Oswego ZIP Code List — Kendall County, IL

There is one unique ZIP code in Oswego, Illinois and it is 60543. Area code: 331/630.

ZIP codes

41.95

sq mi land

0.48

sq mi water

331/630

area code

Oswego, IL ZIP code map

About Oswego, IL

Oswego, Illinois, is a charming village located in Kendall County. With a rich history and a vibrant community, Oswego is known for its welcoming atmosphere and engaging local events. The village boasts a unique blend of suburban living and natural beauty, making it an attractive destination for families and visitors alike.

Location & geography

Oswego is situated approximately 45 miles southwest of downtown Chicago, providing residents easy access to the metropolitan area. Nearby cities include Aurora, located about 10 miles to the northeast, Naperville, approximately 12 miles to the north, Montgomery, just a few miles to the west, and Yorkville, around 8 miles to the southwest. The village covers a land area of 41.95 square miles and includes a small water area of 0.48 square miles, adding to its scenic landscapes.

Community & economy

The community in Oswego is characterized by its strong sense of belonging, with many local events and festivals that bring residents together. Key industries in the area include retail, healthcare, and education, providing a stable economic environment. Daily life in Oswego is enhanced by parks, recreational programs, and an array of dining options, contributing to its family-friendly reputation.

Transportation

Oswego is conveniently located near several major highways, including U.S. Route 34 and Illinois Route 71, facilitating easy travel in and out of the village. The nearest airport is Chicago's O'Hare International Airport, located about 50 miles to the northeast, while local transit options include METRA train service from nearby Aurora. Public transportation also connects residents to neighboring towns and cities, making commuting accessible.

History

Oswego was founded in the early 19th century, initially developing as a milling community due to the Fox River's proximity. The village has grown significantly over the years, transitioning from a small agrarian community to a suburban hub with various industries. Notable events, such as the establishment of the historic downtown area, highlight Oswego's commitment to preserving its heritage while embracing growth.

Did you know?

One little-known fact about Oswego is that it was once considered a prime location for a significant railroad junction. Additionally, the village hosts the annual Oswego East High School's Art and Music Festival, showcasing local talent and attracting visitors from surrounding areas.

ZIP codes for Oswego, IL (1)

ZIP code	City	County	Map
60543	Oswego	Kendall	View map

Demographics & statistics

40,714

Population

39.8

Median age

$108,924

Median household income

$44,503

Per capita income

$303,500

Median home value

$1,494

Median monthly rent

86.7%

Home ownership

2.8%

Poverty rate

3.0%

Unemployment

12,563

Housing units

41.8%

Bachelor's or higher

Age distribution

Male Female

1,099

Under 5

1,109

1,456

5–9

1,469

1,577

10–14

1,592

1,676

15–19

1,692

1,019

20–24

1,028

2,139

25–34

2,158

3,053

35–44

3,080

3,151

45–54

3,179

1,441

55–59

1,454

1,002

60–64

1,011

1,493

65–74

1,507

861

75–84

869

298

85+

301

← Male

Female →

Age summary

Group	Count	%
Under 18	10,665	26.2%
18 and over	30,049	73.8%
65 and over	5,329	13.1%
Median age	39.8 years

Race & ethnicity

White 65.8%

Two or more races 10.9%

Hispanic or Latino 10.3%

Black or African American 7.8%

Other race 2.6%

Asian 2.3%

American Indian / Alaska Native 0.2%

Group	Count	%
White	29,889	65.8%
Two or more races	4,948	10.9%
Hispanic or Latino	4,690	10.3%
Black or African American	3,558	7.8%
Other race	1,170	2.6%
Asian	1,062	2.3%
American Indian / Alaska Native	87	0.2%

Household income

Under $10k 2.9%

$10k–$15k 0.7%

$15k–$25k 1.8%

$25k–$35k 3.7%

$35k–$50k 7.0%

$50k–$75k 14.1%

$75k–$100k 14.3%

$100k–$150k 26.4%

$150k–$200k 13.9%

$200k+ 15.2%

Range	% of households
Under $10k	2.9%
$10k–$15k	0.7%
$15k–$25k	1.8%
$25k–$35k	3.7%
$35k–$50k	7.0%
$50k–$75k	14.1%
$75k–$100k	14.3%
$100k–$150k	26.4%
$150k–$200k	13.9%
$200k+	15.2%
Median income	$108,924

Housing

Home values

Under $50k 1.5%

$50k–$100k 1.2%

$100k–$150k 3.2%

$150k–$200k 11.6%

$200k–$300k 31.3%

$300k–$500k 46.6%

$500k–$1M 4.3%

$1M+ 0.3%

Housing overview

Metric	Value
Median home value	$303,500
Median rent / month	$1,494
Owner occupied	86.7%
Renter occupied	13.3%
Vacant	0.6%
Single-family detached	71.3%
Large apartment buildings	1.7%
Mobile homes	0.0%
Median rooms	7.0
Avg household size (owned)	2.93

Year built

Era	%
2020 or later	0.7%
2010–2019	7.2%
2000–2009	37.3%
1990–1999	28.4%
1980–1989	6.4%
1970–1979	8.6%
1960–1969	4.1%
1950–1959	2.6%
1940–1949	0.7%
1939 or earlier	3.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	5.5%
2 bedrooms	20.3%
3 bedrooms	32.9%
4 bedrooms	34.5%
5+ bedrooms	6.6%

Vehicles per household

Vehicles	% of households
No vehicle	3.3%
1 vehicle	25.7%
2 vehicles	39.6%
3 or more	31.4%

Heating fuel

Fuel type	%
Utility gas	89.8%
Electricity	7.0%
Propane / LP gas	2.9%

Households & families

Household type	Count	%
Married-couple family	9,001	62.5%
Cohabiting couple	685	4.8%
Male householder, no spouse	1,744	12.1%
Female householder, no spouse	2,968	20.6%
Households with children under 18	5,619	39.0%
Households with seniors (65+)	3,832	26.6%
Average household size	2.82

Marital status

Status	Male	Female
Never married	33.2%	25.5%
Married	57.4%	56.4%
Separated	1.8%	2.1%
Widowed	0.9%	6.2%
Divorced	6.7%	9.8%

Education

Less than 9th grade 3.2%

Some HS, no diploma 2.6%

HS graduate 21.1%

Some college, no degree 19.4%

Associate's degree 11.9%

Bachelor's degree 23.8%

Graduate / professional 17.9%

Metric	%
HS diploma or higher	94.2%
Bachelor's or higher	41.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	584	5.3%
Kindergarten	447	4.0%
Elementary school	4,970	44.7%
High school	3,055	27.5%
College / grad school	2,052	18.5%

Employment

Industry of employment

Education & healthcare 25.0%

Retail trade 13.6%

Professional & management 9.4%

Manufacturing 8.5%

Construction 8.3%

Finance & real estate 8.1%

Arts, food & hospitality 7.3%

Transportation & utilities 5.2%

Wholesale trade 3.9%

Other services 3.9%

Public administration 3.9%

Information 2.3%

Agriculture & mining 0.6%

Occupation

Category	%
Management, business & arts	46.4%
Service	11.5%
Sales & office	20.1%
Natural resources & construction	8.9%
Production & transportation	13.1%

Employment type

Type	%
Private sector	80.7%
Government	15.4%
Self-employed	3.2%
Unpaid family workers	0.7%

Commute

Method	%
Drive alone	76.0%
Carpool	8.7%
Public transit	0.8%
Walk	0.4%
Other means	0.8%
Avg commute (minutes)	31.3

Poverty

All people 2.8%

Under 18 years 0.6%

18 and over 3.6%

Married-couple families 0.4%

Female-led households 3.4%

Income support

Source	% of households
Social Security	27.9%
Retirement income	27.1%
Supplemental Security	2.0%
Cash public assistance	2.2%
Food stamps / SNAP	8.9%

Health indicators

Condition	%
High blood pressure	25.1%
High cholesterol	28.7%
Heart disease	3.9%
Stroke	1.8%
Asthma	9.0%
Arthritis	19.3%
Kidney disease	1.9%
Pulmonary disease	4.2%
Cancer	5.1%

Behavior / access	%
Binge drinking	17.6%
No physical activity	18.6%
Less than 7 hrs sleep	31.8%
Fair or poor health	9.5%
Poor mental health	11.9%
Poor physical health	7.0%
No health insurance	9.8%
Visited doctor (checkup)	74.1%
Visited dentist	71.6%
Cholesterol screening	90.5%
Teeth loss	9.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,521	5.1%

Disability	%
Any disability	6.8%
Under 18	2.7%
18–64 years	6.0%
65 and over	18.6%

Health insurance coverage

Type	%
Private insurance	81.2%
Public insurance	25.0%
Uninsured under 19	2.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	38,506	94.6%
Spanish	2,517	6.5%
Other Indo-European	1,474	3.8%
Asian & Pacific Islander	683	1.8%
Other languages	307	0.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	35,334	86.8%
Born in same state	34,774	85.4%
Born in different state	28,661	70.4%
Foreign born	560	1.4%
Naturalized citizen	5,380	13.2%
Not a US citizen	2,700	50.2%

Ancestry

Ancestry	Count	%
Italian	5,787	14.2%
French	3,292	8.1%
Arab	949	2.3%
Norwegian	717	1.8%
Polish	604	1.5%

Ancestry	Count	%
English	558	1.4%
Dutch	252	0.6%
Irish	178	0.4%
German	96	0.2%

Technology access

Metric	% of households
Computer access	35.4%
Internet access	98.2%

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

Frequently asked questions

What is the ZIP code for Oswego, IL?

Oswego, IL has one ZIP code: 60543.

What is the main ZIP code for Oswego, IL?

The primary ZIP code for Oswego, IL is 60543. The city uses area code 331 or 630 for phone service.

What county is Oswego, IL in?

Oswego is located in Kendall County, Illinois.

How many ZIP codes are in Oswego, IL?

Oswego, IL has 1 ZIP code.

What is the ZIP code for downtown Oswego and the area around Oswego Community Unit School District 308?

The downtown Oswego area and Oswego Community Unit School District 308 are located in ZIP code 60543, which covers the entire city of Oswego, Illinois.

What ZIP code do I need for mailing addresses in the Oswego Prairie residential neighborhoods along the Fox River?

All residential areas in Oswego, including the Prairie neighborhoods near the Fox River, use the ZIP code 60543.