Skip to content
Jefferson County

File:MadrasJeffersoncourthouse.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ253186· pop 48· linked from 487 articles

Jefferson County

Sign in to save

Also known as Jefferson County, Oregon, Jefferson County, OR

county in Oregon, United States

Key facts

Country
United States
State
Oregon
Founded
December 12, 1914
Named after
Mount Jefferson
Seat
Madras
Largest city
Madras
Total
1,791 sq mi (4,640 km )
Land
1,781 sq mi (4,610 km )
Water
10 sq mi (26 km ) 0.6%
Estimate 2025
25,740
Density
12/sq mi (4.6/km )
Time zone
UTC−8 ( Pacific )
Summer dst
UTC−7 ( PDT )
Congressional districts
2nd , 5th
Website
www .co .jefferson .or .us

via Wikipedia infobox

Wikidata facts

Population
24502
Area
4639
Official website
www.co.jefferson.or.us
Image
MadrasJeffersoncourthouse.jpg
Households
8395
Show 5 more facts
Commons category
Jefferson County, Oregon
inception
1914-00-00
water as percent of area
0.6
native label
Jefferson County
per capita income
26177
Sources (8)

via Wikidata · CC0

~10 min read

Article

Jefferson County is one of the 36 counties in the U.S. state of Oregon. At the 2020 census, the population was 24,502. The county seat is Madras. The county is named after Mount Jefferson, the second tallest mountain in Oregon.

History

Gallery (5)

On the map

Connections

Categories