Households
Household size
About this topic
Household size shows how many people live in each household. It is a basic but important measure of family life, dwelling use, and the way people share housing.
This topic helps indicate demand for different dwelling sizes and can reflect life-cycle patterns, cultural norms, and affordability pressures. It is best read with household type, age structure, and dwelling type, because changes in household size can happen for very different reasons.
Interpretation notes
- This counts the number of people usually resident in the dwelling, so it describes shared living arrangements rather than dwelling size.
- Household size should be read with bedrooms or dwelling structure before drawing conclusions about crowding or housing suitability.
Key insight
In 2021, two-person households was the most common household size among households in Tumby Bay (DC), accounting for 41.7% (493 households). This share was higher than Regional SA (38.7%). Since 2016, the biggest change was in two-person households, which increased by 48 households and 0.4 percentage points.
Section overview
Household size
Tumby Bay (DC) - Households (Enumerated)
This table summarises household size for Tumby Bay (DC) in 2021 for persons, with comparison against Regional SA and change since 2016.
Household size snapshot
2021 distribution by category for Tumby Bay (DC), with comparison markers for Regional SA.
Number Of Persons Usually Resident One
2021 count
397
% of total
33.6%
Change from 2016
+1.2pp
397
33.6%
+1.2pp
Number Of Persons Usually Resident Two
2021 count
493
% of total
41.7%
Change from 2016
+0.4pp
493
41.7%
+0.4pp
Number Of Persons Usually Resident Three
2021 count
102
% of total
8.6%
Change from 2016
-1.3pp
102
8.6%
-1.3pp
Number Of Persons Usually Resident Four
2021 count
103
% of total
8.7%
Change from 2016
-0.7pp
103
8.7%
-0.7pp
Number Of Persons Usually Resident Five
2021 count
62
% of total
5.2%
Change from 2016
+0.4pp
62
5.2%
+0.4pp
Number Of Persons Usually Resident Six Or More
2021 count
20
% of total
1.7%
Change from 2016
0.0pp
20
1.7%
0.0pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
Number Of Persons Usually Resident One
+48
+1.2pp
Number Of Persons Usually Resident Two
+48
+0.4pp
Number Of Persons Usually Resident Three
-5
-1.3pp
Number Of Persons Usually Resident Four
+2
-0.7pp
Number Of Persons Usually Resident Five
+10
+0.4pp
Number Of Persons Usually Resident Six Or More
+2
0.0pp
Data table
Household size for Tumby Bay (DC). Household size. 2021 and 2016 counts, percentages, and change compared with Regional SA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional SA% | Count | % | Regional SA% | Count | pp | |
| Number Of Persons Usually Resident One | 397 | 33.6% | 31.3% | 349 | 32.4% | 30.3% | +48 | +1.2pp |
| Number Of Persons Usually Resident Two | 493 | 41.7% | 38.7% | 445 | 41.3% | 38.4% | +48 | +0.4pp |
| Number Of Persons Usually Resident Three | 102 | 8.6% | 12.0% | 107 | 9.9% | 12.3% | -5 | -1.3pp |
| Number Of Persons Usually Resident Four | 103 | 8.7% | 10.7% | 101 | 9.4% | 11.5% | +2 | -0.7pp |
| Number Of Persons Usually Resident Five | 62 | 5.2% | 5.0% | 52 | 4.8% | 5.3% | +10 | +0.4pp |
| Number Of Persons Usually Resident Six Or More | 20 | 1.7% | 2.3% | 18 | 1.7% | 2.2% | +2 | 0.0pp |
| Total | 1,181 | 100.0% | 100.0% | 1,077 | 100.0% | 100.0% | +104 | 0.0pp |