Monmouth, IA demographics:
population, income, and more

Total population
121
8.0% year-over-year change
Median household income
$51,875/yr
11.8% year-over-year change
Housing units
57
9.6% year-over-year change

Monmouth population

How many people live in Monmouth

Monmouth is home to 121 residents, according to the most recent Census data. Gender-wise, 50.4% of Monmouth locals are male, and 49.6% are female.

Total population
121
8.0% year-over-year change
Gender ratio
Male
50.4%
61
Female
49.6%
60
Value Percent YoY change
Male 61 50.4% 15.1%
Female 60 49.6% 1.7%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Monmouth is 56, with the population distributed as follows: about 9.1% are children under 15, then 5.8% are in the 15 to 24 age group. Adults between 25 and 44 make up 19% of the population, while another 37.2% fall into the 45 to 64 bracket. Finally, around 28.9% are 65 or older.

Median age
56.5
Age breakdown
Under 15
9.1%
15 to 24
5.8%
25 to 44
19%
45 to 64
37.2%
Over 65
28.9%
Value Percent YoY change
Under 15 11 9.1% 10.0%
15 to 24 7 5.8% 75.0%
25 to 44 23 19% 35.3%
45 to 64 45 37.2% 9.8%
Over 65 35 28.9% -12.5%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

Citizenship
U.S.-born citizens
100%
Non-U.S.-born citizens
0%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 121 100% 11.0%
Racial breakdown
White
100%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
0%
Other
0%
Value Percent
White 121 100%

Households in Monmouth

A peek inside Monmouth households

Monmouth has 57 households, with an average of 2 members in each. Of these, 79% are families, while the remaining 21% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
57
9.6% year-over-year change
Average people per household
2
Non-family households
12
Family households
45
Value Percent YoY change
Non-family households 12 21% 20.0%
Family households 45 79% 7.1%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Monmouth

The housing landscape of Monmouth

Monmouth's housing consists of 57 units, with 86% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 14% of the housing landscape.

Housing units
57
9.6% year-over-year change
Housing types
Value Percent
1 unit, detached 49 86%
Mobile home 8 14%
Homes built since 2020
2
% year-over-year change

The age of buildings in Monmouth

In Monmouth, the median construction year is 1938. About 54.4% of homes were built before the 1940s, with another 12.3% going up by 1949. Most development happened in the second half of the 20th century. Then, 7% of homes were added from 2000 to 2009, 5.3% between 2010 and 2019, and 3.5% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 31 54.4% 0.0%
Built between 1940 and 1949 7 12.3% 250.0%
Built between 1950 and 1959 2 3.5% 100.0%
Built between 1960 and 1969 3 5.3% 50.0%
Built between 1970 and 1979 2 3.5% 100.0%
Built between 1980 and 1989 2 3.5% -50.0%
Built between 1990 and 1999 1 1.8% -83.3%
Built between 2000 and 2009 4 7% 33.3%
Built between 2010 and 2019 3 5.3% 50.0%
Built in 2020 or later 2 3.5% N/A
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Monmouth occupancy rates

Out of the 57 occupied housing units in Monmouth, 91.2% are owner-occupied, while 8.8% are lived in by tenants.

Occupied housing units
57
9.6% year-over-year change
Occupancy breakdown
Renter occupied
5
Owner occupied
52
Value Percent YoY
change
Renter occupied 5 8.8% -44.4%
Owner occupied 52 91.2% 20.9%
Unoccupied housing units
0.0%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Monmouth housing costs

Median housing costs per month
$630/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.

Education in Monmouth

Monmouth education at a glance

About 68.2% of the population in Monmouth went to high school, while 23.6% pursued college studies. Another 1.8% earned an associate degree and 1.8% hold a bachelor’s. Meanwhile, 4.6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
High school diploma 75 68.2% -1.3%
College diploma 26 23.6% 44.4%
Associate degree 2 1.8% -33.3%
Bachelor's degree 2 1.8% 0.0%
Graduate degree 5 4.6% 66.7%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Monmouth

How much people earn in Monmouth

The average annual household income in Monmouth was $80,093 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +15.6% change from the previous year. At the same time, the median income stood at $51,875, reflecting a +11.8% shift over the same period.

Average household income in Monmouth
$80,093/year
15.6% year-over-year change
Median household income in Monmouth
$51,875/year
11.8% year-over-year change

Monmouth income by age

In Monmouth, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $63,750. Overall, 81.8% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $63,750 N/A
Above poverty level
99
Below poverty level
22
Value Percent YoY
change
Above poverty level 99 81.8% 20.7%
Below poverty level 22 18.2% -26.7%

Employment in Monmouth

Workforce and job types in Monmouth

The job market in Monmouth is powered by 64 working residents, spread across a range of industries and roles. 29.7% of the working population are employed in professional or administrative positions, while 70.3% are in hands-on or service-based jobs. Also, 10.9% run their own businesses, 70.3% are employed by private companies, and 12.5% work in the public sector.

Workforce demographics

Working population
64
45.5% year-over-year change
White collar
19
Blue collar
45
Value Percent YoY change
White collar 19 29.7% 111.1%
Blue collar 45 70.3% 28.6%
Employer type
Self employees
10.9%
Private companies
70.3%
Governmental workers
12.5%
Not for profit companies
6.2%
Value Percent YoY change
Self employees 7 10.9% 75.0%
Private companies 45 70.3% 36.4%
Governmental workers 8 12.5% 33.3%
Not for profit companies 4 6.2% 300.0%
Unemployment rate
1.5%
0.0% year-over-year change

Available workforce

The unemployment rate in Monmouth stands at 1.5%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Monmouth

How people get around in Monmouth

Means of transportation
Value Percent YoY change
Car 62 96.9% 44.2%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Monmouth by zipcode?

Zipcode Population Number of households Median income Average income
52309 443 190 $56,250 $78,881

Explore more communities

FAQs about Monmouth demographics 

What is the total population of Monmouth?

Monmouth has a total population of 121 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +8.0% compared to a year ago.

What is the gender ratio in Monmouth?

The gender ratio in Monmouth is as follows:
  • 50.4% males (61 residents)
  • 49.6% females (60 residents)

What is the median age in Monmouth?

The median age in Monmouth is 56.5.

What is the age distribution of the population in Monmouth?

The age distribution in Monmouth is as follows:
  • Under 15: 9.1% (11 residents)
  • Ages 15-24: 5.8% (7 residents)
  • Ages 25-44: 19% (23 residents)
  • Ages 45-64: 37.2% (45 residents)
  • Over 65: 28.9% (35 residents)

What is the racial and ethnic makeup of Monmouth?

The racial and ethnic makeup of Monmouth is as follows:
  • White: 100% (121 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 0% (0 residents)
  • Other: 0% (0 residents)

What percentage of the population in Monmouth are U.S.-born citizens?

U.S.-born citizens represent 100% of the population in Monmouth.

How many housing units are there in Monmouth?

There are 57 housing units in Monmouth, reflecting a +9.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Monmouth and what is the average household size?

Monmouth has a total of 57 households, with an average of 2 people in each.

What is the median household income in Monmouth?

Monmouth has a median household income of $51,875, representing a +11.8% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Monmouth?

The employment rate is 98.5% in Monmouth, with a workforce of 64 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 29.7% (19 residents)
  • Blue-collar workers: 70.3% (45 residents)

Places of employment:
  • Self-employed: 10.9% (7 residents)
  • Private companies: 70.3% (45 residents)
  • Governmental workers: 12.5% (8 residents)
  • Not-for-profit companies: 6.2% (4 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025