Monmouth ZIP Code List — Polk County, OR

There is one unique ZIP code in Monmouth, Oregon and it is 97361. Area code: 503/971.

ZIP codes

132.94

sq mi land

0.12

sq mi water

503/971

area code

Monmouth, OR ZIP code map

About Monmouth, OR

Monmouth, Oregon, is a charming city located in Polk County. Known for its friendly community and beautiful scenery, Monmouth offers a quaint small-town atmosphere. It serves as a gateway to exploring the diverse natural landscapes and cultural experiences of the Willamette Valley.

Location & geography

Monmouth is situated in the northwestern part of the state of Oregon. It is approximately 10 miles west of Salem, 30 miles south of Portland, and close to other communities such as Independence and Dallas. The city encompasses a total land area of 132.94 square miles, with a small water area of 0.12 square miles, offering a mix of urban development and picturesque natural surroundings.

Community & economy

The community in Monmouth is characterized by its welcoming spirit and strong sense of belonging. It boasts a mix of agriculture, retail, and education industries, including being home to Western Oregon University. Daily life in Monmouth features local festivals, community events, and a focus on outdoor activities, all contributing to a vibrant local culture.

Transportation

Access to Monmouth is facilitated by several major highways, including Oregon Route 99W, which runs nearby. The nearest airport is the Salem Municipal Airport, located approximately 12 miles to the east. Public transit options, including local bus services, provide connections to nearby cities and towns.

History

Monmouth was established in the mid-19th century and has since evolved into a hub for education and agriculture. The city is home to Western Oregon University, which has played a significant role in shaping the local economic landscape and community development. Throughout its history, Monmouth has experienced various events that have contributed to its rich cultural heritage.

Did you know?

One surprising fact about Monmouth is that it is often associated with the history of education in Oregon, primarily due to the presence of Western Oregon University. Additionally, the city hosts the annual Monmouth Independence Day Celebration, drawing visitors from neighboring communities.

ZIP codes for Monmouth, OR (1)

ZIP code	City	County	Map
97361	Monmouth	Polk	View map

Demographics & statistics

13,557

Population

27.7

Median age

$64,490

Median household income

$28,353

Per capita income

$373,000

Median home value

$1,124

Median monthly rent

52.7%

Home ownership

18.7%

Poverty rate

4.1%

Unemployment

2,661

Housing units

30.2%

Bachelor's or higher

Age distribution

Male Female

294

Under 5

300

569

5–9

579

321

10–14

326

746

15–19

759

1,043

20–24

1,061

1,024

25–34

1,042

558

35–44

568

588

45–54

599

321

55–59

326

336

60–64

342

507

65–74

515

292

75–84

298

120

85+

123

← Male

Female →

Age summary

Group	Count	%
Under 18	2,857	21.1%
18 and over	10,700	78.9%
65 and over	1,855	13.7%
Median age	27.7 years

Race & ethnicity

White 73.6%

Two or more races 11.7%

Hispanic or Latino 6.6%

Other race 2.8%

Asian 1.8%

American Indian / Alaska Native 1.8%

Black or African American 0.9%

Native Hawaiian / Pacific Islander 0.7%

Group	Count	%
White	10,682	73.6%
Two or more races	1,702	11.7%
Hispanic or Latino	957	6.6%
Other race	406	2.8%
Asian	268	1.8%
American Indian / Alaska Native	268	1.8%
Black or African American	129	0.9%
Native Hawaiian / Pacific Islander	102	0.7%

Household income

Under $10k 5.0%

$10k–$15k 7.5%

$15k–$25k 11.0%

$25k–$35k 5.5%

$35k–$50k 9.5%

$50k–$75k 17.2%

$75k–$100k 13.3%

$100k–$150k 16.4%

$150k–$200k 8.5%

$200k+ 6.0%

Range	% of households
Under $10k	5.0%
$10k–$15k	7.5%
$15k–$25k	11.0%
$25k–$35k	5.5%
$35k–$50k	9.5%
$50k–$75k	17.2%
$75k–$100k	13.3%
$100k–$150k	16.4%
$150k–$200k	8.5%
$200k+	6.0%
Median income	$64,490

Housing

Home values

Under $50k 5.8%

$100k–$150k 1.9%

$150k–$200k 2.2%

$200k–$300k 17.2%

$300k–$500k 47.6%

$500k–$1M 22.9%

$1M+ 2.5%

Housing overview

Metric	Value
Median home value	$373,000
Median rent / month	$1,124
Owner occupied	52.7%
Renter occupied	47.3%
Vacant	8.9%
Single-family detached	60.0%
Large apartment buildings	4.1%
Mobile homes	5.7%
Median rooms	5.5
Avg household size (owned)	2.95

Year built

Era	%
2020 or later	0.0%
2010–2019	13.0%
2000–2009	20.8%
1990–1999	17.1%
1980–1989	7.7%
1970–1979	21.2%
1960–1969	9.7%
1950–1959	3.5%
1940–1949	2.6%
1939 or earlier	4.4%

Bedrooms

Size	% of units
No bedroom (studio)	1.2%
1 bedroom	11.9%
2 bedrooms	22.8%
3 bedrooms	46.4%
4 bedrooms	13.1%
5+ bedrooms	4.7%

Vehicles per household

Vehicles	% of households
No vehicle	5.1%
1 vehicle	22.6%
2 vehicles	40.2%
3 or more	32.2%

Heating fuel

Fuel type	%
Utility gas	24.5%
Electricity	63.3%
Propane / LP gas	2.8%
Fuel oil	1.2%
Wood	6.7%

Households & families

Household type	Count	%
Married-couple family	2,199	51.6%
Cohabiting couple	321	7.5%
Male householder, no spouse	545	12.8%
Female householder, no spouse	1,194	28.0%
Households with children under 18	1,292	30.3%
Households with seniors (65+)	1,186	27.8%
Average household size	2.90

Marital status

Status	Male	Female
Never married	43.7%	40.8%
Married	43.7%	42.0%
Separated	1.8%	1.8%
Widowed	1.0%	2.6%
Divorced	9.8%	12.9%

Education

Less than 9th grade 2.4%

Some HS, no diploma 3.5%

HS graduate 22.3%

Some college, no degree 26.7%

Associate's degree 14.9%

Bachelor's degree 18.1%

Graduate / professional 12.1%

Metric	%
HS diploma or higher	94.1%
Bachelor's or higher	30.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	41	0.9%
Kindergarten	189	3.9%
Elementary school	1,333	27.6%
High school	636	13.2%
College / grad school	2,624	54.4%

Employment

Industry of employment

Education & healthcare 37.5%

Retail trade 17.9%

Arts, food & hospitality 8.0%

Construction 6.4%

Professional & management 5.8%

Manufacturing 4.9%

Other services 4.2%

Transportation & utilities 3.9%

Agriculture & mining 3.8%

Public administration 3.5%

Finance & real estate 3.1%

Wholesale trade 0.8%

Information 0.5%

Occupation

Category	%
Management, business & arts	33.5%
Service	22.6%
Sales & office	23.0%
Natural resources & construction	5.7%
Production & transportation	15.2%

Employment type

Type	%
Private sector	70.9%
Government	25.5%
Self-employed	3.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	71.6%
Carpool	6.9%
Public transit	0.5%
Walk	8.2%
Other means	2.1%
Avg commute (minutes)	25.3

Poverty

All people 18.7%

Under 18 years 20.6%

18 and over 18.2%

Married-couple families 2.4%

Female-led households 26.0%

Income support

Source	% of households
Social Security	33.5%
Retirement income	26.4%
Supplemental Security	6.0%
Cash public assistance	7.3%
Food stamps / SNAP	22.4%

Health indicators

Condition	%
High blood pressure	25.6%
High cholesterol	24.7%
Heart disease	5.2%
Stroke	2.6%
Asthma	11.9%
Arthritis	19.4%
Kidney disease	2.6%
Pulmonary disease	6.1%
Cancer	5.0%

Behavior / access	%
Binge drinking	18.9%
No physical activity	18.9%
Less than 7 hrs sleep	30.5%
Fair or poor health	14.4%
Poor mental health	18.3%
Poor physical health	10.0%
No health insurance	12.2%
Visited doctor (checkup)	70.9%
Visited dentist	61.8%
Cholesterol screening	82.5%
Teeth loss	15.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	875	8.2%

Disability	%
Any disability	14.9%
Under 18	4.1%
18–64 years	14.2%
65 and over	35.4%

Health insurance coverage

Type	%
Private insurance	66.5%
Public insurance	39.6%
Uninsured under 19	6.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	12,963	95.6%
Spanish	413	3.2%
Other Indo-European	369	2.8%
Asian & Pacific Islander	17	0.1%
Other languages	27	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	12,652	93.3%
Born in same state	12,519	92.3%
Born in different state	7,337	54.1%
Foreign born	133	1.0%
Naturalized citizen	905	6.7%
Not a US citizen	372	41.1%

Ancestry

Ancestry	Count	%
French	2,229	16.4%
Italian	1,199	8.8%
Arab	470	3.5%
Polish	463	3.4%
English	150	1.1%

Ancestry	Count	%
German	85	0.6%
Dutch	39	0.3%
Norwegian	36	0.3%
Irish	34	0.3%

Technology access

Metric	% of households
Computer access	31.4%
Internet access	94.3%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for Monmouth, OR?

Monmouth, OR has one ZIP code: 97361.

What is the main ZIP code for Monmouth, OR?

The primary ZIP code for Monmouth, OR is 97361. The city uses area code 503 or 971 for phone service.

What county is Monmouth, OR in?

Monmouth is located in Polk County, Oregon.

How many ZIP codes are in Monmouth, OR?

Monmouth, OR has 1 ZIP code.

What ZIP code covers the Western Oregon University campus area in Monmouth?

Western Oregon University, located in downtown Monmouth, is served by ZIP code 97361, which encompasses the entire city and its educational institutions.

What is the ZIP code for the downtown Monmouth area along Main Street?

Downtown Monmouth, including the Main Street business district and civic center, uses ZIP code 97361, which is the sole ZIP code serving the city.