Lake Ontario

one of the Great Lakes in North America

LakeBodyOfWater lake Q1062

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Lake Ontario

Summary

Lake Ontario is a lake^[1]. It ranks in the top 0.31% of lake entities by monthly Wikipedia readership (343,576 views/month, #17 of 5,436).^[2]

Key Facts

Lake Ontario is located in Ontario^[3].
Lake Ontario is located in New York^[4].
Lake Ontario is in the country of Canada^[5].
Lake Ontario is in the country of United States^[6].
Lake Ontario's instance of is recorded as lake^[7].
Lake Ontario's inflows is recorded as Niagara River^[8].
Lake Ontario's inflows is recorded as Millhaven Creek^[9].
Lake Ontario's inflows is recorded as Black River^[10].
Lake Ontario's inflows is recorded as Don River^[11].
Lake Ontario's inflows is recorded as Genesee River^[12].
Lake Ontario's inflows is recorded as Humber River^[13].
Lake Ontario's inflows is recorded as Oswego River^[14].
Lake Ontario's inflows is recorded as Rouge River^[15].
Lake Ontario's inflows is recorded as Cataraqui River^[16].
Lake Ontario's inflows is recorded as Credit River^[17].
Lake Ontario's inflows is recorded as Eighteen Mile Creek^[18].
Lake Ontario's inflows is recorded as Etobicoke Creek^[19].
Lake Ontario's inflows is recorded as Ganaraska River^[20].
Lake Ontario's inflows is recorded as Jackson Creek^[21].
Lake Ontario's inflows is recorded as Napanee River^[22].
Lake Ontario's inflows is recorded as North Creek^[23].
Lake Ontario's inflows is recorded as Oak Orchard Creek^[24].
Lake Ontario's inflows is recorded as Russell Creek^[25].
Lake Ontario's inflows is recorded as Salmon River^[26].
Lake Ontario's inflows is recorded as South Sandy Creek^[27].

Body

Geography

Country listings include Canada^[5], a dominion of the British Empire^[28], in Canada^[29], founded in 1867^[30] and United States^[6], a sovereign state^[31], in United States^[32], founded in 1776^[33]. Located in include Ontario^[3], a province of Canada^[34], in Canada^[35], founded in 1867^[36] and New York^[4], an U.S. state^[37], in United States^[38], founded in 1788^[39]. Part of include Great Lakes^[40], a group of interconnected lakes^[41], in United States^[42] and Canada–United States border^[43], a border^[44], in Canada^[45].

Designation and Status

Lake Ontario's instance of is recorded as lake^[7].

Cultural Significance

Things named for Lake Ontario include Ontario^[46], a province of Canada^[47], in Canada^[48], founded in 1867^[49]; Ontario County^[50], a county of New York^[51], in United States^[52], founded in 1789^[53]; and Ontario Lacus^[54], a lake of Titan^[55].

Why It Matters

Lake Ontario ranks in the top 0.31% of lake entities by monthly Wikipedia readership (343,576 views/month, #17 of 5,436).^[2] It has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[56] It is known by 33 alternative names across languages and contexts.^[57]

Entities named for it include Ontario^[46], a province of Canada^[47], in Canada^[48], founded in 1867^[49]; Ontario County^[50], a county of New York^[51], in United States^[52], founded in 1789^[53]; and Ontario Lacus^[54], a lake of Titan^[55].

⭐ Popularity Graph

25/100 established

🌐 Wiki Languages

108 / 423 langs top 1%

📈 Wikipedia Views · last 2057h

407/mo 1.3M/yr

🛰️ Living Edge · news-derived, source-cited

high ≥ 0.90 · emerging ≥ 0.65 · low below — calibrated against hand-rated truth (single-source .44 · two-source .62 · production-typical .70), so a band is a measurement, not a promise. High is rare by design: it needs both a supported assertion and an evidence sentence. A confirmed or contradicted chip is a Wikidata cross-check; no chip means Wikidata has no value for that property — the ordinary case here, and it says nothing either way. A confirm-only note marks a property whose check can never disagree (Wikidata's border and capital data is not exhaustive), so silence there is a limit of the check, not of the claim.

served-tier precision 80.7% [76.2, 84.5] · rated rows currently served n=342 · entailment-gated at 0.85 · measured 2026-09-29 · re-scored every 10 min, demoted at the half-hourly fold

Located in the administrative territorial entity New York high0.98contested14 independent sources

evidence “The leader of the Seneca Nation in upstate New York is criticizing President Donald Trump’s decision to rename Lake Ontario as “Lake America,” saying it violates a more than 225-year-old treaty and shows a “blatant disrespect” for the Indigenous people who gave it its name in the first place.” citizensvoice.com · read source

Located in the administrative territorial entity the United States emerging0.8745 independent sources

evidence “Trump signs order renaming Lake Ontario as 'Lake America' in the United States” isp.netscape.com:443 · read source

Located in the administrative territorial entity Ont. emerging0.83contested3 independent sources

evidence “On Saturday, Ford unveiled a large sign in Winona, a small lakeside community part of Hamilton, Ont., which says, “Lake Ontario, now and always.”” cheknews.ca · read source

Show 9 low-confidence claims

Published, not hidden — scoring low is not a reason to withhold a sourced claim. A contradicted chip means Wikidata holds a different value; both are shown so you can judge.

Director Trump low0.612 independent sources

evidence “Trump subsequently directed that Lake Ontario, shared by the United States and Canada, be called “Lake America” for US federal purposes.” scroll.in · read source

Located in the administrative territorial entity Lake America low0.507 independent sources

evidence “Lake Ontario is now Lake America in the U.S.” watchingamerica.com · read source

Located in the administrative territorial entity the US low0.429 independent sources

evidence “Google Maps has officially changed its display label for Lake Ontario to “Lake America” for users inside the US, implementing the adjustment in response to a presidential executive order issued late last week.” timesofindia.indiatimes.com · read source

Located in the administrative territorial entity the U.S. low0.295 independent sources

evidence “Why Lake Ontario is now ‘Lake America’ in the U.S.” muskokaregion.com · read source

Located in the administrative territorial entity United States of America low0.06contradicted2 independent sources

evidence “Trump Signs Order Renaming Lake Ontario to Lake America” legalinsurrection.com · read source

Located in the administrative territorial entity North America low0.05contradicted3 independent sources

evidence “Apple Maps users in the United States will begin to see Lake America, not Lake Ontario — one of the five Great Lakes in North America — when using the website or mobile app.” techcrunch.com · read source

Located in the administrative territorial entity Wisconsin low0.05contradicted3 independent sources

evidence “On Thursday, Tom Tiffany, the Republican candidate for governor in Wisconsin who is closely aligned with Trump, publicly criticized the president's decision to sign an order renaming Lake Ontario “Lake America” as part of his trade war with Canada.” abcnews.com · read source

Located in the administrative territorial entity Oswego low0.04contradicted2 independent sources

evidence “to noon at the Lake Ontario Event and Conference Center in Oswego.” oswegocountytoday.com · read source

Located in the administrative territorial entity Florida low0.04contradicted2 independent sources

evidence “– After President Donald Trump signed an executive order last week renaming Lake Ontario to “Lake America,” Florida schools will follow suit, according to state Education Commissioner Henry Mack.” clickorlando.com · read source

🔗 Readers Also Explored · clickstream

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residence time of water

Quick Facts

Instance of lake

Country Canada, United States

Part of Great Lakes, Canada–United States border

Coordinate location 🗺️ 43.729°, -78.106°

Properties

Area +18529

Basin country United States, Canada

Described by source The Nuttall Encyclopædia, Encyclopædia Britannica 11th edition, Brockhaus and Efron Encyclopedic Dictionary, New Encyclopedic Dictionary, Small Brockhaus and Efron Encyclopedic Dictionary

Different from Q141217945, Lac Amérique

Drainage basin Lake Ontario drainage basin

Elevation above sea level +74.1

Geoshape 🗺️ View shape: Lake Ontario

Has part(s) Horsey Bay, Whitby Harbour

Length +311

Located in the administrative territorial entity Ontario, New York

Name Kaniatarí:io, Oniatarí:io, lac Saint-Louis, lac Frontenac, Lake Ontario, Lac Ontario, Lake America

Native label Lake Ontario

Official name Lake Ontario, Lac Ontario, Lake America

On focus list of wikimedia project Wikipedia:Vital articles/Level/4

Outflows St. Lawrence River

Perimeter +1146

Residence time of water +6

Topic's main category Category:Lake Ontario

Vertical depth +244

Volume as quantity +1639000

Watershed area +690000

Width +85

External References (56)

Agrovoc id c_29718

Apple maps id 14693854338701322201

Archinform location id 1210

Bibliothèque nationale de france id 154272397

Brockhaus enzyklopädie online id ontariosee

Canadian encyclopedia article id lake-ontario

Cgndb unique id FAYLN, FEHRO

Comic vine id 4020-61821

De agostini id Ontario,+lago-

Edition humboldt digital id H0007827

Encyclopedia of china (second edition) id 191123

Encyclopedia of china (third edition) id 560172

Encyclopædia britannica online id place/Lake-Ontario

Factgrid item id Liste der Biografien/Beru

Fast id 1333795

Freebase id /m/04kc4

Gadm id USA.33.25_1

Geonames id 6048611

Getty thesaurus of geographic names id 7020887

Gnd id 4116767-3

Gnis feature id 970427

Gns unique feature id -570661

Golden id Lake_Ontario-YKPM

Google maps customer id 16049172669910760828

Gran enciclopèdia catalana id ontario-4

Gran enciclopèdia catalana id (former scheme) 0047400

Great norwegian encyclopedia id Ontariosjøen

Great russian encyclopedia online id (2017) 2689865

Harper's tag lake-ontario, ontario-lake

Ilec world lake database id NAM-07

Inaturalist place id 27593

Interlingual index id i85664

J-global id 200906085638427682

Kbpedia id LakeOntario

Larousse id riviere-lac/wd/136165

Lc and marc vocabularies id geographicAreas/n-cn-on

Lemac id LEMAC201219771

Library of congress authority id sh85094825

National library of brazil id 000067686

National library of israel j9u id 987007545906405171

National library of spain spmabn id (bne v1.0) XX457558

Ne.se id ontariosjön

Nl cr aut id ge130203

Online pwn encyclopedia id 3951167

Openstreetmap relation id 1206310

Oxford reference overview id 20110803100250646

Quora topic id Lake-Ontario

Reddit topic id lake_ontario

U.s. national archives identifier 10046717

Viaf cluster id 316430186

Vikidia article id en:Lake_Ontario, fr:Lac_Ontario

Wikikids id Ontariomeer

Wolfram language entity code Entity["Concept", "LakeOntario::bkw82"], Entity["Lake", "LakeOntario::35gt7"]

Wordnet 3.1 synset id 09355676-n

Yale lux id place/62782d11-ba42-4b09-9ced-93da92d2624a

Yle topic id 18-91354

🌐 Available in 30 languages

enLake Ontario arبحيرة أونتاريو csOntario (jezero) daLake Ontario deOntariosee elΛίμνη Οντάριο esLago Ontario faدریاچه انتاریو fiOntariojärvi frLac Ontario heימת אונטריו hiओण्टारियो झील huOntario-tó idDanau Ontario itLago Ontario jaオンタリオ湖 ko온타리오호 msTasik Ontario nlOntariomeer noOntariosjøen plOntario (jezioro) ptLago Ontário roLacul Ontario ruОнтарио (озеро) svOntariosjön thทะเลสาบออนแทรีโอ trOntario Gölü ukОнтаріо (озеро) viHồ Ontario zh安大略湖

🏷️ Also known as

en Ontario en Lake Ontario ar بحيرة أونتاريو cs Ontarijské jezero de Lake Ontario de Ontariosee el Λίμνη Οντάριο es Lago Ontario fa دریاچه انتاریو fi Ontariojärvi fr lac Ontario fr Ontario he ימת אונטריו hi ओण्टारियो झील hu Ontario-tó id Danau Ontario it Lago Ontario ja オンタリオ湖 ko 온타리오호 ms Tasik Ontario

🔗 Connections

← Located in or next to body of water 38

New York, Toronto, Rochester, Hamilton, Mississauga, Kingston, Oshawa, Monroe County +30 more

Inflows 14

Niagara River, Welland Canal, Humber River, Don River, Genesee River, Rouge River, Cataraqui River, Oswego River +6 more

← Mouth of the watercourse 13

Niagara River, Humber River, Don River, Genesee River, Cataraqui River, Oswego River, Black River, Mimico Creek +5 more

← Lake on watercourse 7

St. Lawrence River, Niagara River, Niagara River, Genesee River, Rouge River, Oswego River, Black River

Described by source 3

Brockhaus and Efron Encyclopedic Dictionary, Encyclopædia Britannica 11th edition, The Nuttall Encyclopædia

Named after 3

Ontario, Ontario County, Ontario Lacus

Basin country 2

United States, Canada

Country 2

United States, Canada

Located in the administrative territorial entity 2

New York, Ontario

Part of 2

Great Lakes, Canada–United States border

← Origin of the watercourse 2

St. Lawrence River, Rideau Canal

← Shares border with 2

St. Catharines, Toronto Harbour

Belongs to 1

Great Lakes

Contained subdivisions 1

Toronto Magnetic and Meteorological Observatory

Has these parts 1

Bay of Quinte

Instance of 1

lake

On focus list of wikimedia project 1

Wikipedia:Vital articles/Level/4

Outflows 1

St. Lawrence River

People who died here 1

William Guy Carr

Topic's main category 1

Category:Lake Ontario

← Category's main topic 1

Category:Lake Ontario

← Terminus 1

Welland Canal

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[5] ↑ Lake Ontario — country (P17): Canada. Canadian Geographical Names Database. Retrieved 2021-02-15. wikidata.org.
[6] ↑ Lake Ontario — country (P17): United States. Geographic Names Information System. Retrieved 2021-02-15. wikidata.org.
[7] ↑ Lake Ontario — instance of (P31): lake. Canadian Geographical Names Database. Retrieved 2021-02-15. wikidata.org.
[3] ↑ Lake Ontario — located in the administrative territorial entity (P131): Ontario. Canadian Geographical Names Database. Retrieved 2021-02-15. wikidata.org.
[4] ↑ Lake Ontario — located in the administrative territorial entity (P131): New York. Geographic Names Information System. Retrieved 2021-02-15. wikidata.org.
[8] ↑ Lake Ontario — inflows (P200): Niagara River. wikidata.org.
[9] ↑ Lake Ontario — inflows (P200): Millhaven Creek. Canadian Geographical Names Database. Retrieved 2020-11-30. wikidata.org.
[10] ↑ Lake Ontario — inflows (P200): Black River. wikidata.org.
[11] ↑ Lake Ontario — inflows (P200): Don River. wikidata.org.
[12] ↑ Lake Ontario — inflows (P200): Genesee River. wikidata.org.
[13] ↑ Lake Ontario — inflows (P200): Humber River. wikidata.org.
[14] ↑ Lake Ontario — inflows (P200): Oswego River. wikidata.org.
[15] ↑ Lake Ontario — inflows (P200): Rouge River. wikidata.org.
[16] ↑ Lake Ontario — inflows (P200): Cataraqui River. wikidata.org.
[17] ↑ Lake Ontario — inflows (P200): Credit River. wikidata.org.
[18] ↑ Lake Ontario — inflows (P200): Eighteen Mile Creek. wikidata.org.
[19] ↑ Lake Ontario — inflows (P200): Etobicoke Creek. wikidata.org.
[20] ↑ Lake Ontario — inflows (P200): Ganaraska River. wikidata.org.
[21] ↑ Lake Ontario — inflows (P200): Jackson Creek. wikidata.org.
[22] ↑ Lake Ontario — inflows (P200): Napanee River. wikidata.org.
[23] ↑ Lake Ontario — inflows (P200): North Creek. wikidata.org.
[24] ↑ Lake Ontario — inflows (P200): Oak Orchard Creek. wikidata.org.
[25] ↑ Lake Ontario — inflows (P200): Russell Creek. wikidata.org.
[26] ↑ Lake Ontario — inflows (P200): Salmon River. wikidata.org.
[27] ↑ Lake Ontario — inflows (P200): South Sandy Creek. wikidata.org.
[40] ↑ Lake Ontario — part of (P361): Great Lakes. wikidata.org.
[43] ↑ Lake Ontario — part of (P361): Canada–United States border. wikidata.org.

Inverse relationships (entities pointing at this one)

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Lake Ontario. Retrieved October 1, 2026, from https://4ort.xyz/entity/lake-ontario

MLA “Lake Ontario.” 4ort.xyz Knowledge Graph, 4ort.xyz, 1 Oct. 2026, https://4ort.xyz/entity/lake-ontario.

BibTeX

@misc{4ortxyz_lake-ontario_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Lake Ontario}}, year = {2026}, url = {https://4ort.xyz/entity/lake-ontario}, note = {Accessed: 2026-10-01}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Lake Ontario — https://4ort.xyz/entity/lake-ontario (retrieved 2026-10-01)

Canonical URL: https://4ort.xyz/entity/lake-ontario · Last refreshed: October 1, 2026

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

4d ago · Mxn · 2026-09-27 view diff on Wikidata ↗

Different from → Q141217945, Lac Amérique

Wikipedia languages → ['af', 'ang', 'ar', 'arc', 'arz', 'ast', 'az', 'ba', 'be', 'be_x_old', 'bg', 'br

Sitelink count → 108

Claims rich → —

"/* wbsetclaim-create:2||1 */ [[Property:P1889]]: [[Q114635511]]"
8d ago · Mxn · 2026-09-22 view diff on Wikidata ↗

Name → {'lang': 'iro', 'text': 'Kaniatarí:io'}, {'lang': 'iro', 'text': 'Oniatarí:io'}, {'lang': 'fr', 'text': 'lac Saint-Louis'} +4

"/* wbsetclaim-update:2||1|9 */ [[Property:P2561]]: Lake America"
21d ago · Mxn · 2026-09-10 view diff on Wikidata ↗

Gnis feature id → 970427

"/* wbsetclaim-create:2||1 */ [[Property:P590]]: 970427"
22d ago · Derek J Moore · 2026-09-09 view diff on Wikidata ↗

Geoshape → Data:Lake Ontario.map

"/* wbsetclaim-create:2||1 */ [[Property:P3896]]: Data:Lake Ontario.map"
25d ago · SuperPianoMan9167 · 2026-09-05 view diff on Wikidata ↗

Gnis feature id → 970427

"/* wbsetclaim-update:2||1|1 */ [[Property:P1448]]: Lake America"
4w ago · Mxn · 2026-08-31 view diff on Wikidata ↗

Different from → Q141217945, Lac Amérique

"/* wbsetclaim-create:2||1 */ [[Property:P1889]]: [[Q141217945]]"
4w ago · PinTweaks · 2026-08-31 view diff on Wikidata ↗

Official name → {'lang': 'en', 'text': 'Lake Ontario'}, {'lang': 'fr', 'text': 'Lac Ontario'}, {'lang': 'en-us', 'text': 'Lake America'}

"/* wbeditentity-update-languages-and-other-short:0||es, ca, fr, en */ Cleanup: normalize text; remove alias=label/mul; downgrade preferred ranks ([[User:Difool/WikidataCleanup]])"
4w ago · TarnishedPath · 2026-08-28 view diff on Wikidata ↗

Official name → {'lang': 'en', 'text': 'Lake Ontario'}, {'lang': 'fr', 'text': 'Lac Ontario'}, {'lang': 'en-us', 'text': 'Lake America'}

"/* wbremoveclaims-remove:1| */ [[Property:P1448]]: Lake America"
4w ago · MPF · 2026-08-28 view diff on Wikidata ↗

Official name → {'lang': 'en', 'text': 'Lake Ontario'}, {'lang': 'fr', 'text': 'Lac Ontario'}, {'lang': 'en-us', 'text': 'Lake America'}

"/* wbeditentity-statements-multiple-properties-update:0||0 */ Changing order of values for [[Property:P1448|P1448]]"
4w ago · Albgr03 · 2026-08-27 view diff on Wikidata ↗

Official name → {'lang': 'en', 'text': 'Lake Ontario'}, {'lang': 'fr', 'text': 'Lac Ontario'}, {'lang': 'en-us', 'text': 'Lake America'}

"/* wbsetclaim-update:2||1|1 */ [[Property:P1448]]: Lake Ontario"
4w ago · Vicarage · 2026-08-27 view diff on Wikidata ↗

Official name → {'lang': 'en', 'text': 'Lake Ontario'}, {'lang': 'fr', 'text': 'Lac Ontario'}, {'lang': 'en-us', 'text': 'Lake America'}

"/* wbsetclaim-create:2||1 */ [[Property:P1448]]: Lake Ontario"
5w ago · JhowieNitnek · 2026-08-27 view diff on Wikidata ↗

Lemac id → LEMAC201219771

Agrovoc id → c_29718

Inaturalist place id → 27593

Official name → {'lang': 'en', 'text': 'Lake Ontario'}, {'lang': 'fr', 'text': 'Lac Ontario'}, {'lang': 'en-us', 'text': 'Lake America'}

+ 8 other properties edited (see Wikidata diff for full list)

"/* wbsetclaim-create:2||1 */ [[Property:P1448]]: Lake America"
5w ago · NMaia · 2026-08-26 view diff on Wikidata ↗

Ne.se id → ontariosjön

Harper's tag → lake-ontario, ontario-lake

"/* wbeditentity-statements-multiple-properties-update:0||4 */ Cleanup: remove wikimedia+self_stated_in refs; replace property ([[User:Difool/WikidataCleanup]])"
15w ago · Susmuffin · 2026-06-15 view diff on Wikidata ↗

Category of associated people → Q32675669

Country → Canada, United States

Length → {'unit': 'Q828224', 'amount': '+311'}

Located in the administrative territorial entity → Ontario, New York

+ 33 other properties edited (see Wikidata diff for full list)

"/* wbsetclaim-create:1||1 */ [[Property:P13772]]: lake-ontario, Matched to [[:toollabs:mix-n-match/#/entry/289946991|lake ontario (#289946991)]] in [[:toollabs:mix-n-match/#/catalog/7915|Harper's tag]"

Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.

Lake Ontario

Lake Ontario

Summary

Key Facts

Body

Geography

Designation and Status

Cultural Significance

Why It Matters

Related Entities

References

Direct Wikidata claims

Inverse relationships (entities pointing at this one)

Inline context (facts about related entities)

Class ancestry

Aggregate / graph-position facts

📑 Cite this page

Edit History