Monmouth, OR Profile: Facts & Data

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Monmouth, Oregon - Basic Facts

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The City of Monmouth had a population of 11,005 as of July 1, 2021. Monmouth ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Oregon. See peer rankings below.

The primary coordinate point for Monmouth is located at latitude 44.8485 and longitude -123.234 in Polk County. The formal boundaries for the City of Monmouth encompass a land area of 2.24 sq. miles and a water area of 0 sq. miles. Polk County is in the Pacific time zone (GMT -8). The elevation is 203 feet.

The City of Monmouth has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Oregon is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Monmouth is located within Monmouth-Independence Division of Polk County.


Jump to... (On This Page!)
  1. Monmouth 2021 Demographic Data
  2. Growth Rates for Monmouth (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Oregon Research Tools (Easy Tools & Current Data)
  3. Oregon Data Comparison Tool - 2021 Demographics
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Monmouth, OR Data & Demographics (As of July 1, 2021)

POPULATION

Total Population 11,005 (100%)
Population in Households 10,203 (92.7%)
Population in Families 6,642 (60.4%)
Population in Group Quarters1 802 ( 7.3%)
Population Density 5,064
Diversity Index2 55
 
 

INCOME

Median Household Income $42,564
Average Household Income $57,293
% of Income for Mortgage4 34%
Per Capita Income $21,701
Wealth Index5 48
 

HOUSING

Total HU (Housing Units) 4,058 (100%)
Owner Occupied HU 2,117 (52.2%)
Renter Occupied HU 1,738 (42.8%)
Vacant Housing Units 203 ( 5.0%)
Median Home Value $342,044
Average Home Value $354,478
Housing Affordability Index3 69
 

HOUSEHOLDS

Total Households 3,855
Average Household Size 2.65
Family Households 2,061
Average Family Size 3
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.

GROWTH RATE / YEAR

2010-2021 2021-2026
Population 1.28% 1.37%
Households 1.53% 1.43%
Families 1.36% 1.29%
Median Household Income   2.83%
Per Capita Income   3.08%
Owner Occupied HU   1.6%

Monmouth, OR - Peer Comparisons by Rank and Percentile

The table below compares Monmouth to the other 378 incorporated cities, towns and CDPs in Oregon by rank and percentile using July 1, 2021 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 55 86th
Population Density # 17 96th
Median Household Income # 335 12th
Housing Affordability Index # 51 13th
Per Capita Income # 344 9th
Diversity Index # 66 83rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Oregon Census Data Comparison Tool.

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