Monticello, IL Profile: Facts, Map & Data


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Monticello, Illinois - Basic Facts

The City of Monticello is an incorporated place (Class Code P1) located in Piatt County at latitude 40.0335 and longitude -88.5741. Piatt County is in the Central time zone (GMT -6). The elevation is 659 feet.

The formal official name is the City of Monticello, but most people and references simply refer to it as Monticello, Illinois.

The P1 Census Class Code for Monticello indicates a populated place that is also an incorporated place with the same name and the same census code. The Incorporated Place has a Functional Status Code "A" which identifies an active government providing primary general-purpose functions.

The formal boundaries for the City of Monticello (see map below) encompass a land area of 3.8 sq. miles and a water area of 0.04 sq. miles.

City of Monticello, IL Boundary Map


Also See: BIG Map | Driving Directions | IL Congressional Districts
Boundary Maps: Township of Monticello | Piatt County | Illinois Counties

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Monticello, IL Data & Demographics (As of July 1, 2014)


Total Population 5,561
Population in Households 5,533
Population in Familes 4,569
Population in Group Qrtrs 28
Population Density1 1,463
Diversity Index2 9


Total Households 2,343
Average Household Size 2.36
Family Households 1,578
Average Family Size 3


Total Housing Units 2,547 (100%)
Owner Occupied HU 1,809 (71.0%)
Renter Occupied HU 534 (21.0%)
Vacant Housing Units 204 ( 8.0%)
Median Home Value $171,631
Average Home Value $193,412


Median Household Income $60,217
Average Household Income $73,876
Per Capita Income $31,174
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population 0.06% -0.16%
Households 0.11% -0.15%
Families 0.07% -0.27%
Median Household Income   2.39%
Per Capita Income   1.76%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Monticello, IL - Peer Comparisons by Rank and Percentile

The table below compares Monticello to the other 1,367 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2014 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 322 77th
Population Density1 # 509 63rd
Diversity Index2 # 888 35th
Median Household Income # 377 72nd
Per Capita Income # 271 80th

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.