Overview
681
Total Population
58.4
Median age
50.07%
Female population %
99.7:100
Gender ratio (M:F)
60-64 years
Largest age group
87.6
Total dependency ratio
White
Largest racial group
1
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Port Sanilac's population is old compared to the rest of the country:
- The median age in Port Sanilac is 58.4, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Port Sanilac's population under 18 was 22.17%, compared to the 22.51% nationwide.
- Port Sanilac's elderly or the senior population (over 65 age) was 34.07% as compared to 16.04% nationwide.
- Of the total population in Port Sanilac, 12.63% were under the age of 15, 16.89% aged 15 to 29, 36.42% aged 30 to 64, 29.96% aged 65 to 84, and 4.11% were 85 years of age and older.

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Gender
There are 1 more females than males in Port Sanilac:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.07% females and 49.93% males in Port Sanilac, MI.
- The Port Sanilac, MI gender ratio is 99.7:100 i.e. 99.7 men to 100 women (0.997).
- For male population, the largest age group is 65-69 years with a population of 46.
- For the female population, the largest age group is 60-64 years with a population of 48.

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Race / Ethnicity
Port Sanilac's population is moderately diverse:
- Racial distribution of Port Sanilac population: 99.12% are White, 0.44% are Asian and 0.44% are multiracial.
- Port Sanilac's racial breakdown clearly shows that there is an absolute majority of White population in the village.
- By ethnicity, 1 is Hispanic or Latino (of any race), and 671 (98.53% of the total population) is Non-Hispanic.
- The largest racial group in Port Sanilac is White with a population of 675 (99.12% of the total population).

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Year by year
Port Sanilac's population has already reached its peak and is showing a trend of decline:
- The peak population was 665 in the year 2000
- From 2000 to 2010, Port Sanilac's population decreased by 45 (6.77%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Port Sanilac's population decreased by 53 (8.55%), 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, Port Sanilac's population was lowest in year 2020 at 567.

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References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
- U.S. Census Bureau Population Estimates Population Estimates Program (PEP)