Seneca, SD Population

Overview

41

Total Population

63.9

Median age

41.46%

Female population %

141.2:100

Gender ratio (M:F)

60-64 years

Largest age group

78.3

Total dependency ratio

White

Largest racial group

Zero

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Seneca is 63.9, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Seneca's population under 18 was 4.88%, compared to the 22.51% nationwide.
Seneca's elderly or the senior population (over 65 age) was 43.90% as compared to 16.04% nationwide.
Of the total population in Seneca, 0.00% were under the age of 15, 4.88% aged 15 to 29, 51.22% aged 30 to 64, 43.90% aged 65 to 84, and 0.00% were 85 years of age and older.

There are 7 less females than males in Seneca:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 41.46% females and 58.54% males in Seneca, SD.
The Seneca, SD gender ratio is 141.2:100 i.e. 141.2 men to 100 women (1.412).
For male population, the largest age group is 60-64 years with a population of 11.
For the female population, the largest age group is 55-59 years with a population of 4.

Seneca's population is non diverse:

Racial distribution of Seneca population: 100% are White.
Seneca's racial breakdown clearly shows that there is an absolute majority of White population in the town.
By ethnicity, Zero is Hispanic or Latino (of any race), and 41 (100% of the total population) is Non-Hispanic.
The largest racial group in Seneca is White with a population of 41 (100% of the total population).

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

The peak population was 58 in the year 2000
From 2000 to 2010, Seneca's population decreased by 20 (34.48%), as compared to the national growth of 9.63%.
From 2010 to 2020, Seneca's population decreased by 16 (42.11%), 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, Seneca's population was lowest in year 2020 at 22.