Seneca, OR Population

Overview

206

Total Population

54.3

Median age

51.46%

Female population %

94.3:100

Gender ratio (M:F)

30-34 years

Largest age group

83.9

Total dependency ratio

White

Largest racial group

12

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 54.3, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Seneca's population under 18 was 15.05%, compared to the 22.51% nationwide.
Seneca's elderly or the senior population (over 65 age) was 30.58% as compared to 16.04% nationwide.
Of the total population in Seneca, 15.05% were under the age of 15, 6.80% aged 15 to 29, 47.57% aged 30 to 64, 17.96% aged 65 to 84, and 12.62% were 85 years of age and older.

There are 6 more females than males in Seneca:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.46% females and 48.54% males in Seneca, OR.
The Seneca, OR gender ratio is 94.3:100 i.e. 94.3 men to 100 women (0.943).
For male population, the largest age group is 30-34 years with a population of 18.
For the female population, the largest age group is 85+ years with a population of 20.

Seneca's population is moderately diverse:

Racial distribution of Seneca population: 90.78% are White, 2.43% are American Indian and Alaska Native and 6.80% are multiracial.
Seneca's racial breakdown clearly shows that there is an absolute majority of White population in the city.
By ethnicity, 12 is Hispanic or Latino (of any race), and 194 (94.17% of the total population) is Non-Hispanic.
The largest racial group in Seneca is White with a population of 187 (90.78% of the total population).

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

The peak population was 226 in the year 2018
From 2000 to 2010, Seneca's population decreased by 18 (8.26%), as compared to the national growth of 9.63%.
From 2010 to 2020, Seneca's population decreased by 34 (17.00%), 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 2022 at 165.