Overview
527
Total Population
43.8
Median age
46.30%
Female population %
116:100
Gender ratio (M:F)
40-44 years
Largest age group
55.5
Total dependency ratio
White
Largest racial group
18
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Onamia township's population is old compared to the rest of the country:
- The median age in Onamia township is 43.8, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Onamia township's population under 18 was 18.22%, compared to the 22.51% nationwide.
- Onamia township's elderly or the senior population (over 65 age) was 21.63% as compared to 16.04% nationwide.
- Of the total population in Onamia township, 14.04% were under the age of 15, 11.57% aged 15 to 29, 52.75% aged 30 to 64, 20.11% aged 65 to 84, and 1.52% were 85 years of age and older.

Read more about Onamia Township, Minnesota population by age ➔
Gender
There are 39 less females than males in Onamia township:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 46.30% females and 53.70% males in Onamia Township, Minnesota.
- The Onamia Township, Minnesota gender ratio is 116:100 i.e. 116 men to 100 women (1.160).
- For male population, the largest age group is 40-44 years with a population of 34.
- For the female population, the largest age group is 40-44 years with a population of 30.

Read more about Onamia Township, Minnesota population by gender ➔
Race / Ethnicity
Onamia township's population is moderately diverse:
- Racial distribution of Onamia township population: 94.12% are White, 4.17% are American Indian and Alaska Native, 0.76% are some other race and 0.95% are multiracial.
- Onamia township's racial breakdown clearly shows that there is an absolute majority of White population in the township.
- By ethnicity, 18 is Hispanic or Latino (of any race), and 509 (96.58% of the total population) is Non-Hispanic.
- The largest racial group in Onamia township is White with a population of 496 (94.12% of the total population).

Read more about Onamia Township, Minnesota population by race ➔
Year by year
Onamia township's population has already reached its peak and is showing a trend of decline:
- The peak population was 720 in the year 2009
- From 2000 to 2010, Onamia township's population decreased by 27 (4.55%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Onamia township's population increased by 12 (2.12%), 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, Onamia township's population was lowest in year 2014 at 556.

Read more about Onamia Township, Minnesota 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)