Lake County, MT Population

Overview

31,030

Total Population

42.7

Median age

50.28%

Female population %

98.9:100

Gender ratio (M:F)

60-64 years

Largest age group

70.7

Total dependency ratio

White

Largest racial group

1,396

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Lake County's population is old compared to the rest of the country:

The median age in Lake County is 42.7, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Lake County's population under 18 was 23.37%, compared to the 22.51% nationwide.
Lake County's elderly or the senior population (over 65 age) was 22.15% as compared to 16.04% nationwide.
Of the total population in Lake County, 19.27% were under the age of 15, 17.07% aged 15 to 29, 41.51% aged 30 to 64, 20.49% aged 65 to 84, and 1.66% were 85 years of age and older.

There are 174 more females than males in Lake County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.28% females and 49.72% males in Lake County, MT.
The Lake County, MT gender ratio is 98.9:100 i.e. 98.9 men to 100 women (0.989).
For male population, the largest age group is 10-14 years with a population of 1,240.
For the female population, the largest age group is 60-64 years with a population of 1,386.

Lake County's population has become increasingly diverse:

Racial distribution of Lake County population: 65.45% are White, 0.36% are Black or African American, 22.68% are American Indian and Alaska Native, 0.63% are Asian, 0.15% are Native Hawaiian and other Pacific Islander, 0.90% are some other race and 9.82% are multiracial.
Lake County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 1,396 is Hispanic or Latino (of any race), and 29,634 (95.50% of the total population) is Non-Hispanic.
The largest racial group in Lake County is White with a population of 20,308 (65.45% of the total population).

Lake County's population has not reached its peak yet and is showing a trend of further growth:

The peak population was 32,853 in the year 2022
From 2000 to 2010, Lake County's population increased by 2,196 (8.26%), as compared to the national growth of 9.63%.
From 2010 to 2020, Lake County's population increased by 2,454 (8.52%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Lake County's population was lowest in year 2000 at 26,596.