Monmouth is a city located in Benton County and Polk County Oregon. Monmouth has a 2024 population of 11,410. Monmouth is currently growing at a rate of 0.6% annually and its population has increased by 2.44% since the most recent census, which recorded a population of 11,138 in 2020.
The average household income in Monmouth is $76,072 with a poverty rate of 21.07%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Monmouth is 25.2 years, 24.5 years for males, and 25.7 years for females.
According to the most recent ACS, the racial composition of Monmouth was:
White
Two or more races
Other race
Native American
Asian
Native Hawaiian or Pacific Islander
Black or African American
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 3,356 | 2.94 | 44 | 56 |
| Married | 1,517 | 3.72 | 67.2 | 32.8 |
| Non Family | 1,219 | 1.72 | 19.2 | 80.8 |
| Female | 461 | 3.32 | 29.3 | 70.7 |
| Male | 159 | 3.67 | 54.1 | 45.9 |
3.46
Average Family Size
2.94
Average Household Size
44.0%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among asian people with a rate of 100%.
The highest rate of bachelors degrees is among asian people with a rate of 62.71%.
All
Male
Female
$37,715
Average Earnings
$38,481
Average Male
$36,899
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
84.8% of Monmouth residents speak only English, while 15.2% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 12.25% of the population.
rate
21.07%
Overall Poverty Rate
20.32%
Male Poverty Rate
21.89%
Female Poverty Rate
The race most likely to be in poverty in Monmouth is Asian, with 38.83% below the poverty level.
The race least likely to be in poverty in Monmouth is Islander, with 8.16% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.77%. Among those working part-time, it was 34.99%, and for those that did not work, the poverty rate was 24.18%.
Married
Widowed
Divorced
Separated
NeverMarried
35.6%
Overall Marriage Rate
37.8%
Male Marriage Rate
33.6%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
9.01%
Veteran Poverty Rate
26.76%
Veteran Disability Rate
LaborForceParticipation
61.3%
Labor Force Participation
58.3%
Employment Rate
4.9%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
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.
Europe
Asia
Africa
Oceania
Latin America
North America
53.14%
Born in Monmouth
93.59%
Native Born
6.41%
Foreign Born
4.2%
Non Citizen
2.22%
Naturalized
93.59% of Monmouth residents were born in the United States, with 53.14% having been born in Oregon. 4.2% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 11,750 | 68 | 0.58% |
| 2028 | 11,682 | 68 | 0.59% |
| 2027 | 11,614 | 68 | 0.59% |
| 2026 | 11,546 | 68 | 0.59% |
| 2025 | 11,478 | 68 | 0.6% |
| 2024 | 11,410 | 68 | 0.6% |
| 2023 | 11,342 | 68 | 0.6% |
| 2022 | 11,274 | 14 | 0.12% |
| 2021 | 11,260 | 122 | 1.1% |
| 2020 | 11,138 | 610 | 5.79% |
| 2019 | 10,528 | 69 | 0.66% |
| 2018 | 10,459 | 116 | 1.12% |
| 2017 | 10,343 | 188 | 1.85% |
| 2016 | 10,155 | 273 | 2.76% |
| 2015 | 9,882 | 84 | 0.86% |
| 2014 | 9,798 | -21 | -0.21% |
| 2013 | 9,819 | 25 | 0.26% |
| 2012 | 9,794 | 65 | 0.67% |
| 2011 | 9,729 | 179 | 1.87% |
| 2010 | 9,550 | 1,809 | 23.37% |
| 2000 | 7,741 | 1,453 | 23.11% |
| 1990 | 6,288 | 694 | 12.41% |
| 1980 | 5,594 | 357 | 6.82% |
| 1970 | 5,237 | 3,008 | 134.95% |
| 1960 | 2,229 | 273 | 13.96% |
| 1950 | 1,956 | 991 | 102.69% |
| 1940 | 965 | 59 | 6.51% |
| 1930 | 906 | 324 | 55.67% |
| 1920 | 582 | 89 | 18.05% |
| 1910 | 493 | -113 | -18.65% |
| 1900 | 606 | 339 | 126.97% |
| 1880 | 267 | 0 | 0% |