Flathead County, MT Population

Overview

103,400

Total Population

42.3

Median age

49.91%

Female population %

100.4:100

Gender ratio (M:F)

60-64 years

Largest age group

60.6

Total dependency ratio

White

Largest racial group

3,234

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Flathead County is 42.3, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Flathead County's population under 18 was 21.93%, compared to the 22.51% nationwide.
Flathead County's elderly or the senior population (over 65 age) was 19.61% as compared to 16.04% nationwide.
Of the total population in Flathead County, 18.11% were under the age of 15, 16.43% aged 15 to 29, 45.85% aged 30 to 64, 17.88% aged 65 to 84, and 1.72% were 85 years of age and older.

There are 192 less females than males in Flathead County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.91% females and 50.09% males in Flathead County, MT.
The Flathead County, MT gender ratio is 100.4:100 i.e. 100.4 men to 100 women (1.004).
For male population, the largest age group is 60-64 years with a population of 4,220.
For the female population, the largest age group is 60-64 years with a population of 4,716.

Flathead County's population has become increasingly diverse:

Racial distribution of Flathead County population: 92.69% are White, 0.40% are Black or African American, 1.12% are American Indian and Alaska Native, 0.81% are Asian, 0.54% are some other race and 4.43% are multiracial.
Flathead County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 3,234 is Hispanic or Latino (of any race), and 100,166 (96.87% of the total population) is Non-Hispanic.
The largest racial group in Flathead County is White with a population of 95,84 (92.69% of the total population).

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

The peak population was 111,814 in the year 2022
From 2000 to 2010, Flathead County's population increased by 16,097 (21.53%), as compared to the national growth of 9.63%.
From 2010 to 2020, Flathead County's population increased by 13,999 (15.41%), 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, Flathead County's population was lowest in year 2000 at 74,766.