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Monmouth (IL) Streets, Geographical, Population & More

E Broadway
E 2nd Ave
200th Ave
W Broadway
Lake Warren Dr
E 1st Ave
N 2nd St
S 6th St
S 8th St
210th Ave
E Harlem Ave
PO Box
S B St
S D St
E Boston Ave
S C St
N D St
S 9th St
E 3rd Ave
S 5th St
N A St
N B St
N 10th St
N 3rd St
S 10th St
E Detroit Ave
N E St
N 1st St
N G St
S 2nd St

Population of Monmouth, Illinois

StateIllinois
Land Area (mi²)4.2 sq mi
Density (mi²)2,094.1/sq mi
2022 Growth Rate-0.61% (-54)
Growth Since 2020-0.49% (-43)
Rank in State247th
Rank in Country4511th

The population of Monmouth, IL in 2022 is estimated to be 8,794. This is a decrease of -0.61% (-54 people) compared to the population in 2021.

Population of Monmouth by Race

Population by Race
  • Total
  • Hispanic
  • Non-Hispanic
Race
Population
Percentage

Population of Monmouth by Age

Monmouth Population Pyramid 2022
Monmouth Median Age
36.5
Total
34.9
Male
38.1
Female
Monmouth Sex Ratio
47.48%
4,196
Male
52.52%
4,641
Female
Monmouth Age Dependency Ratio
27.8
Old Age Dependency Ratio
36.2
Child Dependency Ratio
Monmouth Adults
6,886
Adults
(1,498 of whom are seniors) in Monmouth.

Population of Monmouth by Year

Year
PopulationGrowthAnnual Growth Rate
Streets