Monticello, Illinois Population 2024

5,978

Monticello is a city located in Piatt County Illinois. Monticello has a 2024 population of 5,978. It is also the county seat of Piatt County.Monticello is currently declining at a rate of -0.15% annually but its population has increased by 0.56% since the most recent census, which recorded a population of 5,945 in 2020.

The average household income in Monticello is $90,473 with a poverty rate of 8.44%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Monticello is 40.5 years, 39.2 years for males, and 41.4 years for females.

Monticello Demographics

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

  • White: 96.02%
  • Two or more races: 2.64%
  • Black or African American: 1.33%
  • Asian: 0.02%
  • Native American:
  • Native Hawaiian or Pacific Islander:
  • Other race:
Land Area (mi²)
3.8 sq mi
Density (mi²)
1,554.60/sq mi
Growth Since 2020
0.56% (33)
The current population of Monticello, Illinois is 5,978 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 5,945.

Monticello, Illinois Population 2024

Population by Race

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Race
Population
Percentage (of total)
White6,08596.02%
Two or more races1672.64%
Black or African American841.33%
Asian10.02%
Native American
Native Hawaiian or Pacific Islander
Other race
showing: 7 rows

White

Two or more races

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Other race

Monticello Population by Race

Monticello Population Pyramid 2024

Monticello Median Age

40.5

Total

39.2

Male

41.4

Female

Monticello Adults

There are 4,994 adults, (1,464 of whom are seniors) in Monticello.

Monticello Age Dependency

79.5

Age Dependency Ratio

41.5

Old Age Dependency Ratio

38

Child Dependency Ratio

Monticello Sex Ratio

Female3,35852.99%
Male2,97947.01%

Monticello Population by Age

Monticello Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All2,6362.3880.819.2
Married1,4532.9594.65.4
Non Family8881.186238
Female2253.2159.640.4
Male702.871000
showing: 5 rows

2.9

Average Family Size

2.38

Average Household Size

80.8%

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 2+ races people with a rate of 78.79%.

Monticello Educational Attainment by Race

All

Male

Female

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$50,600

Average Earnings

$60,775

Average Male

$40,036

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

98.1% of Monticello residents speak only English, while 1.9% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.9% of the population.

Monticello Language

Monticello Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White6,0655068.34%
Black842630.95%
Asian11100%
showing: 3 rows

8.44%

Overall Poverty Rate

7.03%

Male Poverty Rate

9.69%

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 8.34% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.08%. Among those working part-time, it was 10.3%, and for those that did not work, the poverty rate was 13.92%.

Monticello Poverty

rate

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Rate
Poverty
Less Than 9th Grade19.39%
High School11.93%
Some College9.07%
Bachelors or Greater0.94%
showing: 4 rows

Monticello Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed60.98%
Female Employed4.38%
Male Employed2.43%
Male Unemployed
showing: 4 rows

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

58.1%

Overall Marriage Rate

62.1%

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 35-44, 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

219

Number of Veterans

219

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

Veteran Poverty Rate

50.23%

Veteran Disability Rate

Monticello Veterans by Education

LaborForceParticipation

62.8%

Labor Force Participation

61.8%

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

83.23%

Born in Monticello

99.67%

Native Born

0.33%

Foreign Born

Non Citizen

0.33%

Naturalized

Place of Birth

99.67% of Monticello residents were born in the United States, with 83.23% having been born in Illinois. 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 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20295,933-9-0.15%
20285,942-9-0.15%
20275,951-9-0.15%
20265,960-9-0.15%
20255,969-9-0.15%
20245,978-9-0.15%
20235,987-9-0.15%
20225,996-9-0.15%
20216,005601.01%
20205,9453846.91%
20195,561
20185,56110.02%
20175,560-20-0.36%
20165,580671.22%
20155,513-15-0.27%
20145,528-3-0.05%
20135,531520.95%
20125,479-58-1.05%
20115,537-23-0.41%
20105,5604228.21%
20005,13858912.95%
19904,549-204-4.29%
19804,75362315.08%
19704,13091128.3%
19603,21960723.24%
19502,612893.53%
19402,523
showing: 27 rows

Monticello Population by Year