HomeOregonGrant CountySeneca
Seneca, Oregon: commercial real estate data.
Seneca is a Census city of 109 people across 0.79 square miles of land, in Grant County. Median household income is $39,821, 85.9 percent of occupied homes are owned.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Seneca
What Seneca is
- Census place typecity
- Land area0.79 sq mi
- Water area0 sq mi
- Population per square mile of land137 plus or minus 67
- County holding the largest share of its areaGrant County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Seneca
How many people live in Seneca
- Population109 plus or minus 53
- Median age67.8 plus or minus 16.2
- Population under 1810 plus or minus 15
- Share under 189.2 percent plus or minus 12.8
- Population 65 and over56 plus or minus 36
- Share 65 and over51.4 percent plus or minus 21.8
- Households71 plus or minus 37
- Family households22 plus or minus 15
- Share of households that are families31.0 percent plus or minus 13.6
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Seneca
Income and work in Seneca
- Median household income$39,821 plus or minus $39,441
- Per capita income$30,394 plus or minus $8,554
- Civilian labor force47 plus or minus 30
- Employed47 plus or minus 30
- Unemployed0
- Unemployment rate0.0 percent
- Adults 25 and over99 plus or minus 51
- Adults 25 and over with a high school diploma or higher73.7 percent plus or minus 53.6
- Adults 25 and over with a bachelor degree or higher19.2 percent plus or minus 18.5
- Adults 25 and over with a graduate degree4.0 percent plus or minus 14.3
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Seneca
Housing in Seneca
- Housing units105 plus or minus 42
- Occupied units71 plus or minus 37
- Vacant units34 plus or minus 23
- Vacancy rate32.4 percent plus or minus 17.7
- Owner occupied61 plus or minus 35
- Renter occupied10 plus or minus 12
- Ownership rate85.9 percent plus or minus 20.6
- Median owner-occupied home value$156,300
- Single family units92 plus or minus 35
- Share single family87.6 percent plus or minus 48.6
- Units in buildings of two or more0
- Share in buildings of two or more0.0 percent
- Mobile homes13 plus or minus 14
- Median year structure built1947
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Seneca
How Seneca gets to work
- Workers 16 and over who commute47 plus or minus 30
- Commuting under 15 minutes21 plus or minus 20
- Share commuting under 15 minutes44.7 percent plus or minus 32.3
- Commuting 30 minutes or more13 plus or minus 19
- Share commuting 30 minutes or more27.7 percent plus or minus 35.6
- Drove alone80.9 percent plus or minus 72.6
- Carpooled0.0 percent
- Public transport0.0 percent
- Walked19.1 percent plus or minus 29.5
- Worked from home0.0 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Seneca
Flood risk in Seneca
- NFIP communityCity of Seneca
- NFIP community number410081
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date03/23/21(M)
The City of Seneca participates in the National Flood Insurance Program as community 410081 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Grant County, not Seneca
Grant County context, not Seneca figures
- Establishments in Grant County207
- Covered employment, Grant County2,498
- Average annual pay, Grant County$54,057
- Housing units permitted, Grant County9
Every figure in this section is published for Grant County as a whole and is not a measurement of Seneca.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Seneca questions, answered from the record.
How many people live in Seneca, Oregon?
109, in 71 households. Seneca city covers 0.79 square miles of land, which is 137 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Seneca in?
Grant County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Seneca?
$39,821. The median owner-occupied home is valued at $156,300. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Is Seneca in the National Flood Insurance Program?
Yes. Seneca appears in the FEMA Community Status Book as Seneca, city of, community 410081, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Seneca figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Grant County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Seneca.
Is zoning published for Seneca?
No. Nothing on this page presents parcel level zoning.
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