Monmouth city, Oregon Demographics & Population 2026

Name: Monmouth city, Oregon Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

As of 2026, Monmouth city, Oregon has a total population of 11,176, the 56th largest city in Oregon, with a median household income of $66,858, which is 17% lower than the state average. The poverty rate is 15.6%.

Monmouth city Quick Facts

Population 11,176

Median Household Income $66,858

Median Home Value $380,500

Poverty Rate 15.6%

Unemployment Rate 6.7%

Median Age 26.2 years

Homeownership Rate 45.5%

Affordability Ratio 5.7x

Bachelor's Degree or Higher 27.9%

High School Graduation Rate 94.6%

Diversity Index 41/100

Population 11,176 56th of 419

Median Income $66,858 average

Poverty Rate 15.6% 25% higher national

Median Home Value $380,500 average

How Monmouth city Compares

Median Household Income

Monmouth city

$66,858

$80,426

National

$78,538

Median Home Value

Monmouth city

$380,500

$454,200

National

$303,400

Economy & Housing

Household Income Distribution

Under $25K 19.9%

$25K-$50K 17.5%

$50K-$100K 32.9%

$100K+ 29.8%

Employment

6.7% Unemployment Rate State: 5.4% | National: 5.2%

63.3% Labor Force Participation

Housing Overview

Owner 45.5%

Renter 54.5%

Affordability Index Expensive

5.7x home value to income ratio

People & Demographics

Age Distribution

Under 18

20.8%

18-34

40.7%

35-54

18.2%

55-74

13.6%

75+

6.7%

Race & Ethnicity

Diversity Index

Moderate Diversity

Moderate diversity with one or two groups making up the majority.

State average: 45 | National average: 60

Education

Educational Attainment (Adults 25+)

Monmouth city Rankings in Oregon

#56 Population of 419

#214 Median Income of 419

#143 Education of 419

#158 Home Value of 419

Explore Oregon Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Cities Similar to Monmouth city

These cities in the same state have comparable population and economic profiles.

City	Population	Median Income	Home Value	Bachelor's+	Poverty
White City CDP	10,913	$65,370	$273,700	11.1%	21.4%
Prineville city	11,187	$72,058	$364,600	18.2%	14.8%
Cottage Grove city	10,630	$64,133	$318,800	20.7%	14.3%
Fairview city	10,627	$71,024	$410,400	23.5%	14.4%
Astoria city	10,162	$70,043	$422,400	29.5%	14.2%

Population Overview

Monmouth city is a small city located in Oregon. The total population is 11,176. It ranks as the 56th most populous out of 419 cities and towns in Oregon.

Age Demographics

The median age in Monmouth city is 26.2 years. This is 35% lower than the state median of 40.1 years.

Economy, Income & Housing

The median household income in Monmouth city is $66,858. This is 17% lower than the state median of $80,426. Compared to the national median of $78,538, household income here is 15% lower. The poverty rate stands at 15.6%. This is 31% higher than the state poverty rate of 11.9%. The unemployment rate is 6.7%. This is 24% higher than the state rate of 5.4%. The median home value is $380,500. Housing costs are 16% lower than the state median of $454,200. The home-value-to-income ratio is 5.7x. 45.5% of occupied housing units are owner-occupied. This homeownership rate is 28% lower than the state average of 63.4%.

Race & Ethnicity

The largest racial or ethnic group in Monmouth city is White (non-Hispanic), making up 74.3% of the population. Hispanic or Latino residents account for 16.4%. The Black or African American population (0.8%) is well below the state average of 1.8%. The Asian population (1.7%) is well below the state average of 4.4%.

Education

27.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 23% lower than the state rate of 36.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.6%.

Data Sources & Methodology

All demographic data for Monmouth city, Oregon is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Oregon state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 419 Census-designated places in Oregon. For official data, visit data.census.gov.

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Frequently Asked Questions

What is the population of Monmouth city, Oregon?

Monmouth city, Oregon has a population of 11,176 according to the most recent U.S. Census ACS 5-Year Estimates.

What is the median household income in Monmouth city, OR?

The median household income in Monmouth city is $66,858, which is 15% lower the national median of $78,538.

What is the poverty rate in Monmouth city, OR?

The poverty rate in Monmouth city is 15.6%. This means approximately 1,537 residents live below the federal poverty line.

What is the racial makeup of Monmouth city, Oregon?

Monmouth city's population is 74.3% White, 0.8% Black, 16.4% Hispanic/Latino, and 1.7% Asian.

What is the median home value in Monmouth city, OR?

The median home value in Monmouth city is $380,500. The home-value-to-income ratio is 5.7x.

How educated is Monmouth city, Oregon?

27.9% of adults (25+) in Monmouth city hold a bachelor's degree or higher, and 10.7% hold a graduate or professional degree.