Monmouth, Oregon

Population, housing costs, incomes, jobs, commuting and climate in Monmouth, compared with Oregon and the U.S. using Census records and their margins of error.

Monmouth city · Incorporated city · Census GEOID 4149550 · Oregon directory

Population · July 1, 2025
11,543 PEP Vintage 2025
Change · 2024 to 2025
-0.8% -94 residents
Household income
$69,170 ACS 2020–2024 · ±$12,700
Home value
$413,200 ACS 2020–2024 · ±$33,382
Monthly gross rent
$1,114 ACS 2020–2024 · ±$48
Median age
27.1 years ACS 2020–2024 · ±1.8
Monmouth, Oregon location in the United States Monmouth, Oregon
Census 2024 simplified state outlines; 2025 Gazetteer internal points. Alaska and Hawaii use separate insets. Approximate locator; city boundaries are not shown. Map sources.

Monmouth is an incorporated city in Polk County, Oregon, part of the Salem, OR metropolitan area. With 11,543 residents on July 1, 2025, it ranks 47th in Oregon and 2,909th nationally among Census places. Its population fell by 94 (0.8%) in the year to July 2025; since April 2020 it has grown 3.7%. Median gross rent in the 2020–2024 survey is $1,114 a month, 27.0% below the Oregon median. Median household income is $69,170, 16.7% below the Oregon median.

What stands out in Monmouth?

Compared with other Oregon places, Monmouth is most distinctive for a younger population, more renters and denser settlement. Each statement below uses reliable estimates only, and survey differences from the state exceed their combined 90% margin of error.

  • Median age: 27.1 years, 13.3 years younger than the Oregon median (40.4 years); lower than 98% of 231 Oregon places with reliable estimates. Only 2 of 231 Oregon places with reliable estimates are lower.
  • Homeownership rate: 47.4%, 16.0 percentage points below the Oregon rate (63.3%); lower than 98% of 231 Oregon places with reliable estimates. Only 4 of 231 Oregon places with reliable estimates are lower.
  • Residents per square mile of land: 5,155; higher than 97% of 240 Oregon places with reliable estimates. It ranks 7th of 240 in Oregon.
  • Change in local jobs since 2019: +40.2%; higher than 96% of 159 Oregon places with reliable estimates. It ranks 6th of 159 in Oregon.
  • People without health insurance: 3.4%, 2.4 percentage points below the Oregon rate (5.9%); lower than 91% of 81 Oregon places with reliable estimates. Only 6 of 81 Oregon places with reliable estimates are lower.

How Monmouth compares with Oregon and the U.S.

City, state and U.S. figures · ACS 2020–2024, LODES 8.4 and PEP Vintage 2025 · position among Oregon places with reliable estimates
Measure Monmouth Oregon U.S. Position in Oregon
Population change since April 2020 PEP Vintage 2025 +3.7% — — higher than 82% of 234 Oregon places
Residents per square mile of land PEP 2025 / Gazetteer 2025 5,155 — — higher than 97% of 240 Oregon places
Median household income B19013 $69,170 ±$12,700 $83,011 $80,734 lower than 51% of 217 Oregon places
Median home value B25077 $413,200 ±$33,382 $477,600 $332,700 higher than 64% of 226 Oregon places
Median real estate taxes paid B25103 $3,731 ±$144 $3,876 $3,119 higher than 79% of 229 Oregon places
Median gross rent B25064 $1,114 ±$48 $1,525 $1,413 lower than 61% of 193 Oregon places
Renters paying 30%+ of income on rent B25070 47.5% ±11.3 pp 52.5% 51.1% lower than 74% of 120 Oregon places
Homeownership rate B25003 47.4% ±5.2 pp 63.3% 65.2% lower than 98% of 231 Oregon places
Median age B01002 27.1 years ±1.8 40.4 years 38.9 years lower than 98% of 231 Oregon places
Adults 25+ with a bachelor’s degree or higher B15003 27.3% ±5.1 pp 36.8% 35.7% higher than 58% of 178 Oregon places
Poverty rate B17001 16.1% ±5.2 pp 11.9% 12.5% higher than 64% of 119 Oregon places
People without health insurance B27010 3.4% ±1.3 pp 5.9% 8.4% lower than 91% of 81 Oregon places
Households with a broadband subscription B28002 90.9% ±3.7 pp 92.4% 91.0% lower than 51% of 228 Oregon places
Unemployment rate (civilian labor force) B23025 7.1% ±2.9 pp 5.4% 5.2% higher than 76% of 53 Oregon places
Foreign-born residents B05002 6.3% ±2.2 pp 9.8% 14.1% lower than 70% of 82 Oregon places
Jobs located in the place per 100 residents LODES 8.4 / PEP 21.8 — — lower than 73% of 182 Oregon places
Change in local jobs since 2019 LODES 8.4 +40.2% — — higher than 96% of 159 Oregon places
Workers who work from home B08301 10.6% ±3.6 pp 19.0% 15.1% lower than 73% of 102 Oregon places
Commutes of 45 minutes or longer B08303 14.6% ±6.6 pp 11.6% 16.5% lower than 51% of 108 Oregon places
Households without a vehicle B08201 7.2% ±2.9 pp 7.1% 8.4% lower than 52% of 56 Oregon places

Positions compare Monmouth with Oregon places in this directory whose estimate has a coefficient of variation of 30% or less (survey measures) or a published PEP value. The marker runs from the lowest value (left) to the highest (right); it is a description, not a score or a recommendation.

How many people live in Monmouth?

The latest official estimate is 11,543 residents on July 1, 2025. It ranks 2,909th by population nationally and 47th in Oregon among this directory’s PEP places. Population changed by 94 residents between the 2024 and 2025 estimates. These are annual estimates, not census enumerations.

Monmouth population estimates, 2020 through 2025, Census Vintage 2025. Vertical range 10,588 to 11,986; axis does not start at zero. Residents · axis does not start at zero 11,986 10,588 2020 2021 2022 2023 2024 2025
Annual July 1 estimates, all from Vintage 2025. Revised April 1, 2020 estimate base: 11,129; the base is separate from July 2020.
Population history · PEP Vintage 2025
Reference date Population Change from previous estimate
July 1, 2020 11,145 Separate from April 2020 base
July 1, 2021 11,257 +112
July 1, 2022 11,539 +282
July 1, 2023 11,581 +42
July 1, 2024 11,637 +56
July 1, 2025 11,543 -94

From the revised April 2020 base to July 2025, the change is +414 residents (3.7%). This is a within-vintage comparison. Boundary adjustments can affect both the estimates and their interpretation.

Download this population chart (SVG) · Official population release

Where are the boundaries?

Entity and stable identifier
Monmouth city, Oregon · Incorporated city · 4149550
Counties or equivalents · 2025 boundaries
Polk County
Metropolitan or micropolitan context · July 2023 delineations
Salem, OR — Metropolitan Statistical Area County associations use Census PEP county place parts. Each county is matched by FIPS code to the official CBSA list; a city can span several counties or statistical areas. A missing association can reflect an area outside a CBSA or changed county codes between vintages. City figures on this page remain place-level statistics.
Land area
2.2 square miles · 2025 Gazetteer
Water area
0.1 square miles · 2025 Gazetteer
Approximate population density
5,155 residents per square mile of land
Internal point
44.851316°, -123.228603° · Census geographic reference point

Density divides the July 2025 estimate by 2025 Gazetteer land area, so it is approximate. The internal point is a locator, not an address. Census place profile reference .

Income and poverty

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe City estimate ± MOE State estimate ± MOE U.S. estimate ± MOE
Median household income Households · USD/year $69,170 ±$12,700 $83,011 ±$573 $80,734 ±$166
Per-capita income Total population · USD/year $29,746 ±$3,373 $45,612 ±$309 $44,673 ±$122
Population with poverty status determined · B17001 · ACS 2020–2024 People with poverty status determined: 10,041
Category Count ± MOE Share ± MOE (pp)
Below the poverty level 1,614 ±526 16.1% ±5.2 pp

Household income combines the incomes of everyone in a household; per-capita income divides all income by every resident. The poverty rate is 16.1% (±5.2 percentage points) under the official Census definition.

Home values, rent and tenure

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe City estimate ± MOE State estimate ± MOE U.S. estimate ± MOE
Median owner-occupied home value Owner-occupied housing units · USD $413,200 ±$33,382 $477,600 ±$1,400 $332,700 ±$236
Median gross rent Renter-occupied units paying cash rent · USD/month $1,114 ±$48 $1,525 ±$10 $1,413 ±$2
Occupied housing units by tenure · B25003 · ACS 2020–2024 Occupied housing units: 3,621
Category Count ± MOE Share ± MOE (pp)
Owner occupied 1,715 ±228 47.4% ±5.2 pp
Renter occupied 1,906 ±277 52.6% ±6.5 pp

Owner-occupied units make up 47.4% of occupied housing. Gross rent includes estimated tenant-paid utilities and home values are owners’ own estimates; both cover 2020–2024 leases and homes rather than current listings. The median home value is 6.0 times the median household income.

See housing units, occupancy, rent burden and homeowner costs .

Monthly rent by bedroom count

Median monthly gross rent by bedrooms · ACS 2020–2024 · 2024 dollars
Bedrooms Monthly gross rent 90% margin of error Precision
No bedroom (studio) $777 ±$55 Estimate with MOE
1 bedroom $872 ±$98 Estimate with MOE
2 bedrooms $1,141 ±$39 Estimate with MOE
3 bedrooms $1,482 ±$317 Estimate with MOE
4 bedrooms $1,792 ±$896 Estimate with MOE
5 or more bedrooms Unavailable Unavailable Unavailable

Census table B25031 describes renter-occupied units paying cash rent within this exact place geography. Gross rent includes contract rent and estimated tenant-paid utilities. These survey medians include existing leases across 2020–2024; they are not current apartment listings. Missing categories stay unavailable, and open-ended medians remain ranges. Small bedroom categories can have large margins of error. Download source values and provenance .

Employment among residents

Labor-force participation · B23025 · ACS 2020–2024 Population age 16 and older: 9,431
Category Count ± MOE Share ± MOE (pp)
In the labor force 6,221 ±473 66.0% ±4.5 pp
Not in the labor force 3,210 ±333 34.0% ±3.3 pp
Civilian labor-force status · B23025 · ACS 2020–2024 Civilian labor force: 6,221
Category Count ± MOE Share ± MOE (pp)
Civilian employed 5,779 ±483 92.9% ±3.2 pp
Civilian unemployed 442 ±186 7.1% ±2.9 pp

These estimates describe residents of Monmouth wherever they work; jobs at workplaces inside the city appear under jobs located in Monmouth. They are 2020–2024 averages, not a current monthly unemployment rate.

Which industries employ residents?

Education, health care and social assistance is the largest of the published broad industry groups among employed residents: 35.8% (2,067 people; ±4.6 percentage points). The estimate covers residents’ industries wherever they work, rather than employers located inside the place.

Industry of employed residents · C24030 · ACS 2020–2024 Civilian employed population age 16 and older: 5,779
Category Count ± MOE Share ± MOE (pp)
Agriculture, forestry, fishing, hunting and mining 195 ±134 · low precision 3.4% ±2.3 pp · low precision
Construction 231 ±108 4.0% ±1.8 pp
Manufacturing 289 ±141 5.0% ±2.4 pp
Wholesale trade 16 ±33 · low precision 0.3% ±0.6 pp · low precision
Retail trade 1,241 ±364 21.5% ±6.0 pp
Transportation, warehousing and utilities 107 ±83 · low precision 1.9% ±1.4 pp · low precision
Information 86 ±73 · low precision 1.5% ±1.3 pp · low precision
Finance, insurance, real estate, rental and leasing 87 ±67 · low precision 1.5% ±1.1 pp · low precision
Professional, scientific, management, administrative and waste services 164 ±102 · low precision 2.8% ±1.7 pp · low precision
Education, health care and social assistance 2,067 ±319 35.8% ±4.6 pp
Arts, entertainment, recreation, accommodation and food services 691 ±216 12.0% ±3.6 pp
Other services, except public administration 206 ±107 · low precision 3.6% ±1.8 pp · low precision
Public administration 399 ±169 6.9% ±2.9 pp

Occupations among employed residents

Broad occupation groups · C24010 · ACS 2020–2024 Civilian employed population age 16 and older: 5,779
Category Count ± MOE Share ± MOE (pp)
Management, business, science and arts 2,027 ±326 35.1% ±4.8 pp
Service occupations 1,546 ±296 26.8% ±4.6 pp
Sales and office 1,085 ±261 18.8% ±4.2 pp
Natural resources, construction and maintenance 377 ±170 6.5% ±2.9 pp
Production, transportation and material moving 744 ±261 12.9% ±4.4 pp
Selected detailed occupation groups · C24010 · ACS 2020–2024 Civilian employed population age 16 and older: 5,779
Category Count ± MOE Share ± MOE (pp)
Management occupations 327 ±142 5.7% ±2.4 pp
Computer and mathematical occupations 178 ±117 · low precision 3.1% ±2.0 pp · low precision
Educational instruction and library occupations 629 ±184 10.9% ±3.1 pp
Health practitioners and technical occupations 339 ±186 · low precision 5.9% ±3.2 pp · low precision
Sales and related occupations 544 ±201 9.4% ±3.4 pp
Transportation occupations 248 ±107 4.3% ±1.8 pp

The detailed groups are subsets of the broad groups and should not be added to them.

How residents get to work

Means of transportation to work · B08301 · ACS 2020–2024 Workers age 16 and older: 5,530
Category Count ± MOE Share ± MOE (pp)
Drove alone 3,856 ±505 69.7% ±6.9 pp
Carpooled 436 ±156 7.9% ±2.7 pp
Public transportation 67 ±61 · low precision 1.2% ±1.1 pp · low precision
Taxi or ride-hailing 0 ±21 · low precision 0.0% ±0.4 pp · low precision
Motorcycle 27 ±31 · low precision 0.5% ±0.6 pp · low precision
Bicycle 81 ±66 · low precision 1.5% ±1.2 pp · low precision
Walked 428 ±187 7.7% ±3.3 pp
Other means 47 ±43 · low precision 0.8% ±0.8 pp · low precision
Worked from home 588 ±207 10.6% ±3.6 pp
Travel time to work · B08303 · ACS 2020–2024 Workers age 16+ who did not work from home: 4,942
Category Count ± MOE Share ± MOE (pp)
Under 15 minutes 1,851 ±449 37.5% ±8.3 pp
15–29 minutes 963 ±261 19.5% ±4.9 pp
30–44 minutes 1,405 ±353 28.4% ±6.6 pp
45–59 minutes 402 ±292 · low precision 8.1% ±5.9 pp · low precision
60 minutes or longer 321 ±160 6.5% ±3.2 pp
Household vehicle availability · B08201 · ACS 2020–2024 Households: 3,621
Category Count ± MOE Share ± MOE (pp)
No vehicle available 261 ±107 7.2% ±2.9 pp

Travel times cover workers who did not work from home. Vehicle availability is counted per household, not per driver.

Households and residents

Median age is 27.1 years (±1.8). The demographic profile covers age groups, race and Hispanic origin, household types, nativity, languages, education and moves, each compared with Oregon and the U.S.

Read Monmouth demographics →

How many jobs are located in Monmouth?

Employers in Monmouth reported 2,523 jobs in 2023, +40.2% compared with 2019 (1,799 jobs). That is 21.8 jobs for every 100 residents in the July 2023 population estimate, so most employed residents are likely to work elsewhere. These are jobs at workplaces inside the city limits, wherever the workers live, unlike resident employment figures.

Jobs located in Monmouth by industry (NAICS sector) · 2023 · LODES 8.4
Industry Jobs Share of local jobs Oregon share
Educational services 946 37.5% 7.7%
Health care and social assistance 467 18.5% 15.7%
Accommodation and food services 334 13.2% 8.8%
Management of companies and enterprises 205 8.1% 2.7%
Retail trade 168 6.7% 10.6%
Public administration 74 2.9% 4.2%
Other services, except public administration 51 2.0% 3.5%
Professional, scientific and technical services 48 1.9% 6.0%
Construction 46 1.8% 6.3%
Administrative, support and waste management services 41 1.6% 5.4%
Arts, entertainment and recreation 34 1.3% 1.7%
Information 32 1.3% 2.2%
Real estate and rental and leasing 32 1.3% 1.6%
Finance and insurance 29 1.1% 2.8%
Agriculture, forestry, fishing and hunting 10 0.4% 2.6%
Wholesale trade 4 0.2% 4.1%
Manufacturing 2 0.1% 9.6%
Monthly earnings and worker age · jobs located in Monmouth · 2023
Group Jobs Share Oregon share
$1,250 a month or less 453 18.0% 15.3%
$1,251 to $3,333 a month 733 29.1% 24.7%
More than $3,333 a month 1,337 53.0% 60.0%
Age 29 or younger 687 27.2% 20.8%
Age 30 to 54 1,291 51.2% 55.1%
Age 55 or older 545 21.6% 24.1%

Educational services is the largest sector for jobs located in Monmouth (37.5% of local jobs, compared with 7.7% statewide). Earnings bands describe what each job pays per month, not household income, and a worker can hold more than one job.

Source: Census LEHD Origin-Destination Employment Statistics (LODES) 8.4, workplace area characteristics, all jobs, second-quarter reference date. Census blocks are summed to 2024 place boundaries. Includes private, state and local government and federal civilian jobs; excludes self-employment, military and informal work. Counts include confidentiality noise and are less precise for small places.

Nearby station climate normals

CORVALLIS STATE UNIV, OR (NOAA station USC00351862) is approximately 24.3 km from this place’s Census internal point. The table describes that station’s 1991–2020 climate normals, using NOAA’s corrected version 1.0.1. It is historical station context, rather than a forecast or an average across the city.

CORVALLIS STATE UNIV monthly average daily high and low temperature, 1991–2020 NOAA normals. Solid line: high; dashed line: low. Vertical scale 30 to 90 degrees Fahrenheit. Temperature (°F) 90 30 Jan Mar May Jul Sep Nov
Average daily high: solid line. Average daily low: dashed line. NOAA station normals, 1991–2020; the table gives all monthly values.
CORVALLIS STATE UNIV · 1991–2020 monthly normals
Month Average daily high (°F) Average daily low (°F) Precipitation (inches)
January 47.4 34.3 6.46
February 51.3 34.8 4.80
March 56.1 37.0 4.95
April 60.9 39.5 3.29
May 68.1 44.5 2.31
June 73.8 48.6 1.34
July 82.9 52.1 0.34
August 83.7 51.4 0.39
September 77.6 48.2 1.49
October 65.0 42.0 3.50
November 53.2 37.6 6.46
December 46.7 33.9 7.71

Station location: 44.6342°, -123.19°; elevation 68.6 meters. We select the nearest station within 25 km with all 12 months of high/low temperature and precipitation marked “S” (standard) by NOAA. Standard normals meet NOAA’s data-availability rules and can include estimated missing months. Distance is a straight-line great-circle calculation from the Census internal point. Coastal exposure, elevation and urban conditions can differ between the station and an address. NOAA normals and definitions · Original station CSV · Retained station data, flags and matching details .

Check a specific address before moving

City averages help compare places. A particular home’s school assignment, transit service and flood-map coverage need checks at the address.

  • FEMA Flood Map Service Center — search the address, read the effective map and its date, and check any map changes. An unmapped location does not establish an absence of flood risk.
  • NCES public school district directory — find district contact information, then use the district’s official address locator or enrollment office to confirm school assignment. A city name or district boundary alone does not assign a school.
  • FCC National Broadband Map — check reported service at the exact location, then confirm availability and terms with the provider.
  • Check the official transit operator’s route map and timetable for the address and your actual travel hours; the citywide commuting shares above do not measure service on a particular street.

Sources and data notes

Population: Census PEP Vintage 2025, published May 14, 2026. Survey measures: ACS 2020–2024 five-year estimates, published January 29, 2026, dollar figures in 2024 dollars. Geography: Census 2025 Gazetteer, with simplified 2024 state outlines for the locator. Statistical estimates and derived values use the same retained records in profiles, comparison, filters and downloads.

Climate uses NOAA 1991–2020 station normals (v1.0.1); jobs located in the city use LEHD LODES 8.4. Crime, school assignments and hazard scores are not inferred from these datasets, and missing values are never treated as zero. Inspect original sources, read calculation details, download this place’s source observations , or submit a correction.

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