Gilliam County, OR demographics:
population, income, and more

Total population
1,971
-1.6% year-over-year change
Median household income
$66,917/yr
4.2% year-over-year change
Housing units
1,138
2.4% year-over-year change

Gilliam County population

How many people live in Gilliam County

Gilliam County is home to 1,971 residents, according to the most recent Census data. Gender-wise, 53.4% of Gilliam County locals are male, and 46.6% are female.

Total population
1,971
-1.6% year-over-year change
Gender ratio
Male
53.4%
1,053
Female
46.6%
918
Value Percent YoY change
Male 1,053 53.4% -1.6%
Female 918 46.6% -1.5%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Gilliam County is 50, with the population distributed as follows: about 15.2% are children under 15, then 8.8% are in the 15 to 24 age group. Adults between 25 and 44 make up 22.1% of the population, while another 21.5% fall into the 45 to 64 bracket. Finally, around 32.4% are 65 or older.

Median age
50.1
Age breakdown
Under 15
15.2%
15 to 24
8.8%
25 to 44
22.1%
45 to 64
21.5%
Over 65
32.4%
Value Percent YoY change
Under 15 300 15.2% -6.0%
15 to 24 173 8.8% -6.0%
25 to 44 436 22.1% -0.9%
45 to 64 423 21.5% 0.0%
Over 65 639 32.4% 0.5%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Gilliam County, 93.9% of the population are US-born citizens, while 3.3% have gained naturalized citizenship. At the same time, 2.8% of residents are non-citizens. There’s also a share of 16% that includes residents with two or more races.

Citizenship
U.S.-born citizens
93.9%
Non-U.S.-born citizens
3.3%
Non-citizens
2.8%
Value Percent YoY change
U.S.-born citizens 1,850 93.9% -3.0%
Non-U.S.-born citizens 65 3.3% -1.5%
Non-citizens 56 2.8% 100.0%
Racial breakdown
White
81.3%
Black or African American
0%
American Indian and Alaska Native
1.6%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
16%
Other
1.1%
Value Percent
White 1,602 81.3%
American Indian and Alaska Native 32 1.6%
Two or more races 315 16%
Other 22 1.1%

Households in Gilliam County

A peek inside Gilliam County households

Gilliam County has 875 households, with an average of 2 members in each. Of these, 53.3% are families, while the remaining 46.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
875
0.7% year-over-year change
Average people per household
2
Non-family households
409
Family households
466
Value Percent YoY change
Non-family households 409 46.7% 0.2%
Family households 466 53.3% 1.1%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Gilliam County

The housing landscape of Gilliam County

Gilliam County's housing consists of 1,138 units, with 78.8% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 0.8% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 13.6% of the housing landscape.

Housing units
1,138
2.4% year-over-year change
Housing types
Value Percent
1 unit, detached 897 78.8%
1 unit, attached 9 0.8%
2 units 20 1.8%
3 or 4 units 6 0.5%
5 to 9 units 5 0.4%
20 to 49 units 35 3.1%
Mobile home 155 13.6%
Boat, RV, van, etc. 11 1%
Homes built since 2020
0
% year-over-year change

The age of buildings in Gilliam County

In Gilliam County, the median construction year is 1961. About 23.4% of homes were built before the 1940s, with another 4.9% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 266 23.4% -7.0%
Built between 1940 and 1949 56 4.9% -20.0%
Built between 1950 and 1959 243 21.4% 1.7%
Built between 1960 and 1969 76 6.7% -8.4%
Built between 1970 and 1979 72 6.3% -23.4%
Built between 1980 and 1989 73 6.4% 55.3%
Built between 1990 and 1999 155 13.6% 6.9%
Built between 2000 and 2009 158 13.9% 36.2%
Built between 2010 and 2019 39 3.4% 25.8%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Gilliam County occupancy rates

Out of the 875 occupied housing units in Gilliam County, 74.1% are owner-occupied, while 25.9% are lived in by tenants. Meanwhile, 23.1% of all homes on the local market sit vacant.

Occupied housing units
875
0.7% year-over-year change
Occupancy breakdown
Renter occupied
227
Owner occupied
648
Value Percent YoY
change
Renter occupied 227 25.9% 7.1%
Owner occupied 648 74.1% -1.4%
Unoccupied housing units
23.1%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Gilliam County housing costs

Housing costs in Gilliam County come to a median of $744 per month, while tenants specifically pay a median gross rent of $1,125.

Median housing costs per month
$744/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Gilliam County
$1,125/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Gilliam County

Gilliam County education at a glance

About 43% of the population in Gilliam County went to high school, while 28.7% pursued college studies. Another 6.8% earned an associate degree and 16% hold a bachelor’s. Meanwhile, 4.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 18 1.1% -50.0%
High school diploma 687 43% -5.5%
College diploma 458 28.7% 2.5%
Associate degree 109 6.8% 14.7%
Bachelor's degree 256 16% -0.4%
Graduate degree 68 4.3% 13.3%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Gilliam County

How much people earn in Gilliam County

The average annual household income in Gilliam County was $81,672 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +5.2% change from the previous year. At the same time, the median income stood at $66,917, reflecting a +4.2% shift over the same period.

Average household income in Gilliam County
$81,672/year
5.2% year-over-year change
Median household income in Gilliam County
$66,917/year
4.2% year-over-year change

Gilliam County income by age

In Gilliam County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $75,000. Those with someone between 45 and 64 in charge, often well established professionally, earn $93,362 overall. Overall, 84.9% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $75,000 2.5%
45 - 64 $93,362 30.7%
Over 65 $37,833 -7.2%
Above poverty level
1,634
Below poverty level
291
Value Percent YoY
change
Above poverty level 1,634 84.9% -3.9%
Below poverty level 291 15.1% 17.3%

Employment in Gilliam County

Workforce and job types in Gilliam County

The job market in Gilliam County is powered by 800 working residents, spread across a range of industries and roles. 63.9% of the working population are employed in professional or administrative positions, while 36.1% are in hands-on or service-based jobs. Also, 13.6% run their own businesses, 58.4% are employed by private companies, and 20.4% work in the public sector.

Workforce demographics

Working population
800
-5.7% year-over-year change
White collar
511
Blue collar
289
Value Percent YoY change
White collar 511 63.9% -20.3%
Blue collar 289 36.1% 39.6%
Employer type
Self employees
13.6%
Private companies
58.4%
Governmental workers
20.4%
Not for profit companies
7.6%
Value Percent YoY change
Self employees 109 13.6% -13.5%
Private companies 467 58.4% -1.5%
Governmental workers 163 20.4% -11.9%
Not for profit companies 61 7.6% -3.2%
Unemployment rate
2.8%
53.3% year-over-year change

Available workforce

The unemployment rate in Gilliam County stands at 2.8%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Gilliam County

How people get around in Gilliam County

Commuting methods vary: 83.4% of residents travel by personal vehicle and 9.9% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 666 83.4% 2.3%
Walk 79 9.9% -14.1%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Gilliam County by zipcode?

Zipcode Population Number of households Median income Average income
97812 932 358 $77,258 $95,554
97823 1,014 506 $57,727 $64,586
97830 800 375 $54,583 $93,131
97843 805 360 $104,435 $127,644

Explore more communities

FAQs about Gilliam County demographics 

What is the total population of Gilliam County?

Gilliam County has a total population of 1,971 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -1.6% compared to a year ago.

What is the gender ratio in Gilliam County?

The gender ratio in Gilliam County is as follows:
  • 53.4% males (1,053 residents)
  • 46.6% females (918 residents)

What is the median age in Gilliam County?

The median age in Gilliam County is 50.1.

What is the age distribution of the population in Gilliam County?

The age distribution in Gilliam County is as follows:
  • Under 15: 15.2% (300 residents)
  • Ages 15-24: 8.8% (173 residents)
  • Ages 25-44: 22.1% (436 residents)
  • Ages 45-64: 21.5% (423 residents)
  • Over 65: 32.4% (639 residents)

What is the racial and ethnic makeup of Gilliam County?

The racial and ethnic makeup of Gilliam County is as follows:
  • White: 81.3% (1,602 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 1.6% (32 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 16% (315 residents)
  • Other: 1.1% (22 residents)

What percentage of the population in Gilliam County are U.S.-born citizens?

U.S.-born citizens represent 93.9% of the population in Gilliam County.

How many housing units are there in Gilliam County?

There are 1,138 housing units in Gilliam County, reflecting a +2.4% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Gilliam County and what is the average household size?

Gilliam County has a total of 875 households, with an average of 2 people in each.

What is the median household income in Gilliam County?

Gilliam County has a median household income of $66,917, representing a +4.2% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Gilliam County?

The employment rate is 97.2% in Gilliam County, with a workforce of 800 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 63.9% (511 residents)
  • Blue-collar workers: 36.1% (289 residents)

Places of employment:
  • Self-employed: 13.6% (109 residents)
  • Private companies: 58.4% (467 residents)
  • Governmental workers: 20.4% (163 residents)
  • Not-for-profit companies: 7.6% (61 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025