|
| Local Government Area | Estimated resident population | Median age | Median age | Median age |
 | at June 2006 (preliminary) | at June 1996 | at June 2001 | at June 2006 (preliminary) |
|
| Albany (C) | 33 144 | 35.7 | 37.3 | 39.5 |
| Armadale (C) | 52 747 | 31.2 | 33.8 | 35.7 |
| Ashburton (S) | 6 509 | 28.0 | 30.2 | 31.0 |
| Augusta-Margaret River (S) | 10 942 | 33.8 | 35.2 | 37.6 |
| Bassendean (T) | 14 166 | 35.4 | 37.2 | 38.6 |
| Bayswater (C) | 58 591 | 35.3 | 37.1 | 37.9 |
| Belmont (C) | 31 874 | 36.0 | 36.3 | 36.8 |
| Beverley (S) | 1 638 | 39.9 | 43.6 | 48.3 |
| Boddington (S) | 1 464 | 30.0 | 35.1 | 39.3 |
| Boyup Brook (S) | 1 552 | 36.9 | 40.1 | 43.6 |
| Bridgetown-Greenbushes (S) | 4 119 | 35.3 | 39.0 | 43.7 |
| Brookton (S) | 1 061 | 35.6 | 37.9 | 42.4 |
| Broome (S) | 14 436 | 28.4 | 29.6 | 31.4 |
| Broomehill (S) | 499 | 34.6 | 34.7 | 36.9 |
| Bruce Rock (S) | 1 017 | 35.5 | 40.2 | 42.3 |
| Bunbury (C) | 31 421 | 33.3 | 34.9 | 37.3 |
| Busselton (S) | 26 638 | 35.8 | 36.6 | 38.5 |
| Cambridge (T) | 25 168 | 37.9 | 38.8 | 39.2 |
| Canning (C) | 81 460 | 33.7 | 34.7 | 35.0 |
| Capel (S) | 10 630 | 33.6 | 35.6 | 34.9 |
| Carnamah (S) | 787 | 31.8 | 32.8 | 36.5 |
| Carnarvon (S) | 6 159 | 31.5 | 33.1 | 35.5 |
| Chapman Valley (S) | 957 | 35.1 | 37.5 | 40.4 |
| Chittering (S) | 3 683 | 35.2 | 38.3 | 40.1 |
| Claremont (T) | 9 504 | 38.8 | 40.7 | 42.0 |
|
| Local Government Area | Estimated resident population | Median age | Median age | Median age |
 | at June 2006 (preliminary) | at June 1996 | at June 2001 | at June 2006 (preliminary) |
|
| Cockburn (C) | 78 203 | 31.6 | 33.1 | 34.6 |
| Collie (S) | 9 104 | 33.1 | 36.1 | 37.7 |
| Coolgardie (S) | 4 053 | 27.7 | 29.4 | 30.5 |
| Coorow (S) | 1 256 | 31.7 | 35.9 | 41.2 |
| Corrigin (S) | 1 207 | 36.6 | 39.6 | 39.8 |
| Cottesloe (T) | 7 821 | 37.1 | 39.4 | 40.1 |
| Cranbrook (S) | 1 132 | 34.9 | 37.9 | 39.5 |
| Cuballing (S) | 811 | 35.8 | 38.8 | 41.6 |
| Cue (S) | 359 | 32.9 | 34.8 | 36.9 |
| Cunderdin (S) | 1 308 | 31.9 | 34.1 | 38.4 |
| Dalwallinu (S) | 1 443 | 30.3 | 32.4 | 36.3 |
| Dandaragan (S) | 3 034 | 35.4 | 38.4 | 41.3 |
| Dardanup (S) | 10 777 | 31.9 | 32.4 | 35.1 |
| Denmark (S) | 4 809 | 37.7 | 40.0 | 44.6 |
| Derby-West Kimberley (S) | 7 511 | 25.8 | 26.6 | 27.7 |
| Donnybrook-Balingup (S) | 5 000 | 35.2 | 38.2 | 41.5 |
| Dowerin (S) | 740 | 34.3 | 35.5 | 37.6 |
| Dumbleyung (S) | 671 | 33.2 | 37.8 | 39.3 |
| Dundas (S) | 1 153 | 31.0 | 34.9 | 36.0 |
| East Fremantle (T) | 7 101 | 37.1 | 38.5 | 40.1 |
| East Pilbara (S) | 7 160 | 28.3 | 29.8 | 30.6 |
| Esperance (S) | 13 778 | 31.9 | 34.4 | 36.0 |
| Exmouth (S) | 2 172 | 32.8 | 34.7 | 37.7 |
| Fremantle (C) | 26 312 | 37.1 | 39.0 | 41.0 |
| Geraldton (C) | 20 233 | 31.7 | 34.0 | 35.6 |
|
| Local Government Area | Estimated resident population | Median age | Median age | Median age |
 | at June 2006 (preliminary) | at June 1996 | at June 2001 | at June 2006 (preliminary) |
|
| Gingin (S) | 4 584 | 37.6 | 40.0 | 43.6 |
| Gnowangerup (S) | 1 454 | 31.9 | 32.9 | 35.1 |
| Goomalling (S) | 984 | 35.5 | 38.0 | 39.8 |
| Gosnells (C) | 95 680 | 30.7 | 32.5 | 33.6 |
| Greenough (S) | 14 789 | 30.6 | 32.4 | 34.6 |
| Halls Creek (S) | 3 714 | 24.4 | 23.2 | 25.1 |
| Harvey (S) | 20 461 | 32.1 | 34.3 | 36.7 |
| Irwin (S) | 3 240 | 36.0 | 38.3 | 42.2 |
| Jerramungup (S) | 1 199 | 32.5 | 35.7 | 38.4 |
| Joondalup (C) | 157 368 | 32.6 | 35.0 | 36.8 |
| Kalamunda (S) | 51 861 | 34.0 | 36.5 | 37.5 |
| Kalgoorlie/Boulder (C) | 30 399 | 27.8 | 29.9 | 30.8 |
| Katanning (S) | 4 511 | 30.6 | 33.6 | 35.0 |
| Kellerberrin (S) | 1 246 | 35.6 | 39.3 | 42.3 |
| Kent (S) | 604 | 30.6 | 34.1 | 35.6 |
| Kojonup (S) | 2 271 | 33.3 | 35.9 | 39.0 |
| Kondinin (S) | 1 045 | 32.3 | 35.1 | 34.6 |
| Koorda (S) | 452 | 35.1 | 38.9 | 43.1 |
| Kulin (S) | 937 | 33.8 | 37.3 | 37.4 |
| Kwinana (T) | 24 247 | 30.4 | 32.2 | 33.3 |
| Lake Grace (S) | 1 560 | 32.6 | 35.5 | 38.1 |
| Laverton (S) | 822 | 27.5 | 31.0 | 35.3 |
| Leonora (S) | 1 529 | 28.7 | 31.6 | 31.7 |
| Mandurah (C) | 58 457 | 36.7 | 40.0 | 43.0 |
| Manjimup (S) | 9 773 | 32.4 | 35.5 | 38.9 |
|
| Local Government Area | Estimated resident population | Median age | Median age | Median age |
 | at June 2006 (preliminary) | at June 1996 | at June 2001 | at June 2006 (preliminary) |
|
| Meekatharra (S) | 1 296 | 29.2 | 30.1 | 30.9 |
| Melville (C) | 99 151 | 36.8 | 38.5 | 39.9 |
| Menzies (S) | 249 | 32.5 | 32.7 | 38.8 |
| Merredin (S) | 3 436 | 31.3 | 32.9 | 36.4 |
| Mingenew (S) | 501 | 32.6 | 33.1 | 37.0 |
| Moora (S) | 2 591 | 32.3 | 33.1 | 36.2 |
| Morawa (S) | 888 | 32.0 | 32.8 | 35.8 |
| Mosman Park (T) | 8 820 | 37.0 | 37.7 | 38.5 |
| Mount Magnet (S) | 496 | 29.1 | 30.7 | 35.9 |
| Mount Marshall (S) | 656 | 32.4 | 34.7 | 34.4 |
| Mukinbudin (S) | 608 | 33.2 | 34.9 | 38.7 |
| Mullewa (S) | 1 011 | 27.2 | 28.8 | 31.3 |
| Mundaring (S) | 36 737 | 34.6 | 37.2 | 38.9 |
| Murchison (S) | 127 | 28.2 | 27.0 | 33.3 |
| Murray (S) | 12 554 | 37.7 | 41.2 | 43.3 |
| Nannup (S) | 1 260 | 36.3 | 40.6 | 45.3 |
| Narembeen (S) | 949 | 34.2 | 38.8 | 40.7 |
| Narrogin (T) | 4 498 | 30.7 | 32.5 | 34.9 |
| Narrogin (S) | 869 | 30.1 | 37.8 | 37.0 |
| Nedlands (C) | 21 784 | 38.6 | 39.3 | 40.1 |
| Ngaanyatjarraku (S) | 1 592 | 24.8 | 26.1 | 27.0 |
| Northam (T) | 6 412 | 33.6 | 35.4 | 36.4 |
| Northam (S) | 3 959 | 35.0 | 37.4 | 41.5 |
| Northampton (S) | 3 360 | 36.4 | 39.4 | 43.0 |
| Nungarin (S) | 256 | 35.7 | 37.9 | 36.7 |
|
| Local Government Area | Estimated resident population | Median age | Median age | Median age |
 | at June 2006 (preliminary) | at June 1996 | at June 2001 | at June 2006 (preliminary) |
|
| Peppermint Grove (S) | 1 683 | 34.6 | 37.0 | 38.7 |
| Perenjori (S) | 564 | 33.5 | 35.1 | 38.5 |
| Perth (C) | 12 549 | 33.6 | 33.1 | 34.1 |
| Pingelly (S) | 1 249 | 36.3 | 39.1 | 42.7 |
| Plantagenet (S) | 4 704 | 35.7 | 38.1 | 40.9 |
| Port Hedland (T) | 12 993 | 28.8 | 29.5 | 31.4 |
| Quairading (S) | 1 087 | 34.9 | 38.5 | 43.3 |
| Ravensthorpe (S) | 2 029 | 34.2 | 36.8 | 38.3 |
| Rockingham (C) | 87 541 | 32.4 | 34.2 | 35.2 |
| Roebourne (S) | 17 671 | 28.2 | 30.0 | 31.1 |
| Sandstone (S) | 130 | 36.8 | 43.5 | 42.3 |
| Serpentine-Jarrahdale (S) | 13 392 | 33.9 | 35.4 | 37.4 |
| Shark Bay (S) | 921 | 38.0 | 39.2 | 44.5 |
| South Perth (C) | 40 986 | 34.7 | 35.6 | 36.1 |
| Stirling (C) | 186 506 | 35.1 | 36.5 | 37.2 |
| Subiaco (C) | 17 494 | 33.2 | 34.9 | 35.9 |
| Swan (C) | 97 251 | 30.0 | 31.9 | 33.6 |
| Tambellup (S) | 700 | 33.5 | 32.9 | 32.9 |
| Tammin (S) | 420 | 35.3 | 36.0 | 38.1 |
| Three Springs (S) | 713 | 33.5 | 37.8 | 37.3 |
| Toodyay (S) | 4 309 | 36.8 | 40.1 | 43.3 |
| Trayning (S) | 411 | 35.0 | 38.8 | 42.6 |
| Upper Gascoyne (S) | 328 | 30.7 | 30.2 | 25.8 |
| Victoria Park (T) | 29 495 | 34.1 | 34.9 | 35.0 |
| Victoria Plains (S) | 942 | 34.8 | 35.3 | 39.1 |
|
| Local Government Area | Estimated resident population | Median age | Median age | Median age |
 | at June 2006 (preliminary) | at June 1996 | at June 2001 | at June 2006 (preliminary) |
|
| Vincent (T) | 28 505 | 33.5 | 34.9 | 35.1 |
| Wagin (S) | 1 953 | 34.8 | 38.5 | 42.3 |
| Wandering (S) | 371 | 33.9 | 38.0 | 43.3 |
| Wanneroo (C) | 115 513 | 29.9 | 31.7 | 33.0 |
| Waroona (S) | 3 639 | 34.8 | 37.2 | 39.9 |
| West Arthur (S) | 890 | 34.8 | 38.6 | 39.3 |
| Westonia (S) | 225 | 34.3 | 38.1 | 36.7 |
| Wickepin (S) | 746 | 34.5 | 38.2 | 39.6 |
| Williams (S) | 924 | 33.9 | 38.3 | 42.3 |
| Wiluna (S) | 770 | 29.1 | 30.7 | 32.3 |
| Wongan-Ballidu (S) | 1 477 | 32.4 | 34.3 | 37.9 |
| Woodanilling (S) | 421 | 33.1 | 34.4 | 36.8 |
| Wyalkatchem (S) | 601 | 37.7 | 38.1 | 42.1 |
| Wyndham-East Kimberley (S) | 7 344 | 28.0 | 29.1 | 30.3 |
| Yalgoo (S) | 271 | 30.5 | 36.1 | 39.4 |
| Yilgarn (S) | 1 506 | 29.9 | 33.1 | 36.8 |
| York (S) | 3 260 | 38.0 | 40.6 | 45.0 |
| Unincorporated WA | 0 | . | . | . |
 |  |  |  |  |
| Total Western Australia | 2 059 045 | 33.1 | 34.9 | 36.2 |
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