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CITY · 2000 CENSUS

Buffalo

Illinois · 491 residents · 0.345 sq mi
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The short version

Buffalo has lower-than-average household income, with a median household income of $36,250. Population has declined 6% since 1990. 12% of adults hold a bachelor's degree or higher, below the national rate of 24%. Median home value is $67,500.

At a glance
Lower income
below the US median
US median: $42,589
Mid-age
median age 36.4
US median: 35.2
Less educated
12% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

491
−6%since 1990
from 521 in 1990
1990 – 2025
1,423 / sq mi
−6%since 1990
from 1,510 / sq mi in 1990
US average: 242
36.4
+15%since 1990
from 31.5 in 1990
US average: 35.2
Population, 19902024
3404004605205801990201020202024Buffalo
2024482
1990201020202024
Section 02

Income & economy

$36,250
−6%inflation adjusted, since 1990
from $29,271 in 1990
US average: $42,589
1990 – 2024
$19,637
+71%since 1990
from $11,452 in 1990
US average: $21,522
10.8%
+1.0 ptssince 1990
from 9.8% in 1990
US average: 12.4%
Section 03

Housing

$67,500
+8%inflation adjusted, since 1990
from $47,300 in 1990
US average: $120,530
1990 – 2024
$263
−37%inflation adjusted, since 1990
from $319 in 1990
US average: $602
74.4%
+8.4 ptssince 1990
from 66.0% in 1990
25.6% rent
1.9
+15%since 1990
from 1.6 in 1990
1990 – 2024
RELATED:See current rent listings in Buffalo on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic97.7%(509)
Black2.3%(12)
Hispanic / Latino0%(0)
Asian0%(0)
Diversity Score5.6%(29)
2000
White, non-Hispanic96.3%(473)
Black0%(0)
Hispanic / Latino1.2%(6)
Asian0.2%(1)
Diversity Score3.6%(18)
4
−36%since 1990
from 6 in 1990
1990 – 2024
Section 05

Education

12.2%
−2.1 ptssince 1990
from 14.3% in 1990
US average: 24.4%
High school or higher
85.9%
+7.1 ptssince 1990
from 78.8% in 1990
US average: 80.3%
5.0%
−0.9 ptssince 1990
from 5.9% in 1990
US average: 8.8%
Section 06

Commute & transportation

17.1 min
−30%since 1990
from 24.5 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in Buffalo, Illinois?

Buffalo, Illinois has about 491 residents according to the 2000 Census.

What is the median household income in Buffalo, Illinois?

The typical household in Buffalo, Illinois earns about $36,250 a year. Half of households make more than that, and half make less.

Is Buffalo, Illinois expensive?

In Buffalo, Illinois, the median home is worth about $67,500, and the typical rent is about $263 a month.

How educated are people in Buffalo, Illinois?

About 12.2% of adults age 25 and over in Buffalo, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Buffalo, Illinois?

About 10.8% of people in Buffalo, Illinois live below the federal poverty line.

Has Buffalo, Illinois grown since 1990?

Yes, Buffalo, Illinois has shrunk since 1990. The population has lost about 30 residents, a change of about -6 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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