Lake Oswego ZIP Code List — Clackamas County, OR

There are 2 unique ZIP codes in Lake Oswego, Oregon. Area code: 503.

ZIP codes

13.57

sq mi land

0.86

sq mi water

503

area code

Lake Oswego, OR ZIP code map

About Lake Oswego, OR

Lake Oswego, Oregon, is a picturesque suburban city located in Clackamas County. Known for its scenic views and affluent communities, Lake Oswego offers a blend of natural beauty and modern amenities. Residents enjoy a high quality of life, thanks to the city's recreational opportunities and robust local economy.

Location & geography

Lake Oswego is conveniently situated just south of Portland, approximately 8 miles away, making it an accessible retreat from city life. The city encompasses a land area of 13.57 square miles and is complemented by a water area of 0.86 square miles, featuring the lovely Oswego Lake at its center. The terrain is characterized by rolling hills and lush green spaces, providing numerous parks and trails for outdoor enthusiasts.

Community & economy

The character of Lake Oswego is marked by its vibrant community life and well-planned neighborhoods. The city hosts several industries, including technology and retail, which contribute to its economic stability. Residents experience a rich daily life filled with cultural events, outdoor activities, and a commitment to maintaining a family-friendly atmosphere.

Transportation

Lake Oswego is accessed by several major roadways, including Interstate 5, which connects the city to the greater Portland metropolitan area. The nearest airport is Portland International Airport, located about 20 miles to the north, providing convenient air travel options. Public transit is available through TriMet, offering bus and light rail services for easy commuting.

History

Lake Oswego was founded in the mid-1800s during the rise of the iron industry, largely driven by its rich natural resources. The city grew significantly throughout the 20th century, evolving into a residential area that attracted many families and individuals who sought a suburban lifestyle. Notable events, such as the establishment of local parks and community programs, have shaped Lake Oswego into the thriving city it is today.

Did you know?

A surprising fact about Lake Oswego is that it holds a unique distinction as one of the few cities in the U.S. that has its own lake. Additionally, the city's commitment to preserving its natural environment has led to numerous conservation initiatives and outdoor recreational programs.

ZIP codes for Lake Oswego, OR (2)

ZIP code	City	County	Map
97034	Lake Oswego	Clackamas	View map
97035	Lake Oswego	Clackamas	View map

Demographics & statistics

47,109

Population

44.8

Median age

$127,405

Median household income

$79,069

Per capita income

$809,100

Median home value

$1,932

Median monthly rent

69.7%

Home ownership

3.9%

Poverty rate

5.8%

Unemployment

14,651

Housing units

71.8%

Bachelor's or higher

Age distribution

Male Female

1,249

Under 5

1,196

1,277

5–9

1,223

1,792

10–14

1,715

1,401

15–19

1,342

867

20–24

830

2,246

25–34

2,150

3,200

35–44

3,063

3,429

45–54

3,282

1,491

55–59

1,428

1,905

60–64

1,824

3,291

65–74

3,150

1,375

75–84

1,317

545

85+

521

← Male

Female →

Age summary

Group	Count	%
Under 18	10,682	22.7%
18 and over	36,427	77.4%
65 and over	10,199	22.0%
Median age	44.8 years

Race & ethnicity

White 75.5%

Asian 9.5%

Two or more races 8.2%

Hispanic or Latino 4%

Other race 1.1%

Black or African American 1%

American Indian / Alaska Native 0.3%

Native Hawaiian / Pacific Islander 0.3%

Group	Count	%
White	37,048	75.5%
Asian	4,677	9.5%
Two or more races	4,032	8.2%
Hispanic or Latino	1,969	4%
Other race	516	1.1%
Black or African American	501	1%
American Indian / Alaska Native	169	0.3%
Native Hawaiian / Pacific Islander	166	0.3%

Household income

Under $10k 2.6%

$10k–$15k 1.4%

$15k–$25k 4.2%

$25k–$35k 3.7%

$35k–$50k 4.7%

$50k–$75k 11.2%

$75k–$100k 9.8%

$100k–$150k 20.2%

$150k–$200k 11.0%

$200k+ 31.4%

Range	% of households
Under $10k	2.6%
$10k–$15k	1.4%
$15k–$25k	4.2%
$25k–$35k	3.7%
$35k–$50k	4.7%
$50k–$75k	11.2%
$75k–$100k	9.8%
$100k–$150k	20.2%
$150k–$200k	11.0%
$200k+	31.4%
Median income	$127,405

Housing

Home values

Under $50k 0.8%

$50k–$100k 0.9%

$100k–$150k 0.9%

$150k–$200k 0.7%

$200k–$300k 4.5%

$300k–$500k 11.5%

$500k–$1M 51.1%

$1M+ 29.7%

Housing overview

Metric	Value
Median home value	$809,100
Median rent / month	$1,932
Owner occupied	69.7%
Renter occupied	30.4%
Vacant	6.3%
Single-family detached	63.5%
Large apartment buildings	11.2%
Mobile homes	0.3%
Median rooms	6.6
Avg household size (owned)	2.59

Year built

Era	%
2020 or later	0.8%
2010–2019	6.3%
2000–2009	8.9%
1990–1999	13.9%
1980–1989	18.6%
1970–1979	23.1%
1960–1969	13.7%
1950–1959	8.2%
1940–1949	2.9%
1939 or earlier	3.8%

Bedrooms

Size	% of units
No bedroom (studio)	2.4%
1 bedroom	8.6%
2 bedrooms	23.0%
3 bedrooms	29.0%
4 bedrooms	28.3%
5+ bedrooms	8.9%

Vehicles per household

Vehicles	% of households
No vehicle	3.4%
1 vehicle	31.6%
2 vehicles	43.9%
3 or more	21.1%

Heating fuel

Fuel type	%
Utility gas	56.9%
Electricity	40.6%
Propane / LP gas	0.6%
Fuel oil	0.5%
Wood	0.6%
Solar	0.4%

Households & families

Household type	Count	%
Married-couple family	11,495	59.7%
Cohabiting couple	932	4.8%
Male householder, no spouse	2,596	13.3%
Female householder, no spouse	4,377	22.3%
Households with children under 18	6,237	32.1%
Households with seniors (65+)	7,049	36.9%
Average household size	2.43

Marital status

Status	Male	Female
Never married	26.7%	17.6%
Married	62.9%	61.4%
Separated	0.8%	0.8%
Widowed	1.7%	7.7%
Divorced	7.9%	12.7%

Education

Less than 9th grade 0.4%

Some HS, no diploma 0.7%

HS graduate 6.9%

Some college, no degree 14.5%

Associate's degree 5.8%

Bachelor's degree 39.7%

Graduate / professional 32.1%

Metric	%
HS diploma or higher	98.9%
Bachelor's or higher	71.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	571	5.2%
Kindergarten	674	5.9%
Elementary school	4,726	42.8%
High school	2,820	25.6%
College / grad school	2,302	20.5%

Employment

Industry of employment

Education & healthcare 25.6%

Professional & management 19.1%

Finance & real estate 10.3%

Manufacturing 8.5%

Retail trade 8.3%

Other services 5.8%

Arts, food & hospitality 4.9%

Construction 4.3%

Wholesale trade 4.0%

Public administration 3.9%

Transportation & utilities 3.1%

Information 2.4%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	68.2%
Service	6.7%
Sales & office	17.1%
Natural resources & construction	2.7%
Production & transportation	5.4%

Employment type

Type	%
Private sector	77.8%
Government	12.8%
Self-employed	8.6%
Unpaid family workers	0.9%

Commute

Method	%
Drive alone	65.5%
Carpool	5.0%
Public transit	1.9%
Walk	1.5%
Other means	1.9%
Avg commute (minutes)	23.4

Poverty

All people 3.9%

Under 18 years 3.2%

18 and over 4.0%

Married-couple families 2.3%

Female-led households 3.9%

Income support

Source	% of households
Social Security	33.4%
Retirement income	27.4%
Supplemental Security	1.7%
Cash public assistance	2.5%
Food stamps / SNAP	3.0%

Health indicators

Condition	%
High blood pressure	30.4%
High cholesterol	31.5%
Heart disease	4.9%
Stroke	2.3%
Asthma	9.1%
Arthritis	21.3%
Kidney disease	2.4%
Pulmonary disease	4.1%
Cancer	7.9%

Behavior / access	%
Binge drinking	15.9%
No physical activity	11.3%
Less than 7 hrs sleep	24.3%
Fair or poor health	8.2%
Poor mental health	11.4%
Poor physical health	7.0%
No health insurance	5.9%
Visited doctor (checkup)	74.0%
Visited dentist	79.1%
Cholesterol screening	93.6%
Teeth loss	6.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,261	6.2%

Disability	%
Any disability	8.9%
Under 18	2.2%
18–64 years	7.0%
65 and over	20.8%

Health insurance coverage

Type	%
Private insurance	83.6%
Public insurance	29.6%
Uninsured under 19	2.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	44,664	95.0%
Spanish	1,247	2.7%
Other Indo-European	80	0.2%
Asian & Pacific Islander	142	0.3%
Other languages	1,008	2.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	41,414	88.4%
Born in same state	40,700	86.9%
Born in different state	17,573	37.5%
Foreign born	714	1.5%
Naturalized citizen	5,695	11.7%
Not a US citizen	2,971	58.8%

Ancestry

Ancestry	Count	%
French	7,446	15.8%
Italian	6,826	14.5%
Arab	1,677	3.6%
Polish	1,553	3.3%
English	743	1.6%

Ancestry	Count	%
Dutch	650	1.4%
German	252	0.5%
Irish	219	0.5%
Norwegian	112	0.2%

Technology access

Metric	% of households
Computer access	41.1%
Internet access	97.8%

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

Frequently asked questions

What ZIP codes does Lake Oswego, OR have?

Lake Oswego, OR has 2 ZIP codes: 97034, 97035. Each ZIP code serves a distinct delivery area within the city and surrounding region.

What is the main ZIP code for Lake Oswego, OR?

The primary ZIP code for Lake Oswego, OR is 97034. The city uses area code 503 for phone service.

What county is Lake Oswego, OR in?

Lake Oswego is located in Clackamas County, Oregon.

How many ZIP codes are in Lake Oswego, OR?

Lake Oswego, OR has 2 ZIP codes.

What ZIP code is the Lake Oswego downtown area and historic Millennium Plaza located in?

Lake Oswego's downtown area, including the iconic Millennium Plaza, is located in ZIP code 97034, which serves the central business district and historic core of the city.

Which ZIP code covers the residential neighborhoods around Oswego Lake itself?

The neighborhoods surrounding Oswego Lake, including the waterfront residential areas on the lake's east and west sides, are primarily served by ZIP code 97035.