) Warren, an early settler, the town is primarily a fishing and logging community.

Warrenton is a less urbanized area close to the Clatsop County seat, Astoria.

The county in which Warrenton is located was named after these people, as well as the last encampment that the Lewis and Clark Expedition established.

Today, a replica of Fort Clatsop still stands just outside of Warrenton city limits.

The first pioneers who settled on the land that would become Warrenton (between 1845 and the early 1850s) were Jeremiah Gerome Tuller, J. W. Wallace, D. E. Pease, Ninian A. Eberman and George Washington Coffenbury.

In 1863, the military battery, Fort Stevens, was built in the Warrenton area near the mouth of the Columbia River.

With the help of Chinese labor, Warren reclaimed a large tract of the land by constructing a dike about 2.5 miles (4.0 km) in length, which was completed in 1878.

Warren laid out the town in about 1891, and in the following year built the first schoolhouse, at a cost of $1,100, and gave it to the school district.

Standing at the northwestern extreme of Oregon, Warrenton is about 5 miles (8.0 km) west of Astoria, across the Youngs Bay bridge, which spans over 4,200 feet (1,300 m) of the Youngs Bay estuary at the mouth of the Columbia River.

Warrenton is made up of the previously individual communities of Flavel, Fort Stevens, Hammond, Lexington, and Skipanon.

[8] Hammond, originally the site of a Clatsop village called Ne-ahk-stow,[8] has its own ZIP Code of 97121, but is now technically part of Warrenton.

This region experiences mildly warm and dry summers, with no average monthly temperatures above 71.6 °F (22.0 °C).