Gilliam County, Oregon

Gilliam County, Oregon, has 1,971 residents (July 2025 estimate). Its county seat is Condon. It uses Pacific Time and covers 1,205 sq mi (3,120 km²) of land.

PortlandEugeneSalem
Gilliam County in Oregon
Morrow CountySherman CountyWasco CountyArlingtonCondonLonerock
Gilliam County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
1,971
Land area
1,205 sq mi (3,120 km²)
County seat or government
Condon
Time zone
Pacific TimeUTC-08:00 in January; UTC-07:00 in July
Median household income
$66,917 ± $11,858
Median home value
$189,300 ± $54,196
Median rent, with utilities
$1,125 ± $173
Homes lived in by their owners
74.1% ± 5.7 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: The Dalles, OR micro area and Hermiston-Pendleton, OR micro area
Water area
18.1 sq mi (46.9 km²)
State
Oregon
County code (FIPS)
41021
Coordinates (central point)
45.382955, -120.276246

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Gilliam County

Time zoneLocal time and UTC offsetNext clock change
Pacific TimeAmerica/Los_AngelesUTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 978231,014 people
  2. 97812932 people
  3. 97843805 people
  4. 97830800 people

4 ZIP Code areas overlap Gilliam County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Gilliam County, largest first

  1. Condon School District 25J1,071 people
  2. Arlington School District 3900 people
  3. Ione School District 2784 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Arlington, Oregon (city)690 people
  2. Condon, Oregon (city)623 people
  3. Lonerock, Oregon (city)36 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Sherman County, Oregon20 mi west
  2. Morrow County, Oregon33 mi east
  3. Klickitat County, Washington42 mi northwest
  4. Wasco County, Oregon46 mi west
  5. Wheeler County, Oregon46 mi south

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.