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Source: U.S. Census Bureau, Population Estimates Program, Vintage 2024 — figures cover the April 1, 2020 estimates base through July 1, 2024
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U.S. Census Bureau · Vintage 2024

Jefferson County, Montana: population and components of change

Source: U.S. Census Bureau, Population Estimates Program, Vintage 2024: County Population Totals and Components of Change 2020-2024 (CO-EST2024-ALLDATA). Figures cover the April 1, 2020 estimates base through July 1, 2024; data fetched 2026-10-30T08:41:21Z.

Values are printed as the U.S. Census Bureau reports them. A blank source value is printed as “not available”.
Jefferson County
ItemValueAs reported
CountyJefferson CountyJefferson County
StateMontanaMontana
State FIPS code3030
County FIPS code043043
Census region (code)44
Census division (code)88
Estimates base, April 1, 202012,08212082
Resident population, July 1, 202012,14212142
Resident population, July 1, 202112,47212472
Resident population, July 1, 202212,86412864
Resident population, July 1, 202313,08613086
Resident population, July 1, 202413,30413304
Numeric population change, 2023 to 2024218218
Births, year to July 1, 2024111111
Deaths, year to July 1, 2024138138
Natural change (births minus deaths), year to July 1, 2024-27-27
International migration, year to July 1, 202433
Domestic migration, year to July 1, 2024244244
Residual, year to July 1, 2024-2-2
Birth rate per 1,000 population, year to July 1, 20248.41238.4122773778
Death rate per 1,000 population, year to July 1, 202410.458510.45850701
Natural change rate per 1,000 population, year to July 1, 2024-2.0462-2.046229632
International migration rate per 1,000 population, year to July 1, 20240.22740.227358848
Domestic migration rate per 1,000 population, year to July 1, 202418.491918.491852975
Group quarters population, July 1, 2024269269

Values as reported by the source: county_name=Jefferson County, state_name=Montana, state_fips=30, county_fips=043, region=4, division=8, estimates_base_2020=12082, pop_2020=12142, pop_2021=12472, pop_2022=12864, pop_2023=13086, pop_2024=13304, npopchg_2024=218, births_2024=111, deaths_2024=138, naturalchg_2024=-27, internationalmig_2024=3, domesticmig_2024=244, residual_2024=-2, rbirth_2024=8.4122773778, rdeath_2024=10.45850701, rnaturalchg_2024=-2.046229632, rinternationalmig_2024=0.227358848, rdomesticmig_2024=18.491852975, gq_estimates_2024=269