Ottawa ZIP Codes — La Salle County, IL

There is one unique ZIP code in Ottawa, Illinois and it is 61350. Area code: 815.

ZIP codes

152.54

sq mi land

5.68

sq mi water

815

area code

Ottawa, IL ZIP code map

About Ottawa, IL

Ottawa, IL, is a charming city located in La Salle County, Illinois. Known for its vibrant community and rich history, Ottawa serves as one of the prominent cities in the region. It offers a blend of urban amenities and picturesque landscapes, making it an attractive spot for both residents and visitors.

Location & geography

Ottawa is situated in north-central Illinois, approximately 90 miles southwest of Chicago. It is bordered by several cities, including La Salle to the north (about 5 miles), Peru to the northeast (about 7 miles), and Streator to the southeast (about 22 miles). The total land area of Ottawa spans 152.54 square miles, complemented by a water area of 5.68 square miles, showcasing a beautiful blend of land and waterways.

Community & economy

Ottawa embodies a strong sense of community with its friendly atmosphere and diverse population. The local economy is supported by various industries, including manufacturing, healthcare, and retail, contributing to a balanced and thriving daily life. Residents often engage in community events, reflecting the city’s commitment to fostering connections among its citizens.

Transportation

Ottawa is easily accessible via major highways, including Interstate 80, which runs just north of the city and links it to various parts of Illinois. The nearest airport is the Illinois Valley Regional Airport, located just a few miles away, providing convenient air travel options. Public transportation is available within the area, making it easy for residents to commute.

History

Ottawa was founded in the early 19th century and quickly became a key part of the Illinois River trade route. Initially, the economy was bolstered by industries such as milling and transportation, which played a significant role during its developmental years. Key events in the city's history include its incorporation as a city in 1853, which solidified its status as a regional hub.

Did you know?

A surprising fact about Ottawa is that it is home to the Starved Rock State Park, a popular destination known for its stunning canyons and hiking trails. Additionally, Ottawa has been recognized for its historic downtown area, which features beautifully preserved 19th-century architecture.

ZIP codes for Ottawa, IL (1)

ZIP code	City	County	Map
61350	Ottawa	La Salle	View map

Demographics & statistics

24,385

Population

41.7

Median age

$72,323

Median household income

$36,831

Per capita income

$154,400

Median home value

$909

Median monthly rent

71.1%

Home ownership

15.6%

Poverty rate

6.0%

Unemployment

8,139

Housing units

20.3%

Bachelor's or higher

Age distribution

Male Female

663

Under 5

695

748

5–9

784

742

10–14

778

770

15–19

807

564

20–24

592

1,558

25–34

1,635

1,456

35–44

1,527

1,341

45–54

1,407

1,004

55–59

1,054

920

60–64

965

1,196

65–74

1,256

627

75–84

658

311

85+

327

← Male

Female →

Age summary

Group	Count	%
Under 18	5,613	23.0%
18 and over	18,772	77.0%
65 and over	4,375	17.9%
Median age	41.7 years

Race & ethnicity

White 86.8%

Hispanic or Latino 3.9%

Two or more races 3.7%

Black or African American 2.8%

Other race 1.8%

Asian 1%

Group	Count	%
White	22,014	86.8%
Hispanic or Latino	980	3.9%
Two or more races	937	3.7%
Black or African American	708	2.8%
Other race	453	1.8%
Asian	265	1%

Household income

Under $10k 4.4%

$10k–$15k 5.9%

$15k–$25k 7.2%

$25k–$35k 9.3%

$35k–$50k 8.6%

$50k–$75k 17.2%

$75k–$100k 15.8%

$100k–$150k 18.2%

$150k–$200k 7.7%

$200k+ 5.8%

Range	% of households
Under $10k	4.4%
$10k–$15k	5.9%
$15k–$25k	7.2%
$25k–$35k	9.3%
$35k–$50k	8.6%
$50k–$75k	17.2%
$75k–$100k	15.8%
$100k–$150k	18.2%
$150k–$200k	7.7%
$200k+	5.8%
Median income	$72,323

Housing

Home values

Under $50k 3.6%

$50k–$100k 16.9%

$100k–$150k 27.2%

$150k–$200k 19.2%

$200k–$300k 21.8%

$300k–$500k 8.8%

$500k–$1M 2.4%

Housing overview

Metric	Value
Median home value	$154,400
Median rent / month	$909
Owner occupied	71.1%
Renter occupied	28.9%
Vacant	9.6%
Single-family detached	75.1%
Large apartment buildings	3.3%
Mobile homes	1.2%
Median rooms	5.6
Avg household size (owned)	2.50

Year built

Era	%
2020 or later	0.2%
2010–2019	3.5%
2000–2009	9.5%
1990–1999	6.8%
1980–1989	7.6%
1970–1979	13.2%
1960–1969	7.3%
1950–1959	16.2%
1940–1949	11.4%
1939 or earlier	24.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	9.0%
2 bedrooms	33.8%
3 bedrooms	39.5%
4 bedrooms	15.2%
5+ bedrooms	2.1%

Vehicles per household

Vehicles	% of households
No vehicle	6.1%
1 vehicle	34.8%
2 vehicles	39.2%
3 or more	19.8%

Heating fuel

Fuel type	%
Utility gas	82.1%
Electricity	11.9%
Propane / LP gas	4.8%
Fuel oil	0.1%
Wood	0.6%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	4,474	44.9%
Cohabiting couple	845	8.5%
Male householder, no spouse	1,783	17.9%
Female householder, no spouse	2,856	28.7%
Households with children under 18	2,868	28.8%
Households with seniors (65+)	3,000	30.1%
Average household size	2.40

Marital status

Status	Male	Female
Never married	35.4%	27.5%
Married	48.9%	46.6%
Separated	2.8%	1.0%
Widowed	2.3%	12.3%
Divorced	10.6%	12.6%

Education

Less than 9th grade 2.1%

Some HS, no diploma 5.4%

HS graduate 33.2%

Some college, no degree 28.2%

Associate's degree 10.9%

Bachelor's degree 13.4%

Graduate / professional 6.8%

Metric	%
HS diploma or higher	92.5%
Bachelor's or higher	20.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	351	6.6%
Kindergarten	361	6.8%
Elementary school	2,407	45.3%
High school	1,410	26.6%
College / grad school	779	14.7%

Employment

Industry of employment

Education & healthcare 23.9%

Retail trade 14.3%

Manufacturing 13.2%

Transportation & utilities 7.9%

Professional & management 7.7%

Arts, food & hospitality 6.7%

Construction 6.3%

Other services 4.8%

Finance & real estate 4.6%

Public administration 3.3%

Agriculture & mining 3.1%

Wholesale trade 2.4%

Information 1.8%

Occupation

Category	%
Management, business & arts	32.4%
Service	17.1%
Sales & office	19.4%
Natural resources & construction	10.1%
Production & transportation	21.1%

Employment type

Type	%
Private sector	81.1%
Government	15.0%
Self-employed	3.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	83.3%
Carpool	8.9%
Public transit	0.1%
Walk	1.3%
Other means	2.3%
Avg commute (minutes)	23.3

Poverty

All people 15.6%

Under 18 years 24.6%

18 and over 13.1%

Married-couple families 6.2%

Female-led households 28.1%

Income support

Source	% of households
Social Security	32.8%
Retirement income	27.1%
Supplemental Security	5.1%
Cash public assistance	1.6%
Food stamps / SNAP	17.7%

Health indicators

Condition	%
High blood pressure	34.4%
High cholesterol	33.5%
Heart disease	7.4%
Stroke	3.5%
Asthma	9.9%
Arthritis	27.9%
Kidney disease	3.2%
Pulmonary disease	8.2%
Cancer	7.2%

Behavior / access	%
Binge drinking	15.1%
No physical activity	26.4%
Less than 7 hrs sleep	33.2%
Fair or poor health	16.0%
Poor mental health	13.2%
Poor physical health	11.0%
No health insurance	11.9%
Visited doctor (checkup)	76.2%
Visited dentist	62.2%
Cholesterol screening	89.0%
Teeth loss	15.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,402	7.5%

Disability	%
Any disability	12.7%
Under 18	5.0%
18–64 years	10.1%
65 and over	32.0%

Health insurance coverage

Type	%
Private insurance	70.6%
Public insurance	41.3%
Uninsured under 19	2.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	23,027	94.4%
Spanish	427	1.9%
Other Indo-European	353	1.5%
Asian & Pacific Islander	25	0.1%
Other languages	49	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	23,720	97.3%
Born in same state	23,543	96.5%
Born in different state	19,986	82.0%
Foreign born	177	0.7%
Naturalized citizen	665	2.7%
Not a US citizen	278	41.8%

Ancestry

Ancestry	Count	%
Italian	5,259	21.6%
French	2,591	10.6%
Polish	1,191	4.9%
Arab	1,042	4.3%
English	346	1.4%

Ancestry	Count	%
Irish	202	0.8%
Norwegian	193	0.8%
Dutch	110	0.5%
German	21	0.1%

Technology access

Metric	% of households
Computer access	40.8%
Internet access	91.5%

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

Frequently asked questions

What ZIP codes does Ottawa, IL have?

Ottawa, IL has one ZIP code: 61350. Each ZIP code serves a distinct delivery area within the city and surrounding region.