Lewis and Clark County, Montana's estimated 2024 population is 76,238 with a growth rate of 1.64% in the past year according to the most recent United States census data. Lewis and Clark County, Montana is the 6th largest county in Montana. The 2010 population was 63,578 and has seen a growth of 19.91% since that time.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 82,373 | 1,227 | 1.51% |
| 2028 | 81,146 | 1,227 | 1.54% |
| 2027 | 79,919 | 1,227 | 1.56% |
| 2026 | 78,692 | 1,227 | 1.58% |
| 2025 | 77,465 | 1,227 | 1.61% |
| 2024 | 76,238 | 1,227 | 1.64% |
| 2023 | 75,011 | 1,227 | 1.66% |
| 2022 | 73,784 | 1,277 | 1.76% |
| 2021 | 72,507 | 1,330 | 1.87% |
| 2020 | 71,177 | 1,599 | 2.3% |
| 2019 | 69,578 | 803 | 1.17% |
| 2018 | 68,775 | 787 | 1.16% |
| 2017 | 67,988 | 987 | 1.47% |
| 2016 | 67,001 | 693 | 1.05% |
| 2015 | 66,308 | 544 | 0.83% |
| 2014 | 65,764 | 487 | 0.75% |
| 2013 | 65,277 | 517 | 0.8% |
| 2012 | 64,760 | 476 | 0.74% |
| 2011 | 64,284 | 706 | 1.11% |
| 2010 | 63,578 | 0 | 0% |
| 1990 | 47,495 | 4,456 | 10.35% |
| 1980 | 43,039 | 9,758 | 29.32% |
| 1970 | 33,281 | 5,275 | 18.84% |
| 1960 | 28,006 | 3,466 | 14.12% |
| 1950 | 24,540 | 2,409 | 10.89% |
| 1940 | 22,131 | 3,907 | 21.44% |
| 1930 | 18,224 | -436 | -2.34% |
| 1920 | 18,660 | -3,193 | -14.61% |
| 1910 | 21,853 | 2,682 | 13.99% |
| 1900 | 19,171 | 26 | 0.14% |
| 1890 | 19,145 | 12,624 | 193.59% |
| 1880 | 6,521 | 1,481 | 29.38% |
| 1870 | 5,040 | -77,333 | -93.88% |
Race | Population | Percentage (of total) |
|---|---|---|
| White | 66,397 | 91.48% |
| Two or more races | 4,097 | 5.64% |
| Native American | 655 | 0.9% |
| Other race | 526 | 0.72% |
| Asian | 484 | 0.67% |
| Black or African American | 421 | 0.58% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
White
Two or more races
Native American
Other race
Asian
Black or African American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 30,655 | 2.31 | 69.7 | 30.3 |
| Married | 14,519 | 2.96 | 86.4 | 13.6 |
| Non Family | 12,456 | 1.28 | 51.2 | 48.8 |
| Female | 2,218 | 3.31 | 63.9 | 36.1 |
| Male | 1,462 | 3.19 | 69.9 | 30.1 |
2.93
Average Family Size
2.31
Average Household Size
69.7%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 2,186 | 4.24% |
| Associates Degree | 5,071 | 9.84% |
| Bachelors Degree | 14,352 | 27.86% |
| Graduate Degree | 7,704 | 14.95% |
| High School Graduate | 12,105 | 23.5% |
| Less Than 9th Grade | 467 | 0.91% |
| Some College | 9,634 | 18.7% |
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
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 46,906 | 44,682 | 20,482 |
| 2+ Races | 2,496 | 2,332 | 923 |
| Hispanic | 1,565 | 1,452 | 502 |
| Native American | 471 | 296 | 13 |
| Other Race | 381 | 380 | 94 |
| Asian | 322 | 256 | 185 |
| Black | 208 | 208 | 98 |
The highest rate of high school graduation is among black people with a rate of 100%.
The highest rate of bachelors degrees is among asian people with a rate of 57.45%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $58,347 | $69,942 | $47,962 |
| Graduate Degree | $76,387 | $80,590 | $71,165 |
| High School Graduate | $40,721 | $47,180 | $31,811 |
| Less Than 9th Grade | $38,145 | $40,839 | $30,400 |
| Overall | $51,226 | $59,175 | $43,910 |
| Some College | $43,474 | $52,302 | $37,813 |
$51,226
Average Earnings
$59,175
Average Male
$43,910
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
96.92% of Lewis and Clark County, Montana residents speak only English, while 3.08% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.59% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 63,566 | 5,540 | 8.72% |
| Multiple | 4,043 | 285 | 7.05% |
| Hispanic | 2,761 | 275 | 9.96% |
| Native | 598 | 178 | 29.77% |
| Black | 416 | 35 | 8.41% |
| Other | 513 | 9 | 1.75% |
| Asian | 469 | 7 | 1.49% |
8.72%
Overall Poverty Rate
7.85%
Male Poverty Rate
9.57%
Female Poverty Rate
The race most likely to be in poverty in Lewis and Clark County, Montana is Native, with 29.77% below the poverty level.
The race least likely to be in poverty in Lewis and Clark County, Montana is Asian, with 1.49% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.62%. Among those working part-time, it was 13.4%, and for those that did not work, the poverty rate was 15.07%.
rate
Rate | Poverty |
|---|---|
| Less Than 9th Grade | 34.47% |
| High School | 10.63% |
| Some College | 8.4% |
| Bachelors or Greater | 2.65% |
rate
Rate | Poverty |
|---|---|
| Female Unemployed | 45.02% |
| Male Unemployed | 12.83% |
| Female Employed | 5.48% |
| Male Employed | 4.75% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $99,043 | $123,293 |
| Households | $74,543 | $100,531 |
| Married Families | $109,610 | $134,723 |
| Non Families | $45,120 | $63,383 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
51.4%
Overall Marriage Rate
52.3%
Male Marriage Rate
50.6%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
5,877
Number of Veterans
5,126
Male Veterans
751
Female Veterans
War | Veterans |
|---|---|
| Vietnam | 2,149 |
| Second Gulf War | 1,750 |
| First Gulf War | 1,438 |
| Korea | 133 |
| World War II | 33 |
count
Age Group | Veterans |
|---|---|
| 35 to 54 | 1,653 |
| 65 to 74 | 1,500 |
| 55 to 64 | 1,261 |
| 75+ | 1,223 |
| 18 to 34 | 240 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 5,392 | 10.36% |
| 2+ Races | 376 | 12.5% |
| Hispanic | 107 | 5.99% |
| Native American | 38 | 6.74% |
| Asian | 30 | 8.55% |
| Other Race | 24 | 5.96% |
| Black | 17 | 6.94% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
6.69%
Veteran Poverty Rate
28.8%
Veteran Disability Rate
LaborForceParticipation
63.7%
Labor Force Participation
60.8%
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
52.65%
Born in Lewis and Clark County, Montana
98.13%
Native Born
1.87%
Foreign Born
0.73%
Non Citizen
1.14%
Naturalized
98.13% of Lewis and Clark County, Montana residents were born in the United States, with 52.65% having been born in Montana. 0.73% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.