Buffalo, Illinois Population 2022

435
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Buffalo is a city located in Sangamon County Illinois. With a 2020 population of 435, it is the 951st largest city in Illinois and the 19979th largest city in the United States. Buffalo is currently declining at a rate of -1.36% annually and its population has decreased by -2.68% since the most recent census, which recorded a population of 447 in 2020. Spanning over 0 miles, Buffalo has a population density of 1,224 people per square mile.

The average household income in Buffalo is $56,404 with a poverty rate of 11.01%. The median rental costs in recent years comes to $905 per month, and the median house value is $89,700. The median age in Buffalo is 40.4 years, 43 years for males, and 39 years for females.

Buffalo Demographics

According to the most recent ACS, the racial composition of Buffalowas:

  • White: 92.46%
  • Two or more races: 5.80%
  • Asian: 1.74%
  • Black or African American: 0.00%
  • Native American: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
  • Other race: 0.00%
The current population of Buffalo, Illinois is 435 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 447.

Buffalo, Illinois Population 2022

Population by Race

Race Population Percentage
White31992.46%
Asian61.74%
Two or More Races205.80%
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Buffalo Population by Race

Buffalo Population Pyramid 2022

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Buffalo Median Age

47.3


Total

47.2


Male

48


Female

Buffalo Adults

There are 272 adults, (72 of whom are seniors) in Buffalo.

Buffalo Age Dependency

Age Dependency Ratio

36

Old Age Dependency Ratio

36.5

Child Dependency Ratio

Buffalo Sex Ratio

Female

166

48.12%

Male

179

51.88%

Buffalo Population by Age

Buffalo Renter vs Owner Occupied by Household Type

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Buffalo Household Types

Type Owner Renter
Male100%0%
Married82.6%17.4%
Female71.4%28.6%
All66%34%
Non Family42.9%57.1%

66.0%

Rate of Home Ownership

Buffalo Households and Families

Type Count Average Size Owned
All1532.2566
Married692.9982.6
Male72.71100
Female143.0771.4
Non Family631.2242.9

2.92

Average Family Size

2.25

Average Household Size

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Buffalo Households by Type

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Education Attained Count Percentage
Less Than 9th Grade31.21%
9th to 12th Grade2610.48%
High School Graduate7028.23%
Some College6927.82%
Associates Degree114.44%
Bachelors Degree5220.97%
Graduate Degree176.85%
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Buffalo Educational Attainment by Sex (over 25)

Buffalo Educational Attainment by Race

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Race Total High School Bachelors
Asian666
2+ Races774
White23520659

The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 100.00%.

Buffalo Educational Attainment by Race

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Name Average Male Female
Overall$37,153$68,750$24,167
Less Than 9th Grade$46,667$$
High School Graduate$26,250$$26,667
Some College$36,250$44,375$
Bachelors Degree$73,466$74,148$
Graduate Degree$$$

$37,153

Average Earnings

$68,750

Average Male

$24,167

Average Female

Buffalo Earnings by Educational Attainment

Buffalo Language by Age

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Buffalo Language

97.68% of Buffalo residents speak only English, while 2.32% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 1.74% of the population.

Buffalo Language

Buffalo Poverty by Race

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11.01%

Overall Poverty Rate

7.26%

Male Poverty Rate

15.06%

Female Poverty Rate

Poverty in Buffalo

The race most likely to be in poverty in Buffalo is White, with 11.91% below the poverty level.

The race least likely to be in poverty in Buffalo is Other, with NaN% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 6.62%. Among those working part-time, it was 11.86%, and for those that did not work, the poverty rate was 19.35%.

Buffalo Poverty

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Name Poverty
Less Than 9th Grade31.03%
High School21.43%
Some College8.75%
Bachelors or Greater0.00%

Buffalo Poverty Rate by Education

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Rate Poverty
Male Employed5.05%
Male Unemployed100.00%
Female Employed8.43%
Female Unemployed50.00%

Buffalo Poverty Rate by Employment Status and Sex

Buffalo Income by Household Type

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Name Median Mean
Households$52,750$59,759
Families$68,750$74,384
Married Families$80,536-
Non Families$22,917$34,498
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Income by Household Type

Buffalo Marital Status

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Marriage Rates

55.0%

Overall Marriage Rate

62.6%

Male Marriage Rate

47.2%

Female Marriage Rate

Buffalo Married by Age and Sex

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Buffalo Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Buffalo Marital Status by Race

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Buffalo Marital Status

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28

Number of Veterans

Male Veterans

Female Veterans

War Veterans
Second Gulf War8
First Gulf War10
Vietnam9
Korea
World War II

Buffalo Veterans by War

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Age Group Veterans
18 to 34
35 to 5410
55 to 643
65 to 749
75+6

Buffalo Veterans by Age

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Name Veterans % of Total
White249.27%
2+ Races457.14%

Buffalo Veterans by Race

Buffalo Veterans by Education

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0.00%

Veteran Poverty Rate

35.71%

Veteran Disability Rate

Buffalo Veterans by Education

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66%

Labor Force Participation

63.2%

Employment Rate

4.2%

Unemployment Rate

Buffalo Employment by Age

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Buffalo Employment by Race

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Buffalo Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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77.68%

Born in Buffalo

91.88%

Native Born

8.12%

Foreign Born

8.12%

Non Citizen

0.00%

Naturalized

Place of Birth

91.88% of Buffalo residents were born in the United States, with 77.68% having been born in Illinois. 8.12% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Buffalo Place of Birth

Note: 2021 and 2022 data is projected
Year Population Growth Annual Growth Rate
20105030.00%
2011497-6-1.19%
2012491-6-1.21%
2013485-6-1.22%
2014479-6-1.24%
2015473-6-1.25%
2016467-6-1.27%
2017461-6-1.28%
2018455-6-1.30%
2019449-6-1.32%
2020447-2-0.45%
2021441-6-1.34%
2022435-6-1.36%

Buffalo Population by Year