Twin Falls County, ID Population

Overview

89,128

Total Population

35.3

Median age

50.40%

Female population %

98.4:100

Gender ratio (M:F)

10-14 years

Largest age group

62.3

Total dependency ratio

White

Largest racial group

15,279

Hispanic population

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

TABLE OF CONTENTS

Age

Twin Falls County's population is young compared to the rest of the country:

The median age in Twin Falls County is 35.3, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Twin Falls County's population under 18 was 27.47%, compared to the 22.51% nationwide.
Twin Falls County's elderly or the senior population (over 65 age) was 15.52% as compared to 16.04% nationwide.
Of the total population in Twin Falls County, 22.86% were under the age of 15, 19.70% aged 15 to 29, 41.92% aged 30 to 64, 14.19% aged 65 to 84, and 1.33% were 85 years of age and older.

There are 720 more females than males in Twin Falls County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.40% females and 49.60% males in Twin Falls County, ID.
The Twin Falls County, ID gender ratio is 98.4:100 i.e. 98.4 men to 100 women (0.984).
For male population, the largest age group is 10-14 years with a population of 3,952.
For the female population, the largest age group is 5-9 years with a population of 3,523.

Twin Falls County's population has become increasingly diverse:

Racial distribution of Twin Falls County population: 85.57% are White, 0.67% are Black or African American, 0.53% are American Indian and Alaska Native, 1.61% are Asian, 0.02% are Native Hawaiian and other Pacific Islander, 4.48% are some other race and 7.13% are multiracial.
Twin Falls County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 15,279 is Hispanic or Latino (of any race), and 73,849 (82.86% of the total population) is Non-Hispanic.
The largest racial group in Twin Falls County is White with a population of 76,266 (85.57% of the total population).

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

The peak population was 93,696 in the year 2022
From 2000 to 2010, Twin Falls County's population increased by 13,181 (20.48%), as compared to the national growth of 9.63%.
From 2010 to 2020, Twin Falls County's population increased by 12,814 (16.52%), 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, Twin Falls County's population was lowest in year 2000 at 64,366.