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Bletchley vs Lake Plains

Suburb / Locality comparison ≈ 14 km apart · Bletchley profile · Lake Plains profile

Bletchley Lake Plains

Bletchley and Lake Plains are both sparsely populated areas in South Australia. Bletchley has a much younger feel, with 30.3% of its people being children under 15, compared to 14.6% in Lake Plains. Money is a major divider; the typical weekly household income in Bletchley is far higher at $1,875, while it is just $850 in Lake Plains. Bletchley also sees far more unpaid care and volunteering, with 22.2% of people providing unpaid care compared to none in Lake Plains.

Daily life in both places is very similar, as neither area has any public transport stops or shops within a 15-minute walk. They also share almost identical rates of people working from home and have no one using public transport to commute. While Lake Plains has a higher share of people born overseas and a larger First Nations population, both areas have roughly the same proportion of residents aged 65 and over.

Where they differ most

Demographics & Identity

Population in Bletchleyin Lake Plains +28 larger in Bletchley gap widening
76 35th pct 48 27th pct
  • First area, 2016: 77
  • First area, 2021: 76
  • Second area, 2016: 62
  • Second area, 2021: 48
Median age in Bletchleyin Lake Plains +6 yrs older in Lake Plains gap narrowing
41 yrs 33rd pct 47 yrs 57th pct
  • First area, 2016: 41 yrs
  • First area, 2021: 41 yrs
  • Second area, 2016: 50 yrs
  • Second area, 2021: 47 yrs
First Nations in Bletchleyin Lake Plains +6.3 pts higher in Lake Plains gap widening
0.0% 0th pct 6.3% 78th pct
  • First area, 2016: 0.0%
  • First area, 2021: 0.0%
  • Second area, 2016: 0.0%
  • Second area, 2021: 6.3%
Aged 65+ in Bletchleyin Lake Plains +0.5 pts higher in Lake Plains gap narrowing
22.4% 66th pct 22.9% 68th pct
  • First area, 2016: 6.5%
  • First area, 2021: 22.4%
  • Second area, 2016: 16.1%
  • Second area, 2021: 22.9%
Under 15 in Bletchleyin Lake Plains +15.7 pts higher in Bletchley gap widening
30.3% 95th pct 14.6% 34th pct
  • First area, 2016: 26.0%
  • First area, 2021: 30.3%
  • Second area, 2016: 25.8%
  • Second area, 2021: 14.6%
De facto in Bletchleyin Lake Plains +2.8 pts higher in Lake Plains gap widening
5.6% 12th pct 8.3% 23rd pct
  • First area, 2016: 10.7%
  • First area, 2021: 5.6%
  • Second area, 2016: 11.1%
  • Second area, 2021: 8.3%

Age structure

30.3% Children (0–14) ◂ +15.7 pts 14.6%
26.3% Older adults (45–64) ◂ +3.4 pts 22.9%
22.4% Seniors (65+) +0.5 pts ▸ 22.9%
17.1% Young adults (25–44) ◂ +10.9 pts 6.3%
9.2% Youth (15–24) +1.2 pts ▸ 10.4%

Marital status

70.4% Married ◂ +14.0 pts 56.4%
25.9% Never married +12.5 pts ▸ 38.5%
0.0% Widowed +10.3 pts ▸ 10.3%
5.6% Divorced ◂ +5.6 pts 0.0%
0.0% Separated even 0.0%

Age & sex structure

Bletchley Lake Plains

Bars show the share of each area's own population, so differently sized areas stay comparable.

  • 85+ in Bletchley: 0.0% males, 0.0% females; 85+ in Lake Plains: 0.0% males, 0.0% females
  • 80–84 in Bletchley: 0.0% males, 0.0% females; 80–84 in Lake Plains: 0.0% males, 0.0% females
  • 75–79 in Bletchley: 0.0% males, 0.0% females; 75–79 in Lake Plains: 0.0% males, 0.0% females
  • 70–74 in Bletchley: 6.9% males, 0.0% females; 70–74 in Lake Plains: 17.2% males, 0.0% females
  • 65–69 in Bletchley: 5.6% males, 4.2% females; 65–69 in Lake Plains: 0.0% males, 10.3% females
  • 60–64 in Bletchley: 0.0% males, 0.0% females; 60–64 in Lake Plains: 0.0% males, 0.0% females
  • 55–59 in Bletchley: 4.2% males, 0.0% females; 55–59 in Lake Plains: 20.7% males, 0.0% females
  • 50–54 in Bletchley: 4.2% males, 4.2% females; 50–54 in Lake Plains: 0.0% males, 0.0% females
  • 45–49 in Bletchley: 4.2% males, 6.9% females; 45–49 in Lake Plains: 0.0% males, 0.0% females
  • 40–44 in Bletchley: 8.3% males, 4.2% females; 40–44 in Lake Plains: 0.0% males, 0.0% females
  • 35–39 in Bletchley: 6.9% males, 0.0% females; 35–39 in Lake Plains: 0.0% males, 10.3% females
  • 30–34 in Bletchley: 0.0% males, 0.0% females; 30–34 in Lake Plains: 0.0% males, 13.8% females
  • 25–29 in Bletchley: 0.0% males, 4.2% females; 25–29 in Lake Plains: 0.0% males, 0.0% females
  • 20–24 in Bletchley: 0.0% males, 0.0% females; 20–24 in Lake Plains: 0.0% males, 0.0% females
  • 15–19 in Bletchley: 5.6% males, 0.0% females; 15–19 in Lake Plains: 0.0% males, 13.8% females
  • 10–14 in Bletchley: 9.7% males, 5.6% females; 10–14 in Lake Plains: 0.0% males, 0.0% females
  • 5–9 in Bletchley: 8.3% males, 0.0% females; 5–9 in Lake Plains: 0.0% males, 0.0% females
  • 0–4 in Bletchley: 6.9% males, 0.0% females; 0–4 in Lake Plains: 13.8% males, 0.0% females

Ancestry & Birthplace

Born overseas in Bletchleyin Lake Plains +10.6 pts higher in Lake Plains gap steady
3.9% 17th pct 14.6% 63rd pct
  • First area, 2016: 3.9%
  • First area, 2021: 3.9%
  • Second area, 2016: 14.5%
  • Second area, 2021: 14.6%

Country of birth

96.1% Australia ◂ +12.7 pts 83.3%
0.0% England +8.3 pts ▸ 8.3%
0.0% Philippines +8.3 pts ▸ 8.3%
0.0% India even 0.0%
0.0% China even 0.0%
0.0% New Zealand even 0.0%
0.0% Vietnam even 0.0%
0.0% Nepal even 0.0%
0.0% Italy even 0.0%
0.0% South Africa even 0.0%

Ancestry

57.9% Australian ◂ +16.2 pts 41.7%
48.7% English ◂ +4.9 pts 43.8%
19.7% Irish ◂ +19.7 pts 0.0%
5.3% Scottish +11.4 pts ▸ 16.7%
10.5% German ◂ +2.2 pts 8.3%
0.0% Filipino +8.3 pts ▸ 8.3%
5.3% Chinese ◂ +5.3 pts 0.0%
0.0% Italian even 0.0%
0.0% Indian even 0.0%
0.0% Greek even 0.0%
0.0% Dutch even 0.0%
0.0% Vietnamese even 0.0%

Language

Other language in Bletchleyin Lake Plains +6.3 pts higher in Lake Plains gap widening
0.0% 0th pct 6.3% 66th pct
  • First area, 2016: 0.0%
  • First area, 2021: 0.0%
  • Second area, 2016: 0.0%
  • Second area, 2021: 6.3%
Limited English in Bletchleyin Lake Plains even gap steady
0.0% 0th pct 0.0% 0th pct
  • First area, 2016: 0.0%
  • First area, 2021: 0.0%
  • Second area, 2016: 0.0%
  • Second area, 2021: 0.0%

Language used at home

100.0% English only ◂ +22.9 pts 77.1%
0.0% Mandarin even 0.0%
0.0% Arabic even 0.0%
0.0% Vietnamese even 0.0%
0.0% Cantonese even 0.0%
0.0% Punjabi even 0.0%
0.0% Greek even 0.0%
0.0% Italian even 0.0%
0.0% Hindi even 0.0%
0.0% Tagalog even 0.0%

Religion

No religion in Bletchleyin Lake Plains +18.8 pts higher in Bletchley gap widening
50.0% 79th pct 31.3% 26th pct
  • First area, 2016: 33.8%
  • First area, 2021: 50.0%
  • Second area, 2016: 29.0%
  • Second area, 2021: 31.3%

Religious affiliation

42.1% Christianity +7.9 pts ▸ 50.0%
50.0% No religion ◂ +18.8 pts 31.3%
9.2% Not stated +3.3 pts ▸ 12.5%
0.0% Islam even 0.0%
0.0% Hinduism even 0.0%
0.0% Buddhism even 0.0%
0.0% Judaism even 0.0%
0.0% Other religions even 0.0%

Education & Qualifications

Year 12 in Bletchleyin Lake Plains +1.4 pts higher in Lake Plains gap narrowing
50.0% 62nd pct 51.4% 65th pct
  • First area, 2016: 55.4%
  • First area, 2021: 50.0%
  • Second area, 2016: 37.2%
  • Second area, 2021: 51.4%
Bachelor+ in Bletchleyin Lake Plains +1.3 pts higher in Lake Plains gap steady
16.7% 58th pct 17.9% 61st pct
  • First area, 2016: 5.1%
  • First area, 2021: 16.7%
  • Second area, 2016: 6.5%
  • Second area, 2021: 17.9%
Schools ≤3 km in Bletchleyin Lake Plains even
0 0th pct 0 0th pct

Highest year of school

50.0% Year 12 +1.4 pts ▸ 51.4%
20.4% Year 11 ◂ +0.4 pts 20.0%
16.7% Year 10 +0.5 pts ▸ 17.1%
11.1% Year 9 or below ◂ +11.1 pts 0.0%

Highest qualification level

45.7% Certificate III / IV ◂ +45.7 pts 0.0%
14.3% Bachelor degree +20.7 pts ▸ 35.0%
22.9% Advanced diploma / diploma ◂ +2.9 pts 20.0%
11.4% Postgraduate degree ◂ +11.4 pts 0.0%
0.0% Graduate diploma / certificate even 0.0%
0.0% Certificate I / II even 0.0%

Field of qualification

25.7% Engineering & related ◂ +10.7 pts 15.0%
11.4% Agriculture & environment +3.6 pts ▸ 15.0%
0.0% Health +15.0 pts ▸ 15.0%
11.4% Information technology ◂ +11.4 pts 0.0%
11.4% Society & culture ◂ +11.4 pts 0.0%
8.6% Education ◂ +8.6 pts 0.0%
8.6% Management & commerce ◂ +8.6 pts 0.0%
0.0% Natural & physical sciences even 0.0%
0.0% Architecture & building even 0.0%
0.0% Creative arts even 0.0%
0.0% Food, hospitality & personal services even 0.0%

Income

Personal income in Bletchleyin Lake Plains +$100 higher in Bletchley gap narrowing
$674 36th pct $574 21st pct
  • First area, 2016: $560
  • First area, 2021: $674
  • Second area, 2016: $450
  • Second area, 2021: $574
Household income in Bletchleyin Lake Plains +$1,025 higher in Bletchley gap widening
$1,875 69th pct $850 8th pct
  • First area, 2016: $1,625
  • First area, 2021: $1,875
  • Second area, 2016: $941
  • Second area, 2021: $850
Family income in Bletchleyin Lake Plains +$975 higher in Bletchley gap widening
$1,875 49th pct $900 4th pct
  • First area, 2016: $1,625
  • First area, 2021: $1,875
  • Second area, 2016: $1,062
  • Second area, 2021: $900
High earners in Bletchleyin Lake Plains +10.3 pts higher in Lake Plains gap widening
0.0% 0th pct 10.3% 62nd pct
  • First area, 2016: 11.9%
  • First area, 2021: 0.0%
  • Second area, 2016: 15.2%
  • Second area, 2021: 10.3%
High-income homes in Bletchleyin Lake Plains
25.0% 74th pct —
  • First area, 2016: 0.0%
  • First area, 2021: 25.0%
  • Second area, 2016: 0.0%

Household income distribution

70.8% $1,500–$2,999 ◂ +70.8 pts 0.0%
0.0% Under $650 +31.6 pts ▸ 31.6%
12.5% $4,000 or more +13.8 pts ▸ 26.3%
16.7% $650–$1,499 +4.4 pts ▸ 21.1%
12.5% $3,000–$3,999 ◂ +12.5 pts 0.0%

Personal income distribution

44.4% Under $650 +17.1 pts ▸ 61.5%
13.0% $650–$1,499 +33.2 pts ▸ 46.2%
27.8% $1,500–$2,999 ◂ +17.5 pts 10.3%
0.0% $3,000 or more even 0.0%

Health & Disability

Health condition in Bletchleyin Lake Plains +7.6 pts higher in Lake Plains
23.7% 25th pct 31.3% 62nd pct
Mental health in Bletchleyin Lake Plains +3.0 pts higher in Bletchley
9.2% 61st pct 6.3% 32nd pct
Needs assistance in Bletchleyin Lake Plains even gap steady
0.0% 0th pct 0.0% 0th pct
  • First area, 2016: 0.0%
  • First area, 2021: 0.0%
  • Second area, 2016: 0.0%
  • Second area, 2021: 0.0%

Long-term health conditions reported

10.5% Arthritis +8.2 pts ▸ 18.8%
7.9% Other condition +8.8 pts ▸ 16.7%
6.6% Asthma +3.8 pts ▸ 10.4%
0.0% Cancer +10.4 pts ▸ 10.4%
9.2% Mental health ◂ +3.0 pts 6.3%
5.3% Diabetes +1.0 pts ▸ 6.3%
0.0% Dementia even 0.0%
0.0% Heart disease even 0.0%
0.0% Lung condition even 0.0%
0.0% Stroke even 0.0%

Number of long-term health conditions

69.7% None ◂ +19.7 pts 50.0%
22.4% One condition ◂ +9.9 pts 12.5%
3.9% Two conditions +10.6 pts ▸ 14.6%
0.0% Three or more even 0.0%

Community Participation

Volunteering in Bletchleyin Lake Plains +16.2 pts higher in Bletchley gap widening
44.4% 97th pct 28.2% 83rd pct
  • First area, 2016: 39.0%
  • First area, 2021: 44.4%
  • Second area, 2016: 41.3%
  • Second area, 2021: 28.2%
Unpaid carers in Bletchleyin Lake Plains +22.2 pts higher in Bletchley gap widening
22.2% 93rd pct 0.0% 0th pct
  • First area, 2016: 11.9%
  • First area, 2021: 22.2%
  • Second area, 2016: 6.5%
  • Second area, 2021: 0.0%
Unpaid child care in Bletchleyin Lake Plains +20.2 pts higher in Bletchley gap steady
40.7% 94th pct 20.5% 28th pct
  • First area, 2016: 40.7%
  • First area, 2021: 40.7%
  • Second area, 2016: 19.6%
  • Second area, 2021: 20.5%
Defence service in Bletchleyin Lake Plains +10.2 pts higher in Bletchley
10.2% 96th pct 0.0% 0th pct
Housework 15h+ in Bletchleyin Lake Plains +8.5 pts higher in Bletchley gap widening
44.4% 100th pct 35.9% 90th pct
  • First area, 2016: 23.7%
  • First area, 2021: 44.4%
  • Second area, 2016: 30.4%
  • Second area, 2021: 35.9%

First Nations

First Nations people in Bletchleyin Lake Plains +3 larger in Lake Plains
0 0th pct 3 43rd pct
Median age in Bletchleyin Lake Plains +38 yrs older in Bletchley
69 yrs 100th pct 31 yrs 66th pct
Median income in Bletchleyin Lake Plains +$925 higher in Lake Plains
$450 25th pct $1,375 89th pct
Household income in Bletchleyin Lake Plains
$900 14th pct —

Family & Households

Household size in Bletchleyin Lake Plains +0.6 larger in Bletchley gap narrowing
3.2 89th pct 2.6 57th pct
  • First area, 2016: 2.8
  • First area, 2021: 3.2
  • Second area, 2016: 1.8
  • Second area, 2021: 2.6
One-parent in Bletchleyin Lake Plains +2.0 pts higher in Bletchley gap narrowing
10.5% 48th pct 8.6% 36th pct
  • First area, 2016: 4.1%
  • First area, 2021: 10.5%
  • Second area, 2016: 14.0%
  • Second area, 2021: 8.6%
0.0% 0th pct —
  • First area, 2016: 0.0%
  • First area, 2021: 0.0%
  • Second area, 2016: 11.5%

Family composition

73.7% Couples with children ◂ +5.1 pts 68.6%
25.0% Couples without children +3.6 pts ▸ 28.6%
10.5% One-parent families ◂ +2.0 pts 8.6%
0.0% Other families even 0.0%

Household size

58.3% 4 people ◂ +37.3 pts 21.1%
29.2% 2 people +7.7 pts ▸ 36.8%
16.7% 3 people ◂ +16.7 pts 0.0%
16.7% 5 people ◂ +16.7 pts 0.0%
0.0% 1 person +15.8 pts ▸ 15.8%
0.0% 6 or more even 0.0%

Housing & Dwellings

Rent in Bletchleyin Lake Plains +$27 higher in Lake Plains
$100 6th pct $127 10th pct
  • First area, 2021: $100
  • Second area, 2016: $150
  • Second area, 2021: $127
Mortgage in Bletchleyin Lake Plains +$317 higher in Lake Plains gap narrowing
$1,850 64th pct $2,167 80th pct
  • First area, 2016: $1,719
  • First area, 2021: $1,850
  • Second area, 2016: $3,100
  • Second area, 2021: $2,167
People / bedroom in Bletchleyin Lake Plains +0.20 higher in Bletchley gap narrowing
1.00 89th pct 0.80 43rd pct
  • First area, 2016: 0.90
  • First area, 2021: 1.00
  • Second area, 2016: 0.60
  • Second area, 2021: 0.80
0.0% 0th pct —
  • First area, 2016: 11.1%
  • First area, 2021: 0.0%
  • Second area, 2016: 34.6%
45.8% 64th pct —
  • First area, 2016: 29.6%
  • First area, 2021: 45.8%
  • Second area, 2016: 23.1%
Separate houses in Bletchleyin Lake Plains
100.0% 100th pct —
  • First area, 2016: 100.0%
  • First area, 2021: 100.0%
  • Second area, 2016: 100.0%
95.8% 91st pct —
  • First area, 2016: 74.1%
  • First area, 2021: 95.8%
  • Second area, 2016: 61.5%

How homes are owned or rented

50.0% Owned with a mortgage ◂ +50.0 pts 0.0%
45.8% Owned outright ◂ +3.7 pts 42.1%
0.0% Rented +31.6 pts ▸ 31.6%
0.0% Other tenure even 0.0%
0.0% Not stated even 0.0%

Types of homes

100.0% Separate house even 100.0%
0.0% Townhouse / semi-detached even 0.0%
0.0% Flat or apartment even 0.0%
0.0% Other dwelling even 0.0%

Bedrooms per home

50.0% 3 bedrooms +13.2 pts ▸ 63.2%
45.8% 4 bedrooms ◂ +19.5 pts 26.3%
37.5% 2 bedrooms ◂ +16.4 pts 21.1%
0.0% Studio / none even 0.0%
0.0% 1 bedroom even 0.0%
0.0% 5 or more even 0.0%

Transport & Vehicles

0.0% 0th pct —
  • First area, 2016: 0.0%
  • First area, 2021: 0.0%
Work from home in Bletchleyin Lake Plains +0.2 pts higher in Lake Plains gap narrowing
27.0% 75th pct 27.3% 76th pct
  • First area, 2016: 7.1%
  • First area, 2021: 27.0%
  • Second area, 2016: 28.6%
  • Second area, 2021: 27.3%
PT commute in Bletchleyin Lake Plains even gap steady
0.0% 0th pct 0.0% 0th pct
  • First area, 2016: 0.0%
  • First area, 2021: 0.0%
  • Second area, 2016: 0.0%
  • Second area, 2021: 0.0%
0 0th pct 0 0th pct
0.00 0th pct 0.00 0th pct
Departures/1k in Bletchleyin Lake Plains even
0.0 0th pct 0.0 0th pct
0 0th pct 0 0th pct
71 91st pct —
Drive to city in Bletchleyin Lake Plains +28 longer in Lake Plains
46 36th pct 74 53rd pct

How people get to work

45.9% Car (driver) +8.6 pts ▸ 54.5%
27.0% Worked at home +0.2 pts ▸ 27.3%
8.1% Walked ◂ +8.1 pts 0.0%
0.0% Car (passenger) even 0.0%
0.0% Train even 0.0%
0.0% Bus even 0.0%
0.0% Bicycle even 0.0%

Motor vehicles per home

50.0% 2 vehicles ◂ +23.7 pts 26.3%
12.5% 1 vehicle +34.9 pts ▸ 47.4%
29.2% 3 vehicles ◂ +13.4 pts 15.8%
12.5% 4 or more +8.6 pts ▸ 21.1%
0.0% No vehicle even 0.0%

Migration & Movement

Recent movers in Bletchleyin Lake Plains +8.9 pts higher in Lake Plains gap widening
10.7% 5th pct 19.6% 14th pct
  • First area, 2016: 17.8%
  • First area, 2021: 10.7%
  • Second area, 2016: 14.0%
  • Second area, 2021: 19.6%

Jobs & Industry

Unemployment in Bletchleyin Lake Plains even gap steady
0.0% 0th pct 0.0% 0th pct
  • First area, 2016: 0.0%
  • First area, 2021: 0.0%
  • Second area, 2016: 0.0%
  • Second area, 2021: 0.0%
Participation in Bletchleyin Lake Plains +12.1 pts higher in Bletchley gap widening
68.5% 77th pct 56.4% 36th pct
  • First area, 2016: 64.4%
  • First area, 2021: 68.5%
  • Second area, 2016: 65.2%
  • Second area, 2021: 56.4%
Full-time in Bletchleyin Lake Plains +5.8 pts higher in Bletchley gap widening
64.9% 78th pct 59.1% 55th pct
  • First area, 2016: 59.5%
  • First area, 2021: 64.9%
  • Second area, 2016: 57.1%
  • Second area, 2021: 59.1%

Industries people work in

40.5% Agriculture, forestry & fishing +32.2 pts ▸ 72.7%
8.1% Manufacturing +10.1 pts ▸ 18.2%
16.2% Public administration & safety ◂ +16.2 pts 0.0%
0.0% Construction +13.6 pts ▸ 13.6%
0.0% Health care & social assistance +13.6 pts ▸ 13.6%
10.8% Other services ◂ +10.8 pts 0.0%
8.1% Professional & technical ◂ +8.1 pts 0.0%
0.0% Mining even 0.0%
0.0% Electricity, gas & water even 0.0%
0.0% Wholesale trade even 0.0%
0.0% Retail trade even 0.0%
0.0% Accommodation & food even 0.0%

Occupations people work in

35.1% Managers +33.0 pts ▸ 68.2%
0.0% Labourers +40.9 pts ▸ 40.9%
0.0% Technicians & trades +27.3 pts ▸ 27.3%
18.9% Clerical & administrative ◂ +18.9 pts 0.0%
10.8% Professionals ◂ +10.8 pts 0.0%
0.0% Community & personal service even 0.0%
0.0% Sales workers even 0.0%
0.0% Machinery operators & drivers even 0.0%

Walkability

Walk score in Bletchleyin Lake Plains +0.1 higher in Lake Plains
0.0 0th pct 0.1 33rd pct
Types ≤15 min in Bletchleyin Lake Plains +0.1 more in Lake Plains
0.0 0th pct 0.1 35th pct
15-min city in Bletchleyin Lake Plains even
0.0% 0th pct 0.0% 0th pct
Walk to shops in Bletchleyin Lake Plains even
0.0% 0th pct 0.0% 0th pct
Walk to transit in Bletchleyin Lake Plains even
0.0% 0th pct 0.0% 0th pct
Walk to school in Bletchleyin Lake Plains even
0.0% 0th pct 0.0% 0th pct
Walk to a park in Bletchleyin Lake Plains +6.4 pts higher in Lake Plains
0.0% 0th pct 6.4% 45th pct
Walk to health in Bletchleyin Lake Plains even
0.0% 0th pct 0.0% 0th pct
Amenities/1k in Bletchleyin Lake Plains even
0.0 0th pct 0.0 0th pct
Intersections/km² in Bletchleyin Lake Plains even
1 41st pct 1 48th pct
Mean slope in Bletchleyin Lake Plains +0.2 pts higher in Lake Plains
2.9% 11th pct 3.1% 14th pct

Compare Bletchley with nearby areas

Compare Lake Plains with nearby areas

Cite this page

Australian Bureau of Statistics. (2021). Bletchley vs Lake Plains [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/compare/sal/SAL40125/bletchley/vs/SAL40743/lake-plains