Jefferson, SD Population

Overview

667

Total Population

34.0

Median age

50.67%

Female population %

97.3:100

Gender ratio (M:F)

25-29 years

Largest age group

58.8

Total dependency ratio

White

Largest racial group

25

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Jefferson is 34.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Jefferson's population under 18 was 27.44%, compared to the 22.51% nationwide.
Jefferson's elderly or the senior population (over 65 age) was 18.44% as compared to 16.04% nationwide.
Of the total population in Jefferson, 18.59% were under the age of 15, 25.04% aged 15 to 29, 37.93% aged 30 to 64, 17.84% aged 65 to 84, and 0.60% were 85 years of age and older.

There are 9 more females than males in Jefferson:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.67% females and 49.33% males in Jefferson, SD.
The Jefferson, SD gender ratio is 97.3:100 i.e. 97.3 men to 100 women (0.973).
For male population, the largest age group is 15-19 years with a population of 48.
For the female population, the largest age group is 25-29 years with a population of 51.

Jefferson's population is moderately diverse:

Racial distribution of Jefferson population: 93.25% are White, 3.30% are American Indian and Alaska Native, 1.20% are some other race and 2.25% are multiracial.
Jefferson's racial breakdown clearly shows that there is an absolute majority of White population in the city.
By ethnicity, 25 is Hispanic or Latino (of any race), and 642 (96.25% of the total population) is Non-Hispanic.
The largest racial group in Jefferson is White with a population of 622 (93.25% of the total population).

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

The peak population was 617 in the year 2009
From 2000 to 2010, Jefferson's population decreased by 34 (5.81%), as compared to the national growth of 9.63%.
From 2010 to 2020, Jefferson's population decreased by 78 (14.16%), 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, Jefferson's population was lowest in year 2022 at 457.