Demographics of Grant County, Oklahoma

Grant County, Oklahoma had 4,067 people on July 1, 2025, by the Census Bureau’s estimate: −119 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.

Grant County, in four figures

4,067
Population: July 1, 2025, Vintage 2025 estimate.; −2.8%
Change since July 2020: −119 people.; 43.2 ±0.5
Median age: ACS 2020–⁠2024.; $60,758 ±$5,240
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.

Grant County, Oklahoma's population shrank 2.8% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Grant 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

Grant County, Oklahoma's population shrank 2.8% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Grant 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	4,186	100.0	100.0
2021	4,153	99.2	100.2
2022	4,132	98.7	100.7
2023	4,098	97.9	101.6
2024	4,132	98.7	102.5
2025	4,067	97.2	103.1

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Population of Grant County, Oklahoma on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From elsewhere in the country
2020	4,186	+12	+1	+10
2021	4,153	−33	−43	+7
2022	4,132	−21	−24	+5
2023	4,098	−34	−18	−16
2024	4,132	+34	−18	+52
2025	4,067	−65	−19	−44

Age, 2020–2024

The median age is 43.2 ±0.5: for men 42.0 ±1.8 and for women 43.8 ±0.6. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Grant County by age, ACS 2020–2024
Age	People	Share	Oklahoma	United States
Under 5	245 ±35	5.9% ±0.8	6.1% ±<0.1	5.6% ±<0.1
5 to 17	734 ±68	17.8% ±1.7	17.8% ±0.1	16.3% ±<0.1
18 to 24	263 ±62	6.4% ±1.5	9.8% ±0.1	9.1% ±<0.1
25 to 44	946 ±70	22.9% ±1.7	26.6% ±0.1	26.9% ±<0.1
45 to 64	1,004 ±97	24.3% ±2.4	23.3% ±0.1	24.8% ±<0.1
65 and over	939 ±106	22.7% ±2.6	16.3% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $60,758 ±$5,240, and income per person $33,609 ±$2,877, 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 Grant County by income, ACS 2020–2024
Household income	Households	Share	Oklahoma	United States
Under $25,000	325 ±82	20.2% ±5.0	17.5% ±0.2	14.6% ±<0.1
$25,000 to $49,999	374 ±80	23.2% ±4.8	20.9% ±0.3	16.7% ±<0.1
$50,000 to $74,999	235 ±52	14.6% ±3.1	18.0% ±0.2	15.5% ±<0.1
$75,000 to $99,999	223 ±46	13.8% ±2.8	13.1% ±0.2	12.6% ±<0.1
$100,000 to $149,999	228 ±56	14.1% ±3.4	16.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	139 ±40	8.6% ±2.4	7.2% ±0.2	9.6% ±<0.1
$200,000 or more	88 ±37	5.5% ±2.3	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 Grant County by age, ACS 2020–2024
Age	Below poverty	Rate	Oklahoma	United States
All ages	707 ±173	17.5% ±4.3	15.3% ±0.2	12.5% ±0.1
Under 18	237 ±69	24.7% ±6.5	20.1% ±0.3	16.1% ±0.1
18 to 59	259 ±69	14.1% ±3.7	14.8% ±0.2	11.6% ±0.1
60 and over	211 ±68	17.0% ±5.3	11.5% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Grant County, ACS 2020–2024
Measure	Grant County	Oklahoma	United States
Housing units	2,163 ±18	1,775,127 ±745	143,775,355 ±10,234
Occupied	74.5% ±3.7	88.0% ±0.2	89.9% ±0.1
Vacant	25.5% ±3.7	12.0% ±0.1	10.1% ±0.1
Owner occupied	76.3% ±3.4	65.8% ±0.2	65.2% ±0.3
Renter occupied	23.7% ±3.6	34.2% ±0.2	34.8% ±0.1
Median home value	$105,700 ±$16,683	$199,800 ±$1,121	$332,700 ±$236
Median gross rent	$853 ±$37	$1,014 ±$6	$1,413 ±$2
Median year built	1967 ±4	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 Grant County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Oklahoma	United States
Hispanic or Latino	194 ±0	4.7% ±<0.1	12.7% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	3,521 ±43	85.2% ±1.0	62.1% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	78 ±31	1.9% ±0.8	6.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	1 to 11	< 0.1% to 0.3%	2.4% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	95 ±27	2.3% ±0.7	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 25	0% to 0.6%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	226 ±56	5.5% ±1.4	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 Grant County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Oklahoma	United States
Born in the state	2,847 ±130	68.9% ±3.1	59.6% ±0.2	57.3% ±<0.1
Born in another state	1,260 ±129	30.5% ±3.1	32.9% ±0.2	26.9% ±<0.1
Born a citizen outside the states	0 to 25	0% to 0.6%	1.2% ±<0.1	1.7% ±<0.1
Born abroad	5 to 19	0.1% to 0.5%	6.4% ±0.1	14.1% ±<0.1
Naturalized citizens	2 to 14	< 0.1% to 0.3%	2.6% ±0.1	7.4% ±<0.1
Not citizens	0 to 10	0% to 0.2%	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%.

Grant County among the counties of Oklahoma

72nd of 77 by population, July 2025. Every one is listed on the Oklahoma page.

Counties of Oklahoma near Grant County in population, July 2025
County	July 2025	Change since 2020
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%
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