Brown County, SD Population

Overview

38,471

Total Population

37.0

Median age

50.48%

Female population %

98.1:100

Gender ratio (M:F)

20-24 years

Largest age group

59.2

Total dependency ratio

White

Largest racial group

1,383

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Brown County is 37.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Brown County's population under 18 was 23.60%, compared to the 22.51% nationwide.
Brown County's elderly or the senior population (over 65 age) was 17.28% as compared to 16.04% nationwide.
Of the total population in Brown County, 19.90% were under the age of 15, 21.04% aged 15 to 29, 41.77% aged 30 to 64, 14.68% aged 65 to 84, and 2.60% were 85 years of age and older.

There are 369 more females than males in Brown County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.48% females and 49.52% males in Brown County, SD.
The Brown County, SD gender ratio is 98.1:100 i.e. 98.1 men to 100 women (0.981).
For male population, the largest age group is 20-24 years with a population of 1,535.
For the female population, the largest age group is 20-24 years with a population of 1,500.

Brown County's population has become increasingly diverse:

Racial distribution of Brown County population: 86.59% are White, 2.50% are Black or African American, 3.46% are American Indian and Alaska Native, 3.48% are Asian, 0.16% are Native Hawaiian and other Pacific Islander, 0.80% are some other race and 3.01% are multiracial.
Brown County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 1,383 is Hispanic or Latino (of any race), and 37,088 (96.41% of the total population) is Non-Hispanic.
The largest racial group in Brown County is White with a population of 33,313 (86.59% of the total population).

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

The peak population was 39,332 in the year 2017
From 2000 to 2010, Brown County's population increased by 1,195 (3.37%), as compared to the national growth of 9.63%.
From 2010 to 2020, Brown County's population increased by 1,567 (4.27%), 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, Brown County's population was lowest in year 2003 at 35,039.