Information by State |
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US Counties
| Oregon
| Columbia
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Find a Lawyer in Columbia County: |
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Columbia County, Oregon (OR) |
Address: |
County Courthouse |
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230 Strand Street |
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St. Helens, Oregon 97051 |
County Seat: |
St. Helens |
Phone: |
503-397-3796 |
Fax: |
503-397-7266 |
Website: |
www.co.columbia.or.us |
Established: |
1854 |
Area: |
687 sq mi |
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Columbia County, Oregon Communities: |
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Total Communities in Columbia County, Oregon: 7 |
Population: |
49,656 |
50,930 |
51,795 |
52,377 |
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2015 * |
2016 * |
2017 * |
2018 * |
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49,351 |
49,402 |
49,215 |
49,265 |
49,499 |
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2010 |
2011 * |
2012 * |
2013 * |
2014 * |
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* (U.S. Census Estimate) |
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