Gilliam County, Oregon

Gilliam County
County
Gilliam County Courthouse in Condon
Location within the U.S. state of Oregon
Oregon's location within the U.S.
Coordinates: 45°23′N120°13′W / 45.38°N 120.21°W / 45.38; -120.21
Country	United States
State	Oregon
Founded	February 25, 1885
Named after	Cornelius Gilliam
Seat	Condon
Largest city	Condon
Area
• Total	1,223 sq mi (3,170 km2)
• Land	1,205 sq mi (3,120 km2)
• Water	18 sq mi (50 km2)  1.5%
Population  (2020)
• Total	1,995
• Estimate  (2024)	1,971
• Density	1.6/sq mi (0.63/km2)
Congressional district	2nd
Website	www.co.gilliam.or.us

Gilliam County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 1,995, ^[1] making it the third-least populous county in Oregon. The county seat is Condon. ^[2] The county was established in 1885 and is named for Cornelius Gilliam, ^[3] a colonel who commanded the forces of the provisional government of Oregon after the Whitman Massacre.

History

Old grain elevator in Gwendolen, in Gilliam County.

The Oregon Legislative Assembly created Gilliam County on February 25, 1885, from the eastern third of Wasco County after residents complained that they were too far from their county seat in The Dalles. The first Gilliam county seat was at Alkali, now Arlington. The question of a permanent county seat was placed on general election ballots in 1886, 1888, and again in 1890, when voters chose to move the county seat to Condon, known to early settlers as "Summit Springs." Once the question of the location of the county seat was settled, voters in Gilliam County proved reluctant to provide a courthouse in Condon. The county government operated out of a two-room house until 1903, when the county court appropriated money to construct a courthouse. This courthouse burned down in 1954 and was replaced the following year with the current courthouse.

The Shepherds Flat Wind Farm, an 845 megawatt (MW) wind farm, began construction near Arlington in 2009, shortly after approval by state regulators. The wind farm was being built by Caithness Energy using General Electric (GE) 2.5 MW wind turbines, and it will supply electricity to Southern California Edison. In April 2011, Google announced they had invested $100 million in the project. The wind farm was estimated to have an economic impact of $16 million annually for Oregon.

Geography

Map of Gilliam County

Gilliam County is located in the central northern part of Oregon, east of the Cascade Range. While its southern and eastern borders are defined by its neighboring counties, its western border is defined by the John Day River and its northern border is defined by the Columbia River. Most of the county is mostly flat, but contains various canyons created by streams from the Blue Mountains.

According to the United States Census Bureau, the county has a total area of 1,223 square miles (3,170 km²), of which 1,205 square miles (3,120 km²) is land and 18 square miles (47 km²) (1.5%) is water. ^[4]

Adjacent counties

• Klickitat County, Washington - north
• Morrow County - east
• Wheeler County - south
• Wasco County - southwest
• Sherman County - west

Demographics

Historical population

Census	Pop.	Note	%±
1890	3,600		—
1900	3,201		−11.1%
1910	3,701		15.6%
1920	3,960		7.0%
1930	3,467		−12.4%
1940	2,844		−18.0%
1950	2,817		−0.9%
1960	3,069		8.9%
1970	2,342		−23.7%
1980	2,057		−12.2%
1990	1,717		−16.5%
2000	1,915		11.5%
2010	1,871		−2.3%
2020	1,995		6.6%
2024 (est.)	1,971	[5]	−1.2%
U.S. Decennial Census [6] 1790–1960 [7] 1900–1990 [8] 1990–2000 [9] 2010–2020 [1]

2020 census

Gilliam County, Oregon – Racial and ethnic composition
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.

Race / Ethnicity (NH = Non-Hispanic)	Pop 1980 [10]	Pop 1990 [11]	Pop 2000 [12]	Pop 2010 [13]	Pop 2020 [14]	% 1980	% 1990	% 2000	% 2010	% 2020
White alone (NH)	1,961	1,668	1,839	1,725	1,747	95.33%	97.15%	96.03%	92.20%	87.57%
Black or African American alone (NH)	0	0	3	3	3	0.00%	0.00%	0.16%	0.16%	0.15%
Native American or Alaska Native alone (NH)	9	10	16	18	29	0.44%	0.58%	0.84%	0.96%	1.45%
Asian alone (NH)	3	9	3	3	6	0.15%	0.52%	0.16%	0.16%	0.30%
Native Hawaiian or Pacific Islander alone (NH)	x [15]	x [16]	0	13	9	x	x	0.00%	0.69%	0.45%
Other race alone (NH)	31	0	1	0	3	1.51%	0.00%	0.05%	0.00%	0.15%
Mixed race or Multiracial (NH)	x [17]	x [18]	18	21	91	x	x	0.94%	1.12%	4.56%
Hispanic or Latino (any race)	53	30	35	88	107	2.58%	1.75%	1.83%	4.70%	5.36%
Total	2,057	1,717	1,915	1,871	1,995	100.00%	100.00%	100.00%	100.00%	100.00%

2010 census

As of the 2010 census, there were 1,871 people, 864 households, and 508 families living in the county. ^[19] The population density was 1.6 inhabitants per square mile (0.62 inhabitants/km²). There were 1,156 housing units at an average density of 1.0 units per square mile (0.39 units/km²). ^[20] The racial makeup of the county was 95.2% white, 1.0% American Indian, 0.7% Pacific islander, 0.2% Asian, 0.2% black or African American, 1.4% from other races, and 1.4% from two or more races. Those of Hispanic or Latino origin made up 4.7% of the population. ^[19] In terms of ancestry, 28.4% were German, 18.5% were English, 15.5% were Irish, and 8.3% were American. ^[21]

Of the 864 households, 22.5% had children under the age of 18 living with them, 48.4% were married couples living together, 6.4% had a female householder with no husband present, 41.2% were non-families, and 35.6% of all households were made up of individuals. The average household size was 2.14 and the average family size was 2.74. The median age was 49.7 years. ^[19]

The median income for a household in the county was $42,148 and the median income for a family was $52,885. Males had a median income of $34,340 versus $35,962 for females. The per capita income for the county was $25,559. About 9.8% of families and 10.6% of the population were below the poverty line, including 18.3% of those under age 18 and 10.8% of those age 65 or over. ^[22]

2000 census

As of the 2000 census, there were 1,915 people, 819 households, and 543 families living in the county. The population density was 2 people per square mile (0.77 people/km²). There were 1,043 housing units at an average density of 1 units per square mile (0.39/km²). The racial makeup of the county was 96.76% White, 0.16% Black or African American, 0.84% Native American, 0.16% Asian, 1.15% from other races, and 0.94% from two or more races. 1.83% of the population were Hispanic or Latino of any race. 18.2% were of German, 18.1% American, 12.6% English, 12.5% Irish and 5.3% Scottish ancestry.

There were 819 households, out of which 27.60% had children under the age of 18 living with them, 57.90% were married couples living together, 5.90% had a female householder with no husband present, and 33.60% were non-families. 29.50% of all households were made up of individuals, and 12.10% had someone living alone who was 65 years of age or older. The average household size was 2.31 and the average family size was 2.85.

In the county, the population was spread out, with 23.20% under the age of 18, 5.40% from 18 to 24, 25.60% from 25 to 44, 26.70% from 45 to 64, and 19.10% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 102.20 males. For every 100 females age 18 and over, there were 96.30 males.

The median income for a household in the county was $33,611, and the median income for a family was $41,477. Males had a median income of $30,915 versus $20,852 for females. The per capita income for the county was $17,659. About 6.70% of families and 9.10% of the population were below the poverty line, including 11.00% of those under age 18 and 6.60% of those age 65 or over.

Communities

Cities

• Arlington
• Condon (county seat)
• Lonerock

Unincorporated communities

• Clem
• Gwendolen
• Mayville
• Mikkalo
• Olex
• Rock Creek
• Thirtymile

Former communities

• Ajax
• Barnett
• Blalock
• Heppner Junction
• Montague
• Quinton
• Rhea
• Shutler

Government and infrastructure

The Northern Oregon Regional Corrections Facility (Norcor), a short-term jail, serves Gilliam, Hood River, Sherman, and Wasco counties. ^[23]

Politics

Though Gilliam County is located in central Oregon, politically it falls in line with the eastern side of the state. The majority of registered voters who are part of a political party in Gilliam County, as well as most counties in eastern Oregon, are members of the Republican Party. ^[24] The last time a Democrat carried a clear majority of the votes in Gilliam was in 1964 with Lyndon Johnson, though Bill Clinton was able to win it by a plurality in 1996 and had lost it by just three votes in 1992. In the 2008 presidential election, 58.36% of Gilliam County voters voted for Republican John McCain, while 38.74% voted for Democrat Barack Obama and 2.88% of voters either voted for a Third Party candidate or wrote in a candidate.^{[ citation needed ]} These numbers show a small but clear shift towards the Democratic candidate when compared to the 2004 presidential election, in which 66.3% of Gilliam Country voters voted for George W. Bush, while 32.5% voted for John Kerry, and 1.2% of voters either voted for a third-party candidate or wrote in a candidate. ^[25]

Despite its Republican lean, Gilliam County has still been willing to vote for Democrats at the state level; for example, Senator Ron Wyden won the county in the 1998, 2004, 2010, and 2016 elections. This streak, however, ended in 2022 when Republican Jo Rae Perkins won most of the county's votes.

United States presidential election results for Gilliam County, Oregon ^[26]

Year	Republican		Democratic		Third party(ies)
	No.	%	No.	%	No.	%
2024	805	70.99%	291	25.66%	38	3.35%
2020	834	70.80%	324	27.50%	20	1.70%
2016	671	65.85%	239	23.45%	109	10.70%
2012	639	60.23%	371	34.97%	51	4.81%
2008	648	58.38%	430	38.74%	32	2.88%
2004	755	66.34%	370	32.51%	13	1.14%
2000	679	62.29%	359	32.94%	52	4.77%
1996	398	38.27%	485	46.63%	157	15.10%
1992	377	36.32%	374	36.03%	287	27.65%
1988	470	52.40%	417	46.49%	10	1.11%
1984	700	65.24%	369	34.39%	4	0.37%
1980	622	54.56%	394	34.56%	124	10.88%
1976	612	52.49%	508	43.57%	46	3.95%
1972	665	62.21%	355	33.21%	49	4.58%
1968	619	55.27%	436	38.93%	65	5.80%
1964	442	36.23%	775	63.52%	3	0.25%
1960	712	54.02%	606	45.98%	0	0.00%
1956	793	59.58%	538	40.42%	0	0.00%
1952	911	68.55%	415	31.23%	3	0.23%
1948	623	52.62%	544	45.95%	17	1.44%
1944	492	46.42%	567	53.49%	1	0.09%
1940	518	39.63%	785	60.06%	4	0.31%
1936	362	25.66%	983	69.67%	66	4.68%
1932	470	35.00%	854	63.59%	19	1.41%
1928	880	62.50%	515	36.58%	13	0.92%
1924	738	50.20%	521	35.44%	211	14.35%
1920	821	60.59%	498	36.75%	36	2.66%
1916	557	37.89%	870	59.18%	43	2.93%
1912	348	40.51%	310	36.09%	201	23.40%
1908	470	61.92%	242	31.88%	47	6.19%
1904	568	67.46%	195	23.16%	79	9.38%

Economy

The view westward of a wheat field off Highway 19.

Gilliam County is in the heart of the Columbia River Plateau wheat-growing region. The economy is based on agriculture, and wheat, barley and beef cattle are the principal products. Properties are large, with an average farm size of about 4,200 acres (17 km²).

The largest individual employers in the county are two subsidiaries of Waste Management Inc., Chemical Waste Management of the Northwest and Oregon Waste Systems, Inc., who run two regional waste disposal landfills. By levying a fee of $1 a ton, Gilliam County receives enough money to pay the first $500 of the property tax bills of its inhabitants, an amount that covers the full tax bill for almost half of the county inhabitants, as well as funding other county projects.

Hunting, fishing and tourism are secondary industries. Transportation also contributes to the local economy; two major rivers, the John Day and Columbia, cross the area east-to-west, as does Interstate 84. Oregon Route 19 connects the county's major cities north-to-south and provides access to the John Day Valley.

See also

• Oregon portal

• National Register of Historic Places listings in Gilliam County, Oregon

References

1. "State & County QuickFacts". United States Census Bureau. Retrieved May 20, 2023.
2. "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
3. Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. pp.  137.
4. "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved February 25, 2015.
5. "County Population Totals and Components of Change: 2020-2024". United States Census Bureau. Retrieved May 15, 2025.
6. "U.S. Decennial Census". United States Census Bureau. Retrieved February 25, 2015.
7. "Historical Census Browser". University of Virginia Library. Retrieved February 25, 2015.
8. Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved February 25, 2015.
9. "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Archived from the original (PDF) on February 26, 2015. Retrieved February 25, 2015.
10. "1980 Census of Population - General Population Characteristics - Oregon - Table 58 - Persons by Race and Table 59 - Total Persons and Spanish Origin Persons by Type of Spanish Origin and Race (p. 39/24-39/32)" (PDF). United States Census Bureau .
11. "1990 Census of Population - General Population Characteristics - Oregon - Table 5 - Race and Hispanic Origin" (PDF). United States Census Bureau . p. 9-30.
12. "P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Gilliam County, Oregon". United States Census Bureau .
13. "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – Gilliam County, Oregon". United States Census Bureau .
14. "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – Gilliam County, Oregon". United States Census Bureau .
15. included in the Asian category in the 1980 Census
16. included in the Asian category in the 1990 Census
17. not an option in the 1980 Census
18. not an option in the 1990 Census
19. "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved February 23, 2016.
20. "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved February 23, 2016.
21. "DP02 Selected Social Characteristics in the United States – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved February 23, 2016.
22. "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved February 23, 2016.
23. "Norcor Home Archived November 24, 2011, at the Wayback Machine ." Northern Oregon Regional Corrections Facility. Retrieved on November 22, 2011.
24. "Voter registration by county: March 2009", April 10, 2009 (PDF). Elections Division. Retrieved April 20, 2009.
25. "Gilliam County, Oregon". City-Data.Com. Retrieved April 21, 2009.
26. Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved April 11, 2018.

Further reading

• Turnbull, George S. (1939). "Gilliam County"  . History of Oregon Newspapers  . Binfords & Mort.

External links

• Entry for Gilliam County in the Oregon Blue Book

45°23′N120°13′W / 45.38°N 120.21°W / 45.38; -120.21