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Monticello, IL

City in Piatt County, Illinois. ZIP codes: 61856.

Population

6,304

Land area

4sq mi

People per sq mi

1,563

ZIP codes

1

Monticello and its ZIP codes

Full map

Monticello at a glance

  • Monticello is about 6.8 times as dense as Illinois as a whole.
  • Households here earn a median of $99,449 a year, 19% more than the Illinois figure of $83,390.
  • A typical owner-occupied home is valued at $210,500 (20% below Illinois) and median rent is $1,379 a month.

Local data for Monticello, IL

Counts from official public data

Housing and community stats

Monticello, IL, American Community Survey 2020-2024

Full profile

Median household income

$99,449

Poverty rate

5.7%

Median home value

$210,500

Median rent

$1,379/mo

Homeownership

82.7%

Bachelor's or higher

40.7%

Median age

43.8

Average commute

23.2 min

Largest reported origins and ancestries: German Americans (1,731), Irish Americans (723), Scottish Americans (203).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, pay, income and spending are for Piatt County. PPP loans are for Monticello.

Details

Unemployment rate

2.8%

Sep 2026, -0.8 pts in a year

Average annual pay

$50,198

3,776 jobs, 2025

Income per person

$70,960

BEA, 2024

Federal spending

$116M

FY 2026, $6,938 per person

PPP loans

$13.9M

313 loans, 1,656 jobs reported

Piatt County economyFederal spendingPPP loans

How people get to work

Monticello, IL, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone90.6%
  • Carpooled2.3%
  • Public transit0.0%
  • Walked0.3%
  • Bicycle0.0%
  • Taxi, ride-hailing, motorcycle or other0.0%
  • Worked from home6.7%

Average one-way commute: 23.2 minutes for people who do not work from home.

Environment and hazard risk

Monticello, IL, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: drought

Storm events since 1996

312

Countywide, mostly thunderstorm wind

Flood insurance policies

26

0.4% of homes, county

July high / Jan low

84° / 17°F

39.6 inches of rain a year

Hazards, floods and storm historyCheck a flood zone

Health statistics

Share of adults in Monticello, IL, CDC PLACES estimates

All 40 measures

Obesity

34.1%

U.S. 33.3% +0.8 pts

Diabetes

10.9%

U.S. 12.1% -1.2 pts

Smoking

11.5%

U.S. 12.8% -1.3 pts

Uninsured (18-64)

5.8%

U.S. 11.1% -5.3 pts

ZIP codes in Monticello

1 in or overlapping Monticello. Population shown

·

Cities near Monticello

NameDistanceLand area (sq mi)
White HeathCensus-designated place4.7 mi0.3
De LandVillage7 mi0.4
BementVillage7.8 mi0.8
CiscoVillage8.5 mi0.2
IvesdaleVillage8.6 mi0.7
SeymourCensus-designated place9 mi0.1
WeldonVillage11 mi0.3
BondvilleVillage12 mi0.3
MansfieldVillage13 mi0.5
SadorusVillage13 mi1
Cerro GordoVillage13 mi0.7
MahometVillage14 mi9.7
ArgentaVillage14 mi0.7
Farmer CityCity15 mi2.4
De WittVillage15 mi0.2
Lake of the WoodsCensus-designated place16 mi1.7

Frequently asked questions

What county is Monticello, IL in?
Monticello is in Piatt County, Illinois.
What ZIP codes are in Monticello, IL?
ZIP codes in or overlapping Monticello include 61856.
What is the population of Monticello, IL?
About 6,304 people live in Monticello, based on American Community Survey 5-year estimates.
What cities are near Monticello?
Nearby places include White Heath (4.7 mi), De Land (7 mi), Bement (7.8 mi), Cisco (8.5 mi), Ivesdale (8.6 mi).

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023

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