Monmouth Flag

Monmouth

County:
Jackson County
County Seat:
No
Area (mi²):
0.569
State:
Iowa

Monmouth is a city located in Jackson County, Iowa. Monmouth has a 2026 population of 129. Monmouth is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 129 in 2020.

The median household income in Monmouth is $51,875 with a poverty rate of 18.18%. The median age in Monmouth is 56.5 years: 56.4 years for males, and 56.6 years for females. For every 100 females there are 101.7 males.

129
Total Population
227
Density (mi²)

Monmouth Population

Monmouth Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202612900%
202512900%
202412900%
202312921.57%
2022127-1-0.78%
2021128-1-0.78%
202012900%
2019153-1-0.65%
201815421.32%
2017152-1-0.65%
201615321.32%
2015151-3-1.95%
2014154-1-0.65%
201315510.65%
2012154-1-0.65%
201115521.31%
201015600%

Median Age

Overall: 56.5 years
Female: 56.6 years
Male: 56.4 years

Monmouth Adults

There are 110 adults, (35 of whom are seniors) in Monmouth.

Sex Ratio

Female: 60 (49.6%)
Male: 61 (50.4%)

Demographics

The racial composition of Monmouth includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White121100%
Race
Population ↓
Percentage (of total)
White121100%

Monmouth Marital Status

Economics and Income Statistics

Monmouth 's average per capita income is $39,722. Household income levels show a median of $51,875. The poverty rate stands at 18.18%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Families$55,781$85,236
Households$51,875$80,093
Non Families$46,250$51,833
Married Families--

$39,722

Average Income

$51,875

Median Household Income

18.18%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)