Demographics of Cimarron County, Oklahoma

Cimarron County, Oklahoma had 2,059 people on July 1, 2025, by the Census Bureau’s estimate: −228 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.

Cimarron County, in four figures

2,059
Population: July 1, 2025, Vintage 2025 estimate.; −10.0%
Change since July 2020: −228 people.; 46.6 ±4.2
Median age: ACS 2020–⁠2024.; $62,188 ±$29,818
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.

Cimarron County, Oklahoma's population shrank 10.0% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Cimarron 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

Cimarron County, Oklahoma's population shrank 10.0% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Cimarron 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	2,287	100.0	100.0
2021	2,245	98.2	100.2
2022	2,226	97.3	100.7
2023	2,184	95.5	101.6
2024	2,121	92.7	102.5
2025	2,059	90.0	103.1

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Population of Cimarron 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	2,287	−3	+1	0	−3
2021	2,245	−42	−4	0	−37
2022	2,226	−19	−13	0	−6
2023	2,184	−42	−7	0	−36
2024	2,121	−63	−18	0	−45
2025	2,059	−62	−18	−1	−42

Age, 2020–2024

The median age is 46.6 ±4.2: for men 36.0 ±2.6 and for women 47.9 ±6.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Cimarron County by age, ACS 2020–2024
Age	People	Share	Oklahoma	United States
Under 5	95 ±30	4.3% ±1.3	6.1% ±<0.1	5.6% ±<0.1
5 to 17	361 ±70	16.3% ±3.2	17.8% ±0.1	16.3% ±<0.1
18 to 24	228 ±112	10.3% ±5.0	9.8% ±0.1	9.1% ±<0.1
25 to 44	382 ±135	17.2% ±6.1	26.6% ±0.1	26.9% ±<0.1
45 to 64	548 ±115	24.7% ±5.2	23.3% ±0.1	24.8% ±<0.1
65 and over	604 ±113	27.2% ±5.1	16.3% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $62,188 ±$29,818, and income per person $36,280 ±$5,302, 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 Cimarron County by income, ACS 2020–2024
Household income	Households	Share	Oklahoma	United States
Under $25,000	137 ±63	19.4% ±8.4	17.5% ±0.2	14.6% ±<0.1
$25,000 to $49,999	138 ±55	19.5% ±7.3	20.9% ±0.3	16.7% ±<0.1
$50,000 to $74,999	40 to 170	6.0% to 23.7%	18.0% ±0.2	15.5% ±<0.1
$75,000 to $99,999	13 to 63	1.9% to 8.8%	13.1% ±0.2	12.6% ±<0.1
$100,000 to $149,999	137 ±62	19.4% ±8.4	16.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	82 ±40	11.6% ±5.4	7.2% ±0.2	9.6% ±<0.1
$200,000 or more	35 to 105	9.9% ±4.7	7.2% ±0.2	13.4% ±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%.

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 Cimarron County by age, ACS 2020–2024
Age	Below poverty	Rate	Oklahoma	United States
All ages	74 to 254	3.4% to 11.5%	15.3% ±0.2	12.5% ±0.1
Under 18	0 to 44	< 0.1% to 9.6%	20.1% ±0.3	16.1% ±0.1
18 to 59	7 to 141	0.8% to 15.3%	14.8% ±0.2	11.6% ±0.1
60 and over	25 to 111	3.1% to 13.3%	11.5% ±0.2	11.0% ±<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%.

Housing, 2020–2024

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Housing in Cimarron County, ACS 2020–2024
Measure	Cimarron County	Oklahoma	United States
Housing units	1,366 ±26	1,775,127 ±745	143,775,355 ±10,234
Occupied	51.8% ±7.3	88.0% ±0.2	89.9% ±0.1
Vacant	48.2% ±7.2	12.0% ±0.1	10.1% ±0.1
Owner occupied	78.4% ±2.3	65.8% ±0.2	65.2% ±0.3
Renter occupied	10.9% to 32.4%	34.2% ±0.2	34.8% ±0.1
Median home value	$98,600 ±$10,542	$199,800 ±$1,121	$332,700 ±$236
Median gross rent	$718 ±$162	$1,014 ±$6	$1,413 ±$2
Median year built	1963 ±4	1980 ±1	1980 ±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%.

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 Cimarron County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Oklahoma	United States
Hispanic or Latino	561 ±0	25.3% ±<0.1	12.7% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	1,473 ±60	66.4% ±2.7	62.1% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	0 to 3	0% to 0.1%	6.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 10	0% to 0.5%	2.4% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 6	0% to 0.3%	6.6% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 10	0% to 0.5%	0.2% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 20	0% to 0.9%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	172 ±60	7.8% ±2.7	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 Cimarron County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Oklahoma	United States
Born in the state	786 ±154	35.4% ±6.9	59.6% ±0.2	57.3% ±<0.1
Born in another state	1,255 ±124	56.6% ±5.6	32.9% ±0.2	26.9% ±<0.1
Born a citizen outside the states	0 to 10	0% to 0.5%	1.2% ±<0.1	1.7% ±<0.1
Born abroad	66 to 288	3.0% to 13.0%	6.4% ±0.1	14.1% ±<0.1
Naturalized citizens	0 to 51	0% to 2.3%	2.6% ±0.1	7.4% ±<0.1
Not citizens	48 to 256	2.2% to 11.5%	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%.

Cimarron County among the counties of Oklahoma

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

Counties of Oklahoma near Cimarron County in population, July 2025
County	July 2025	Change since 2020
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%
Cimarron County	2,059	−10.0%

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