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, Cambridge (T)'s Index of Relative Socio-economic Disadvantage (IRSD) score was 1112.6, placing it in the 100th percentile nationally. Within Cambridge (T), scores ranged from Wembley (part) to City Beach.
View
1112.6
Cambridge (T) IRSD score
100th percentile nationally
1127.4
Highest local score
City Beach
1071
Lowest local score
Wembley (part)
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 Cambridge (T)
See the spread of scores across smaller areas within the municipality.
City Beach
1127.4
Percentile 100
Floreat (part)
1124.7
Percentile 100
West Leederville
1091.3
Percentile 94
Wembley (part)
1071
Percentile 86
Data table
Variation within Cambridge (T) table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| City Beach | 1127.4 | 100 |
| Floreat (part) | 1124.7 | 100 |
| West Leederville | 1091.3 | 94 |
| Wembley (part) | 1071 | 86 |