Lake County, SD Population

Overview

11,358

Total Population

44.1

Median age

48.20%

Female population %

107.5:100

Gender ratio (M:F)

60-64 years

Largest age group

64.5

Total dependency ratio

White

Largest racial group

306

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 44.1, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Lake County's population under 18 was 20.10%, compared to the 22.51% nationwide.
Lake County's elderly or the senior population (over 65 age) was 22.41% as compared to 16.04% nationwide.
Of the total population in Lake County, 16.79% were under the age of 15, 19.54% aged 15 to 29, 41.27% aged 30 to 64, 19.73% aged 65 to 84, and 2.68% were 85 years of age and older.

There are 410 less females than males in Lake County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 48.20% females and 51.80% males in Lake County, SD.
The Lake County, SD gender ratio is 107.5:100 i.e. 107.5 men to 100 women (1.075).
For male population, the largest age group is 65-69 years with a population of 516.
For the female population, the largest age group is 60-64 years with a population of 491.

Lake County's population has become increasingly diverse:

Racial distribution of Lake County population: 93.76% are White, 0.40% are Black or African American, 2.30% are American Indian and Alaska Native, 0.08% are Asian, 0.04% are Native Hawaiian and other Pacific Islander, 0.96% are some other race and 2.47% are multiracial.
Lake County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 306 is Hispanic or Latino (of any race), and 11,052 (97.31% of the total population) is Non-Hispanic.
The largest racial group in Lake County is White with a population of 10,649 (93.76% of the total population).

Lake County's population has already reached its peak and is showing a trend of decline:

The peak population was 13,045 in the year 2018
From 2000 to 2010, Lake County's population increased by 66 (0.59%), as compared to the national growth of 9.63%.
From 2010 to 2020, Lake County's population decreased by 270 (2.39%), 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 2021 at 10,863.