Sandwich ZIP Codes — Dekalb County, IL

There is one unique ZIP code in Sandwich, Illinois and it is 60548. Area code: 779/815.

ZIP codes

41.38

sq mi land

0.38

sq mi water

779/815

area code

Sandwich, IL ZIP code map

About Sandwich, IL

Sandwich, Illinois, is a charming city located in Dekalb County. Known for its rich history and friendly community, it offers a unique blend of small-town charm and modern amenities. The city serves as a great place for both residents and visitors seeking a peaceful yet vibrant lifestyle.

Location & geography

Sandwich is situated in the northern part of Illinois and has a total land area of 41.38 square miles, complemented by a water area of 0.38 square miles. It is surrounded by several notable cities, including Plano, which lies approximately 7 miles to the northeast, and Yorkville, about 12 miles to the east. The city’s terrain is predominantly flat, featuring numerous parks and green spaces that enhance its scenic beauty.

Community & economy

The character of Sandwich is defined by its warm, welcoming residents and a strong sense of community. The city has a diversified economy, with local industries including agriculture, retail, and manufacturing, contributing to daily life. Residents enjoy access to local shops, restaurants, and various community events that foster a close-knit atmosphere.

Transportation

Sandwich is conveniently connected by major highways such as Illinois Route 34 and Illinois Route 23, facilitating easy travel to surrounding areas. The nearest airport is in DeKalb, offering general aviation services, while Chicago’s O'Hare International Airport is about an hour away for more extensive travel options. Public transportation options are limited, but residents often rely on personal vehicles for commuting.

History

Founded in the mid-1800s, Sandwich played a significant role in the development of the agricultural sector in Illinois. The city was once a hub for grain and livestock, which contributed substantially to its early economic growth. Over the years, Sandwich has hosted several notable events, enhancing its reputation as a community-focused city.

Did you know?

A surprising fact about Sandwich is that it was named after Sandwich, England, reflecting the influence of early settlers. Additionally, the city is home to the annual Sandwich Fair, one of Illinois' oldest fairs, showcasing local agriculture and crafts.

ZIP codes for Sandwich, IL (1)

ZIP code	City	County	Map
60548	Sandwich	Dekalb	View map

Demographics & statistics

12,040

Population

39.0

Median age

$82,607

Median household income

$35,571

Per capita income

$216,000

Median home value

$1,123

Median monthly rent

81.1%

Home ownership

9.0%

Poverty rate

5.2%

Unemployment

3,778

Housing units

18.8%

Bachelor's or higher

Age distribution

Male Female

372

Under 5

320

404

5–9

346

407

10–14

349

412

15–19

354

674

20–24

578

631

25–34

541

898

35–44

771

687

45–54

590

302

55–59

260

398

60–64

342

783

65–74

673

414

75–84

355

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,666	22.1%
18 and over	9,374	77.9%
65 and over	2,404	20.0%
Median age	39.0 years

Race & ethnicity

White 89.2%

Hispanic or Latino 4%

Two or more races 2.7%

Other race 2.4%

Black or African American 0.8%

Asian 0.6%

American Indian / Alaska Native 0.3%

Group	Count	%
White	11,189	89.2%
Hispanic or Latino	507	4%
Two or more races	334	2.7%
Other race	302	2.4%
Black or African American	105	0.8%
Asian	71	0.6%
American Indian / Alaska Native	39	0.3%

Household income

Under $10k 2.8%

$10k–$15k 1.4%

$15k–$25k 6.9%

$25k–$35k 6.5%

$35k–$50k 11.1%

$50k–$75k 15.1%

$75k–$100k 16.7%

$100k–$150k 22.4%

$150k–$200k 11.0%

$200k+ 6.0%

Range	% of households
Under $10k	2.8%
$10k–$15k	1.4%
$15k–$25k	6.9%
$25k–$35k	6.5%
$35k–$50k	11.1%
$50k–$75k	15.1%
$75k–$100k	16.7%
$100k–$150k	22.4%
$150k–$200k	11.0%
$200k+	6.0%
Median income	$82,607

Housing

Home values

Under $50k 8.1%

$50k–$100k 7.3%

$100k–$150k 5.5%

$150k–$200k 22.0%

$200k–$300k 37.9%

$300k–$500k 17.5%

$500k–$1M 1.1%

$1M+ 0.5%

Housing overview

Metric	Value
Median home value	$216,000
Median rent / month	$1,123
Owner occupied	81.1%
Renter occupied	18.9%
Vacant	5.4%
Single-family detached	77.5%
Large apartment buildings	1.2%
Mobile homes	10.2%
Median rooms	6.0
Avg household size (owned)	2.68

Year built

Era	%
2020 or later	0.6%
2010–2019	0.5%
2000–2009	17.5%
1990–1999	21.4%
1980–1989	12.6%
1970–1979	20.3%
1960–1969	4.2%
1950–1959	5.7%
1940–1949	2.3%
1939 or earlier	15.0%

Bedrooms

Size	% of units
No bedroom (studio)	1.3%
1 bedroom	2.4%
2 bedrooms	23.4%
3 bedrooms	47.6%
4 bedrooms	19.9%
5+ bedrooms	5.4%

Vehicles per household

Vehicles	% of households
No vehicle	3.8%
1 vehicle	21.6%
2 vehicles	42.7%
3 or more	31.8%

Heating fuel

Fuel type	%
Utility gas	86.1%
Electricity	10.9%
Propane / LP gas	2.6%
Fuel oil	0.1%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	2,283	52.4%
Cohabiting couple	492	11.3%
Male householder, no spouse	647	14.9%
Female householder, no spouse	932	21.4%
Households with children under 18	1,274	29.3%
Households with seniors (65+)	1,585	36.4%
Average household size	2.73

Marital status

Status	Male	Female
Never married	37.7%	26.2%
Married	46.2%	49.0%
Separated	0.4%	0.8%
Widowed	2.2%	9.6%
Divorced	13.5%	14.4%

Education

Less than 9th grade 2.6%

Some HS, no diploma 5.0%

HS graduate 31.7%

Some college, no degree 27.0%

Associate's degree 15.0%

Bachelor's degree 12.2%

Graduate / professional 6.6%

Metric	%
HS diploma or higher	92.4%
Bachelor's or higher	18.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	202	7.1%
Kindergarten	41	1.4%
Elementary school	1,289	45.3%
High school	753	26.4%
College / grad school	563	19.8%

Employment

Industry of employment

Education & healthcare 24.2%

Construction 14.3%

Retail trade 12.8%

Arts, food & hospitality 9.5%

Finance & real estate 8.2%

Manufacturing 7.4%

Transportation & utilities 6.9%

Professional & management 6.0%

Other services 4.3%

Public administration 3.4%

Wholesale trade 1.9%

Information 0.6%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	28.4%
Service	17.8%
Sales & office	18.3%
Natural resources & construction	17.5%
Production & transportation	18.0%

Employment type

Type	%
Private sector	80.8%
Government	12.0%
Self-employed	6.6%
Unpaid family workers	0.6%

Commute

Method	%
Drive alone	82.0%
Carpool	7.8%
Public transit	0.7%
Walk	1.7%
Other means	0.4%
Avg commute (minutes)	34.5

Poverty

All people 9.0%

Under 18 years 13.8%

18 and over 7.6%

Married-couple families 3.2%

Female-led households 25.3%

Income support

Source	% of households
Social Security	37.4%
Retirement income	29.2%
Supplemental Security	3.4%
Cash public assistance	2.8%
Food stamps / SNAP	7.7%

Health indicators

Condition	%
High blood pressure	31.5%
High cholesterol	32.3%
Heart disease	6.2%
Stroke	2.9%
Asthma	9.6%
Arthritis	25.8%
Kidney disease	2.7%
Pulmonary disease	6.8%
Cancer	6.7%

Behavior / access	%
Binge drinking	16.1%
No physical activity	23.3%
Less than 7 hrs sleep	31.6%
Fair or poor health	13.2%
Poor mental health	12.9%
Poor physical health	9.5%
No health insurance	11.2%
Visited doctor (checkup)	75.9%
Visited dentist	64.7%
Cholesterol screening	89.5%
Teeth loss	13.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	762	8.1%

Disability	%
Any disability	13.1%
Under 18	6.1%
18–64 years	9.5%
65 and over	32.2%

Health insurance coverage

Type	%
Private insurance	78.5%
Public insurance	33.0%
Uninsured under 19	1.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	11,348	94.3%
Spanish	268	2.4%
Other Indo-European	224	2.0%
Asian & Pacific Islander	33	0.3%
Other languages	11	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	11,573	96.1%
Born in same state	11,552	95.9%
Born in different state	10,246	85.1%
Foreign born	21	0.2%
Naturalized citizen	467	3.9%
Not a US citizen	212	45.4%

Ancestry

Ancestry	Count	%
Italian	1,859	15.4%
French	1,130	9.4%
Polish	754	6.3%
Arab	492	4.1%
English	196	1.6%

Ancestry	Count	%
Dutch	109	0.9%
Norwegian	78	0.6%
German	58	0.5%
Irish	56	0.5%

Technology access

Metric	% of households
Computer access	36.2%
Internet access	94.7%

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

Frequently asked questions

What ZIP codes does Sandwich, IL have?

Sandwich, IL has one ZIP code: 60548. Each ZIP code serves a distinct delivery area within the city and surrounding region.