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, Clarence (C)'s Index of Relative Socio-economic Disadvantage (IRSD) score was 1009.2, placing it in the 73rd percentile nationally. Within Clarence (C), scores ranged from Clarendon Vale to Acton Park (Tas.).
View
1009.2
Clarence (C) IRSD score
73rd percentile nationally
1113.6
Highest local score
Acton Park (Tas.)
659.4
Lowest local score
Clarendon Vale
Chart view
SEIFA – disadvantage across Tasmania LGAs
Compare the selected index across Tasmania LGAs with the current municipality highlighted.
Hobart (C)
1045.7
Kingborough (M)
1038.5
Clarence (C)
1009.2
West Tamar (M)
1003.7
King Island (M)
992.8
Sorell (M)
990.7
Meander Valley (M)
975.7
Latrobe (M) (Tas.)
973.8
Huon Valley (M)
973.8
Northern Midlands (M)
966.2
Flinders (M) (Tas.)
962.7
Central Coast (M) (Tas.)
958.1
Kentish (M)
953.2
Southern Midlands (M)
951.3
Glamorgan/Spring Bay (M)
950.3
Circular Head (M)
942.7
Launceston (C)
939.5
Dorset (M)
931.5
Waratah/Wynyard (M)
929.1
Glenorchy (C)
927.4
Tasman (M)
923.1
Burnie (C)
920.3
Derwent Valley (M)
912.9
Break O'Day (M)
911.1
Central Highlands (M) (Tas.)
910.9
Devonport (C)
905.9
Brighton (M)
884.6
West Coast (M)
860.5
George Town (M)
860.5
Data table
SEIFA – disadvantage across Tasmania LGAs table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| Hobart (C) | 1045.7 | 90 |
| Kingborough (M) | 1038.5 | 86 |
| Clarence (C) | 1009.2 | 73 |
| West Tamar (M) | 1003.7 | 70 |
| King Island (M) | 992.8 | 62 |
| Sorell (M) | 990.7 | 60 |
| Meander Valley (M) | 975.7 | 48 |
| Latrobe (M) (Tas.) | 973.8 | 47 |
| Huon Valley (M) | 973.8 | 47 |
| Northern Midlands (M) | 966.2 | 42 |
| Flinders (M) (Tas.) | 962.7 | 39 |
| Central Coast (M) (Tas.) | 958.1 | 35 |
| Kentish (M) | 953.2 | 32 |
| Southern Midlands (M) | 951.3 | 31 |
| Glamorgan/Spring Bay (M) | 950.3 | 31 |
| Circular Head (M) | 942.7 | 26 |
| Launceston (C) | 939.5 | 24 |
| Dorset (M) | 931.5 | 21 |
| Waratah/Wynyard (M) | 929.1 | 20 |
| Glenorchy (C) | 927.4 | 20 |
| Tasman (M) | 923.1 | 18 |
| Burnie (C) | 920.3 | 17 |
| Derwent Valley (M) | 912.9 | 16 |
| Break O'Day (M) | 911.1 | 16 |
| Central Highlands (M) (Tas.) | 910.9 | 15 |
| Devonport (C) | 905.9 | 14 |
| Brighton (M) | 884.6 | 10 |
| West Coast (M) | 860.5 | 9 |
| George Town (M) | 860.5 | 9 |
Chart view
Variation within Clarence (C)
See the spread of scores across smaller areas within the municipality.
Acton Park (Tas.)
1113.6
Percentile 99
Dulcot
1107
Percentile 98
Clifton Beach (Tas.)
1100.6
Percentile 97
Cremorne (Tas.)
1100.2
Percentile 97
Tranmere (Tas.)
1099.3
Percentile 96
Seven Mile Beach (part)
1092.6
Percentile 95
Rosny
1085.3
Percentile 92
Otago (part)
1082.9
Percentile 92
Mount Rumney
1081.1
Percentile 91
Sandford (Tas.)
1072
Percentile 86
Lauderdale
1070.3
Percentile 86
Roches Beach
1063.5
Percentile 81
Cambridge (Tas.)
1057.5
Percentile 78
Rose Bay (Tas.)
1048.4
Percentile 71
Howrah
1045.9
Percentile 70
Richmond (Tas.)
1040.7
Percentile 67
Oakdowns
1040.1
Percentile 66
Lindisfarne
1032.1
Percentile 61
Geilston Bay
1031.9
Percentile 61
Opossum Bay
1031.9
Percentile 61
South Arm (Tas.)
1031.1
Percentile 61
Bellerive
1022.9
Percentile 55
Montagu Bay
1021.3
Percentile 54
Risdon
1020.5
Percentile 54
Grasstree Hill
993.2
Percentile 38
Mornington (Tas.)
945.6
Percentile 18
Rokeby (Tas.)
898.2
Percentile 9
Risdon Vale
864.9
Percentile 5
Warrane
831.3
Percentile 4
Clarendon Vale
659.4
Percentile 2
Data table
Variation within Clarence (C) table
Download the underlying SEIFA scores and percentiles shown in the current view.
| Area | Score | Percentile |
|---|---|---|
| Acton Park (Tas.) | 1113.6 | 99 |
| Dulcot | 1107 | 98 |
| Clifton Beach (Tas.) | 1100.6 | 97 |
| Cremorne (Tas.) | 1100.2 | 97 |
| Tranmere (Tas.) | 1099.3 | 96 |
| Seven Mile Beach (part) | 1092.6 | 95 |
| Rosny | 1085.3 | 92 |
| Otago (part) | 1082.9 | 92 |
| Mount Rumney | 1081.1 | 91 |
| Sandford (Tas.) | 1072 | 86 |
| Lauderdale | 1070.3 | 86 |
| Roches Beach | 1063.5 | 81 |
| Cambridge (Tas.) | 1057.5 | 78 |
| Rose Bay (Tas.) | 1048.4 | 71 |
| Howrah | 1045.9 | 70 |
| Richmond (Tas.) | 1040.7 | 67 |
| Oakdowns | 1040.1 | 66 |
| Lindisfarne | 1032.1 | 61 |
| Geilston Bay | 1031.9 | 61 |
| Opossum Bay | 1031.9 | 61 |
| South Arm (Tas.) | 1031.1 | 61 |
| Bellerive | 1022.9 | 55 |
| Montagu Bay | 1021.3 | 54 |
| Risdon | 1020.5 | 54 |
| Grasstree Hill | 993.2 | 38 |
| Mornington (Tas.) | 945.6 | 18 |
| Rokeby (Tas.) | 898.2 | 9 |
| Risdon Vale | 864.9 | 5 |
| Warrane | 831.3 | 4 |
| Clarendon Vale | 659.4 | 2 |