Preliminary 2021 Census Metropolitan Area and Census Agglomeration Delineation
Table 18
History of entries and deletes of 2016 and preliminary 2021 census agglomerations

Table 18
History of entries and deletes of 2016 and preliminary 2021 census agglomerations
Table summary
This table displays the results of History of entries and deletes of 2016 and preliminary 2021 census agglomerations. The information is grouped by CA Name (appearing as row headers), CA Code, Year of becoming CA and Notes (appearing as column headers).
CA Name CA Code Year of becoming CA Notes
Alma (Que.) 410 1986 Note ...: not applicable
Amos (Que.) 481 2001, 2021 The CA was retired in 2016 and will regain CA status in 2021.
Arnprior (Ont.) 507 1976, 2016 The CA was retired in 1981 and regained CA status in 2016. It should merge with the CMA of Ottawa - Gatineau in 2021.
Baie-Comeau (Que.) 406 1976 ... 
Bathurst (N.B.) 328 1976 Note ...: not applicable
Bay Roberts (N.L.) 005 1976, 2006 The CA was retired in 1981 and regained CA status in 2006. It will be retired again in 2021.
Brandon (Man.) 610 1986 Note ...: not applicable
Brockville (Ont.) 512 1976 Note ...: not applicable
Brooks (Alta.) 806 2001 Note ...: not applicable
Campbell River (B.C.) 944 1986 Note ...: not applicable
Campbellton (N.B./Que.) 330 1971 ... 
Camrose (Alta.) 833 1986 Note ...: not applicable
Canmore (Alta.) 828 2006 ... 
Cape Breton (N.S.) 225 1951 The CA's name was Sydney-Glace Bay from 1951 to 1966. It was split into two CAs, Sydney and Sydney Mines, in 1971. They were merged back to one CA, Sydney, in 1986. It was renamed Cape Breton in 1996.
Carleton Place (Ont.) 509 2016 The CA should merge with the CMA of Ottawa - Gatineau in 2021.
Centre Wellington (Ont.) 531 1971, 2006 The CA's name was Fergus from 1971 to 1981. It was retired in 1986 and regained CA status as Centre Wellington in 2006.
Charlottetown (P.E.I.) 105 1971 Note ...: not applicable
Chatham-Kent (Ont.) 556 1981 The CA's name was Chatham from 1981 to 1996. It now covers the former CA of Wallaceburg (1986-1991).
Cobourg (Ont.) 527 1971 ... 
Cold Lake (Alta.) 845 1991 The CA's name was Grand Centre from 1991 to 1996. It will be retired in 2021.
Collingwood (Ont.) 567 1986 ... 
Corner Brook (N.L.) 015 1981 Note ...: not applicable
Cornwall (Ont.) 501 1981 ... 
Courtenay (B.C.) 943 1971 ... 
Cowansville (Que.) 437 1986 ...  
Cranbrook (B.C.) 905 1986 ...  
Dawson Creek (B.C.) 975 1986 ...  
Dolbeau-Mistassini (Que.) 411 1971 The CA's name was Dolbeau from 1971 to 1996.
Drummondville (Que.) 447 1961 ...  
Duncan (B.C.) 937 1976, 1986 The CA was retired in 1981 and regained CA status in 1986.
Edmundston (N.B.) 335 1976 ...  
Elliot Lake (Ont.) 582 1986 ...  
Essa (Ont.) 563 2021 ...  
Estevan (Sask.) 750 1991 ...  
Fort St. John (B.C.) 977 1986 ...  
Gander (N.L.) 011 1986, 2016 The CA was retired in 2006 and regained CA status in 2016.
Granby (Que.) 450 1971 ...  
Grand Falls-Windsor (N.L.) 010 1971 The CA's name was Grand Falls from 1971 to 1986.
Grande Prairie (Alta.) 850 1986 ...  
Hawkesbury (Ont./Que.) 502 1971 ...  
High River (Alta.) 821 2011 ...  
Ingersoll (Ont.) 533 2006 ...  
Joliette (Que.) 456 1971 ...  
Kawartha Lakes (Ont.) 530 1981 The CA's name was Lindsay from 1981 to 1996.
Kenora (Ont.) 598 1971 ...  
Kentville (N.S.) 210 1971, 1991 The CA was retired in 1986 and regained CA status in 1991.
Lachute (Que.) 468 1971 ...  
Lacombe (Alta.) 832 2011 ...  
Ladysmith (B.C.) 936 2021 ...  
Leamington (Ont.) 557 1981 The CA now covers the former CA of Kingsville (1976). The CA should merge with the CMA of Windsor in 2021.
Lloydminster (Alta./Sask.) 840 1986 ...  
Matane (Que.) 403 1986 ...  
Medicine Hat (Alta.) 805 1971 ...  
Midland (Ont.) 571 1971 ...  
Miramichi (N.B.) 329 1971, 2006 The CA's name was Newcastle from 1971 to 1976. It was retired in 1981 and regained CA status as Miramichi in 2006.
Moose Jaw (Sask.) 715 1976 ...  
Nelson (B.C.) 907 2016 ...  
New Glasgow (N.S.) 220 1971 ...  
Norfolk (Ont.) 547 1986 The CA's name was Simcoe from 1986 to 1996.
North Battleford (Sask.) 735 1971 ...  
North Bay (Ont.) 575 1976 ...  
Okotoks (Alta.) 820 2006 ...  
Orillia (Ont.) 569 1981 ...  
Owen Sound (Ont.) 566 1981 ...  
Parksville (B.C.) 939 2001 ...  
Pembroke (Ont.) 515 1971 ...  
Penticton (B.C.) 913 1986 ...  
Petawawa (Ont.) 516 1971, 2001 The CA was retired in 1986 and regained CA status in 2001.
Port Alberni (B.C.) 940 1971 ...  
Port Hope (Ont.) 528 1991 The CA's name became Port Hope and Hope in 2001 and was changed back to Port Hope in 2006.
Portage la Prairie (Man.) 607 1981 ...  
Powell River (B.C.) 945 1981 ...  
Prince Albert (Sask.) 745 1981 ...  
Prince George (B.C.) 970 1971, 1981 The CA was retired in 1976 and regained CA status in 1981.
Prince Rupert (B.C.) 955 1971, 1981 The CA was retired in 1976 and regained CA status in 1981.
Quesnel (B.C.) 952 1986 ...  
Rimouski (Que.) 404 1971 ...  
Rivière-du-Loup (Que.) 405 1981 ...  
Rouyn-Noranda (Que.) 485 1971 The CA's name was Rouyn from 1971 to 1986.
Sainte-Agathe-des-Monts - Val-David (Que.) 467 2021 ...  
Sainte-Marie (Que.) 423 2016 ...  
Saint-Georges (Que.) 428 1971 ...  
Saint-Hyacinthe (Que.) 452 1971 ...  
Salaberry-de-Valleyfield (Que.) 465 1961 The CA's name was Valleyfield from 1961 to 1971 and Valleyfield, Salaberry-de in 1976.
Salmon Arm (B.C.) 920 2006 ...  
Sarnia (Ont.) 562 1951 The CA's name became Sarnia - Clearwater in 1991 and was changed back to Sarnia in 1996.
Sault Ste. Marie (Ont.) 590 1951 ...  
Sept-Îles (Que.) 412 1981 ...  
Shawinigan (Que.) 444 1951 The CA's name was Shawinigan Falls from 1951 to 1956.
Sorel-Tracy (Que.) 454 1971 The CA's name was Sorel from 1971 to 1996.
Squamish (B.C.) 934 2001 ...  
Steinbach (Man.) 605 2011 ...  
Stratford (Ont.) 553 1981 ...  
Strathmore (Alta.) 826 2011 ...  
Summerside (P.E.I.) 110 1971 ...  
Swift Current (Sask.) 720 1981 ...  
Sylvan Lake (Alta.) 831 2011 ...  
Terrace (B.C.) 965 1971 ...  
Thetford Mines (Que.) 430 1971 ...  
Thompson (Man.) 640 1981 ...  
Tillsonburg (Ont.) 546 1986 ...  
Timmins (Ont.) 586 1956, 1986 The CA was retired in 1976 and regained CA status in 1986.
Trail - Fruitvale (B.C.) 910 1971, 2021 The CA's name was Trail from 1971 to 1986. It was retired in 1991 and will regain CA status as Trail - Fruitvale in 2021.
Truro (N.S.) 215 1971 ...  
Val-d'Or (Que.) 480 1971 ...  
Vernon (B.C.) 918 1976 ...  
Victoriaville (Que.) 440 1971 ...  
Wasaga Beach (Ont.) 565 2016 ...  
Wetaskiwin (Alta.) 865 1991 ...  
Weyburn (Sask.) 755 1991, 2016 The CA was retired in 1996 and regained CA status in 2016.
Whitehorse (Y.T.) 990 1986 ...  
Williams Lake (B.C.) 950 1971, 1986 The CA was retired in 1981 and regained CA status in 1986.
Winkler (Man.) 603 2016 ...  
Wood Buffalo (Alta.) 860 1986 The CA's name was Fort McMurray from 1986 to 1991.
Woodstock (Ont.) 544 1986 ...  
Yellowknife (N.W.T.) 995 1991 ...  
Yorkton (Sask.) 710 1986 ...  
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