Overview
          534
                  Total Population
                47.5
                  Median age
                45.69%
                  Female population %
                118.9:100
                  Gender ratio (M:F)
                35-39 years
                  Largest age group
                60.4
                  Total dependency ratio
                White
                  Largest racial group
                44
                  Hispanic population
                Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Belt's population is old compared to the rest of the country:
- The median age in Belt is 47.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Belt's population under 18 was 15.73%, compared to the 22.51% nationwide.
- Belt's elderly or the senior population (over 65 age) was 26.97% as compared to 16.04% nationwide.
- Of the total population in Belt, 10.67% were under the age of 15, 18.73% aged 15 to 29, 43.63% aged 30 to 64, 23.41% aged 65 to 84, and 3.56% were 85 years of age and older.
 
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Gender
There are 46 less females than males in Belt:
- 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 Belt, MT.
- The Belt, MT gender ratio is 118.9:100 i.e. 118.9 men to 100 women (1.189).
- For male population, the largest age group is 20-24 years with a population of 41.
- For the female population, the largest age group is 35-39 years with a population of 59.
 
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Race / Ethnicity
Belt's population is moderately diverse:
- Racial distribution of Belt population: 90.45% are White, 0.56% are Asian, 7.49% are some other race and 1.50% are multiracial.
- Belt's racial breakdown clearly shows that there is an absolute majority of White population in the town.
- By ethnicity, 44 is Hispanic or Latino (of any race), and 49 (91.76% of the total population) is Non-Hispanic.
- The largest racial group in Belt is White with a population of 483 (90.45% of the total population).
 
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Year by year
Belt's population has already reached its peak and is showing a trend of decline:
- The peak population was 655 in the year 2000
- From 2000 to 2010, Belt's population decreased by 75 (11.45%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Belt's population decreased by 69 (11.90%), 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, Belt's population was lowest in year 2020 at 511.
 
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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)
