Seneca, OR Profile: Facts, Map & Data


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Seneca, Oregon - Basic Facts

Real Estate Resources

The City of Seneca had a population of 200 as of July 1, 2016. Seneca ranks in the lower quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Oregon. See peer rankings below.

The primary coordinate point for Seneca is located at latitude 44.1352 and longitude -118.9763 in Grant County. The formal boundaries for the City of Seneca (see map below) encompass a land area of 0.8 sq. miles and a water area of 0 sq. miles. Grant County is in the Pacific time zone (GMT -8). The elevation is 4,675 feet.

The City of Seneca (GNIS ID: 2411867) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Oregon is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Seneca is located within Seneca Division of Grant County.

Beneath the boundary map are tables with Seneca population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Seneca, OR Boundary Map

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Boundary Maps: Seneca Division | Grant County | Oregon Counties

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Seneca, OR Data & Demographics (As of July 1, 2016)


Total Population 200
Population in Households 200
Population in Familes 162
Population in Group Qrtrs 0
Population Density1 252
Diversity Index2 18


Total Households 97
Average Household Size 2.06
Family Households 65
Average Family Size 2


Total Housing Units 131 (100%)
Owner Occupied HU 72 (55.0%)
Renter Occupied HU 25 (19.1%)
Vacant Housing Units 34 (26.0%)
Median Home Value $168,750
Average Home Value $362,324


Median Household Income $38,360
Average Household Income $72,105
Per Capita Income $33,877
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.08% -0.2%
Households 0.33% 0.0%
Families 1.29% 0.0%
Median Household Income   1.23%
Per Capita Income   2.4%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Seneca, OR - Peer Comparisons by Rank and Percentile

The table below compares Seneca to the other 378 incorporated cities, towns and CDPs in Oregon by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 322 15th
Population Density1 # 294 22nd
Diversity Index2 # 337 11th
Median Household Income # 297 22nd
Per Capita Income # 45 88th

Additional comparisons and rankings can be made with a VERY EASY TO USE Oregon Census Data Comparison Tool.