This list presents the full set of buildings, structures, objects, sites, or districts designated on the National Register of Historic Places in Columbia County, Oregon, and offers brief descriptive information about each of them. The National Register recognizes places of national, state, or local historic significance across the United States.  Out of over 90,000 National Register sites nationwide,  Oregon is home to over 2,000,  and 13 of those are found partially or wholly in Columbia County.
|||Name on the Register||Image||Date listed ||Location||City or town||Description|
|1||Dr. Charles G. and Lucinda McBride Caples Farmstead||September 21, 2005
|1925 1st Street||Columbia City||Charles Caples (1832–1906) was the first physician in Columbia County and built this home in 1870. Lucinda McBride Caples (d. 1916) served as a midwife and had family connections to many prominent Oregonians of the period. Charles, Lucinda, and the extended Caples family made important contributions to the early development of the town, including establishment of its first school. |
|2||Clatskanie IOOF Hall||March 7, 2012
|75 S. Nehalem Street||Clatskanie|
|3||Cox–Williams House||November 1, 1982
|280 S 1st Street||St. Helens|
|4||Thomas J. Flippin House||March 7, 1979
|620 Tichenor Street||Clatskanie|
|5||John and Carolena Heimuller Farmstead||February 28, 2011
|32600 SW J. P. West Road||Scappoose vicinity|
|6||Longview Bridge||July 16, 1982
Washington Highway 433 spanning the
|7||George F. Moeck House||April 14, 1978
|713 B Street, W.||Rainier|
|8||Oregon–American Lumber Company Mill Office||December 5, 2002
|511 E Bridge Street||Vernonia|
|9||Portland and Southwestern Railroad Tunnel||August 17, 1981
|Along the Scappoose–Vernonia Highway; details of the specific location are restricted.
||Scappoose vicinity||The Portland and Southwestern Railroad's 1910–1920 construction of this timber-lined tunnel across the Nehalem Divide was an unusual step for a logging railroad, which would typically rely on less permanent infrastructure. The tunnel and rail line were abandoned in 1945 as the timber industry transitioned to log transport by truck. |
|10||St. Helens Downtown Historic District||October 25, 1984
|Roughly Strand, 1st, 2nd, 3rd, Cowlitz, and St. Helens Streets, and Columbia Boulevard||St. Helens|
|11||United States Post Office (Scappoose)||January 31, 2017
Columbia River Highway||Scappoose||This 1966 post office is an intact example of the facilities built by the Post Office Department in the late 1950s and the 1960s. These buildings, mostly of a modest, Modern style, mark a period in post office design between the PWA-led monumental buildings of the Great Depression and the 1971 postal reorganization.  |
|12||James Grant Watts House||November 28, 1980
|206 SE 1st Street||Scappoose|
|13||Woodbine Cemetery – Green Mountain Cemetery||August 9, 2001
|75900 Larson Road||Rainier vicinity|
- National Register of Historic Places listings in Oregon
- Listings in neighboring counties: Clark, Clatsop, Cowlitz, Multnomah, Tillamook, Wahkiakum, Washington
- Historic preservation
- History of Oregon
- Lists of Oregon-related topics
- Andrus, Patrick W.; Shrimpton, Rebecca H.; et al. (2002), How to Apply the National Register Criteria for Evaluation, National Register Bulletin (15), National Park Service, U.S. Department of the Interior, OCLC 39493977, archived from the original on April 6, 2014, retrieved June 20, 2014.
- National Park Service, National Register of Historic Places Program: Research, archived from the original on February 1, 2015, retrieved January 28, 2015.
- Oregon Parks and Recreation Department, Oregon Historic Sites Database, retrieved August 6, 2015. Note that a simple count of National Register records in this database returns a slightly higher total than actual listings, due to duplicate records. A close reading of detailed query results is necessary to arrive at the precise count.
- "National Register of Historic Places: Weekly List Actions". National Park Service, United States Department of the Interior. Retrieved on March 22, 2019.
- Numbers represent an ordering by significant words. Various colorings, defined here, differentiate National Historic Landmarks and historic districts from other NRHP buildings, structures, sites or objects.
- The eight-digit number below each date is the number assigned to each location in the National Register Information System database, which can be viewed by clicking the number.
- Gaston, Helen (June 16, 2003), National Register of Historic Places Registration Form: Caples, Dr. Charles G. and Lucinda McBride, Farmstead (PDF), retrieved March 3, 2018.
- McCamish, Brian (June 30, 2006). "Portland & Southwestern Railroad and the Nehalem Divide Tunnel". In Search of History Expeditions. Gresham, Oregon. Retrieved April 3, 2009.
- Tess, John M. (November 1, 2013), National Register of Historic Places Registration Form: United States Post Office [Scappoose] (Draft for review by State Advisory Committee on Historic Preservation).
- Tess, John M. (September 5, 2013), National Register of Historic Places Multiple Property Documentation Form: U.S. Post Offices in Oregon, 1940 to 1971 (Draft for review by State Advisory Committee on Historic Preservation).