Seneca ZIP Codes — Grant County, OR

There is one unique ZIP code in Seneca, Oregon and it is 97873. Area code: 541.

ZIP codes

106.60

sq mi land

0.00

sq mi water

541

area code

Seneca, OR ZIP code map

About Seneca, OR

Seneca is a quaint city located in the state of Oregon, known for its beautiful landscapes and small-town charm. Nestled in Grant County, it embodies the spirit of rural America and serves as a peaceful refuge for those seeking an escape from bustling urban life. With a single ZIP code, 97873, Seneca boasts a tight-knit community that embraces the simplicity of life in the countryside.

Location & geography

Seneca is situated in the eastern part of Oregon, within the expansive Grant County. This small city is bordered by the stunning terrain of the Blue Mountains and is approximately 25 miles southwest of Prairie City, 30 miles northwest of John Day, 40 miles southeast of Canyon City, and 35 miles northeast of Burns. The land area of Seneca stretches over 106.60 square miles, with no water area present, making it a predominantly landlocked community.

Community & economy

The character of Seneca is defined by its friendly residents and a strong sense of community, where neighbors often know one another by name. The local economy has traditionally centered around agriculture and ranching, which significantly contributes to the daily lives of its inhabitants. Residents enjoy a slower pace of life, filled with community events, outdoor activities, and opportunities to appreciate the natural beauty that surrounds them.

Transportation

Seneca is accessible via local roads, with the nearest significant highway being U.S. Route 395, which connects it to larger towns and cities within the area. The nearest airport is the John Day Airport, located approximately 30 miles to the northwest, providing essential air travel services for the region. Public transportation options are limited, promoting a reliance on personal vehicles for daily commutes.

History

Seneca was established as a small settlement in the late 19th century and has remained a vibrant part of Grant County's history. Key industries have included agriculture and logging, which have played vital roles in shaping the community's economy and lifestyle over the years. Notable events in its history include the development of local infrastructure and community organization that have fostered its enduring spirit.

Did you know?

A surprising fact about Seneca is that it is home to a significant number of historic buildings that reflect its 19th-century origins. Additionally, the city's picturesque surroundings provide a backdrop for various outdoor recreational activities, attracting nature lovers and adventurers alike.

ZIP codes for Seneca, OR (1)

ZIP code	City	County	Map
97873	Seneca	Grant	View map

Demographics & statistics

167

Population

54.6

Median age

$66,250

Median household income

$32,130

Per capita income

$94,200

Median home value

$713

Median monthly rent

77.7%

Home ownership

12.0%

Poverty rate

0.0%

Unemployment

Housing units

6.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	19	11.4%
18 and over	148	88.6%
65 and over	46	27.5%
Median age	54.6 years

Race & ethnicity

White 85.1%

Two or more races 8%

Hispanic or Latino 4.6%

American Indian / Alaska Native 2.3%

Group	Count	%
White	149	85.1%
Two or more races	14	8%
Hispanic or Latino	8	4.6%
American Indian / Alaska Native	4	2.3%

Household income

Under $10k 12.8%

$10k–$15k 4.3%

$15k–$25k 8.5%

$25k–$35k 5.3%

$35k–$50k 8.5%

$50k–$75k 13.8%

$75k–$100k 34.0%

$100k–$150k 9.6%

$150k–$200k 3.2%

Range	% of households
Under $10k	12.8%
$10k–$15k	4.3%
$15k–$25k	8.5%
$25k–$35k	5.3%
$35k–$50k	8.5%
$50k–$75k	13.8%
$75k–$100k	34.0%
$100k–$150k	9.6%
$150k–$200k	3.2%
Median income	$66,250

Housing

Home values

Under $50k 1.4%

$50k–$100k 58.9%

$100k–$150k 12.3%

$150k–$200k 12.3%

$200k–$300k 6.8%

$500k–$1M 8.2%

Housing overview

Metric	Value
Median home value	$94,200
Median rent / month	$713
Owner occupied	77.7%
Renter occupied	22.3%
Vacant	21.7%
Single-family detached	82.5%
Large apartment buildings	0.0%
Mobile homes	12.5%
Median rooms	5.6
Avg household size (owned)	1.75

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	2.5%
1990–1999	6.7%
1980–1989	0.0%
1970–1979	5.8%
1960–1969	2.5%
1950–1959	19.2%
1940–1949	14.2%
1939 or earlier	49.2%

Bedrooms

Size	% of units
No bedroom (studio)	3.3%
1 bedroom	4.2%
2 bedrooms	38.3%
3 bedrooms	27.5%
4 bedrooms	26.7%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	5.3%
1 vehicle	42.6%
2 vehicles	17.0%
3 or more	35.1%

Heating fuel

Fuel type	%
Electricity	4.3%
Fuel oil	20.2%
Wood	75.5%

Households & families

Household type	Count	%
Married-couple family	38	40.4%
Cohabiting couple	1	1.1%
Male householder, no spouse	18	19.1%
Female householder, no spouse	37	39.4%
Households with children under 18	11	11.7%
Households with seniors (65+)	32	34.0%
Average household size	1.78

Marital status

Status	Male	Female
Never married	33.3%	3.8%
Married	53.6%	51.9%
Separated	1.4%	5.1%
Widowed	1.4%	20.3%
Divorced	10.1%	19.0%

Education

Less than 9th grade 5.0%

Some HS, no diploma 5.7%

HS graduate 48.6%

Some college, no degree 32.9%

Associate's degree 1.4%

Bachelor's degree 3.6%

Graduate / professional 2.9%

Metric	%
HS diploma or higher	89.3%
Bachelor's or higher	6.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	1	8.3%
Kindergarten	0	0.0%
Elementary school	11	91.7%
High school	0	0.0%
College / grad school	0	0.0%

Employment

Industry of employment

Education & healthcare 36.8%

Arts, food & hospitality 19.5%

Agriculture & mining 18.4%

Public administration 8.0%

Construction 6.9%

Retail trade 3.4%

Transportation & utilities 3.4%

Other services 3.4%

Occupation

Category	%
Management, business & arts	34.5%
Service	40.2%
Sales & office	2.3%
Natural resources & construction	14.9%
Production & transportation	8.0%

Employment type

Type	%
Private sector	54.0%
Government	46.0%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	70.6%
Carpool	10.6%
Public transit	0.0%
Walk	17.6%
Other means	1.2%
Avg commute (minutes)	16.6

Poverty

All people 12.0%

Under 18 years 5.3%

18 and over 12.8%

Married-couple families 2.6%

Female-led households 0.0%

Income support

Source	% of households
Social Security	37.2%
Retirement income	22.3%
Supplemental Security	7.4%
Cash public assistance	1.1%
Food stamps / SNAP	11.7%

Health indicators

Condition	%
High blood pressure	38.9%
High cholesterol	36.7%
Heart disease	9.5%
Stroke	4.5%
Asthma	11.1%
Arthritis	32.2%
Kidney disease	4.0%
Pulmonary disease	10.1%
Cancer	9.0%

Behavior / access	%
Binge drinking	14.4%
No physical activity	22.5%
Less than 7 hrs sleep	30.3%
Fair or poor health	18.1%
Poor mental health	14.7%
Poor physical health	13.3%
No health insurance	10.9%
Visited doctor (checkup)	75.2%
Visited dentist	61.6%
Cholesterol screening	91.1%
Teeth loss	16.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	4	2.7%

Disability	%
Any disability	18.0%
Under 18	0.0%
18–64 years	14.7%
65 and over	32.6%

Health insurance coverage

Type	%
Private insurance	75.4%
Public insurance	32.9%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	159	95.2%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	167	100.0%
Born in same state	167	100.0%
Born in different state	115	68.9%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	15	9%
English	12	7.2%
Italian	11	6.6%

Ancestry	Count	%
French	7	4.2%
Irish	4	2.4%
Dutch	2	1.2%

Technology access

Metric	% of households
Computer access	56.3%
Internet access	91.5%

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

Frequently asked questions

What ZIP codes does Seneca, OR have?

Seneca, OR has one ZIP code: 97873. Each ZIP code serves a distinct delivery area within the city and surrounding region.