About Columbia County, Oregon
Columbia County is located in the northwest corner of Oregon. The county seat is St. Helens (official site: http://www.co.columbia.or.us/).
- Population: 54,063
- Households: 20,335
- Median household income: $83,265
- Median home value: $365,100
- Below poverty line: 9.1%
- Land area: 658.7 sq mi
- Population density: 82.1 people / sq mi
- Public libraries indexed: 5
- NCES schools indexed: 21
Oregon Judicial Department : Columbia Home : Columbia County Circuit Court : State of Oregon
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It covers 646 square miles and is bounded on the north and east by the Columbia River, on the west by Clatsop County, and on the south by Washington and Multnomah Counties. Columbia County was the 16th county created in Oregon and is the 3rd smallest county in Oregon after Multnomah and Hood River counties.
Oregon Judicial Department : Columbia Home : Columbia County Circuit Court : State of Oregon
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The Yakima Indian War (1855-1859) drove many Washington Territory residents south of the Columbia River and helped boost the populations of St. Helens and Columbia City. The first district court met in 1854 in Milton , which served as the county seat until 1857 when it moved to St.
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Statewide Oregon court records.
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PACER Federal Courts
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Federal court electronic records (Public Access to Court Electronic Records).
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SEC filings and company registrations.
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Columbia County Inmates
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Oregon State Police : Public Records Requests : Programs : State of Oregon
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Read the state policy. ... Complete and submit the Public Records Request form . Please be as specific as possible in describing the records you seek by including information such as address, highway, milepost, exit number, city, county, well-known landmark, dates, timeframe, parties involved, ...
Oregon Metro - GIS
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The Online Data and Mapping site is the home for many of the DRC's GIS applications . You’ll find links to interactive maps and data visualizations for the region, as well as tools to learn more about a particular address. You can check the zoning of a location, view a map of projects planned ...
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U.S. Bureau of Land Management federal land records.
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Oregon Health Authority : Oregon Vital Records and Certificates : Vital Records and Certificates : State of Oregon
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Since 1903, the Center for Health Statistics (CHS) has kept permanent records of major life events for Oregonians such as births, deaths, marriages, divorces, registered domestic partnerships, and more . These are known as vital records.
Frequently Asked Questions
How do I look up a recent arrest in Columbia County?▼
Recent arrests in Columbia County are first logged at the county jail or sheriff's office in St. Helens. The Columbia County Inmates publishes booking information online: https://www.co.columbia.or.us/sheriff/inmates/index.php. Statewide arrest history is consolidated by the Oregon State Police.
Are Oregon marriage records public?▼
Marriage records in Oregon are generally public — anyone can verify that a marriage occurred and request a non-certified copy. Certified copies (needed for legal purposes like name changes or immigration) may be restricted to the spouses, immediate family, or those with a court order.
Does an active warrant show up on a background check in Oregon?▼
Yes. Active warrants in Oregon appear on name-based criminal background checks through the Oregon State Police system the moment they are entered. Some employers also run a separate NCIC warrant query, which catches federal warrants as well.
What's the difference between a court record and a criminal record in Oregon?▼
A court record shows everything filed in a specific case — pleadings, motions, judgments. A criminal record (rap sheet) is a person-centric history from the Oregon State Police that aggregates arrests and dispositions across all courts in Oregon. Court records are searched by case; criminal records by person.
Last reviewed: May 25, 2026