Oregon

Wasco

26,670
2020 population
1860
first census record
17
census records

About Wasco

Wasco, Oregon, first appears in the United States federal census in 1860, when it recorded a population of 1,689. At the most recent census, in 2020, its population stood at 26,670.

The county's recorded population has risen across the decades to its highest level in 2020.

On the ground today, one documented military engagement has been recorded within the county, among them Battle of the Dalles, and 33 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202026,670
201025,213
200023,791
199021,683
198021,732
197020,133
196020,205
195015,552
194013,069
193012,646
192013,648
191016,336
190013,199
18909,183
188011,120
18702,509
18601,689
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Battles & engagements in Wasco

Military engagements that took place in Wasco, Oregon.

Battle of the Dalles
1855

Historic places in Wasco

National Register of Historic Places listings in Wasco, Oregon.

Anderson, Lewis, House, Barn and Granary
The Dalles
US Post Office
The Dalles
Kelly, Joseph D. and Margaret, House
The Dalles
Reuter, Dr. J. A., House
The Dalles
St. Peter's Roman Catholic Church
The Dalles
Mosier Mounds Complex
Mosier
Trevitt's Addition Historic District
The Dalles
Heimrich-Seufert House
The Dalles
Glenn, Hugh, House
The Dalles
Balch Hotel
Dufur
Bennett-Williams House
The Dalles
Thompson, John L., House
The Dalles
The Dalles Civic Auditorium
The Dalles
French, Edward, House
The Dalles
Van Dellen, John and Murta, House
The Dalles
Maupin Section Foreman's House
Maupin
Dalles Carnegie Library
The Dalles
First Wasco County Courthouse
The Dallas
Indian Shaker Church and Gulick Homestead
The Dalles
Columbia Southern Hotel
Shaniko
Mosier, Jefferson, House
Mosier
The Dalles Commercial Historic District
The Dalles
Humason, Orlando, House
The Dalles
Sharp, Edward F., Residential Ensemble
The Dalles
Browse all Oregonhistoric sites ›

Other counties in Oregon

Explore census history and historic records for more Oregon counties.

Hood RiverJacksonJeffersonJosephineKlamathLakeLaneLincolnLinnMalheurMarionMorrowMultnomahPolkShermanTillamookUmatillaUmpquaUnionWallowa
Unlimited access

Everything a full report reveals about Wasco County, Oregon

This page charts the census history of Wasco County, Oregon. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
First month just $5.99, then $11.99 a month. Unlimited locations, cancel anytime.

Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

Start your Wasco County, Oregon report
Or see a real report first

Explore Oregon records

Oregonhistory ›NRHP historic sites ›Notable people from Oregon›

Frequently asked about Wasco

When does Wasco first appear in the US census?
Wasco, Oregon first appears in the federal census in 1860, with a recorded population of 1,689.
What is the population of Wasco?
At the most recent federal census (2020), Wasco had a recorded population of 26,670.
Were any battles fought in Wasco?
1 documented military engagement took place in Wasco, including Battle of the Dalles.
How many historic places are in Wasco?
33 sites are listed on the National Register of Historic Places in Wasco, Oregon.
Aubrey Research

Research the history of any US location

Aubrey searches federal archives, archaeological records, historic registers, and primary sources to build a full historical report for any address or place in the United States.

Research your locationView a free sample report