Monmouth
City in Polk County, Oregon

Monmouth is a city in Polk County, Oregon, with 11,110 residents (2020 Census). It sits at 213 ft (65 m) above sea level. The nearest town is Independence, 1.6 miles E.
- 11,110residents (2020 Census)
- 213 ftelevation · 65 m
- 2.2 sq miland area · 5.8 km²
- 4,963 / sq mipopulation density
- 97351ZIP code
About Monmouth
Monmouth () is a city of Polk County in the U.S. state of Oregon. It was named after Monmouth, Illinois, the origin of its earliest settlers. The population is 11,110 as of the 2020 Census; and Monmouth is part of the Salem Metropolitan Statistical Area. The city is home to Western Oregon University. The city’s first public library, Monmouth Public Library, opened in 1934.
Text: Wikipedia · CC BY-SA 4.0
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Living in Monmouth
- Median household income
- $69,170
- Median home value
- $413,200
- Median rent
- $1,114/mo
- Median age
- 27.1
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Map of Monmouth
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Open in Google Maps ›Monmouth, OR population
Monmouth had 11,110 residents in the 2020 Census.
| 2020 Census | 11,110 |
|---|---|
| Density | 4,963 per sq mi (1,916 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Monmouth at a glance
| State | Oregon (OR) |
|---|---|
| County | Polk County |
| Type | City |
| Population | 11,110 (2020) |
| Land area | 2.24 sq mi (5.8 km²) |
| Water area | 0.08 sq mi (0.21 km²) |
| Elevation | 213 ft (65 m) |
| Coordinates | 44.8513° N, 123.2286° W |
| ZIP code | 97351 |
| Official website | ci.monmouth.or.us |
| Census code (GEOID) | 4149550 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Monmouth
- Independence1.6 mi E
- Rickreall5.6 mi N
- Dallas6.4 mi NW
- Eola7.6 mi NE
- Falls City10.3 mi W
- Salem11.2 mi NE
- Adair Village12.6 mi S
- Turner13.6 mi E
- Four Corners13.6 mi NE
- Millersburg14.2 mi SE
- Jefferson14.3 mi SE
- Kings Valley14.4 mi SW
Straight-line distance between town centers.
Frequently asked questions about Monmouth
What county is Monmouth in?
Monmouth is in Polk County, Oregon.
What is the population of Monmouth, OR?
11,110 people lived in Monmouth at the 2020 Census.
What is the ZIP code of Monmouth, OR?
The ZIP code of Monmouth is 97351.
What is the elevation of Monmouth?
213 feet (65 m) above sea level.
What towns are near Monmouth?
Independence (1.6 mi), Rickreall (5.6 mi), Dallas (6.4 mi), Eola (7.6 mi), Falls City (10.3 mi).
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