Jefferson City is home to 533 people in Montana. At a median age of 55.2, this is an older place than the country as a whole. 100% of homes are owner-occupied. The population has more than doubled since 2000, adding 238 people. That is roughly 73% ahead of the Montana median. That puts it in the top 3% of US cities for household income.
At a glance
Wealthier
median household income $125,682, above the US median
US median: $82,259
Older
median age 55.2
US median: 38.9
Less educated
25% hold a bachelor's degree
US average: 36%
Owner-heavy
100% owner-occupied
US average: 65%
Unique to this place
What stands out about Jefferson City
What changed most since 2000
Homes owned by their occupants82.7% → 100.0%(+17.3 pts)US over the same years: −1.1 pts
Median age40.5 → 55.2(+14.7 years)US over the same years: +3.7 years
Population295 → 533(+81%)US over the same years: +19%
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)63.6%(21)
US avg: 26.4%
Gulf War (1990s)0%(0)
US avg: 24.3%
Vietnam era36.4%(12)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 33 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
Jefferson City, decade by decade
Jefferson City 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
2000
295
$96,775
$223,881
27.7%
10.7
2010
472
$49,352
$371,007
35.5%
11.9
2020
597
$74,196
$261,194
15.8%
33.8
2024
533
$125,682
–
25.5%
9.0
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.
