Monticello ZIP Codes — Piatt County, IL

There is one unique ZIP code in Monticello, Illinois and it is 61856. Area code: 217.

ZIP codes

107.92

sq mi land

0.12

sq mi water

217

area code

Monticello, IL ZIP code map

About Monticello, IL

Monticello, Illinois, is a quaint city located in Piatt County, known for its rich agricultural heritage. With a welcoming community and a variety of local amenities, it has become a desirable place to live and work. Surrounded by picturesque landscapes and historical significance, Monticello offers a unique blend of rural charm and small-town vibrancy.

Location & geography

Situated in the central region of Illinois, Monticello is conveniently located near several towns, including Champaign approximately 20 miles to the south and Decatur roughly 25 miles to the west. The city spans a total land area of 107.92 square miles, with a minimal water area of 0.12 square miles. Its terrain features rolling landscapes typical of the Midwest, perfectly suited for agriculture.

Community & economy

The character of Monticello is rooted in its strong sense of community and active local participation in various events and organizations. Agriculture and retail serve as significant components of the local economy, providing both jobs and sustenance for its residents. Daily life in Monticello is characterized by a friendly atmosphere, where neighbors know each other and community events foster camaraderie.

Transportation

Monticello is accessible via key highways, including U.S. Route 51, which provides direct connections to nearby cities and beyond. The nearest airport is the University of Illinois Willard Airport, located about 22 miles away, offering regional air travel options. Public transportation options are limited, making personal vehicles the primary mode of transit in the area.

History

Monticello was founded in the early 19th century and has developed a robust history centered around agriculture and local commerce. The city's agricultural roots are still evident today and play a vital role in its economy and community identity. Notable events in Monticello's history include the establishment of the Piatt County Fair, which showcases local agriculture and provides entertainment for families.

Did you know?

A little-known fact about Monticello is that it is home to the beautiful Piatt County Courthouse, a historical landmark that reflects the architectural style of late 19th-century America. Additionally, Monticello boasts an extensive network of walking and biking trails, offering residents and visitors a chance to explore the natural beauty of the area.

ZIP codes for Monticello, IL (1)

ZIP code	City	County	Map
61856	Monticello	Piatt	View map

Demographics & statistics

8,315

Population

40.3

Median age

$86,269

Median household income

$42,235

Per capita income

$208,400

Median home value

$991

Median monthly rent

83.4%

Home ownership

6.6%

Poverty rate

3.1%

Unemployment

3,005

Housing units

38.8%

Bachelor's or higher

Age distribution

Male Female

255

Under 5

253

365

5–9

362

199

10–14

197

213

15–19

212

172

20–24

170

541

25–34

537

501

35–44

498

359

45–54

357

306

55–59

304

357

60–64

354

509

65–74

506

230

75–84

229

165

85+

164

← Male

Female →

Age summary

Group	Count	%
Under 18	1,922	23.1%
18 and over	6,393	76.9%
65 and over	1,803	21.7%
Median age	40.3 years

Race & ethnicity

White 95.9%

Two or more races 2.4%

Black or African American 1%

Hispanic or Latino 0.7%

Group	Count	%
White	8,030	95.9%
Two or more races	200	2.4%
Black or African American	84	1%
Hispanic or Latino	55	0.7%

Household income

Under $10k 4.5%

$10k–$15k 1.9%

$15k–$25k 6.5%

$25k–$35k 5.0%

$35k–$50k 7.6%

$50k–$75k 19.8%

$75k–$100k 11.6%

$100k–$150k 25.8%

$150k–$200k 9.8%

$200k+ 7.5%

Range	% of households
Under $10k	4.5%
$10k–$15k	1.9%
$15k–$25k	6.5%
$25k–$35k	5.0%
$35k–$50k	7.6%
$50k–$75k	19.8%
$75k–$100k	11.6%
$100k–$150k	25.8%
$150k–$200k	9.8%
$200k+	7.5%
Median income	$86,269

Housing

Home values

Under $50k 1.7%

$50k–$100k 2.9%

$100k–$150k 17.6%

$150k–$200k 24.5%

$200k–$300k 29.8%

$300k–$500k 20.5%

$500k–$1M 2.6%

$1M+ 0.3%

Housing overview

Metric	Value
Median home value	$208,400
Median rent / month	$991
Owner occupied	83.4%
Renter occupied	16.6%
Vacant	4.9%
Single-family detached	82.6%
Large apartment buildings	4.4%
Mobile homes	1.5%
Median rooms	6.6
Avg household size (owned)	2.59

Year built

Era	%
2020 or later	0.0%
2010–2019	6.3%
2000–2009	16.7%
1990–1999	12.9%
1980–1989	9.5%
1970–1979	16.7%
1960–1969	12.9%
1950–1959	5.9%
1940–1949	3.5%
1939 or earlier	15.5%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	8.7%
2 bedrooms	25.1%
3 bedrooms	35.3%
4 bedrooms	24.4%
5+ bedrooms	4.5%

Vehicles per household

Vehicles	% of households
No vehicle	2.4%
1 vehicle	25.8%
2 vehicles	45.2%
3 or more	26.6%

Heating fuel

Fuel type	%
Utility gas	61.4%
Electricity	28.2%
Propane / LP gas	8.2%
Fuel oil	1.0%
Wood	0.6%

Households & families

Household type	Count	%
Married-couple family	1,952	57.5%
Cohabiting couple	152	4.5%
Male householder, no spouse	566	16.7%
Female householder, no spouse	722	21.3%
Households with children under 18	942	27.8%
Households with seniors (65+)	1,250	36.9%
Average household size	2.43

Marital status

Status	Male	Female
Never married	23.9%	17.5%
Married	62.5%	59.3%
Separated	0.7%	0.6%
Widowed	3.4%	9.4%
Divorced	9.5%	13.2%

Education

Less than 9th grade 2.1%

Some HS, no diploma 5.2%

HS graduate 24.9%

Some college, no degree 17.0%

Associate's degree 12.1%

Bachelor's degree 24.7%

Graduate / professional 14.1%

Metric	%
HS diploma or higher	92.7%
Bachelor's or higher	38.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	225	13.2%
Kindergarten	105	6.2%
Elementary school	833	49.0%
High school	299	17.6%
College / grad school	238	14.0%

Employment

Industry of employment

Education & healthcare 41.0%

Manufacturing 7.9%

Finance & real estate 7.9%

Professional & management 7.1%

Retail trade 6.4%

Transportation & utilities 5.9%

Construction 5.3%

Agriculture & mining 4.6%

Arts, food & hospitality 4.3%

Wholesale trade 3.4%

Public administration 2.9%

Other services 2.0%

Information 1.3%

Occupation

Category	%
Management, business & arts	46.4%
Service	13.4%
Sales & office	20.6%
Natural resources & construction	7.7%
Production & transportation	11.9%

Employment type

Type	%
Private sector	70.4%
Government	23.6%
Self-employed	6.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	87.1%
Carpool	4.2%
Public transit	0.5%
Walk	0.5%
Other means	0.0%
Avg commute (minutes)	23.6

Poverty

All people 6.6%

Under 18 years 8.4%

18 and over 6.1%

Married-couple families 2.0%

Female-led households 22.1%

Income support

Source	% of households
Social Security	39.7%
Retirement income	37.7%
Supplemental Security	1.4%
Cash public assistance	1.2%
Food stamps / SNAP	3.4%

Health indicators

Condition	%
High blood pressure	32.3%
High cholesterol	34.9%
Heart disease	6.2%
Stroke	2.8%
Asthma	9.1%
Arthritis	26.7%
Kidney disease	2.7%
Pulmonary disease	6.2%
Cancer	7.7%

Behavior / access	%
Binge drinking	15.4%
No physical activity	20.8%
Less than 7 hrs sleep	29.7%
Fair or poor health	11.4%
Poor mental health	11.5%
Poor physical health	8.7%
No health insurance	8.4%
Visited doctor (checkup)	77.8%
Visited dentist	69.8%
Cholesterol screening	91.9%
Teeth loss	10.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	286	4.5%

Disability	%
Any disability	11.0%
Under 18	1.5%
18–64 years	9.9%
65 and over	24.3%

Health insurance coverage

Type	%
Private insurance	81.9%
Public insurance	31.5%
Uninsured under 19	1.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,807	93.9%
Spanish	36	0.5%
Other Indo-European	36	0.5%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	8,294	99.7%
Born in same state	8,249	99.2%
Born in different state	6,816	82.0%
Foreign born	45	0.5%
Naturalized citizen	21	0.3%
Not a US citizen	21	100.0%

Ancestry

Ancestry	Count	%
French	1,343	16.2%
Italian	1,162	14%
Arab	609	7.3%
English	137	1.6%

Ancestry	Count	%
Polish	132	1.6%
Irish	63	0.8%
German	19	0.2%

Technology access

Metric	% of households
Computer access	40.8%
Internet access	93.5%

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

Frequently asked questions

What ZIP codes does Monticello, IL have?

Monticello, IL has one ZIP code: 61856. Each ZIP code serves a distinct delivery area within the city and surrounding region.