Demographics of Dewey County, Oklahoma

Dewey County, Oklahoma had 4,207 people on July 1, 2025, by the Census Bureau’s estimate: −269 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.

Dewey County, in four figures

4,207
Population: July 1, 2025, Vintage 2025 estimate.; −6.0%
Change since July 2020: −269 people.; 38.5 ±0.6
Median age: ACS 2020–⁠2024.; $62,569 ±$7,228
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.

Dewey County, Oklahoma's population shrank 6.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Dewey County, Oklahoma'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

Dewey County, Oklahoma's population shrank 6.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Dewey County, Oklahoma'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	4,476	100.0	100.0
2021	4,425	98.9	100.2
2022	4,394	98.2	100.7
2023	4,258	95.1	101.6
2024	4,271	95.4	102.5
2025	4,207	94.0	103.1

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Population of Dewey County, Oklahoma on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	4,476	−7	+6	0	−13
2021	4,425	−51	−18	0	−31
2022	4,394	−31	−35	+1	+6
2023	4,258	−136	−37	0	−101
2024	4,271	+13	−35	0	+48
2025	4,207	−64	−37	−2	−24

Age, 2020–2024

The median age is 38.5 ±0.6: for men 36.7 ±1.0 and for women 41.0 ±1.7. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Dewey County by age, ACS 2020–2024
Age	People	Share	Oklahoma	United States
Under 5	263 ±28	6.0% ±0.6	6.1% ±<0.1	5.6% ±<0.1
5 to 17	929 ±65	21.3% ±1.5	17.8% ±0.1	16.3% ±<0.1
18 to 24	346 ±54	7.9% ±1.2	9.8% ±0.1	9.1% ±<0.1
25 to 44	941 ±56	21.6% ±1.3	26.6% ±0.1	26.9% ±<0.1
45 to 64	1,028 ±64	23.6% ±1.5	23.3% ±0.1	24.8% ±<0.1
65 and over	853 ±72	19.6% ±1.6	16.3% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $62,569 ±$7,228, and income per person $31,627 ±$2,196, in 2024 dollars. The median is $65,039 ±$439 in Oklahoma and $80,734 ±$166 in the United States.

Households by income

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Households in Dewey County by income, ACS 2020–2024
Household income	Households	Share	Oklahoma	United States
Under $25,000	250 ±44	15.3% ±2.6	17.5% ±0.2	14.6% ±<0.1
$25,000 to $49,999	424 ±71	26.0% ±4.3	20.9% ±0.3	16.7% ±<0.1
$50,000 to $74,999	297 ±54	18.2% ±3.3	18.0% ±0.2	15.5% ±<0.1
$75,000 to $99,999	177 ±37	10.9% ±2.2	13.1% ±0.2	12.6% ±<0.1
$100,000 to $149,999	313 ±51	19.2% ±3.0	16.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	105 ±27	6.4% ±1.6	7.2% ±0.2	9.6% ±<0.1
$200,000 or more	65 ±20	4.0% ±1.2	7.2% ±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 Dewey County by age, ACS 2020–2024
Age	Below poverty	Rate	Oklahoma	United States
All ages	604 ±127	14.1% ±3.0	15.3% ±0.2	12.5% ±0.1
Under 18	252 ±55	21.2% ±4.3	20.1% ±0.3	16.1% ±0.1
18 to 59	250 ±68	12.8% ±3.4	14.8% ±0.2	11.6% ±0.1
60 and over	102 ±27	8.9% ±2.3	11.5% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Dewey County, ACS 2020–2024
Measure	Dewey County	Oklahoma	United States
Housing units	2,184 ±22	1,775,127 ±745	143,775,355 ±10,234
Occupied	74.7% ±2.8	88.0% ±0.2	89.9% ±0.1
Vacant	25.3% ±2.9	12.0% ±0.1	10.1% ±0.1
Owner occupied	76.4% ±2.7	65.8% ±0.2	65.2% ±0.3
Renter occupied	23.6% ±4.3	34.2% ±0.2	34.8% ±0.1
Median home value	$133,600 ±$10,773	$199,800 ±$1,121	$332,700 ±$236
Median gross rent	$912 ±$86	$1,014 ±$6	$1,413 ±$2
Median year built	1974 ±2	1980 ±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 Dewey County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Oklahoma	United States
Hispanic or Latino	261 ±0	6.0% ±<0.1	12.7% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	3,523 ±7	80.8% ±0.2	62.1% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	0 to 5	0% to 0.1%	6.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 9	0% to 0.2%	2.4% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	158 ±41	3.6% ±0.9	6.6% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 10	0% to 0.2%	0.2% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 10	0% to 0.2%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	412 ±43	9.4% ±1.0	8.9% ±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 Dewey County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Oklahoma	United States
Born in the state	3,237 ±88	74.2% ±2.0	59.6% ±0.2	57.3% ±<0.1
Born in another state	1,048 ±92	24.0% ±2.1	32.9% ±0.2	26.9% ±<0.1
Born a citizen outside the states	1 to 15	< 0.1% to 0.3%	1.2% ±<0.1	1.7% ±<0.1
Born abroad	67 ±26	1.5% ±0.6	6.4% ±0.1	14.1% ±<0.1
Naturalized citizens	0 to 14	0% to 0.3%	2.6% ±0.1	7.4% ±<0.1
Not citizens	60 ±26	1.4% ±0.6	3.8% ±0.1	6.8% ±<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%.

Dewey County among the counties of Oklahoma

71st of 77 by population, July 2025. Every one is listed on the Oklahoma page.

Counties of Oklahoma near Dewey County in population, July 2025
County	July 2025	Change since 2020
Coal County	5,436	+3.0%
Cotton County	5,432	−1.9%
Jefferson County	5,431	+2.2%
Greer County	5,373	−2.2%
Beaver County	4,882	−2.9%
Dewey County	4,207	−6.0%
Grant County	4,067	−2.8%
Ellis County	3,613	−3.4%
Roger Mills County	3,259	−5.0%
Harper County	3,172	−2.3%
Harmon County	2,327	−6.0%

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