Demographics of Gillette city, Wyoming

Gillette city, Wyoming had 34,024 people on July 1, 2025, by the Census Bureau’s estimate: +529 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Gillette city, in four figures

34,024
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 33,431 ±22.; +1.6%
Change since July 2020: +529 people.; 34.2 ±1.4
Median age: ACS 2020–⁠2024.; $81,316 ±$6,973
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Gillette city, Wyoming's population grew 1.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Gillette city, Wyoming'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).

Source: The Census Bureau

About this chart

The figures

Gillette city, Wyoming's population grew 1.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Gillette city, Wyoming'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	33,495	100.0	100.0
2021	33,019	98.6	100.2
2022	33,300	99.4	100.7
2023	33,589	100.3	101.6
2024	33,975	101.4	102.5
2025	34,024	101.6	103.1

Population of Gillette city, Wyoming on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	33,495	—
2021	33,019	−476
2022	33,300	+281
2023	33,589	+289
2024	33,975	+386
2025	34,024	+49

Age, 2020–2024

The median age is 34.2 ±1.4: for men 33.1 ±1.9 and for women 35.2 ±2.0. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Gillette city by age, ACS 2020–2024
Age	People	Share	Wyoming	United States
Under 5	2,340 ±252	7.0% ±0.8	5.4% ±0.1	5.6% ±<0.1
5 to 17	7,442 ±680	22.3% ±2.0	17.2% ±0.3	16.3% ±<0.1
18 to 24	2,541 ±456	7.6% ±1.4	9.0% ±0.2	9.1% ±<0.1
25 to 44	10,211 ±715	30.5% ±2.1	26.1% ±0.3	26.9% ±<0.1
45 to 64	6,839 ±649	20.5% ±1.9	23.8% ±0.3	24.8% ±<0.1
65 and over	4,058 ±506	12.1% ±1.5	18.5% ±0.3	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $81,316 ±$6,973, and income per person $38,797 ±$2,625, in 2024 dollars. The median is $76,176 ±$1,168 in Wyoming and $80,734 ±$166 in the United States.

Households by income

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Households in Gillette city by income, ACS 2020–2024
Household income	Households	Share	Wyoming	United States
Under $25,000	1,718 ±388	13.5% ±3.0	14.3% ±0.6	14.6% ±<0.1
$25,000 to $49,999	1,790 ±432	14.1% ±3.4	18.0% ±0.6	16.7% ±<0.1
$50,000 to $74,999	2,254 ±453	17.8% ±3.5	17.0% ±0.6	15.5% ±<0.1
$75,000 to $99,999	1,643 ±341	12.9% ±2.6	13.7% ±0.5	12.6% ±<0.1
$100,000 to $149,999	2,646 ±457	20.9% ±3.5	18.9% ±0.6	17.5% ±<0.1
$150,000 to $199,999	1,501 ±347	11.8% ±2.7	9.5% ±0.5	9.6% ±<0.1
$200,000 or more	1,137 ±313	9.0% ±2.4	8.5% ±0.5	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 Gillette city by age, ACS 2020–2024
Age	Below poverty	Rate	Wyoming	United States
All ages	3,227 ±752	9.8% ±2.3	10.5% ±0.6	12.5% ±0.1
Under 18	787 ±293	8.3% ±3.0	11.7% ±0.9	16.1% ±0.1
18 to 59	1,709 ±491	9.9% ±2.8	10.8% ±0.6	11.6% ±0.1
60 and over	731 ±271	12.3% ±4.4	8.8% ±0.6	11.0% ±<0.1

Housing, 2020–2024

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Housing in Gillette city, ACS 2020–2024
Measure	Gillette city	Wyoming	United States
Housing units	14,216 ±393	277,141 ±187	143,775,355 ±10,234
Occupied	89.3% ±2.5	87.8% ±0.5	89.9% ±0.1
Vacant	10.7% ±2.7	12.2% ±0.6	10.1% ±0.1
Owner occupied	73.2% ±3.4	71.8% ±0.6	65.2% ±0.3
Renter occupied	26.8% ±3.9	28.2% ±0.6	34.8% ±0.1
Median home value	$264,500 ±$11,650	$309,700 ±$3,824	$332,700 ±$236
Median gross rent	$976 ±$77	$992 ±$17	$1,413 ±$2
Median year built	1991 ±4	1981 ±2	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 Gillette city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Wyoming	United States
Hispanic or Latino	3,860 ±375	11.5% ±1.1	10.7% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	27,207 ±505	81.4% ±1.5	81.4% ±0.2	57.4% ±<0.1
Black alone, not Hispanic	43 to 257	0.1% to 0.8%	0.8% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 255	0% to 0.8%	0.8% ±0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	301 ±107	0.9% ±0.3	1.6% ±0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 27	0% to 0.1%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 84	0% to 0.3%	0.7% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,763 ±529	5.3% ±1.6	4.0% ±0.2	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 Gillette city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Wyoming	United States
Born in the state	13,850 ±793	41.4% ±2.4	41.6% ±0.6	57.3% ±<0.1
Born in another state	17,936 ±819	53.7% ±2.4	54.0% ±0.6	26.9% ±<0.1
Born a citizen outside the states	86 to 778	0.3% to 2.3%	0.9% ±0.1	1.7% ±<0.1
Born abroad	1,213 ±452	3.6% ±1.4	3.5% ±0.2	14.1% ±<0.1
Naturalized citizens	587 ±244	1.8% ±0.7	1.6% ±0.1	7.4% ±<0.1
Not citizens	626 ±300	1.9% ±0.9	1.9% ±0.2	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%.

Gillette city among the places of Wyoming

3rd of 17 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Wyoming page.

Places of Wyoming near Gillette city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Cheyenne city	65,239 ±73
Casper city	58,839 ±39
Gillette city	33,431 ±22
Laramie city	32,234 ±20
Rock Springs city	23,127 ±26
Sheridan city	19,285 ±20
Evanston city	11,800 ±30
Green River city	11,581 ±34

Elsewhere on the site

Reported crime in Gillette city, Wyoming

Rankings this appears in

No. 2 Places in Wyoming by homeownership rate
No. 3 Places in Wyoming by foreign-born share
No. 3 Places in Wyoming by median household income
No. 3 Places in Wyoming by median rent
No. 3 Places in Wyoming by per capita income
No. 4 Places in Wyoming by poverty rate

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026