Monticello, Illinois Population 2023

6,053

Monticello is a city located in Piatt County Illinois. Monticello has a 2023 population of 6,053. It is also the county seat of Piatt County.Monticello is currently growing at a rate of 1.02% annually and its population has increased by 3.1% since the most recent census, which recorded a population of 5,871 in 2020.

The average household income in Monticello is $87,059 with a poverty rate of 6.92%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Monticello is 39.9 years, 39.3 years for males, and 41.1 years for females.

Monticello Demographics

According to the most recent ACS, the racial composition of Monticello was:

  • White: 95.44%
  • Two or more races: 3.03%
  • Black or African American: 0.82%
  • Other race: 0.69%
  • Asian: 0.02%
  • Native American: 0%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
3.8 sq mi
Density (mi²)
1,574.10/sq mi
Growth Rate
1.02% (61)
Growth Since 2020
3.1% (182)
The current population of Monticello, Illinois is 6,053 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 5,871.

Monticello, Illinois Population 2023

Population by Race

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White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Monticello Population by Race

Monticello Population Pyramid 2023

Monticello Median Age

39.9

Total

39.3

Male

41.1

Female

Monticello Adults

There are 4,832 adults, (1,326 of whom are seniors) in Monticello.

Monticello Age Dependency

76.9

Age Dependency Ratio

37.8

Old Age Dependency Ratio

39.1

Child Dependency Ratio

Monticello Sex Ratio

Female3,23152.1%
Male2,97147.9%

Monticello Population by Age

Monticello Renter vs Owner Occupied by Household Type

2.89

Average Family Size

2.41

Average Household Size

78.5%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Monticello Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Monticello Educational Attainment by Sex (over 25)

Monticello Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among asian people with a rate of 100%.

The highest rate of bachelors degrees is among other race people with a rate of 100%.

Monticello Educational Attainment by Race

All

Male

Female

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$45,228

Average Earnings

$57,988

Average Male

$36,819

Average Female

Monticello Earnings by Educational Attainment

Monticello Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Monticello Language

97.2% of Monticello residents speak only English, while 2.8% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.37% of the population.

Monticello Language

Monticello Poverty by Race

rate

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6.92%

Overall Poverty Rate

6.56%

Male Poverty Rate

7.24%

Female Poverty Rate

Poverty in Monticello

The race most likely to be in poverty in Monticello is Asian, with 100% below the poverty level.

The race least likely to be in poverty in Monticello is White, with 8.88% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.85%. Among those working part-time, it was 7.65%, and for those that did not work, the poverty rate was 11.47%.

Monticello Poverty

rate

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Monticello Poverty Rate by Education

rate

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Monticello Poverty Rate by Employment Status and Sex

Monticello Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Monticello Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

55.9%

Overall Marriage Rate

57.3%

Male Marriage Rate

54.5%

Female Marriage Rate

Monticello Married by Age and Sex

male

female

Monticello Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Monticello Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Monticello Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

264

Number of Veterans

264

Male Veterans

Female Veterans

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Monticello Veterans by War

count

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Monticello Veterans by Age

count

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Monticello Veterans by Race

Monticello Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

0%

Veteran Poverty Rate

45.45%

Veteran Disability Rate

Monticello Veterans by Education

LaborForceParticipation

65.5%

Labor Force Participation

64.4%

Employment Rate

1.7%

Unemployment Rate

Monticello Employment by Age

LaborForceParticipation

Monticello Employment by Race

LaborForceParticipation

Monticello Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

87.98%

Born in Monticello

103.36%

Native Born

1.21%

Foreign Born

0.42%

Non Citizen

0.79%

Naturalized

Place of Birth

103.36% of Monticello residents were born in the United States, with 87.98% having been born in Illinois. 0.42% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Monticello Place of Birth

Note: data after 2021 is projected based on recent change

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Monticello Population by Year