Demographics of Jefferson County, Oregon

Jefferson County, Oregon had 25,740 people on July 1, 2025, by the Census Bureau’s estimate: +1,158 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Jefferson County, in four figures

25,740
Population: July 1, 2025, Vintage 2025 estimate.; +4.7%
Change since July 2020: +1,158 people.; 41.5 ±0.9
Median age: ACS 2020–⁠2024.; $76,260 ±$6,324
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Jefferson County, Oregon's population grew 4.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Jefferson County, Oregon's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Jefferson County, Oregon's population grew 4.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Jefferson County, Oregon's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	24,582	100.0	100.0
2021	25,094	102.1	100.2
2022	25,317	103.0	100.7
2023	25,532	103.9	101.6
2024	25,685	104.5	102.5
2025	25,740	104.7	103.1

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Population of Jefferson County, Oregon on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	24,582	+67	+15	0	+54
2021	25,094	+512	−71	+1	+607
2022	25,317	+223	−29	+8	+232
2023	25,532	+215	+9	+52	+152
2024	25,685	+153	−5	+100	+58
2025	25,740	+55	−23	+36	+41

Age, 2020–2024

The median age is 41.5 ±0.9: for men 40.9 ±0.8 and for women 42.2 ±0.8. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Jefferson County by age, ACS 2020–2024
Age	People	Share	Oregon	United States
Under 5	1,494 ±78	5.9% ±0.3	4.9% ±<0.1	5.6% ±<0.1
5 to 17	4,225 ±268	16.8% ±1.1	15.0% ±0.1	16.3% ±<0.1
18 to 24	1,909 ±242	7.6% ±1.0	8.5% ±0.1	9.1% ±<0.1
25 to 44	6,260 ±293	24.8% ±1.2	28.0% ±0.1	26.9% ±<0.1
45 to 64	6,299 ±331	25.0% ±1.3	24.5% ±0.1	24.8% ±<0.1
65 and over	5,016 ±337	19.9% ±1.3	19.1% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $76,260 ±$6,324, and income per person $33,508 ±$2,056, in 2024 dollars. The median is $83,011 ±$573 in Oregon and $80,734 ±$166 in the United States.

Households by income

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Households in Jefferson County by income, ACS 2020–2024
Household income	Households	Share	Oregon	United States
Under $25,000	1,321 ±260	15.0% ±2.9	13.9% ±0.2	14.6% ±<0.1
$25,000 to $49,999	1,509 ±243	17.1% ±2.7	16.2% ±0.3	16.7% ±<0.1
$50,000 to $74,999	1,516 ±226	17.2% ±2.5	15.4% ±0.2	15.5% ±<0.1
$75,000 to $99,999	1,440 ±266	16.3% ±3.0	13.2% ±0.2	12.6% ±<0.1
$100,000 to $149,999	1,501 ±225	17.0% ±2.5	18.5% ±0.2	17.5% ±<0.1
$150,000 to $199,999	852 ±185	9.7% ±2.1	10.1% ±0.2	9.6% ±<0.1
$200,000 or more	675 ±178	7.7% ±2.0	12.7% ±0.2	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Jefferson County by age, ACS 2020–2024
Age	Below poverty	Rate	Oregon	United States
All ages	3,220 ±579	13.4% ±2.4	11.9% ±0.2	12.5% ±0.1
Under 18	982 ±259	17.5% ±4.4	13.2% ±0.4	16.1% ±0.1
18 to 59	1,472 ±312	12.6% ±2.6	12.0% ±0.2	11.6% ±0.1
60 and over	766 ±186	11.4% ±2.7	10.8% ±0.3	11.0% ±<0.1

Housing, 2020–2024

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Housing in Jefferson County, ACS 2020–2024
Measure	Jefferson County	Oregon	United States
Housing units	10,602 ±51	1,857,992 ±637	143,775,355 ±10,234
Occupied	83.1% ±2.3	92.5% ±0.2	89.9% ±0.1
Vacant	16.9% ±2.2	7.5% ±0.2	10.1% ±0.1
Owner occupied	72.0% ±2.8	63.3% ±0.4	65.2% ±0.3
Renter occupied	28.0% ±3.5	36.7% ±0.3	34.8% ±0.1
Median home value	$374,200 ±$13,618	$477,600 ±$1,400	$332,700 ±$236
Median gross rent	$941 ±$57	$1,525 ±$10	$1,413 ±$2
Median year built	1991 ±1	1981 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Jefferson County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Oregon	United States
Hispanic or Latino	5,372 ±0	21.3% ±<0.1	14.7% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	14,447 ±481	57.3% ±1.9	71.4% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	64 to 220	0.3% to 0.9%	1.8% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	56 to 180	0.2% to 0.7%	4.4% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	2,779 ±247	11.0% ±1.0	0.6% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 42	0% to 0.2%	0.4% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	95 to 353	0.4% to 1.4%	0.6% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	2,104 ±534	8.3% ±2.1	6.1% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Jefferson County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Oregon	United States
Born in the state	14,367 ±588	57.0% ±2.3	45.6% ±0.2	57.3% ±<0.1
Born in another state	8,974 ±648	35.6% ±2.6	43.2% ±0.2	26.9% ±<0.1
Born a citizen outside the states	127 ±60	0.5% ±0.2	1.3% ±0.1	1.7% ±<0.1
Born abroad	1,735 ±213	6.9% ±0.8	9.8% ±0.2	14.1% ±<0.1
Naturalized citizens	676 ±171	2.7% ±0.7	4.9% ±0.1	7.4% ±<0.1
Not citizens	1,059 ±190	4.2% ±0.8	5.0% ±0.1	6.8% ±<0.1

Jefferson County among the counties of Oregon

25th of 36 by population, July 2025. Every one is listed on the Oregon page.

Counties of Oregon near Jefferson County in population, July 2025
County	July 2025	Change since 2020
Malheur County	32,261	+1.9%
Crook County	27,564	+10.6%
Tillamook County	27,384	−0.3%
Wasco County	26,310	−1.1%
Union County	25,900	−1.0%
Jefferson County	25,740	+4.7%
Hood River County	23,720	−0.7%
Curry County	22,621	−3.8%
Baker County	16,658	−0.4%
Morrow County	12,602	+3.1%
Lake County	8,187	+0.2%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026