Lacon ZIP Codes — Marshall County, IL

There is one unique ZIP code in Lacon, Illinois and it is 61540. Area code: 309.

ZIP codes

52.65

sq mi land

6.36

sq mi water

309

area code

Lacon, IL ZIP code map

About Lacon, IL

Lacon, Illinois, is a small yet vibrant city located in Marshall County. With its rich history and welcoming community, it serves as a hidden gem in central Illinois. The city offers a peaceful environment with a blend of rural charm and modern amenities.

Location & geography

Lacon is situated in the heart of Illinois, approximately 30 miles northwest of Peoria and about 25 miles southeast of Moline. The area boasts a total land area of 52.65 square miles, with an additional 6.36 square miles of water, giving it a diverse terrain. The nearby Illinois River adds to the scenic beauty and recreational opportunities available in the region.

Community & economy

The community in Lacon embodies a strong sense of camaraderie and local pride. Residents are engaged in various industries, including agriculture and manufacturing, which contribute to the town's economy. Daily life in Lacon is characterized by small-town values, with a focus on community events and family-oriented activities.

Transportation

Lacon is conveniently accessible via several key highways, including Illinois Route 17 and Illinois Route 26, which facilitate travel to surrounding areas. The nearest major airport is the General Wayne A. Downing Peoria International Airport, located approximately 30 miles away. Local transit options provide limited services but support the city's transportation needs.

History

Lacon was founded in the mid-19th century and has since been known for its strong agricultural roots and industrious spirit. Throughout its history, the city has been a hub for trade and manufacturing, with key industries evolving over time. Notable events in Lacon's history include its establishment as a pivotal river town community that supported regional commerce.

Did you know?

One surprising fact about Lacon is that it has a strong presence of local wildlife due to its proximity to the Illinois River and numerous parks. Additionally, Lacon is known for its historic downtown area, featuring a number of buildings listed on the National Register of Historic Places.

ZIP codes for Lacon, IL (1)

ZIP code	City	County	Map
61540	Lacon	Marshall	View map

Demographics & statistics

2,771

Population

45.1

Median age

$69,444

Median household income

$35,722

Per capita income

$138,100

Median home value

$870

Median monthly rent

79.8%

Home ownership

13.0%

Poverty rate

5.3%

Unemployment

1,025

Housing units

16.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

106

15–19

111

20–24

121

25–34

128

166

35–44

174

130

45–54

137

107

55–59

113

131

60–64

138

140

65–74

147

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	617	22.3%
18 and over	2,154	77.7%
65 and over	634	22.9%
Median age	45.1 years

Race & ethnicity

White 95.5%

Black or African American 1.5%

Hispanic or Latino 1.2%

Other race 1.1%

Asian 0.6%

Two or more races 0.1%

Group	Count	%
White	2,678	95.5%
Black or African American	41	1.5%
Hispanic or Latino	34	1.2%
Other race	31	1.1%
Asian	16	0.6%
Two or more races	4	0.1%

Household income

Under $10k 5.2%

$10k–$15k 1.6%

$15k–$25k 10.8%

$25k–$35k 5.1%

$35k–$50k 11.1%

$50k–$75k 20.6%

$75k–$100k 11.1%

$100k–$150k 23.2%

$150k–$200k 7.2%

$200k+ 4.3%

Range	% of households
Under $10k	5.2%
$10k–$15k	1.6%
$15k–$25k	10.8%
$25k–$35k	5.1%
$35k–$50k	11.1%
$50k–$75k	20.6%
$75k–$100k	11.1%
$100k–$150k	23.2%
$150k–$200k	7.2%
$200k+	4.3%
Median income	$69,444

Housing

Home values

Under $50k 5.2%

$50k–$100k 24.8%

$100k–$150k 22.5%

$150k–$200k 16.7%

$200k–$300k 21.4%

$300k–$500k 9.0%

$500k–$1M 0.4%

Housing overview

Metric	Value
Median home value	$138,100
Median rent / month	$870
Owner occupied	79.8%
Renter occupied	20.2%
Vacant	14.6%
Single-family detached	90.6%
Large apartment buildings	0.3%
Mobile homes	1.5%
Median rooms	6.5
Avg household size (owned)	2.42

Year built

Era	%
2020 or later	0.0%
2010–2019	1.0%
2000–2009	6.2%
1990–1999	4.8%
1980–1989	6.5%
1970–1979	19.8%
1960–1969	9.9%
1950–1959	15.3%
1940–1949	8.8%
1939 or earlier	27.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	5.1%
2 bedrooms	27.0%
3 bedrooms	47.3%
4 bedrooms	17.6%
5+ bedrooms	2.3%

Vehicles per household

Vehicles	% of households
No vehicle	3.1%
1 vehicle	20.4%
2 vehicles	43.7%
3 or more	32.8%

Heating fuel

Fuel type	%
Utility gas	52.6%
Electricity	25.5%
Propane / LP gas	15.9%
Fuel oil	0.9%
Wood	4.4%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	665	62.9%
Cohabiting couple	49	4.6%
Male householder, no spouse	97	9.2%
Female householder, no spouse	247	23.3%
Households with children under 18	341	32.2%
Households with seniors (65+)	398	37.6%
Average household size	2.52

Marital status

Status	Male	Female
Never married	28.8%	19.3%
Married	63.3%	55.3%
Separated	1.7%	1.5%
Widowed	2.1%	12.8%
Divorced	4.0%	11.0%

Education

Less than 9th grade 2.7%

Some HS, no diploma 1.4%

HS graduate 43.7%

Some college, no degree 21.2%

Associate's degree 14.1%

Bachelor's degree 11.0%

Graduate / professional 5.9%

Metric	%
HS diploma or higher	95.9%
Bachelor's or higher	16.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	14	2.5%
Kindergarten	24	4.3%
Elementary school	242	43.6%
High school	194	35.0%
College / grad school	81	14.6%

Employment

Industry of employment

Education & healthcare 27.6%

Manufacturing 14.7%

Arts, food & hospitality 10.4%

Transportation & utilities 9.2%

Retail trade 7.5%

Construction 7.4%

Wholesale trade 6.4%

Other services 4.4%

Agriculture & mining 4.3%

Professional & management 3.5%

Finance & real estate 2.3%

Public administration 2.3%

Information 0.1%

Occupation

Category	%
Management, business & arts	30.4%
Service	20.1%
Sales & office	19.7%
Natural resources & construction	13.8%
Production & transportation	15.9%

Employment type

Type	%
Private sector	80.8%
Government	14.5%
Self-employed	4.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	85.8%
Carpool	5.0%
Public transit	0.0%
Walk	2.6%
Other means	0.3%
Avg commute (minutes)	32.3

Poverty

All people 13.0%

Under 18 years 19.1%

18 and over 11.4%

Married-couple families 2.9%

Female-led households 40.0%

Income support

Source	% of households
Social Security	41.9%
Retirement income	31.8%
Supplemental Security	6.0%
Cash public assistance	1.4%
Food stamps / SNAP	10.7%

Health indicators

Condition	%
High blood pressure	35.6%
High cholesterol	35.5%
Heart disease	7.6%
Stroke	3.5%
Asthma	9.5%
Arthritis	29.9%
Kidney disease	3.2%
Pulmonary disease	7.9%
Cancer	8.2%

Behavior / access	%
Binge drinking	14.4%
No physical activity	25.1%
Less than 7 hrs sleep	31.3%
Fair or poor health	14.5%
Poor mental health	12.4%
Poor physical health	10.3%
No health insurance	10.0%
Visited doctor (checkup)	77.8%
Visited dentist	65.8%
Cholesterol screening	90.6%
Teeth loss	14.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	192	8.9%

Disability	%
Any disability	12.4%
Under 18	1.9%
18–64 years	10.7%
65 and over	28.4%

Health insurance coverage

Type	%
Private insurance	72.7%
Public insurance	39.6%
Uninsured under 19	0.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,620	94.6%
Spanish	4	0.2%
Other Indo-European	4	0.2%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,771	100.0%
Born in same state	2,752	99.3%
Born in different state	2,425	87.5%
Foreign born	19	0.7%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	362	13.1%
French	328	11.8%
Arab	285	10.3%
Dutch	45	1.6%

Ancestry	Count	%
English	33	1.2%
Polish	21	0.8%
Norwegian	5	0.2%

Technology access

Metric	% of households
Computer access	38.2%
Internet access	87.0%

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

Frequently asked questions

What ZIP codes does Lacon, IL have?

Lacon, IL has one ZIP code: 61540. Each ZIP code serves a distinct delivery area within the city and surrounding region.