There are 36 counties in the U.S. State of Oregon. The Oregon Constitution does not explicitly provide for county seats; Article VI, covering the "Administrative Department" of the state of Oregon, simply states that: More details on the etymologies of Oregon county names and place names in general are documented in Oregon Geographic Names.

Clark County is the third-most-populous county in the Portland -Vancouver- Hillsboro Metropolitan Statistical Area, and is across the Columbia River from Portland, Oregon. Clark County was created on August 20, 1845, as Vancouver District, named for its town, following the removal of the area from three other districts on July 27, 1844.

In 1849, the legislative assembly renamed the area Clark County. The county was named for Captain William Clark of the Lewis and Clark Expedition, and is located in the southwest comer of Washington, just north of Portland, Oregon.

Clark County is a county located across the Columbia River from Portland, Oregon. Clark County was the first county of Washington, named after William Clark of the Lewis and Clark Expedition. In 2017, Clark County’s population was estimated to be 474,643.

Discover Clark County's history as seen through the eyes of photographers, local museums and contributions from the community.

May 4, 2016 · On August 20, 1845, two days after being passed by Oregon's Provisional Legislature, the act creating Vancouver District, a huge area north of the Columbia River including what will later become Washington's Clark County, is …

Clark County was the first county to be established in Washington, named after William Clark of the Lewis and Clark Expedition. It was created by the provisional government of Oregon Territory on August 20, 1845, and at that time covered the entire present-day state.

Apr 11, 2023 · PORTLAND, Ore. (Portland Tribune) — The fastest growing county in the Portland region is not in Oregon. It is Clark County, across the Columbia River in Washington. According to World...

Feb 4, 2004 · Local history buffs call Clark County the "Cradle of Pacific Northwest History,” reflecting the importance of the 628-square-mile southwestern Washington county as the scene of key historical developments.

Mar 14, 2024 · While the Portland metropolitan area’s population continues to decrease, Clark County’s population has steadily increased since 2020, according to Census data released Thursday.