Yellowstone County, Montana's estimated 2024 population is 171,816 with a growth rate of 0.57% in the past year according to the most recent United States census data. Yellowstone County, Montana is the largest county in Montana. The 2010 population was 148,405 and has seen a growth of 15.78% since that time.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 176,681 | 973 | 0.55% |
| 2028 | 175,708 | 973 | 0.56% |
| 2027 | 174,735 | 973 | 0.56% |
| 2026 | 173,762 | 973 | 0.56% |
| 2025 | 172,789 | 973 | 0.57% |
| 2024 | 171,816 | 973 | 0.57% |
| 2023 | 170,843 | 973 | 0.57% |
| 2022 | 169,870 | 2,432 | 1.45% |
| 2021 | 167,438 | 2,220 | 1.34% |
| 2020 | 165,218 | 3,869 | 2.4% |
| 2019 | 161,349 | 1,231 | 0.77% |
| 2018 | 160,118 | 693 | 0.43% |
| 2017 | 159,425 | 1,359 | 0.86% |
| 2016 | 158,066 | 1,408 | 0.9% |
| 2015 | 156,658 | 1,279 | 0.82% |
| 2014 | 155,379 | 1,522 | 0.99% |
| 2013 | 153,857 | 2,167 | 1.43% |
| 2012 | 151,690 | 1,885 | 1.26% |
| 2011 | 149,805 | 1,400 | 0.94% |
| 2010 | 148,405 | 0 | 0% |
| 1990 | 113,419 | 5,384 | 4.98% |
| 1980 | 108,035 | 20,668 | 23.66% |
| 1970 | 87,367 | 8,351 | 10.57% |
| 1960 | 79,016 | 23,141 | 41.42% |
| 1950 | 55,875 | 14,693 | 35.68% |
| 1940 | 41,182 | 10,397 | 33.77% |
| 1930 | 30,785 | 1,185 | 4% |
| 1920 | 29,600 | 6,656 | 29.01% |
| 1910 | 22,944 | 16,732 | 269.35% |
| 1900 | 6,212 | 4,147 | 200.82% |
| 1890 | 2,065 | -174,616 | -98.83% |
White
Two or more races
Native American
Other race
Black or African American
Asian
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 67,897 | 2.39 | 69.5 | 30.5 |
| Married | 32,239 | 3.08 | 87.2 | 12.8 |
| Non Family | 26,225 | 1.25 | 53 | 47 |
| Female | 5,775 | 3.14 | 57 | 43 |
| Male | 3,658 | 3.24 | 52.5 | 47.5 |
3.01
Average Family Size
2.39
Average Household Size
69.5%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among islander people with a rate of 100%.
The highest rate of bachelors degrees is among asian people with a rate of 56.05%.
All
Male
Female
$45,556
Average Earnings
$55,672
Average Male
$37,500
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
96.24% of Yellowstone County, Montana residents speak only English, while 3.76% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.44% of the population.
rate
10.71%
Overall Poverty Rate
10.21%
Male Poverty Rate
11.21%
Female Poverty Rate
The race most likely to be in poverty in Yellowstone County, Montana is Asian, with 31.46% below the poverty level.
The race least likely to be in poverty in Yellowstone County, Montana is Islander, with 0.43% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.7%. Among those working part-time, it was 12.91%, and for those that did not work, the poverty rate was 18.31%.
Married
Widowed
Divorced
Separated
NeverMarried
50.4%
Overall Marriage Rate
51.2%
Male Marriage Rate
49.5%
Female Marriage Rate
male
female
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 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
5.5%
Veteran Poverty Rate
32.6%
Veteran Disability Rate
LaborForceParticipation
66.2%
Labor Force Participation
63.9%
Employment Rate
3.5%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
58.5%
Born in Yellowstone County, Montana
98.12%
Native Born
1.88%
Foreign Born
0.85%
Non Citizen
1.02%
Naturalized
98.12% of Yellowstone County, Montana residents were born in the United States, with 58.5% having been born in Montana. 0.85% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.