Northern Elephant Seal

Mirounga angustirostris

LCLeast Concern

Northern elephant seals get their name from the male's inflatable, trunk-like nose, used to bellow and intimidate rivals during the winter breeding season. A single dominant male can father pups with dozens of females on one beach, while the rest of the year the species disappears on deep foraging dives far offshore. Records below run heaviest each winter and spring, tracing the beaches where California's breeding colonies gather.

Range through the year

Where Northern Elephant Seal is seen

Northern Elephant Seal is recorded in 4 US states from 8,410 occurrence records, most heavily in California (8,182 records) and Washington (145).

Current range8,410 records · 4 states
AlabamaArizonaArkansasCalifornia · 8,182 records · view state pageColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregon · 81 records · view state pagePennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashington · 145 records · view state pageWest VirginiaWisconsinWyomingAlaska · 2 recordsAKHawaiiHIPuerto RicoPR
Occurrence data by state and month
Northern Elephant Seal – occurrence records by US state and month (8,410 total across 4 states)
StateJanFebMarAprMayJunJulAugSepOctNovDecYear
California1,3279508569007125605374783263154607618,182
Washington3111823181718158851145
Oregon479101410115214481
Alaska·····11·····2

Based on 11,348 georeferenced US records, 2000-2026. Shading is observation density (where people record sightings), not true abundance. Alaska, Hawaii & Puerto Rico shown as insets.

Explore by state

Northern Elephant Seal across 3 states

Occurrence records, conservation status, and the places it turns up, state by state. Open a state for detail, or visit its full page.

  • CaliforniaNativeCommon11,001 records

    State rankUnranked

    Notable placesPoint Reyes National Seashore · Hearst San Simeon State Park · Año Nuevo State Park · California Coastal National Monument

    Countiesrecorded in 12

    Year-round in California, with recorded sightings peaking in January–April.

  • WashingtonNativeOccasional222 records

    Notable placesSan Juan Islands National Monument · Deception Pass · Olympic-Willapa Hills-South Puget Sound Wildlife Area Complex · Seashore Conservation Area

    Countiesrecorded in 10

    Year-round in Washington, with recorded sightings peaking in March–August.

  • OregonNativeOccasional118 records

    State rankNot Applicable

    Notable placesOregon Islands National Wildlife Refuge Wilderness Area · Cape Arago Marine Gardens and Simpson Reef State Natural Area · Siuslaw National Forest · Beach

    Countiesrecorded in 7

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

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.

SizeNorthern Elephant Seal beside a 1.8 m adult, drawn to scale
Created by potrace 1.16, written by Peter Selinger 2001-2019 Created by potrace 1.16, written by Peter Selinger 2001-2019
Body length
3–5 m9 ft 10 in–16 ft 5 in
Weight
400–2,300 kg882–5,071 lb

Silhouettes drawn to scale against a 1.8 m5 ft 11 in adult.

Elevation

From 200 georeferenced records, the Northern Elephant Seal is recorded from sea levelsea level to 342 m1,122 ft, with half of sightings below 7 m23 ft.

Each band shows the share of georeferenced sightings that fall within it. Records cluster where people live and hike, so low, populated elevations are over-represented. Read this as observation density, not true abundance.

Observation peakJanuary7,225 records

Seasonality from research-grade observation dates across the US (7,225 records, all years). Reflects when the species is recorded, not a guarantee of presence.

Sounds & calls

Hear the Northern Elephant Seal: 2 field recordings. Press play to listen.

Best encounter

Where and when to see a Northern Elephant Seal

Your best chance: California, in January.

Where
CaliforniaCA
When
January
Trophic relationshipsFood web What a Northern Elephant Seal eats, and what eats it.
Eaten by4
OrcaOrcinus orcaSalmon SharkLamna ditropisSmalltooth Cookiecutter SharkIsistius brasiliensisGreat White SharkCarcharodon carcharias
This speciesNorthern Elephant Seal
Dana Octopus-squidTaningia danaeOpalescent Inshore SquidDoryteuthis opalescensPacific HakeMerluccius productusGiant Pacific OctopusEnteroctopus dofleiniRagfishIcosteus aenigmaticusSpotted RatfishHydrolagus collieiBlue SharkPrionace glaucaSpiny DogfishSqualus acanthias
Eats8

A sample of documented feeding relationships, filtered to species that also occur in the US. Diet and predators vary by region and season, and this is not a complete list, many animals eat, and are eaten by, more than what has been formally recorded here.

Life history

The Northern Elephant Seal (400–2300 kg881.8–5070.6 lb) is a carnivore that first breeds around 3 years, and bears about 1 young per litter. Maximum recorded longevity is 20.3 years.

Life cycle

  1. Birthlitter of 1 young
  2. Sexual maturity3 yr (female) · 5 yr (male)
  3. Typical lifespan20.3 years
  4. Maximum recorded longevity20.3 years

Reproduction

Litter size
1youngaverage
Litters / year
1.05litters
Age at first breeding
3years♀ 3 · ♂ 5 yr

Diet composition

Carnivore

By foraging composition: 60% invertebrates, 40% fish.

  • Invertebrates60%
  • Fish40%

Most active during the day and at dawn and dusk.

Typical values for the species, not local measurements. Maximum longevity is the longest lifespan on record; most individuals live far less.

Commonly confused with

Animals people sometimes mistake for the northern elephant seal, and how to tell them apart.

A seal built around one dramatic feature

Adult males carry an inflatable, trunk-like snout that gives the species its name, used to produce a loud, resonant roar during breeding season and to signal size and dominance to rivals. Males dwarf females, growing several times heavier and reaching lengths few other seals approach. Outside the breeding season, both sexes look far plainer: smooth, grayish-brown, and built for a life spent mostly underwater rather than hauled out on a beach.

Breeding beaches concentrated on the California coast

Nearly every US record comes from California, with smaller numbers reported in Oregon and Washington. Records cluster tightly at or just above sea level, reflecting the sandy and rocky beaches where seals haul out to breed, molt, and rest. Sightings peak sharply from January through April, when animals crowd onto beaches for the breeding season, then drop through summer and fall as the seals head back out to sea to feed. A single successful male can breed with dozens of females gathered on his stretch of beach in one season, an unusually lopsided mating system even among seals.

Elephant seal hauled out on sand near the waterline, rear flipper flexed up in the air
Hauled out between feeding trips, a seal stretches on a California beach. Photo: Lisa Biasillo (iNaturalist), CC BY 4.0.

Champion divers with an unusual diet

Once they leave the beach, elephant seals become some of the deepest-diving mammals in the ocean, hunting for squid, octopus, and deep-water fish far from shore. Recorded prey includes deep-sea squid, Pacific hake, and even the giant Pacific octopus, evidence of dives well beyond what most marine mammals attempt. That same offshore life makes them targets for the ocean’s biggest predators: orcas, great white sharks, and salmon sharks all prey on elephant seals, especially younger or weakened animals.

Two elephant seals rearing chest to chest sparring on a beach, with a resting colony nearby
Bulls spar for position on a crowded breeding beach while others rest nearby. Photo: Lisa Biasillo (iNaturalist), CC BY 4.0.

From near extinction to a full recovery

Commercial sealers hunting for blubber oil drove northern elephant seals to the brink of extinction by the late 1800s, leaving only a small remnant colony off Mexico’s coast. Protected from hunting, the population rebounded dramatically over the following century and now breeds at colonies up and down the California coast. Adults can live two decades, and the IUCN currently lists the species as Least Concern, one of the more complete recoveries among marine mammals hunted to near-collapse.

Data & sources

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