Gillette is home to 33,431 people in Wyoming. Since 2000 the city has risen by half, up 13,785 people. The median age is 34.2, younger than the US median of 38.9. 25% of adults hold a bachelor's degree or higher. The foreign-born share is 4%. 73% of homes are owner-occupied.
At a glance
Average income
median household income $81,316, near the US median
US median: $82,259
Younger
median age 34.2
US median: 38.9
Less educated
25% hold a bachelor's degree
US average: 36%
Less affordable
home values up 58%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Gillette
What changed most since 1990
Population17,635 → 33,431(+90%)US over the same years: +35%
Homes owned by their occupants63.1% → 73.2%(+10.0 pts)US over the same years: +0.9 pts
Adults with a bachelor's degree17.9% → 24.8%(+6.9 pts)US over the same years: +15.3 pts
Its weight in Campbell County
Gillette's population equals 71% of Campbell County's. Its number of people who work from home equals 45% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)27%(459)
US avg: 26.4%
Gulf War (1990s)26.2%(444)
US avg: 24.3%
Vietnam era30.5%(517)
US avg: 33.1%
Korean War0.3%(5)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 1,697 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Gillette, decade by decade
Gillette population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
17,635
$85,279
$164,165
17.9%
8.9
2000
19,646
$84,745
$167,410
17.8%
15.7
2010
29,087
$104,580
$272,609
19.9%
29.0
2020
33,403
$89,530
$263,497
19.8%
38.3
2024
33,431
$81,316
$264,500
24.8%
40.0
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
