Monmouth is a city located in Oregon. With a 2020 population of 10,895, it is the 50th largest city in Oregon and the 2915th largest city in the United States. Monmouth is currently growing at a rate of 1.83% annually and its population has increased by 14.28% since the most recent census, which recorded a population of 9,534 in 2010. Spanning over 2 miles, Monmouth has a population density of 5,014 people per square mile.
The average household income in Monmouth is $48,213 with a poverty rate of 33.76%. The median rental costs in recent years comes to $860 per month, and the median house value is $215,600. The median age in Monmouth is 23.4 years, 23.7 years for males, and 23 years for females. For every 100 females there are 96.5 males.