Jefferson County, Montana Population 2022
Jefferson County, Montana's estimated population is 12,602 with a growth rate of 1.02% in the past year according to the most recent United States census data. Jefferson County, Montana is the 16th largest county in Montana. The 2010 Population was 11,407 and has seen a growth of 10.48% since this time.
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 1870 | 1,531 | 0.00% | |
| 1880 | 2,464 | 933 | 60.94% |
| 1890 | 6,026 | 3,562 | 144.56% |
| 1900 | 5,330 | -696 | -11.55% |
| 1910 | 5,601 | 271 | 5.08% |
| 1920 | 5,203 | -398 | -7.11% |
| 1930 | 4,133 | -1,070 | -20.57% |
| 1940 | 4,664 | 531 | 12.85% |
| 1950 | 4,014 | -650 | -13.94% |
| 1960 | 4,297 | 283 | 7.05% |
| 1970 | 5,238 | 941 | 21.90% |
| 1980 | 7,029 | 1,791 | 34.19% |
| 1990 | 7,939 | 910 | 12.95% |
| 2010 | 11,407 | 3,468 | 43.68% |
| 2011 | 11,375 | -32 | -0.28% |
| 2012 | 11,318 | -57 | -0.50% |
| 2013 | 11,455 | 137 | 1.21% |
| 2014 | 11,502 | 47 | 0.41% |
| 2015 | 11,572 | 70 | 0.61% |
| 2016 | 11,779 | 207 | 1.79% |
| 2017 | 11,921 | 142 | 1.21% |
| 2018 | 12,094 | 173 | 1.45% |
| 2019 | 12,221 | 127 | 1.05% |
| 2020 | 12,348 | 127 | 1.04% |
| 2021 | 12,475 | 127 | 1.03% |
| 2022 | 12,602 | 127 | 1.02% |
Population by Race
| Race | Population | Percentage |
|---|---|---|
| White | 11,328 | 93.86% |
| Black or African American | 82 | 0.68% |
| American Indian and Alaska Native | 122 | 1.01% |
| Asian | 8 | 0.07% |
| Some Other Race | 146 | 1.21% |
| Two or More Races | 383 | 3.17% |
Jefferson County, Montana Population Pyramid 2022
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 4,445 | 2.65 | 84.2 |
| Married | 2,939 | 3.08 | 90.4 |
| Male | 164 | 2.99 | 57.9 |
| Female | 217 | 3.87 | 70.5 |
| Non Family | 1,125 | 1.27 | 74.6 |
3.04
Average Family Size
2.65
Average Household Size
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 115 | 1.31% |
| 9th to 12th Grade | 326 | 3.72% |
| High School Graduate | 2,411 | 27.51% |
| Some College | 1,818 | 20.74% |
| Associates Degree | 1,007 | 11.49% |
| Bachelors Degree | 2,132 | 24.33% |
| Graduate Degree | 955 | 10.90% |
Jefferson County, Montana Educational Attainment by Race
| Race | Total | High School | Bachelors |
|---|---|---|---|
| Black | 68 | 68 | 62 |
| White | 8,288 | 7,884 | 2,972 |
| Hispanic | 114 | 92 | 30 |
| 2+ Races | 242 | 242 | 25 |
| Other Race | 10 | 1 | 1 |
| Asian | 8 | 8 | |
| Native American | 49 | 34 |
The highest rate of high school graduation is among black people with a rate of 100.00%.
The highest rate of bachelors degrees is among black people with a rate of 91.18%.
$41,201
Average Earnings
$50,890
Average Male
$29,000
Average Female
Jefferson County, Montana Language by Age
Jefferson County, Montana Language
98.26% of Jefferson County, Montana residents speak only English, while 1.74% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.88% of the population.
Jefferson County, Montana Poverty by Race
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 11,042 | 726 | 6.57% |
| Other | NaN% | ||
| Hispanic | 307 | 27 | 8.79% |
| Multiple | 379 | 18 | 4.75% |
6.48%
Overall Poverty Rate
5.78%
Male Poverty Rate
7.21%
Female Poverty Rate
Poverty in Jefferson County, Montana
The race most likely to be in poverty in Jefferson County, Montana is White, with 6.57% below the poverty level.
The race least likely to be in poverty in Jefferson County, Montana is Multiple, with 4.75% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.42%. Among those working part-time, it was 6.62%, and for those that did not work, the poverty rate was 13.37%.
Jefferson County, Montana Marital Status
Marriage Rates
62.4%
Overall Marriage Rate
61.6%
Male Marriage Rate
63.2%
Female Marriage Rate
Jefferson County, Montana Married by Age and Sex
Jefferson County, Montana Marriage
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.
Jefferson County, Montana Marital Status by Race
| Name | Veterans | % of Total |
|---|---|---|
| White | 1,174 | 12.92% |
| Native American | 10 | 16.95% |
| 2+ Races | 19 | 6.23% |
| Hispanic | 3 | 2.22% |
Jefferson County, Montana Veterans by Education
1.10%
Veteran Poverty Rate
44.42%
Veteran Disability Rate
58.4%
Labor Force Participation
56.4%
Employment Rate
3.4%
Unemployment Rate
Origin of Non-Citizens
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
51.26%
Born in Jefferson County, Montana
98.48%
Native Born
1.52%
Foreign Born
0.70%
Non Citizen
0.81%
Naturalized
Place of Birth
98.48% of Jefferson County, Montana residents were born in the United States, with 51.26% having been born in Montana. 0.70% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990