Thunder Bay

**Thunder Bay** is the most populous city in Northwestern Ontario, in Canada. Its population was 108,843 as of the 2021 census. Before, it was two cities called Fort William and Port Arthur. Thunder Bay has the second largest population in Northern Ontario, behind Greater Sudbury.

## Media

CKPR 580

CJSD 94.3

## Infobox (settlement)

- **name**: Thunder Bay
- **official name**: City of Thunder Bay
- **nickname**: List of city nicknames in Canada#Ontario, "Canada's Gateway to the West", "T-Bay", "Lakehead" or "The Lakehead"
- **settlement type**: List of cities in Ontario, City (List of municipalities in Ontario#Single-tier municipalities, single-tier)
- **motto**: Superior by Nature / The Gateway to the West
- **image flag**: Flag of Thunder Bay.svg
- **flag size**: 120x80px
- **image shield**: Coat of arms of Thunder Bay, Canada.png
- **shield size**: 120x80px
- **pushpin map**: Ontario
- **pushpin map caption**: Location of Thunder Bay in Ontario
- **subdivision type**: Country
- **subdivision name**: Canada
- **subdivision type1**: Provinces and territories of Canada, Province
- **subdivision name1**: Ontario
- **subdivision type2**: List of census divisions of Ontario#Districts, District
- **subdivision name2**: Thunder Bay District, Thunder Bay
- **subdivision type3**: Census Metropolitan Area#Census metropolitan areas, CMA
- **subdivision name3**: Thunder Bay
- **seat type**: Electoral Districts     
List of Canadian federal electoral districts, Federal
- **seat**:
Thunder Bay—Superior North (federal electoral district), Thunder Bay—Superior North/Thunder Bay—Rainy River
- **parts type**: List of Ontario provincial electoral districts, Provincial
- **parts**: Thunder Bay—Superior North (provincial electoral district), Thunder Bay—Superior North/Thunder Bay—Atikokan (provincial electoral district), Thunder Bay—Atikokan
- **government type**: Local government in Canada, Municipal Government
- **leader title**: List of mayors of Thunder Bay, Ontario, Mayor
- **leader name**: Ken Boshcoff
- **leader title1**: City manager
- **leader title2**: Governing Body
- **leader name2**: Thunder Bay City Council
- **leader title3**: House of Commons of Canada, MPs
- **leader name3**: Patty Hajdu (Liberal Party of Canada, Liberal)
Marcus Powlowski (Liberal Party of Canada, Liberal)
- **leader title4**: Legislative Assembly of Ontario, MPPs
- **leader name4**: Lise Vaugeois (Ontario New Democratic Party, ONDP)
Kevin Holland (Canadian politician), Kevin Holland (Progressive Conservative Party of Ontario)
- **established title**: Settled
- **established date**: 1683 as Fort Kaministiquia, Fort Caministigoyan
- **established title2**: Amalgamation (politics), Amalgamation
- **established date2**: 1 January 1970
- **area total km2**: 447.5
- **area land km2**: 328.24
- **area water km2**: 119.0
- **area water percent**: 26.6
- **area urban km2**: 179.38
- **area metro km2**: 2556.37
- **elevation m**: 199
- **population as of**: 2021 Canadian Census, 2021
- **population total**: 108843 (List of the largest municipalities in Canada by population, 51st)
- **population density km2**: 332.1
- **population metro**: 123258 (List of census metropolitan areas and agglomerations in Canada, 34th)
- **population density metro km2**: 48.3
- **population urban**: 95266 (List of the largest population centres in Canada, 36th)
- **population density urban km2**: 1253
- **population demonym**: Thunder Bayer
- **demographics type2**: Gross Metropolitan Product
- **demographics2 title1**: Thunder Bay
- **demographics2 info1**: Canadian dollar, CA$6.2billion (2020)
- **timezone**: Eastern Time Zone, EST
- **utc offset**: −05:00
- **timezone dst**: EDT
- **utc offset dst**: −04:00
- **postal code type**: Canadian postal code#Forward sortation areas, Forward sortation area
- **postal code**: List of P postal codes of Canada, P7A to P7G, P7J to P7K
- **area code**: Area code 807, 807
- **blank name**: National Topographic System, NTS Map
- **blank1 name**: Geographical Names Board of Canada, GNBC Code
- **blank1 info**: FCWFX