Overview
360
Total Population
48.2
Median age
48.89%
Female population %
104.5:100
Gender ratio (M:F)
45-49 years
Largest age group
65.1
Total dependency ratio
White
Largest racial group
13
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Buffalo's population is old compared to the rest of the country:
- The median age in Buffalo is 48.2, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Buffalo's population under 18 was 23.61%, compared to the 22.51% nationwide.
- Buffalo's elderly or the senior population (over 65 age) was 23.61% as compared to 16.04% nationwide.
- Of the total population in Buffalo, 15.83% were under the age of 15, 14.44% aged 15 to 29, 46.11% aged 30 to 64, 22.78% aged 65 to 84, and 0.83% were 85 years of age and older.
Read more about Buffalo, IL population by age ➔
Gender
There are 8 less females than males in Buffalo:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 48.89% females and 51.11% males in Buffalo, IL.
- The Buffalo, IL gender ratio is 104.5:100 i.e. 104.5 men to 100 women (1.045).
- For male population, the largest age group is 45-49 years with a population of 38.
- For the female population, the largest age group is 35-39 years with a population of 21.
Read more about Buffalo, IL population by gender ➔
Race / Ethnicity
Buffalo's population is moderately diverse:
- Racial distribution of Buffalo population: 87.78% are White, 1.39% are Asian and 10.83% are multiracial.
- Buffalo's racial breakdown clearly shows that there is an absolute majority of White population in the village.
- By ethnicity, 13 is Hispanic or Latino (of any race), and 347 (96.39% of the total population) is Non-Hispanic.
- The largest racial group in Buffalo is White with a population of 316 (87.78% of the total population).
Read more about Buffalo, IL population by race ➔
Year by year
Buffalo's population has already reached its peak and is showing a trend of decline:
- The peak population was 501 in the year 2011
- From 2000 to 2010, Buffalo's population increased by 2 (0.40%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Buffalo's population decreased by 53 (10.62%), 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, Buffalo's population was lowest in year 2022 at 438.
Read more about Buffalo, IL 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)