State
County
Land Area (mi²)
2.2 sq mi
Density (mi²)
4,979.20/sq mi
2020 Growth Rate
1.09%
Growth Since 2010
13.49%
Rank in State
Rank in Country
Monmouth is a city located in Polk County Oregon. With a 2020 population of 10,820, it is the 48th largest city in Oregon and the 2935th largest city in the United States . Monmouth is currently growing at a rate of 1.09% annually and its population has increased by 13.49% since the most recent census, which recorded a population of 9,534 in 2010. Monmouth reached it's highest population of 10,820 in 2021. Spanning over 2 miles, Monmouth has a population density of 4,979 people per square mile.
The average household income in Monmouth is $52,511 with a poverty rate of 27.80%. The median rental costs in recent years comes to $1,014 per month, and the median house value is $225,100. The median age in Monmouth is 23.6 years, 23.5 years for males, and 23.9 years for females.
According to the most recent ACS, the racial composition of Monmouth was:
| Race | Population | Percentage |
|---|---|---|
| White | 8,214 | 79.89% |
| Two or More Races | 587 | 5.71% |
| Some Other Race | 552 | 5.37% |
| Asian | 442 | 4.30% |
| Black or African American | 333 | 3.24% |
| American Indian and Alaska Native | 81 | 0.79% |
| Native Hawaiian and Other Pacific Islander | 73 | 0.71% |
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 3,315 | 2.78 | 42.9 |
| Non Family | 1,471 | 1.83 | 17.5 |
| Married | 1,466 | 3.55 | 63.2 |
| Female | 272 | 3.59 | 67.3 |
| Male | 106 | 3.1 | 50.9 |
3.41
Average Family Size
2.78
Average Household Size
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 172 | 3.72% |
| 9th to 12th Grade | 331 | 7.15% |
| High School Graduate | 870 | 18.80% |
| Some College | 963 | 20.81% |
| Associates Degree | 603 | 13.03% |
| Bachelors Degree | 1,114 | 24.08% |
| Graduate Degree | 574 | 12.41% |
| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 3,560 | 3,400 | 1,345 |
| Hispanic | 594 | 301 | 54 |
| Other Race | 329 | 276 | 12 |
| 2+ Races | 162 | 155 | 119 |
| Asian | 124 | 102 | 102 |
| Black | 104 | 76 | 62 |
| Native American | 65 | 65 | |
| Islander | 8 | 8 | 6 |
The highest rate of high school graduation is among native american people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 82.26%.
$30,333
Average Earnings
$38,383
Average Male
$22,712
Average Female
78.09% of Monmouth residents speak only English, while 21.91% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 14.36% of the population.
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 6,492 | 1,534 | 23.63% |
| Asian | 383 | 300 | 78.33% |
| Black | 322 | 249 | 77.33% |
| Hispanic | 1,544 | 217 | 14.05% |
| Multiple | 380 | 197 | 51.84% |
| Other | 544 | 61 | 11.21% |
| Islander | 66 | 53 | 80.30% |
| Native | 78 | 13 | 16.67% |
27.80%
Overall Poverty Rate
27.59%
Male Poverty Rate
28.04%
Female Poverty Rate
The race most likely to be in poverty in Monmouth is Islander, with 80.30% below the poverty level.
The race least likely to be in poverty in Monmouth is Other, with 11.21% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 9.35%. Among those working part-time, it was 40.53%, and for those that did not work, the poverty rate was 31.55%.
34.5%
Overall Marriage Rate
33.2%
Male Marriage Rate
35.9%
Female Marriage Rate
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.
| Name | Veterans | % of Total |
|---|---|---|
| White | 377 | 5.66% |
| Native American | 52 | 80.00% |
| Asian | 9 | 2.65% |
| Hispanic | 5 | 0.43% |
5.02%
Veteran Poverty Rate
28.77%
Veteran Disability Rate
60.5%
Labor Force Participation
57.4%
Employment Rate
5.1%
Unemployment Rate
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
85.97%
Native Born
14.03%
Foreign Born
10.19%
Non Citizen
3.84%
Naturalized
85.97% of Monmouth residents were born in the United States, with 51.90% having been born in Oregon. 10.19% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2021 | 10,820 | 117 | 1.09% |
| 2020 | 10,703 | 117 | 1.11% |
| 2019 | 10,586 | 117 | 1.12% |
| 2018 | 10,469 | 131 | 1.27% |
| 2017 | 10,338 | 194 | 1.91% |
| 2016 | 10,144 | 271 | 2.74% |
| 2015 | 9,873 | 82 | 0.84% |
| 2014 | 9,791 | -21 | -0.21% |
| 2013 | 9,812 | 24 | 0.25% |
| 2012 | 9,788 | 61 | 0.63% |
| 2011 | 9,727 | 179 | 1.87% |
| 2010 | 9,548 | 1,807 | 2.12% |
| 2000 | 7,741 | 1,453 | 2.10% |
| 1990 | 6,288 | 694 | 1.18% |
| 1980 | 5,594 | 357 | 0.66% |
| 1970 | 5,237 | 3,008 | 8.92% |
| 1960 | 2,229 | 273 | 1.32% |
| 1950 | 1,956 | 991 | 7.32% |
| 1940 | 965 | 59 | 0.63% |
| 1930 | 906 | 324 | 4.53% |
| 1920 | 582 | 89 | 1.67% |
| 1910 | 493 | -113 | -2.04% |
| 1900 | 606 | 339 | 4.18% |
| 1880 | 267 | 0.00% |