Mendota ZIP Codes — La Salle County, IL

There is one unique ZIP code in Mendota, Illinois and it is 61342. Area code: 815.

ZIP codes

108.16

sq mi land

0.14

sq mi water

815

area code

Mendota, IL ZIP code map

About Mendota, IL

Mendota, Illinois, is a charming city located in La Salle County, filled with small-town charm and community spirit. Known for its rich history and friendly residents, it provides a welcoming atmosphere for visitors and locals alike. The city serves as a hub for various activities and industries, making it an essential part of the region.

Location & geography

Situated in north-central Illinois, Mendota is approximately 20 miles from the city of Peru to the east and about 30 miles from the larger city of Ottawa to the southwest. The city encompasses a total land area of 108.16 square miles, with a small water area of 0.14 square miles, contributing to its scenic rural landscape. The region’s terrain is characterized by rolling hills and surrounding farmland, typical of the Midwestern United States.

Community & economy

The character of Mendota is embodied by its close-knit community, where residents engage in various local events and support one another. Key industries in the area include agriculture and manufacturing, which play significant roles in the local economy. Daily life in Mendota often revolves around community events, local schools, and family-based activities, providing a nurturing environment for all ages.

Transportation

Mendota is well-connected by transportation, with Interstate 39 running nearby, offering access to larger metropolitan areas like Chicago and Rockford. The nearest commercial airports are located in Peoria and Chicago, facilitating air travel for residents and visitors. Public transit options are limited, but local roads provide reasonable access to neighboring towns and cities.

History

Mendota was founded in the mid-19th century and quickly established itself as a vital railway hub, which contributed to its growth and development. Over the years, Mendota has seen fluctuations in its key industries, particularly those related to agriculture and manufacturing. Notable events in the city's history include community gatherings and festivals that celebrate its heritage and the spirit of its residents.

Did you know?

One surprising fact about Mendota is that it is home to the Mendota Hills Wind Farm, which contributes to renewable energy initiatives in the area. Additionally, the city hosts the annual Mendota Sweet Corn Festival, celebrating its agricultural roots.

ZIP codes for Mendota, IL (1)

ZIP code	City	County	Map
61342	Mendota	La Salle	View map

Demographics & statistics

8,389

Population

41.3

Median age

$66,967

Median household income

$33,894

Per capita income

$131,300

Median home value

$791

Median monthly rent

74.6%

Home ownership

8.2%

Poverty rate

3.4%

Unemployment

2,895

Housing units

20.3%

Bachelor's or higher

Age distribution

Male Female

207

Under 5

207

303

5–9

305

255

10–14

257

235

15–19

236

353

20–24

354

441

25–34

443

442

35–44

443

564

45–54

567

322

55–59

323

214

60–64

214

458

65–74

460

244

75–84

245

148

85+

149

← Male

Female →

Age summary

Group	Count	%
Under 18	1,848	22.0%
18 and over	6,541	78.0%
65 and over	1,704	20.3%
Median age	41.3 years

Race & ethnicity

White 73.1%

Hispanic or Latino 11.7%

Other race 10.4%

Two or more races 2.7%

Asian 1.3%

Black or African American 0.6%

American Indian / Alaska Native 0.2%

Group	Count	%
White	6,949	73.1%
Hispanic or Latino	1,111	11.7%
Other race	984	10.4%
Two or more races	259	2.7%
Asian	121	1.3%
Black or African American	60	0.6%
American Indian / Alaska Native	16	0.2%

Household income

Under $10k 4.6%

$10k–$15k 3.0%

$15k–$25k 9.6%

$25k–$35k 9.5%

$35k–$50k 16.3%

$50k–$75k 14.3%

$75k–$100k 14.0%

$100k–$150k 14.9%

$150k–$200k 8.3%

$200k+ 5.5%

Range	% of households
Under $10k	4.6%
$10k–$15k	3.0%
$15k–$25k	9.6%
$25k–$35k	9.5%
$35k–$50k	16.3%
$50k–$75k	14.3%
$75k–$100k	14.0%
$100k–$150k	14.9%
$150k–$200k	8.3%
$200k+	5.5%
Median income	$66,967

Housing

Home values

Under $50k 5.8%

$50k–$100k 15.6%

$100k–$150k 43.3%

$150k–$200k 17.2%

$200k–$300k 9.4%

$300k–$500k 6.7%

$500k–$1M 2.1%

Housing overview

Metric	Value
Median home value	$131,300
Median rent / month	$791
Owner occupied	74.6%
Renter occupied	25.4%
Vacant	9.1%
Single-family detached	78.7%
Large apartment buildings	3.8%
Mobile homes	4.6%
Median rooms	6.1
Avg household size (owned)	2.56

Year built

Era	%
2020 or later	0.9%
2010–2019	2.9%
2000–2009	6.4%
1990–1999	9.2%
1980–1989	5.7%
1970–1979	13.1%
1960–1969	10.2%
1950–1959	17.4%
1940–1949	6.3%
1939 or earlier	28.0%

Bedrooms

Size	% of units
No bedroom (studio)	3.5%
1 bedroom	6.6%
2 bedrooms	21.1%
3 bedrooms	51.8%
4 bedrooms	13.5%
5+ bedrooms	3.5%

Vehicles per household

Vehicles	% of households
No vehicle	8.5%
1 vehicle	31.4%
2 vehicles	37.8%
3 or more	22.3%

Heating fuel

Fuel type	%
Utility gas	71.4%
Electricity	17.8%
Propane / LP gas	9.1%
Fuel oil	0.6%
Wood	0.8%

Households & families

Household type	Count	%
Married-couple family	1,722	50.3%
Cohabiting couple	247	7.2%
Male householder, no spouse	630	18.4%
Female householder, no spouse	825	24.1%
Households with children under 18	1,012	29.6%
Households with seniors (65+)	1,132	33.1%
Average household size	2.40

Marital status

Status	Male	Female
Never married	31.4%	28.3%
Married	53.3%	51.4%
Separated	3.4%	2.1%
Widowed	4.0%	7.8%
Divorced	7.9%	10.4%

Education

Less than 9th grade 4.7%

Some HS, no diploma 6.5%

HS graduate 31.4%

Some college, no degree 23.2%

Associate's degree 13.9%

Bachelor's degree 12.4%

Graduate / professional 8.0%

Metric	%
HS diploma or higher	88.8%
Bachelor's or higher	20.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	105	4.9%
Kindergarten	165	7.8%
Elementary school	915	43.0%
High school	391	18.4%
College / grad school	552	25.9%

Employment

Industry of employment

Education & healthcare 23.6%

Manufacturing 20.7%

Retail trade 13.9%

Transportation & utilities 6.9%

Other services 5.9%

Construction 5.1%

Agriculture & mining 4.6%

Professional & management 4.5%

Arts, food & hospitality 4.3%

Finance & real estate 3.9%

Information 2.7%

Public administration 2.1%

Wholesale trade 1.8%

Occupation

Category	%
Management, business & arts	36.5%
Service	13.2%
Sales & office	17.5%
Natural resources & construction	9.3%
Production & transportation	23.5%

Employment type

Type	%
Private sector	81.7%
Government	11.0%
Self-employed	7.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	86.1%
Carpool	8.1%
Public transit	0.0%
Walk	1.3%
Other means	2.5%
Avg commute (minutes)	21.9

Poverty

All people 8.2%

Under 18 years 12.9%

18 and over 6.9%

Married-couple families 0.5%

Female-led households 34.1%

Income support

Source	% of households
Social Security	30.5%
Retirement income	21.1%
Supplemental Security	3.2%
Cash public assistance	3.0%
Food stamps / SNAP	14.3%

Health indicators

Condition	%
High blood pressure	34.2%
High cholesterol	34.0%
Heart disease	7.5%
Stroke	3.5%
Asthma	9.6%
Arthritis	27.8%
Kidney disease	3.3%
Pulmonary disease	8.1%
Cancer	7.4%

Behavior / access	%
Binge drinking	14.7%
No physical activity	27.7%
Less than 7 hrs sleep	32.8%
Fair or poor health	16.6%
Poor mental health	12.8%
Poor physical health	11.0%
No health insurance	14.8%
Visited doctor (checkup)	76.1%
Visited dentist	61.8%
Cholesterol screening	89.1%
Teeth loss	16.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	554	8.5%

Disability	%
Any disability	12.7%
Under 18	4.0%
18–64 years	8.1%
65 and over	37.5%

Health insurance coverage

Type	%
Private insurance	71.1%
Public insurance	39.1%
Uninsured under 19	3.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,975	95.1%
Spanish	533	6.7%
Other Indo-European	473	5.9%
Asian & Pacific Islander	2	0.0%
Other languages	58	0.7%

Place of birth & citizenship

Origin	Count	%
Native born (US)	7,805	93.0%
Born in same state	7,792	92.9%
Born in different state	6,879	82.0%
Foreign born	13	0.2%
Naturalized citizen	584	7.0%
Not a US citizen	208	35.6%

Ancestry

Ancestry	Count	%
Italian	1,253	14.9%
French	540	6.4%
Arab	410	4.9%

Ancestry	Count	%
Polish	208	2.5%
English	96	1.1%
Irish	13	0.2%

Technology access

Metric	% of households
Computer access	40.8%
Internet access	93.1%

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

Frequently asked questions

What ZIP codes does Mendota, IL have?

Mendota, IL has one ZIP code: 61342. Each ZIP code serves a distinct delivery area within the city and surrounding region.