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, Onkaparinga (C)'s Index of Relative Socio-economic Disadvantage (IRSD) score was 987.5, placing it in the 57th percentile nationally. Within Onkaparinga (C), scores ranged from Christie Downs to Chandlers Hill.
View
987.5
Onkaparinga (C) IRSD score
57th percentile nationally
1117
Highest local score
Chandlers Hill
803.2
Lowest local score
Christie Downs
Chart view
SEIFA – disadvantage across South Australia LGAs
Compare the selected index across South Australia LGAs with the current municipality highlighted.
Burnside (C)
1082.7
Adelaide Hills (DC)
1081.3
Walkerville (M)
1075.5
Mitcham (C)
1074.9
Unley (C)
1067.2
Prospect (C)
1054.1
Roxby Downs (M)
1047.7
Holdfast Bay (C)
1046.9
Norwood Payneham St Peters (C)
1038.5
Mount Barker (DC)
1037
Lower Eyre Peninsula (DC)
1032.7
Tea Tree Gully (C)
1030.4
Light (RegC)
1027
Grant (DC)
1025.7
Robe (DC)
1022.9
Campbelltown (C) (SA)
1021.4
Kimba (DC)
1019.6
West Torrens (C)
1015
Barossa (DC)
1014.3
Wudinna (DC)
1009.3
Marion (C)
1008
Orroroo/Carrieton (DC)
1005.9
Adelaide (C)
1002.2
Charles Sturt (C)
1000.7
Streaky Bay (DC)
1000.3
Clare and Gilbert Valleys (DC)
997.6
Southern Mallee (DC)
996.8
Tumby Bay (DC)
993.5
Kangaroo Island (DC)
991.5
Cleve (DC)
989.4
Adelaide Plains
987.9
Alexandrina (DC)
987.8
Onkaparinga (C)
987.5
Tatiara (DC)
981.6
Northern Areas (DC)
979.2
Yankalilla (DC)
977.8
Naracoorte and Lucindale (DC)
977.6
Kingston (DC) (SA)
976.9
Mount Remarkable (DC)
974.2
Victor Harbor (C)
962.3
Gawler (T)
960.1
Franklin Harbour (DC)
959
Elliston (DC)
959
Loxton Waikerie (DC)
957.8
Karoonda East Murray (DC)
956.5
Port Adelaide Enfield (C)
952.6
Yorke Peninsula (DC)
951.6
Barunga West (DC)
950.1
Port Lincoln (C)
948.2
Goyder (DC)
946.6
Ceduna (DC)
943.2
Wattle Range (DC)
941.7
The Coorong (DC)
938.6
Flinders Ranges (DC)
933
Mount Gambier (C)
924.1
Copper Coast (DC)
923.7
Renmark Paringa (DC)
922.6
Wakefield (DC)
921
Mid Murray (DC)
914.5
Berri and Barmera (DC)
906.9
Unincorporated SA
904.8
Salisbury (C)
903.7
Murray Bridge (RC)
891
Port Pirie City and Dists (M)
889.4
Port Augusta (C)
888.6
Whyalla (C)
883
Coober Pedy (DC)
868.3
Playford (C)
852.4
Peterborough (DC)
773.1
Maralinga Tjarutja (AC)
643.9
Anangu Pitjantjatjara (AC)
496.3
Data table
SEIFA – disadvantage across South Australia LGAs table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| Burnside (C) | 1082.7 | 97 |
| Adelaide Hills (DC) | 1081.3 | 96 |
| Walkerville (M) | 1075.5 | 95 |
| Mitcham (C) | 1074.9 | 95 |
| Unley (C) | 1067.2 | 94 |
| Prospect (C) | 1054.1 | 91 |
| Roxby Downs (M) | 1047.7 | 90 |
| Holdfast Bay (C) | 1046.9 | 90 |
| Norwood Payneham St Peters (C) | 1038.5 | 86 |
| Mount Barker (DC) | 1037 | 85 |
| Lower Eyre Peninsula (DC) | 1032.7 | 85 |
| Tea Tree Gully (C) | 1030.4 | 84 |
| Light (RegC) | 1027 | 81 |
| Grant (DC) | 1025.7 | 80 |
| Robe (DC) | 1022.9 | 79 |
| Campbelltown (C) (SA) | 1021.4 | 78 |
| Kimba (DC) | 1019.6 | 77 |
| West Torrens (C) | 1015 | 75 |
| Barossa (DC) | 1014.3 | 75 |
| Wudinna (DC) | 1009.3 | 73 |
| Marion (C) | 1008 | 72 |
| Orroroo/Carrieton (DC) | 1005.9 | 71 |
| Adelaide (C) | 1002.2 | 68 |
| Charles Sturt (C) | 1000.7 | 67 |
| Streaky Bay (DC) | 1000.3 | 67 |
| Clare and Gilbert Valleys (DC) | 997.6 | 65 |
| Southern Mallee (DC) | 996.8 | 65 |
| Tumby Bay (DC) | 993.5 | 62 |
| Kangaroo Island (DC) | 991.5 | 61 |
| Cleve (DC) | 989.4 | 58 |
| Adelaide Plains | 987.9 | 57 |
| Alexandrina (DC) | 987.8 | 57 |
| Onkaparinga (C) | 987.5 | 57 |
| Tatiara (DC) | 981.6 | 53 |
| Northern Areas (DC) | 979.2 | 51 |
| Yankalilla (DC) | 977.8 | 50 |
| Naracoorte and Lucindale (DC) | 977.6 | 49 |
| Kingston (DC) (SA) | 976.9 | 49 |
| Mount Remarkable (DC) | 974.2 | 47 |
| Victor Harbor (C) | 962.3 | 38 |
| Gawler (T) | 960.1 | 37 |
| Franklin Harbour (DC) | 959 | 36 |
| Elliston (DC) | 959 | 36 |
| Loxton Waikerie (DC) | 957.8 | 35 |
| Karoonda East Murray (DC) | 956.5 | 34 |
| Port Adelaide Enfield (C) | 952.6 | 32 |
| Yorke Peninsula (DC) | 951.6 | 31 |
| Barunga West (DC) | 950.1 | 30 |
| Port Lincoln (C) | 948.2 | 29 |
| Goyder (DC) | 946.6 | 28 |
| Ceduna (DC) | 943.2 | 26 |
| Wattle Range (DC) | 941.7 | 26 |
| The Coorong (DC) | 938.6 | 23 |
| Flinders Ranges (DC) | 933 | 22 |
| Mount Gambier (C) | 924.1 | 19 |
| Copper Coast (DC) | 923.7 | 19 |
| Renmark Paringa (DC) | 922.6 | 18 |
| Wakefield (DC) | 921 | 18 |
| Mid Murray (DC) | 914.5 | 17 |
| Berri and Barmera (DC) | 906.9 | 14 |
| Unincorporated SA | 904.8 | 13 |
| Salisbury (C) | 903.7 | 13 |
| Murray Bridge (RC) | 891 | 11 |
| Port Pirie City and Dists (M) | 889.4 | 11 |
| Port Augusta (C) | 888.6 | 11 |
| Whyalla (C) | 883 | 10 |
| Coober Pedy (DC) | 868.3 | 9 |
| Playford (C) | 852.4 | 8 |
| Peterborough (DC) | 773.1 | 7 |
| Maralinga Tjarutja (AC) | 643.9 | 5 |
| Anangu Pitjantjatjara (AC) | 496.3 | 1 |
Chart view
Variation within Onkaparinga (C)
See the spread of scores across smaller areas within the municipality.
Chandlers Hill
1117
Percentile 99
Coromandel Valley (part)
1099
Percentile 96
Seaford Heights
1091.6
Percentile 94
Clarendon (SA)
1091.4
Percentile 94
Coromandel East
1087
Percentile 93
Cherry Gardens
1082.3
Percentile 91
Willunga South
1074.1
Percentile 87
Kangarilla (part)
1073.7
Percentile 87
The Range (SA) (part)
1073
Percentile 87
Flagstaff Hill
1072.7
Percentile 87
Tatachilla
1065.5
Percentile 83
Blewitt Springs
1062.7
Percentile 81
McLaren Flat
1062.6
Percentile 81
Onkaparinga Hills
1059.5
Percentile 79
Willunga
1056
Percentile 77
Happy Valley (SA)
1045.9
Percentile 70
Aberfoyle Park
1044.4
Percentile 69
Whites Valley
1041.4
Percentile 67
Moana
1036.2
Percentile 64
O'Halloran Hill (part)
1033.3
Percentile 62
Woodcroft (SA)
1032.4
Percentile 61
Sellicks Hill (part)
1028.4
Percentile 59
McLaren Vale
1026.2
Percentile 57
Port Noarlunga South
1018
Percentile 52
Darlington (SA) (part)
1007.6
Percentile 46
Old Reynella
998.3
Percentile 41
Port Noarlunga
996.2
Percentile 40
Seaford Meadows
995
Percentile 39
Aldinga
992.7
Percentile 38
Reynella (part)
989.8
Percentile 36
Maslin Beach
989.3
Percentile 36
Seaford Rise
986.1
Percentile 34
Sellicks Beach
985.7
Percentile 34
Reynella East
976.7
Percentile 30
Seaford (SA)
974.4
Percentile 29
Old Noarlunga
968
Percentile 26
Aldinga Beach
966.3
Percentile 25
Port Willunga
963
Percentile 24
Noarlunga Downs
935.7
Percentile 16
Morphett Vale
934
Percentile 15
Christies Beach
930.9
Percentile 15
Noarlunga Centre
924.4
Percentile 13
Hackham
915.5
Percentile 11
O'Sullivan Beach
908.4
Percentile 10
Huntfield Heights
887.7
Percentile 8
Hackham West
805.7
Percentile 3
Christie Downs
803.2
Percentile 3
Data table
Variation within Onkaparinga (C) table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| Chandlers Hill | 1117 | 99 |
| Coromandel Valley (part) | 1099 | 96 |
| Seaford Heights | 1091.6 | 94 |
| Clarendon (SA) | 1091.4 | 94 |
| Coromandel East | 1087 | 93 |
| Cherry Gardens | 1082.3 | 91 |
| Willunga South | 1074.1 | 87 |
| Kangarilla (part) | 1073.7 | 87 |
| The Range (SA) (part) | 1073 | 87 |
| Flagstaff Hill | 1072.7 | 87 |
| Tatachilla | 1065.5 | 83 |
| Blewitt Springs | 1062.7 | 81 |
| McLaren Flat | 1062.6 | 81 |
| Onkaparinga Hills | 1059.5 | 79 |
| Willunga | 1056 | 77 |
| Happy Valley (SA) | 1045.9 | 70 |
| Aberfoyle Park | 1044.4 | 69 |
| Whites Valley | 1041.4 | 67 |
| Moana | 1036.2 | 64 |
| O'Halloran Hill (part) | 1033.3 | 62 |
| Woodcroft (SA) | 1032.4 | 61 |
| Sellicks Hill (part) | 1028.4 | 59 |
| McLaren Vale | 1026.2 | 57 |
| Port Noarlunga South | 1018 | 52 |
| Darlington (SA) (part) | 1007.6 | 46 |
| Old Reynella | 998.3 | 41 |
| Port Noarlunga | 996.2 | 40 |
| Seaford Meadows | 995 | 39 |
| Aldinga | 992.7 | 38 |
| Reynella (part) | 989.8 | 36 |
| Maslin Beach | 989.3 | 36 |
| Seaford Rise | 986.1 | 34 |
| Sellicks Beach | 985.7 | 34 |
| Reynella East | 976.7 | 30 |
| Seaford (SA) | 974.4 | 29 |
| Old Noarlunga | 968 | 26 |
| Aldinga Beach | 966.3 | 25 |
| Port Willunga | 963 | 24 |
| Noarlunga Downs | 935.7 | 16 |
| Morphett Vale | 934 | 15 |
| Christies Beach | 930.9 | 15 |
| Noarlunga Centre | 924.4 | 13 |
| Hackham | 915.5 | 11 |
| O'Sullivan Beach | 908.4 | 10 |
| Huntfield Heights | 887.7 | 8 |
| Hackham West | 805.7 | 3 |
| Christie Downs | 803.2 | 3 |