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, Bass Coast (S)'s Index of Relative Socio-economic Disadvantage (IRSD) score was 992.8, placing it in the 62nd percentile nationally. Within Bass Coast (S), scores ranged from Pioneer Bay to Woolamai.
View
992.8
Bass Coast (S) IRSD score
62nd percentile nationally
1077.9
Highest local score
Woolamai
899.8
Lowest local score
Pioneer Bay
Chart view
SEIFA – disadvantage across Victoria LGAs
Compare the selected index across Victoria LGAs with the current municipality highlighted.
Nillumbik (S)
1092.9
Bayside (C)
1090.4
Boroondara (C)
1089.6
Surf Coast (S)
1086.2
Stonnington (C)
1084.5
Queenscliffe (B)
1082.2
Glen Eira (C)
1074.6
Macedon Ranges (S)
1062.8
Port Phillip (C)
1061
Banyule (C)
1057.7
Manningham (C)
1056.1
Yarra (C)
1045.7
Kingston (C) (Vic.)
1044.3
Whitehorse (C)
1042.7
Monash (C)
1042.3
Knox (C)
1042.2
Yarra Ranges (S)
1041.2
Maroondah (C)
1041
Moonee Valley (C)
1040.7
Golden Plains (S)
1039.9
Mornington Peninsula (S)
1037.5
Indigo (S)
1029.4
Moyne (S)
1029
Mansfield (S)
1027.6
Alpine (S)
1027.6
Moreland (C)
1026.5
Cardinia (S)
1021
Hobsons Bay (C)
1020.7
Darebin (C)
1018.3
Moorabool (S)
1017.2
Melbourne (C)
1016.7
Unincorporated Vic
1012.4
Maribyrnong (C)
1009.7
Mount Alexander (S)
1007.5
Greater Geelong (C)
1007.3
Hepburn (S)
1006.3
Wyndham (C)
1005.5
Murrindindi (S)
1004.7
Baw Baw (S)
1003.3
Frankston (C)
1003.1
South Gippsland (S)
1002.6
Towong (S)
1000.8
Mitchell (S)
999.5
Warrnambool (C)
994.9
Casey (C)
994.7
Southern Grampians (S)
993.7
Bass Coast (S)
992.8
West Wimmera (S)
991
Horsham (RC)
990.1
Whittlesea (C)
989.6
Wangaratta (RC)
988.4
Ballarat (C)
985.7
Melton (C)
985.2
Greater Bendigo (C)
985
Corangamite (S)
984.6
Strathbogie (S)
982
Buloke (S)
975
Wodonga (C)
973.1
Wellington (S)
973
Colac-Otway (S)
972.6
Benalla (RC)
968.4
Campaspe (S)
964.9
East Gippsland (S)
963.3
Pyrenees (S)
958.7
Moira (S)
958.3
Ararat (RC)
955.2
Gannawarra (S)
952.4
Glenelg (S)
952.3
Northern Grampians (S)
951.3
Loddon (S)
948.1
Yarriambiack (S)
945.9
Greater Shepparton (C)
944
Hume (C)
940.8
Swan Hill (RC)
940.6
Hindmarsh (S)
940.1
Mildura (RC)
940
Latrobe (C) (Vic.)
930.8
Brimbank (C)
912.5
Central Goldfields (S)
897.6
Greater Dandenong (C)
886.7
Data table
SEIFA – disadvantage across Victoria LGAs table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| Nillumbik (S) | 1092.9 | 98 |
| Bayside (C) | 1090.4 | 98 |
| Boroondara (C) | 1089.6 | 98 |
| Surf Coast (S) | 1086.2 | 97 |
| Stonnington (C) | 1084.5 | 97 |
| Queenscliffe (B) | 1082.2 | 97 |
| Glen Eira (C) | 1074.6 | 95 |
| Macedon Ranges (S) | 1062.8 | 93 |
| Port Phillip (C) | 1061 | 92 |
| Banyule (C) | 1057.7 | 92 |
| Manningham (C) | 1056.1 | 91 |
| Yarra (C) | 1045.7 | 90 |
| Kingston (C) (Vic.) | 1044.3 | 88 |
| Whitehorse (C) | 1042.7 | 88 |
| Monash (C) | 1042.3 | 88 |
| Knox (C) | 1042.2 | 87 |
| Yarra Ranges (S) | 1041.2 | 87 |
| Maroondah (C) | 1041 | 87 |
| Moonee Valley (C) | 1040.7 | 87 |
| Golden Plains (S) | 1039.9 | 86 |
| Mornington Peninsula (S) | 1037.5 | 86 |
| Indigo (S) | 1029.4 | 83 |
| Moyne (S) | 1029 | 82 |
| Mansfield (S) | 1027.6 | 82 |
| Alpine (S) | 1027.6 | 81 |
| Moreland (C) | 1026.5 | 80 |
| Cardinia (S) | 1021 | 78 |
| Hobsons Bay (C) | 1020.7 | 78 |
| Darebin (C) | 1018.3 | 77 |
| Moorabool (S) | 1017.2 | 76 |
| Melbourne (C) | 1016.7 | 76 |
| Unincorporated Vic | 1012.4 | 75 |
| Maribyrnong (C) | 1009.7 | 74 |
| Mount Alexander (S) | 1007.5 | 72 |
| Greater Geelong (C) | 1007.3 | 72 |
| Hepburn (S) | 1006.3 | 71 |
| Wyndham (C) | 1005.5 | 71 |
| Murrindindi (S) | 1004.7 | 70 |
| Baw Baw (S) | 1003.3 | 69 |
| Frankston (C) | 1003.1 | 69 |
| South Gippsland (S) | 1002.6 | 68 |
| Towong (S) | 1000.8 | 68 |
| Mitchell (S) | 999.5 | 67 |
| Warrnambool (C) | 994.9 | 64 |
| Casey (C) | 994.7 | 63 |
| Southern Grampians (S) | 993.7 | 62 |
| Bass Coast (S) | 992.8 | 62 |
| West Wimmera (S) | 991 | 60 |
| Horsham (RC) | 990.1 | 60 |
| Whittlesea (C) | 989.6 | 59 |
| Wangaratta (RC) | 988.4 | 57 |
| Ballarat (C) | 985.7 | 55 |
| Melton (C) | 985.2 | 55 |
| Greater Bendigo (C) | 985 | 55 |
| Corangamite (S) | 984.6 | 54 |
| Strathbogie (S) | 982 | 53 |
| Buloke (S) | 975 | 48 |
| Wodonga (C) | 973.1 | 46 |
| Wellington (S) | 973 | 46 |
| Colac-Otway (S) | 972.6 | 46 |
| Benalla (RC) | 968.4 | 43 |
| Campaspe (S) | 964.9 | 40 |
| East Gippsland (S) | 963.3 | 39 |
| Pyrenees (S) | 958.7 | 36 |
| Moira (S) | 958.3 | 35 |
| Ararat (RC) | 955.2 | 34 |
| Gannawarra (S) | 952.4 | 32 |
| Glenelg (S) | 952.3 | 32 |
| Northern Grampians (S) | 951.3 | 31 |
| Loddon (S) | 948.1 | 29 |
| Yarriambiack (S) | 945.9 | 28 |
| Greater Shepparton (C) | 944 | 27 |
| Hume (C) | 940.8 | 25 |
| Swan Hill (RC) | 940.6 | 25 |
| Hindmarsh (S) | 940.1 | 25 |
| Mildura (RC) | 940 | 24 |
| Latrobe (C) (Vic.) | 930.8 | 21 |
| Brimbank (C) | 912.5 | 16 |
| Central Goldfields (S) | 897.6 | 12 |
| Greater Dandenong (C) | 886.7 | 11 |
Chart view
Variation within Bass Coast (S)
See the spread of scores across smaller areas within the municipality.
Woolamai
1077.9
Percentile 89
St Clair (Vic.)
1077.3
Percentile 89
Wattle Bank
1077.3
Percentile 89
Lance Creek
1069
Percentile 85
Silverleaves
1064.5
Percentile 82
Rhyll
1063
Percentile 81
Almurta
1060.6
Percentile 80
Kernot
1060.6
Percentile 80
Krowera
1060.6
Percentile 80
Ventnor (Vic.)
1054.7
Percentile 76
Kilcunda
1054.5
Percentile 76
Glen Alvie
1053.1
Percentile 75
Ryanston
1053.1
Percentile 75
Smiths Beach
1050.8
Percentile 73
Surf Beach (Vic.)
1045.9
Percentile 70
Cape Woolamai
1045
Percentile 69
West Creek
1043.5
Percentile 68
Inverloch (part)
1043.2
Percentile 68
Cape Paterson
1040.9
Percentile 67
San Remo (Vic.)
1033.6
Percentile 62
Newhaven
1032.3
Percentile 61
Archies Creek
1024
Percentile 56
Harmers Haven
1017.6
Percentile 52
Sunderland Bay
988.7
Percentile 36
Jam Jerrup
987.2
Percentile 35
Woodleigh (Vic.)
987.2
Percentile 35
Glen Forbes
985.8
Percentile 34
Tenby Point
985.8
Percentile 34
The Gurdies
985.7
Percentile 34
Wimbledon Heights
983.1
Percentile 33
Cowes
974.1
Percentile 29
Dalyston
972
Percentile 28
Adams Estate
969.6
Percentile 27
Corinella (Vic.)
969.4
Percentile 27
Grantville
963.6
Percentile 24
North Wonthaggi
957.2
Percentile 22
Anderson
947.4
Percentile 19
Bass
947.4
Percentile 19
South Dudley
944.3
Percentile 18
Coronet Bay
926.9
Percentile 14
Sunset Strip (Vic.)
920.2
Percentile 12
Wonthaggi
909.6
Percentile 11
Pioneer Bay
899.8
Percentile 9
Data table
Variation within Bass Coast (S) table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| Woolamai | 1077.9 | 89 |
| St Clair (Vic.) | 1077.3 | 89 |
| Wattle Bank | 1077.3 | 89 |
| Lance Creek | 1069 | 85 |
| Silverleaves | 1064.5 | 82 |
| Rhyll | 1063 | 81 |
| Almurta | 1060.6 | 80 |
| Kernot | 1060.6 | 80 |
| Krowera | 1060.6 | 80 |
| Ventnor (Vic.) | 1054.7 | 76 |
| Kilcunda | 1054.5 | 76 |
| Glen Alvie | 1053.1 | 75 |
| Ryanston | 1053.1 | 75 |
| Smiths Beach | 1050.8 | 73 |
| Surf Beach (Vic.) | 1045.9 | 70 |
| Cape Woolamai | 1045 | 69 |
| West Creek | 1043.5 | 68 |
| Inverloch (part) | 1043.2 | 68 |
| Cape Paterson | 1040.9 | 67 |
| San Remo (Vic.) | 1033.6 | 62 |
| Newhaven | 1032.3 | 61 |
| Archies Creek | 1024 | 56 |
| Harmers Haven | 1017.6 | 52 |
| Sunderland Bay | 988.7 | 36 |
| Jam Jerrup | 987.2 | 35 |
| Woodleigh (Vic.) | 987.2 | 35 |
| Glen Forbes | 985.8 | 34 |
| Tenby Point | 985.8 | 34 |
| The Gurdies | 985.7 | 34 |
| Wimbledon Heights | 983.1 | 33 |
| Cowes | 974.1 | 29 |
| Dalyston | 972 | 28 |
| Adams Estate | 969.6 | 27 |
| Corinella (Vic.) | 969.4 | 27 |
| Grantville | 963.6 | 24 |
| North Wonthaggi | 957.2 | 22 |
| Anderson | 947.4 | 19 |
| Bass | 947.4 | 19 |
| South Dudley | 944.3 | 18 |
| Coronet Bay | 926.9 | 14 |
| Sunset Strip (Vic.) | 920.2 | 12 |
| Wonthaggi | 909.6 | 11 |
| Pioneer Bay | 899.8 | 9 |