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, Torres Strait Island (R)'s Index of Relative Socio-economic Disadvantage (IRSD) score was 649.5, placing it in the 6th percentile nationally. Within Torres Strait Island (R), scores ranged from Boigu Island to Poruma Island.
View
649.5
Torres Strait Island (R) IRSD score
6th percentile nationally
755.1
Highest local score
Poruma Island
470
Lowest local score
Boigu Island
Chart view
SEIFA – disadvantage across Queensland LGAs
Compare the selected index across Queensland LGAs with the current municipality highlighted.
Weipa (T)
1058.1
Brisbane (C)
1045.2
Noosa (S)
1029.5
Redland (C)
1023.9
Sunshine Coast (R)
1021.7
Gold Coast (C)
1018.6
McKinlay (S)
1014
Isaac (R)
1012
Richmond (S)
1009.2
Livingstone (S)
1004.8
Longreach (R)
1002.7
Barcaldine (R)
1002.1
Mackay (R)
999.3
Quilpie (S)
997.9
Central Highlands (R) (Qld)
995.7
Maranoa (R)
995.2
Winton (S)
993.3
Moreton Bay (R)
991.8
Banana (S)
991.6
Townsville (C)
989.6
Bulloo (S)
989.6
Barcoo (S)
987.9
Scenic Rim (R)
985.8
Etheridge (S)
982.4
Cairns (R)
981.1
Toowoomba (R)
979.4
Douglas (S)
978.9
Mount Isa (C)
971.9
Flinders (S) (Qld)
970.1
Whitsunday (R)
969.4
Burdekin (S)
965.8
Cloncurry (S)
965.1
Goondiwindi (R)
965
Blackall-Tambo (R)
961.1
Ipswich (C)
957.9
Tablelands (R)
955.3
Gladstone (R)
954.1
Hinchinbrook (S)
953.7
Diamantina (S)
951.8
Rockhampton (R)
948.8
Murweh (S)
948.4
Lockyer Valley (R)
948
Western Downs (R)
946
Logan (C)
944
Somerset (R)
943.9
Balonne (S)
943.5
Burke (S)
941.3
Southern Downs (R)
938.9
Mareeba (S)
937.4
Charters Towers (R)
933.3
Gympie (R)
930.5
Cassowary Coast (R)
929.4
Bundaberg (R)
924.5
Fraser Coast (R)
914.8
Cook (S)
913
South Burnett (R)
907
Torres (S)
904.3
North Burnett (R)
902.5
Boulia (S)
877.5
Croydon (S)
875.5
Paroo (S)
865.7
Carpentaria (S)
850.8
Northern Peninsula Area (R)
702.1
Torres Strait Island (R)
649.5
Hope Vale (S)
630.8
Napranum (S)
623.2
Lockhart River (S)
621.6
Mornington (S)
609
Palm Island (S)
566.9
Mapoon (S)
566.8
Pormpuraaw (S)
547.2
Doomadgee (S)
533.8
Kowanyama (S)
528.1
Yarrabah (S)
512.5
Wujal Wujal (S)
510.3
Aurukun (S)
501.5
Cherbourg (S)
498.1
Woorabinda (S)
492.5
Data table
SEIFA – disadvantage across Queensland LGAs table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| Weipa (T) | 1058.1 | 92 |
| Brisbane (C) | 1045.2 | 89 |
| Noosa (S) | 1029.5 | 83 |
| Redland (C) | 1023.9 | 80 |
| Sunshine Coast (R) | 1021.7 | 78 |
| Gold Coast (C) | 1018.6 | 77 |
| McKinlay (S) | 1014 | 75 |
| Isaac (R) | 1012 | 74 |
| Richmond (S) | 1009.2 | 73 |
| Livingstone (S) | 1004.8 | 70 |
| Longreach (R) | 1002.7 | 69 |
| Barcaldine (R) | 1002.1 | 68 |
| Mackay (R) | 999.3 | 67 |
| Quilpie (S) | 997.9 | 66 |
| Central Highlands (R) (Qld) | 995.7 | 64 |
| Maranoa (R) | 995.2 | 64 |
| Winton (S) | 993.3 | 62 |
| Moreton Bay (R) | 991.8 | 61 |
| Banana (S) | 991.6 | 61 |
| Townsville (C) | 989.6 | 59 |
| Bulloo (S) | 989.6 | 59 |
| Barcoo (S) | 987.9 | 57 |
| Scenic Rim (R) | 985.8 | 55 |
| Etheridge (S) | 982.4 | 53 |
| Cairns (R) | 981.1 | 52 |
| Toowoomba (R) | 979.4 | 51 |
| Douglas (S) | 978.9 | 51 |
| Mount Isa (C) | 971.9 | 45 |
| Flinders (S) (Qld) | 970.1 | 44 |
| Whitsunday (R) | 969.4 | 44 |
| Burdekin (S) | 965.8 | 42 |
| Cloncurry (S) | 965.1 | 41 |
| Goondiwindi (R) | 965 | 40 |
| Blackall-Tambo (R) | 961.1 | 38 |
| Ipswich (C) | 957.9 | 35 |
| Tablelands (R) | 955.3 | 34 |
| Gladstone (R) | 954.1 | 33 |
| Hinchinbrook (S) | 953.7 | 33 |
| Diamantina (S) | 951.8 | 31 |
| Rockhampton (R) | 948.8 | 30 |
| Murweh (S) | 948.4 | 29 |
| Lockyer Valley (R) | 948 | 29 |
| Western Downs (R) | 946 | 28 |
| Logan (C) | 944 | 27 |
| Somerset (R) | 943.9 | 27 |
| Balonne (S) | 943.5 | 26 |
| Burke (S) | 941.3 | 25 |
| Southern Downs (R) | 938.9 | 23 |
| Mareeba (S) | 937.4 | 23 |
| Charters Towers (R) | 933.3 | 22 |
| Gympie (R) | 930.5 | 21 |
| Cassowary Coast (R) | 929.4 | 21 |
| Bundaberg (R) | 924.5 | 19 |
| Fraser Coast (R) | 914.8 | 17 |
| Cook (S) | 913 | 16 |
| South Burnett (R) | 907 | 14 |
| Torres (S) | 904.3 | 13 |
| North Burnett (R) | 902.5 | 13 |
| Boulia (S) | 877.5 | 10 |
| Croydon (S) | 875.5 | 10 |
| Paroo (S) | 865.7 | 9 |
| Carpentaria (S) | 850.8 | 8 |
| Northern Peninsula Area (R) | 702.1 | 6 |
| Torres Strait Island (R) | 649.5 | 6 |
| Hope Vale (S) | 630.8 | 5 |
| Napranum (S) | 623.2 | 5 |
| Lockhart River (S) | 621.6 | 5 |
| Mornington (S) | 609 | 5 |
| Palm Island (S) | 566.9 | 4 |
| Mapoon (S) | 566.8 | 4 |
| Pormpuraaw (S) | 547.2 | 4 |
| Doomadgee (S) | 533.8 | 3 |
| Kowanyama (S) | 528.1 | 3 |
| Yarrabah (S) | 512.5 | 2 |
| Wujal Wujal (S) | 510.3 | 2 |
| Aurukun (S) | 501.5 | 2 |
| Cherbourg (S) | 498.1 | 2 |
| Woorabinda (S) | 492.5 | 1 |
Chart view
Variation within Torres Strait Island (R)
See the spread of scores across smaller areas within the municipality.
Poruma Island
755.1
Percentile 2
Keriri Island
738.4
Percentile 2
Iama Island
736.5
Percentile 2
Moa Island
702.3
Percentile 2
Mer Island
689.9
Percentile 2
Ugar Island
687.6
Percentile 2
Badu Island
664.1
Percentile 2
Erub Island
653.5
Percentile 2
Dauan Island
632.3
Percentile 2
Masig Island
614.7
Percentile 1
Mabuiag Island
606.1
Percentile 1
Warraber Islet
585.4
Percentile 1
Saibai Island
529.2
Percentile 1
Boigu Island
470
Percentile 1
Data table
Variation within Torres Strait Island (R) table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| Poruma Island | 755.1 | 2 |
| Keriri Island | 738.4 | 2 |
| Iama Island | 736.5 | 2 |
| Moa Island | 702.3 | 2 |
| Mer Island | 689.9 | 2 |
| Ugar Island | 687.6 | 2 |
| Badu Island | 664.1 | 2 |
| Erub Island | 653.5 | 2 |
| Dauan Island | 632.3 | 2 |
| Masig Island | 614.7 | 1 |
| Mabuiag Island | 606.1 | 1 |
| Warraber Islet | 585.4 | 1 |
| Saibai Island | 529.2 | 1 |
| Boigu Island | 470 | 1 |