Gilliam County, Oregon Demographics 2026

Name: Gilliam County, Oregon Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Gilliam County, Oregon has a population of 2,002, the 34th most populous county in Oregon. The median household income is $64,219 and the median home value is $158,400. The poverty rate is 12.6%.

Gilliam County Quick Facts

Population 2,002

Median Household Income $64,219

Median Home Value $158,400

Poverty Rate 12.6%

Unemployment Rate 1.7%

Median Age 50.3 years

Homeownership Rate 75.6%

Affordability Ratio 2.5x

Bachelor's Degree+ 20.9%

High School Graduation 87.1%

Cities/Places 3

Population 2,002 34th of 36

Median Income $64,219 20% lower than state

Poverty Rate 12.6%

Unemployment 1.7%

Median Household Income

Gilliam

$64,219

$80,426

National

$78,538

Median Home Value

Gilliam

$158,400

$454,200

National

$303,400

Economy & Housing

Household Income Distribution

Under $25K 21.3%

$25K-$50K 14.6%

$50K-$100K 40.6%

$100K+ 23.5%

Detailed income brackets

Under $10K

7.7%

$10K-$15K

5.1%

$15K-$20K

6.1%

$20K-$25K

2.4%

$25K-$30K

3.6%

$30K-$35K

3.2%

$35K-$40K

5.5%

$40K-$45K

1.4%

$45K-$50K

0.9%

$50K-$60K

10.0%

$60K-$75K

17.6%

$75K-$100K

13.0%

$100K-$125K

9.0%

$125K-$150K

3.3%

$150K-$200K

4.7%

$200K+

6.4%

Employment

1.7% Unemployment Rate State: 5.4%|National: 5.2%

51.8% Labor Force Participation

Housing Overview

Owner 75.6%

Renter 24.4%

Affordability Index Very Affordable

2.5x home value to income ratio

People & Demographics

Age Distribution

Under 18

19.0%

18-34

15.8%

35-54

19.7%

55-74

34.7%

75+

10.8%

Race & Ethnicity

Diversity Index

Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 45 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Gilliam County

City	Population	Median Income	Poverty	Home Value
Arlington	720	$75,625	10.7%	$159,200
Condon	621	$38,393	20.4%	$140,000
Lonerock	23	N/A	0.0%	$97,000

Explore Oregon Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Gilliam County is located in Oregon with a total population of 2,002. It is the 34th most populous county out of 36 in Oregon. The county encompasses 3 Census-designated places.

Age Demographics

The median age in Gilliam County is 50.3 years. This is 25% higher than the state median of 40.1 years. 10.8% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Gilliam County is $64,219. This is 20% lower than the state median of $80,426. It is also 18% lower than the national median of $78,538. The poverty rate stands at 12.6%. This is 6% higher than the state poverty rate of 11.9%. The unemployment rate is 1.7%. This is 68% lower than the state rate of 5.4%. The median home value is $158,400. Housing costs are 65% lower than the state median of $454,200. With a home-value-to-income ratio of just 2.5x, Gilliam County is one of the most affordable housing markets in the area. 75.6% of occupied housing units are owner-occupied. This homeownership rate is 19% higher than the state average of 63.4%.

Race & Ethnicity

The largest racial or ethnic group in Gilliam County is White (non-Hispanic), making up 82.1% of the population. Hispanic or Latino residents account for 8.7%. The Asian population (0.4%) is well below the state average of 4.4%.

Education

20.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 42% lower than the state rate of 36.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 87.1%.

Data Sources & Methodology

All figures for Gilliam County come from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023), with comparisons drawn against Oregon and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Gilliam County, Oregon?

Gilliam County has a population of 2,002, making it the 34th most populous county in Oregon.

What is the median income in Gilliam County?

The median household income in Gilliam County is $64,219 with a poverty rate of 12.6%.

How many cities are in Gilliam County, Oregon?

Gilliam County contains 3 Census-designated places.