Socio-Economic Indexes
SEIFA – disadvantage
About this topic
SEIFA (Socio-Economic Indexes for Areas) ranks Australian areas by relative advantage and disadvantage using Census data. The ABS constructs each index from a weighted combination of variables including household income, educational attainment, employment status, occupation skill level, and housing conditions.
Scores are relative, not absolute - they show how an area compares to all other areas in Australia, not whether residents are "poor" or "wealthy" in dollar terms. A score of 1000 represents the national average. Areas scoring below 1000 have relatively greater disadvantage; areas above have relatively less.
IRSD measures disadvantage only - it identifies areas where residents have fewer economic and social resources, but cannot distinguish between advantaged and average areas. IRSAD captures both ends of the spectrum, incorporating indicators of advantage such as high income and tertiary qualifications alongside disadvantage indicators.
SEIFA scores are widely used in grant applications, needs assessments, and service planning to identify areas requiring targeted investment or support.
Related topics
Key insight
In 2021, Armadale (C)'s Index of Relative Socio-economic Disadvantage (IRSD) score was 990, placing it in the 59th percentile nationally. Within Armadale (C), scores ranged from Armadale (WA) to Piara Waters.
View
990
Armadale (C) IRSD score
59th percentile nationally
1087.6
Highest local score
Piara Waters
830.1
Lowest local score
Armadale (WA)
Chart view
SEIFA – disadvantage across Western Australia LGAs
Compare the selected index across Western Australia LGAs with the current municipality highlighted.
Nedlands (C)
1114.9
Cambridge (T)
1112.6
Cottesloe (T)
1112
Peppermint Grove (S)
1111.1
East Fremantle (T)
1082.2
Claremont (T)
1081
Subiaco (C)
1078.8
Kent (S)
1072.2
Joondalup (C)
1071.7
Melville (C)
1070
Vincent (C)
1067.5
South Perth (C)
1065.6
Mosman Park (T)
1061.5
Dalwallinu (S)
1056.5
Karratha (C)
1052
Lake Grace (S)
1050.6
Kulin (S)
1045.1
Perenjori (S)
1044.4
Mundaring (S)
1042.3
Perth (C)
1040.4
Exmouth (S)
1037.8
Kalamunda (S)
1033.6
Cockburn (C)
1033.3
Augusta-Margaret River (S)
1031.4
Fremantle (C)
1031.2
Westonia (S)
1030.2
Chittering (S)
1030.2
Victoria Park (T)
1030.1
Williams (S)
1029.7
Serpentine-Jarrahdale (S)
1028.2
Narembeen (S)
1028.1
Victoria Plains (S)
1028
West Arthur (S)
1027.7
Chapman Valley (S)
1027.3
Stirling (C)
1026.6
Jerramungup (S)
1024.9
Mukinbudin (S)
1024.8
Ashburton (S)
1023.6
Corrigin (S)
1023.3
Canning (C)
1023.3
Busselton (C)
1018.6
Bayswater (C)
1017.7
Capel (S)
1015.6
Bassendean (T)
1015.1
Port Hedland (T)
1011.2
Dumbleyung (S)
1009.3
Cunderdin (S)
1008.2
Kalgoorlie/Boulder (C)
1008
Mingenew (S)
1006.8
Dardanup (S)
1005.6
Wanneroo (C)
1005.3
Wandering (S)
1003.7
Denmark (S)
1003.2
Woodanilling (S)
1003.1
Ravensthorpe (S)
1002
Bridgetown-Greenbushes (S)
1000.5
Goomalling (S)
998
Harvey (S)
997.8
Kojonup (S)
996.9
Gnowangerup (S)
995.7
Dandaragan (S)
995.1
Swan (C)
994.8
Boyup Brook (S)
994.8
Esperance (S)
994.8
Wickepin (S)
994
Armadale (C)
990
Rockingham (C)
989.3
Albany (C)
987.3
Donnybrook-Balingup (S)
986.9
Belmont (C)
986.7
Toodyay (S)
986.1
Dowerin (S)
982.7
Koorda (S)
980.4
Mount Marshall (S)
979.9
Nungarin (S)
979
Bruce Rock (S)
978.7
Coorow (S)
978.4
Nannup (S)
978.4
Kondinin (S)
977.6
Boddington (S)
975.7
Gingin (S)
975.1
Gosnells (C)
974.6
Yilgarn (S)
973.5
Cuballing (S)
972.4
Merredin (S)
971
Kwinana (C)
970.5
Christmas Island
970.5
Shark Bay (S)
970.3
York (S)
967.9
Irwin (S)
966.2
Greater Geraldton (C)
965.4
Carnamah (S)
965.4
Cranbrook (S)
964.3
Narrogin (S)
963.8
Quairading (S)
963.5
Wongan-Ballidu (S)
963.5
Three Springs (S)
962.8
Murray (S)
962.5
Broome (S)
961.6
Broomehill-Tambellup (S)
961.1
Manjimup (S)
959.5
Mandurah (C)
959.1
Moora (S)
959.1
Tammin (S)
958.9
Beverley (S)
955.9
Sandstone (S)
954.4
Northampton (S)
953.7
Plantagenet (S)
948.6
Leonora (S)
948.4
Wagin (S)
946.8
Bunbury (C)
944.1
Brookton (S)
944
Morawa (S)
942.9
East Pilbara (S)
939.4
Northam (S)
938.4
Waroona (S)
935.9
Carnarvon (S)
926
Kellerberrin (S)
920.5
Upper Gascoyne (S)
910.1
Trayning (S)
909.4
Collie (S)
908.2
Pingelly (S)
907
Katanning (S)
906.7
Yalgoo (S)
899.7
Wyndham-East Kimberley (S)
899.4
Wyalkatchem (S)
899
Cue (S)
898.3
Coolgardie (S)
897.2
Mount Magnet (S)
863.9
Menzies (S)
860.3
Dundas (S)
855.5
Cocos Islands
850
Meekatharra (S)
847.7
Murchison (S)
833.7
Wiluna (S)
772.6
Laverton (S)
751.1
Derby-West Kimberley (S)
734.1
Halls Creek (S)
540.1
Ngaanyatjarraku (S)
509.4
Data table
SEIFA – disadvantage across Western Australia LGAs table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| Nedlands (C) | 1114.9 | 100 |
| Cambridge (T) | 1112.6 | 100 |
| Cottesloe (T) | 1112 | 100 |
| Peppermint Grove (S) | 1111.1 | 100 |
| East Fremantle (T) | 1082.2 | 96 |
| Claremont (T) | 1081 | 96 |
| Subiaco (C) | 1078.8 | 96 |
| Kent (S) | 1072.2 | 95 |
| Joondalup (C) | 1071.7 | 94 |
| Melville (C) | 1070 | 94 |
| Vincent (C) | 1067.5 | 94 |
| South Perth (C) | 1065.6 | 93 |
| Mosman Park (T) | 1061.5 | 93 |
| Dalwallinu (S) | 1056.5 | 91 |
| Karratha (C) | 1052 | 91 |
| Lake Grace (S) | 1050.6 | 90 |
| Kulin (S) | 1045.1 | 89 |
| Perenjori (S) | 1044.4 | 88 |
| Mundaring (S) | 1042.3 | 88 |
| Perth (C) | 1040.4 | 86 |
| Exmouth (S) | 1037.8 | 86 |
| Kalamunda (S) | 1033.6 | 85 |
| Cockburn (C) | 1033.3 | 85 |
| Augusta-Margaret River (S) | 1031.4 | 85 |
| Fremantle (C) | 1031.2 | 84 |
| Westonia (S) | 1030.2 | 84 |
| Chittering (S) | 1030.2 | 84 |
| Victoria Park (T) | 1030.1 | 83 |
| Williams (S) | 1029.7 | 83 |
| Serpentine-Jarrahdale (S) | 1028.2 | 82 |
| Narembeen (S) | 1028.1 | 82 |
| Victoria Plains (S) | 1028 | 82 |
| West Arthur (S) | 1027.7 | 82 |
| Chapman Valley (S) | 1027.3 | 81 |
| Stirling (C) | 1026.6 | 81 |
| Jerramungup (S) | 1024.9 | 80 |
| Mukinbudin (S) | 1024.8 | 80 |
| Ashburton (S) | 1023.6 | 79 |
| Corrigin (S) | 1023.3 | 79 |
| Canning (C) | 1023.3 | 79 |
| Busselton (C) | 1018.6 | 77 |
| Bayswater (C) | 1017.7 | 76 |
| Capel (S) | 1015.6 | 76 |
| Bassendean (T) | 1015.1 | 76 |
| Port Hedland (T) | 1011.2 | 74 |
| Dumbleyung (S) | 1009.3 | 73 |
| Cunderdin (S) | 1008.2 | 72 |
| Kalgoorlie/Boulder (C) | 1008 | 72 |
| Mingenew (S) | 1006.8 | 71 |
| Dardanup (S) | 1005.6 | 71 |
| Wanneroo (C) | 1005.3 | 71 |
| Wandering (S) | 1003.7 | 70 |
| Denmark (S) | 1003.2 | 69 |
| Woodanilling (S) | 1003.1 | 69 |
| Ravensthorpe (S) | 1002 | 68 |
| Bridgetown-Greenbushes (S) | 1000.5 | 67 |
| Goomalling (S) | 998 | 66 |
| Harvey (S) | 997.8 | 65 |
| Kojonup (S) | 996.9 | 65 |
| Gnowangerup (S) | 995.7 | 65 |
| Dandaragan (S) | 995.1 | 64 |
| Swan (C) | 994.8 | 64 |
| Boyup Brook (S) | 994.8 | 63 |
| Esperance (S) | 994.8 | 63 |
| Wickepin (S) | 994 | 63 |
| Armadale (C) | 990 | 59 |
| Rockingham (C) | 989.3 | 58 |
| Albany (C) | 987.3 | 57 |
| Donnybrook-Balingup (S) | 986.9 | 56 |
| Belmont (C) | 986.7 | 56 |
| Toodyay (S) | 986.1 | 56 |
| Dowerin (S) | 982.7 | 53 |
| Koorda (S) | 980.4 | 52 |
| Mount Marshall (S) | 979.9 | 52 |
| Nungarin (S) | 979 | 51 |
| Bruce Rock (S) | 978.7 | 51 |
| Coorow (S) | 978.4 | 50 |
| Nannup (S) | 978.4 | 50 |
| Kondinin (S) | 977.6 | 50 |
| Boddington (S) | 975.7 | 48 |
| Gingin (S) | 975.1 | 48 |
| Gosnells (C) | 974.6 | 48 |
| Yilgarn (S) | 973.5 | 46 |
| Cuballing (S) | 972.4 | 46 |
| Merredin (S) | 971 | 45 |
| Kwinana (C) | 970.5 | 44 |
| Christmas Island | 970.5 | 44 |
| Shark Bay (S) | 970.3 | 44 |
| York (S) | 967.9 | 43 |
| Irwin (S) | 966.2 | 42 |
| Greater Geraldton (C) | 965.4 | 41 |
| Carnamah (S) | 965.4 | 41 |
| Cranbrook (S) | 964.3 | 40 |
| Narrogin (S) | 963.8 | 40 |
| Quairading (S) | 963.5 | 40 |
| Wongan-Ballidu (S) | 963.5 | 39 |
| Three Springs (S) | 962.8 | 39 |
| Murray (S) | 962.5 | 39 |
| Broome (S) | 961.6 | 38 |
| Broomehill-Tambellup (S) | 961.1 | 38 |
| Manjimup (S) | 959.5 | 37 |
| Mandurah (C) | 959.1 | 36 |
| Moora (S) | 959.1 | 36 |
| Tammin (S) | 958.9 | 36 |
| Beverley (S) | 955.9 | 34 |
| Sandstone (S) | 954.4 | 33 |
| Northampton (S) | 953.7 | 33 |
| Plantagenet (S) | 948.6 | 30 |
| Leonora (S) | 948.4 | 30 |
| Wagin (S) | 946.8 | 28 |
| Bunbury (C) | 944.1 | 27 |
| Brookton (S) | 944 | 27 |
| Morawa (S) | 942.9 | 26 |
| East Pilbara (S) | 939.4 | 24 |
| Northam (S) | 938.4 | 23 |
| Waroona (S) | 935.9 | 23 |
| Carnarvon (S) | 926 | 19 |
| Kellerberrin (S) | 920.5 | 18 |
| Upper Gascoyne (S) | 910.1 | 15 |
| Trayning (S) | 909.4 | 15 |
| Collie (S) | 908.2 | 15 |
| Pingelly (S) | 907 | 15 |
| Katanning (S) | 906.7 | 14 |
| Yalgoo (S) | 899.7 | 12 |
| Wyndham-East Kimberley (S) | 899.4 | 12 |
| Wyalkatchem (S) | 899 | 12 |
| Cue (S) | 898.3 | 12 |
| Coolgardie (S) | 897.2 | 11 |
| Mount Magnet (S) | 863.9 | 9 |
| Menzies (S) | 860.3 | 9 |
| Dundas (S) | 855.5 | 8 |
| Cocos Islands | 850 | 8 |
| Meekatharra (S) | 847.7 | 8 |
| Murchison (S) | 833.7 | 7 |
| Wiluna (S) | 772.6 | 7 |
| Laverton (S) | 751.1 | 6 |
| Derby-West Kimberley (S) | 734.1 | 6 |
| Halls Creek (S) | 540.1 | 3 |
| Ngaanyatjarraku (S) | 509.4 | 2 |
Chart view
Variation within Armadale (C)
See the spread of scores across smaller areas within the municipality.
Piara Waters
1087.6
Percentile 93
Bedfordale
1082.5
Percentile 91
Harrisdale
1074.1
Percentile 87
Karragullen
1068.8
Percentile 85
Roleystone
1068
Percentile 84
Haynes
1045.8
Percentile 70
Hilbert
1033.6
Percentile 62
Mount Nasura
1030.6
Percentile 60
Wungong
1025.8
Percentile 57
Mount Richon
1017.8
Percentile 52
Champion Lakes
1011.6
Percentile 49
Forrestdale
1001.5
Percentile 43
Seville Grove
961.6
Percentile 23
Kelmscott
943.2
Percentile 18
Brookdale (WA)
876
Percentile 6
Camillo
866.6
Percentile 6
Armadale (WA)
830.1
Percentile 4
Data table
Variation within Armadale (C) table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| Piara Waters | 1087.6 | 93 |
| Bedfordale | 1082.5 | 91 |
| Harrisdale | 1074.1 | 87 |
| Karragullen | 1068.8 | 85 |
| Roleystone | 1068 | 84 |
| Haynes | 1045.8 | 70 |
| Hilbert | 1033.6 | 62 |
| Mount Nasura | 1030.6 | 60 |
| Wungong | 1025.8 | 57 |
| Mount Richon | 1017.8 | 52 |
| Champion Lakes | 1011.6 | 49 |
| Forrestdale | 1001.5 | 43 |
| Seville Grove | 961.6 | 23 |
| Kelmscott | 943.2 | 18 |
| Brookdale (WA) | 876 | 6 |
| Camillo | 866.6 | 6 |
| Armadale (WA) | 830.1 | 4 |