Jefferson City, MT Demographics

A map of Jefferson City's Population by Race

Jefferson City, Montana has an estimated population of 533, a large decrease from the 597 recorded in the 2020 Census. The population is 96.2% White, 3.8% Multiracial, 0.0% Black, 0.0% Asian, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Jefferson City, with one dot drawn for each person counted by the Census, color-coded by race.

Jefferson City has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Montana overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Jefferson City, that probability was 26.4% in 2020 and 7.2% in the most recent ACS estimates.

Jefferson City is ranked the 150th most populous place in Montana, out of 497 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Jefferson City was ranked the 140th most populous place in the 2020 Census.

Jefferson City's White Population

513 residents of Jefferson City, or 96.2% of the population, identify as White. The share of White residents in Jefferson City is considerably higher than in Montana overall, where 83.6% of the population is White. Jefferson City ranks 346th statewide in terms of White residents as a share of the population, out of 497 places.

Since the 2020 Census, Jefferson City's White population has remained roughly the same. White residents' share of Jefferson City's population has increased from 85.3% to 96.2%.

Jefferson City is more White than neighboring Clancy (88.8% White), Boulder (89.9% White), and Montana City (94.9% White). Jefferson City is less White than neighboring Elkhorn (100% White), and Unionville (98.5% White).

Jefferson City's Black Population

0 residents of Jefferson City, or 0.0% of the population, identify as Black. The share of Black residents in Jefferson City is comparable to the share in Montana overall, where 0.4% of the population is Black. Jefferson City ranks 179th statewide in terms of Black residents as a share of the population, out of 497 places.

Since the 2020 Census, Jefferson City's Black population has grown from 0 to an estimated 0. Black residents' share of Jefferson City's population has remained roughly unchanged at 0.0%.

Jefferson City's Asian Population

0 residents of Jefferson City, or 0.0% of the population, identify as Asian. The share of Asian residents in Jefferson City is comparable to the share in Montana overall, where 0.8% of the population is Asian. Jefferson City ranks 166th statewide in terms of Asian residents as a share of the population, out of 497 places.

Since the 2020 Census, Jefferson City's Asian population has declined by an estimated 100.0%. Asian residents' share of Jefferson City's population has remained roughly unchanged at 0.0%.

Jefferson City is less Asian than neighboring Montana City (0.3% Asian), and Unionville (1.5% Asian).

Jefferson City's Hispanic Population

0 residents of Jefferson City, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Jefferson City is slightly lower than in Montana overall, where 4.6% of the population is Hispanic. Jefferson City ranks 135th statewide in terms of Hispanic residents as a share of the population, out of 497 places.

Since the 2020 Census, Jefferson City's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Jefferson City's population has decreased from 4.0% to 0.0%.

Jefferson City is less Hispanic than neighboring Clancy (1% Hispanic), Boulder (2.8% Hispanic), and Montana City (2.1% Hispanic).

Jefferson City's Native American/Other Population

0 residents of Jefferson City, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Jefferson City is lower than in Montana overall, where 5.9% of the population is Native American/Other. Jefferson City ranks 187th statewide in terms of Native American/Other residents as a share of the population, out of 497 places.

Since the 2020 Census, Jefferson City's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Jefferson City's population has decreased from 2.3% to 0.0%.

Jefferson City is less Native American/Other than neighboring Clancy (2% Native American/Other), Boulder (4.6% Native American/Other), and Montana City (1.1% Native American/Other).

Jefferson City's Multiracial Population

20 residents of Jefferson City, or 3.8% of the population, identify as Multiracial. The share of Multiracial residents in Jefferson City is comparable to the share in Montana overall, where 4.7% of the population is Multiracial. Jefferson City ranks 65th statewide in terms of Multiracial residents as a share of the population, out of 497 places.

Since the 2020 Census, Jefferson City's Multiracial population has declined by an estimated 58.3%. Multiracial residents' share of Jefferson City's population has decreased from 8.0% to 3.8%.

Jefferson City is more Multiracial than neighboring Elkhorn (0% Multiracial), Boulder (2.7% Multiracial), Montana City (1.6% Multiracial), and Unionville (0% Multiracial). Jefferson City is less Multiracial than neighboring Clancy (8.3% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.