Oregon mammals

Harbor Seal in Oregon

Phoca vitulina

Native to Oregon S4 Apparently Secure in Oregon

Not listed as nonindigenous in Oregon by USGS NAS; native to its Oregon range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

Harbor Seal in Oregon, by the numbers

Common in Oregon 13th most recorded of 178 mammals logged in Oregon

2,356 occurrence records
2,228 with iNaturalist photos
Jul 10, 2026 Last seen in Oregon

Records from 2000–2026.

2,356 total records count every Oregon occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 2,353 records with a full observation date.

When to look for the Harbor Seal in Oregon

Most sightings fall in May to August.

2,353 Oregon occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly Oregon records (table)
MonthRecords
January160
February125
March177
April155
May278
June302
July355
August225
September172
October160
November154
December90

Monthly harbor seal occurrence records (iNaturalist and GBIF) in Oregon, 2000–2026.

Seasonality

Year-round in Oregon, with recorded sightings peaking in May–August.

Occurrence map

Where Harbor Seal has been recorded in Oregon

300 records mapped · zoom and drag to explore

300 Oregon records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Oregon Islands National Wildlife Refuge Wilderness Area 550
Siuslaw National Forest 13
Cape Arago Marine Gardens and Simpson Reef State Natural Area 6
Cape Perpetua Scenic Area 4
Clay Meyers State Natural Area - (Beltz Farm) 1
Lewis and Clark National Historical Park 1
Beach 1
Cummins Creek Wilderness 1

Protected places with the most harbor seal sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in Oregon

CountyRecords
Lincoln County 1,065
Lane County 152
Tillamook County 146
Coos County 145
Clatsop County 133
Curry County 126
Douglas County 39
Columbia County 8
Multnomah County 5
Hood River County 3
Wasco County 1
Marion County 1
Deschutes County 1
Other localities 531

The complete county distribution, spread across 13 Oregon counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Harbor seal records follow Oregon’s coast through estuaries, rocky headlands, beaches, and protected shorelines near Oregon Dunes National Recreation Area and coastal state parks. Sightings span the calendar and reach their monthly high in July. Accessible haul-outs and viewpoints shape where people report seals, so the record pattern should not be treated as a count of animals along the coast.

Occurrence data from iNaturalist and GBIF.

More mammals in Oregon in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"