Overview
1,265
Total Population
45.2
Median age
45.69%
Female population %
118.9:100
Gender ratio (M:F)
5-9 years
Largest age group
72.8
Total dependency ratio
White
Largest racial group
59
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Watertown township's population is old compared to the rest of the country:
- The median age in Watertown township is 45.2, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Watertown township's population under 18 was 20.16%, compared to the 22.51% nationwide.
- Watertown township's elderly or the senior population (over 65 age) was 24.66% as compared to 16.04% nationwide.
- Of the total population in Watertown township, 17.47% were under the age of 15, 18.02% aged 15 to 29, 39.84% aged 30 to 64, 23.87% aged 65 to 84, and 0.79% were 85 years of age and older.

Read more about Watertown township, Sanilac County, Michigan population by age ➔
Gender
There are 109 less females than males in Watertown township:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 45.69% females and 54.31% males in Watertown township, Sanilac County, Michigan.
- The Watertown township, Sanilac County, Michigan gender ratio is 118.9:100 i.e. 118.9 men to 100 women (1.189).
- For male population, the largest age group is 5-9 years with a population of 72.
- For the female population, the largest age group is 65-69 years with a population of 87.

Read more about Watertown township, Sanilac County, Michigan population by gender ➔
Race / Ethnicity
Watertown township's population has become increasingly diverse:
- Racial distribution of Watertown township population: 97.79% are White, 0.24% are American Indian and Alaska Native, 0.16% are Asian, 0.32% are some other race and 1.50% are multiracial.
- Watertown township's racial breakdown clearly shows that there is an absolute majority of White population in the township.
- By ethnicity, 59 is Hispanic or Latino (of any race), and 1,206 (95.34% of the total population) is Non-Hispanic.
- The largest racial group in Watertown township is White with a population of 1,237 (97.79% of the total population).

Read more about Watertown township, Sanilac County, Michigan population by race ➔
Year by year
Watertown township's population has already reached its peak and is showing a trend of decline:
- The peak population was 1,381 in the year 2001
- From 2000 to 2010, Watertown township's population decreased by 54 (3.92%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Watertown township's population decreased by 70 (5.30%), 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, Watertown township's population was lowest in year 2019 at 1,247.

Read more about Watertown township, Sanilac County, Michigan population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
- U.S. Census Bureau Population Estimates Population Estimates Program (PEP)