Buffalo ZIP Codes — Sangamon County, IL

There is one unique ZIP code in Buffalo, Illinois and it is 62515. Area code: 217.

ZIP codes

57.38

sq mi land

0.01

sq mi water

217

area code

Buffalo, IL ZIP code map

About Buffalo, IL

Buffalo, Illinois is a small village located in the heart of Sangamon County. With its picturesque surroundings and welcoming community, it offers a unique charm that attracts visitors. Residents enjoy a tight-knit atmosphere that embodies the spirit of rural living in Illinois.

Location & geography

Situated in central Illinois, Buffalo lies approximately 18 miles southwest of Springfield, the state capital. The village is bordered by several notable communities including Riverton to the northeast, and Mechanicsburg to the west. Buffalo covers a total land area of 57.38 square miles, with a minimal water area of 0.01 square miles.

Community & economy

The character of Buffalo is defined by its friendly residents and community-focused lifestyle, making it an ideal place for families. The local economy is supported primarily by agriculture and small businesses, essential components of daily life in the village. Community events and gatherings foster a strong sense of belonging among its inhabitants.

Transportation

Buffalo is conveniently accessed via several highways, including Illinois Route 54, which connects the village to nearby larger towns. The nearest major airport is Abraham Lincoln Capital Airport located in Springfield, providing both commercial and general aviation services. Public transit options are limited, making personal vehicles the primary means of transportation.

History

Buffalo was founded in the mid-19th century, becoming an integral part of the agriculture-rich Sangamon County. Key industries in the early days included agriculture and trading, which helped the village flourish over the decades. Notable events in its history include the development of local infrastructure and community services that have supported growth.

Did you know?

One surprising fact about Buffalo is that it maintains a strong tradition of local farming, which plays a crucial role in its economy and culture. Additionally, the village hosts annual events that attract visitors from neighboring areas, celebrating its heritage and community spirit.

ZIP codes for Buffalo, IL (1)

ZIP code	City	County	Map
62515	Buffalo	Sangamon	View map

Demographics & statistics

1,059

Population

54.9

Median age

$92,847

Median household income

$40,306

Per capita income

$149,500

Median home value

$821

Median monthly rent

72.9%

Home ownership

11.8%

Poverty rate

0.2%

Unemployment

341

Housing units

38.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

133

65–74

125

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	186	17.6%
18 and over	873	82.4%
65 and over	355	33.5%
Median age	54.9 years

Race & ethnicity

White 95.3%

Two or more races 3.1%

Asian 0.8%

Hispanic or Latino 0.7%

Group	Count	%
White	1,017	95.3%
Two or more races	33	3.1%
Asian	9	0.8%
Hispanic or Latino	8	0.7%

Household income

Under $10k 1.8%

$10k–$15k 4.4%

$15k–$25k 12.6%

$25k–$35k 2.1%

$35k–$50k 7.4%

$50k–$75k 10.8%

$75k–$100k 17.0%

$100k–$150k 27.6%

$150k–$200k 9.9%

$200k+ 6.4%

Range	% of households
Under $10k	1.8%
$10k–$15k	4.4%
$15k–$25k	12.6%
$25k–$35k	2.1%
$35k–$50k	7.4%
$50k–$75k	10.8%
$75k–$100k	17.0%
$100k–$150k	27.6%
$150k–$200k	9.9%
$200k+	6.4%
Median income	$92,847

Housing

Home values

Under $50k 3.2%

$50k–$100k 9.5%

$100k–$150k 37.9%

$150k–$200k 10.7%

$200k–$300k 24.6%

$300k–$500k 14.2%

Housing overview

Metric	Value
Median home value	$149,500
Median rent / month	$821
Owner occupied	72.9%
Renter occupied	27.1%
Vacant	5.2%
Single-family detached	84.1%
Large apartment buildings	0.0%
Mobile homes	5.2%
Median rooms	6.4
Avg household size (owned)	2.48

Year built

Era	%
2020 or later	0.0%
2010–2019	5.0%
2000–2009	3.3%
1990–1999	10.7%
1980–1989	22.2%
1970–1979	11.5%
1960–1969	4.8%
1950–1959	12.2%
1940–1949	9.6%
1939 or earlier	20.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	10.2%
2 bedrooms	29.6%
3 bedrooms	35.1%
4 bedrooms	19.4%
5+ bedrooms	5.7%

Vehicles per household

Vehicles	% of households
No vehicle	5.1%
1 vehicle	16.1%
2 vehicles	45.1%
3 or more	33.8%

Heating fuel

Fuel type	%
Utility gas	33.6%
Electricity	12.6%
Propane / LP gas	53.8%

Households & families

Household type	Count	%
Married-couple family	316	72.6%
Cohabiting couple	9	2.1%
Male householder, no spouse	41	9.4%
Female householder, no spouse	69	15.9%
Households with children under 18	102	23.4%
Households with seniors (65+)	210	48.3%
Average household size	2.43

Marital status

Status	Male	Female
Never married	14.2%	6.0%
Married	76.9%	70.3%
Separated	1.3%	0.0%
Widowed	0.2%	14.7%
Divorced	7.4%	9.0%

Education

Less than 9th grade 0.3%

Some HS, no diploma 6.1%

HS graduate 23.1%

Some college, no degree 23.7%

Associate's degree 8.2%

Bachelor's degree 27.7%

Graduate / professional 10.8%

Metric	%
HS diploma or higher	93.5%
Bachelor's or higher	38.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	12	6.3%
Kindergarten	0	0.0%
Elementary school	94	49.7%
High school	66	34.9%
College / grad school	17	9.0%

Employment

Industry of employment

Agriculture & mining 20.5%

Education & healthcare 12.9%

Public administration 11.2%

Transportation & utilities 8.6%

Wholesale trade 7.8%

Arts, food & hospitality 7.2%

Retail trade 6.8%

Professional & management 5.9%

Other services 5.7%

Manufacturing 5.5%

Construction 4.9%

Finance & real estate 3.2%

Occupation

Category	%
Management, business & arts	50.4%
Service	9.7%
Sales & office	25.3%
Natural resources & construction	3.6%
Production & transportation	11.0%

Employment type

Type	%
Private sector	62.7%
Government	19.2%
Self-employed	18.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	68.6%
Carpool	6.3%
Public transit	0.0%
Walk	0.6%
Other means	1.5%
Avg commute (minutes)	23.5

Poverty

All people 11.8%

Under 18 years 3.8%

18 and over 13.5%

Married-couple families 13.9%

Female-led households 14.3%

Income support

Source	% of households
Social Security	36.6%
Retirement income	47.6%
Supplemental Security	2.1%
Cash public assistance	1.1%
Food stamps / SNAP	7.1%

Health indicators

Condition	%
High blood pressure	34.7%
High cholesterol	34.5%
Heart disease	6.4%
Stroke	3.0%
Asthma	9.4%
Arthritis	27.1%
Kidney disease	2.7%
Pulmonary disease	7.2%
Cancer	7.0%

Behavior / access	%
Binge drinking	15.5%
No physical activity	24.1%
Less than 7 hrs sleep	28.8%
Fair or poor health	13.7%
Poor mental health	12.6%
Poor physical health	9.9%
No health insurance	9.9%
Visited doctor (checkup)	76.2%
Visited dentist	65.2%
Cholesterol screening	90.3%
Teeth loss	13.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	48	5.5%

Disability	%
Any disability	15.7%
Under 18	5.4%
18–64 years	8.7%
65 and over	31.3%

Health insurance coverage

Type	%
Private insurance	78.4%
Public insurance	42.4%
Uninsured under 19	16.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,037	97.9%
Spanish	8	0.8%
Other Indo-European	7	0.7%
Asian & Pacific Islander	1	0.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,010	95.4%
Born in same state	996	94.1%
Born in different state	834	78.8%
Foreign born	14	1.3%
Naturalized citizen	49	4.6%
Not a US citizen	17	34.7%

Ancestry

Ancestry	Count	%
French	268	25.3%
Italian	126	11.9%
Arab	91	8.6%

Ancestry	Count	%
Norwegian	77	7.3%
Polish	26	2.5%
English	11	1%

Technology access

Metric	% of households
Computer access	41.1%
Internet access	86.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Buffalo, IL have?

Buffalo, IL has one ZIP code: 62515. Each ZIP code serves a distinct delivery area within the city and surrounding region.