Nillumbik

Victoria · Melbourne - North East · 59,490 people · 23 suburbs · 15 postcodes

Nillumbik at a glance

59,490
Population
#36 of 79 in VIC
357
km² area
166/km² density
42.4
Median age
+3.3 vs VIC
1090
SEIFA IRSAD
#7 of 79 in VIC
25
Schools
19 gov, 4 Cath, 2 indep
15.8%
Born overseas
9.1%
Renting

Map shows the Nillumbik LGA boundary in blue with a marker per suburb. Hover for suburb name, click for details.

Marker colour reflects SEIFA IRSAD decile: 1-2 (most disadvantaged), 3-4, 5-6, 7-8, 9-10 (most advantaged).

Boundary source: ABS ASGS 2021. Map tiles: OpenStreetMap contributors.

Federal electorate boundaries can be toggled on the map. Boundary source: ABS ASGS 2021 CED boundaries.

Nillumbik is a metropolitan Local Government Area in Victoria, in the Melbourne region. It covers 23 suburbs across 15 postcodes and an area of 357 km². Nillumbik has a population of 59,490 , ranking #36 most populous in VIC. The most populous suburb is Eltham (18,847 residents).About 15.8% of residents were born overseas and 8.7% speak a language other than English at home.

Who lives here

Age structure

0–14 (18.6%) 15–24 (13.4%) 25–44 (20.8%) 45–64 (30.7%) 65+ (16.5%)
Show counts
0–14 years11,053 (18.6%)
15–24 years7,976 (13.4%)
25–44 years12,345 (20.8%)
45–64 years18,258 (30.7%)
65+ years9,824 (16.5%)
15.8%
Born overseas
8.7%
Speak a language other than English at home
0.6%
First Nations
2.9
Avg household size

How they live

Housing tenure

Owned outright (41.9%) Mortgaged (49.0%) Renting (9.1%)

Dwelling type mix

Separate house (95.7%) Semi/townhouse (2.5%) Flat/apartment (1.8%)
$435
Median weekly rent
$2,280
Median monthly mortgage
22.7%
Households with 0-1 cars
77.3%
Households with 2+ cars

Work and learning

3.5%
Unemployment rate
18,294
In full-time work
11,605
In part-time work

Schools in Nillumbik

25 schools across Nillumbik: 76.0% Government, 16.0% Catholic, 8.0% Independent. The VIC average is 68.6% / 21.4% / 10.0%. Schools here have a median ICSEA of 1070 (range 930 to 1143). VIC median is 1027; national mean is 1000.

Sector mix

VIC average for comparison
Government Catholic Independent

Type breakdown

Primary (80.0%) Secondary (16.0%) Combined (4.0%) Special (0%)

ICSEA range

700 National mean 1000 1300
LGA median 1070 VIC median 1027LGA range 930 to 1143

ICSEA (Index of Community Socio-Educational Advantage) summarises the socio-economic background of each school's families. Higher values indicate more advantage. Source: ACARA 2025.

All 25 schools in Nillumbik, sorted by enrolment:

School Sector Type Suburb Students ICSEA
St Helena Secondary College Government Secondary Eltham North 1,414 1065
Eltham High School Government Secondary Eltham 1,326 1101
Catholic Ladies' College Ltd Catholic Secondary Eltham 901 1119
Diamond Valley College Government Secondary Diamond Creek 818 1020
Eltham East Primary School Government Primary Eltham 652 1143
Eltham College Independent Combined Research 639 1139
Yarrambat Primary School Government Primary Yarrambat 634 1052
Glen Katherine Primary School Government Primary Eltham North 554 1088
Eltham North Primary School Government Primary Eltham North 475 1127
Diamond Creek East Primary School Government Primary Diamond Creek 466 1066
Holy Trinity Primary School Catholic Primary Eltham North 393 1137
Eltham Primary School Government Primary Eltham 253 1117
Diamond Creek Primary School Government Primary Diamond Creek 235 1065
Research Primary School Government Primary Research 219 1092
Kangaroo Ground Primary School Government Primary Kangaroo Ground 203 1085
Sacred Heart School Catholic Primary Diamond Creek 182 1080
Panton Hill Primary School Government Primary Panton Hill 147 1070
Wattle Glen Primary School Government Primary Wattle Glen 147 1055
Hurstbridge Primary School Government Primary Hurstbridge 141 1055
Our Lady Help of Christians School Catholic Primary Eltham 79 1094
St Andrews Primary School Government Primary St Andrews 40 1065
Learning Co-Operative School Independent Primary Cottles Bridge 31 1065
Strathewen Primary School Government Primary Strathewen 28 1068
Arthurs Creek Primary School Government Primary Arthurs Creek 22 930
Christmas Hills Primary School Government Primary Christmas Hills 9 1057

Source: ACARA School Profiles 2025. ICSEA shown where reported; some schools (notably small primaries) do not publish ICSEA.

SEIFA socio-economic indexes

SEIFA 2021 ranks Australian areas across four dimensions. Scores are population-weighted averages of suburb-level SEIFA scores within Nillumbik. Higher scores indicate more advantage; the national mean is 1000.

IRSAD

Relative socio-economic advantage and disadvantage

1090
Ranked #7 of 79 VIC LGAs

IRSD

Relative disadvantage only (lower = more disadvantaged)

1094

IER

Economic resources: income, wealth, housing

1112

IEO

Education and occupation: qualifications, skill levels

1076

Suburbs in Nillumbik

Nillumbik contains 23 suburbs and 15 postcodes. Sorted by population.

SuburbPostcodePopulationMedian incomeMedian age
Eltham 3095 18,847 $2,391/wk 43
Diamond Creek 3089 12,503 $2,508/wk 39
Eltham North 3095 6,830 $2,770/wk 42
Hurstbridge 3099 3,554 $2,168/wk 41
North Warrandyte 3113 3,027 $2,766/wk 42
Research 3095 2,695 $2,876/wk 44
Plenty 3090 2,575 $3,190/wk 44
Wattle Glen 3096 1,911 $2,425/wk 42
Yarrambat 3091 1,602 $2,600/wk 47
Kangaroo Ground 3097 1,208 $2,909/wk 44
St Andrews 3761 1,186 $2,216/wk 46
Panton Hill 3759 1,063 $2,367/wk 48
Cottles Bridge 3099 609 $2,170/wk 52
Arthurs Creek 3099 478 $2,214/wk 52
Christmas Hills 3775 365 $2,285/wk 46
Smiths Gully 3760 356 $2,468/wk 49
Bend Of Islands 3097 267 $1,971/wk 47
Strathewen 3099 198 $2,094/wk 41
Nutfield 3099 158 $1,916/wk 50
Watsons Creek 3097 58 $3,750/wk 35
Bruces Creek 3757
Mount Slide 3763
Saint Helena 3088

Postcodes covered

3088, 3089, 3090, 3091, 3095, 3096, 3097, 3099, 3113, 3757, 3759, 3760, 3761, 3763, 3775

Compare Nillumbik with neighbouring LGAs

Side-by-side demographic and socio-economic snapshot of Nillumbik and its closest neighbouring LGAs.

LGA Population Median age SEIFA IRSAD % renting % overseas-born
Nillumbik (VIC) 59,490 42.4 1090 9.1% 15.8%
Banyule 121,704 40.4 1069 26.1% 24.1%
Whittlesea 243,768 35.8 983 25.8% 37.5%
Manningham 124,763 43.1 1075 21.0% 43.5%
Yarra Ranges 156,237 40.3 1013 14.5% 16.9%
Murrindindi 15,382 50.3 972 14.1% 11.2%

Services and amenities

Frequently asked questions about Nillumbik

What is the population of Nillumbik?

The 2021 Census recorded 59,490 people living in Nillumbik, across 23 suburbs.

What suburbs are in Nillumbik?

Nillumbik contains 23 suburbs. The most populous are Eltham, Diamond Creek, Eltham North, Hurstbridge, North Warrandyte.See the full list in the Suburbs section above.

What postcodes are in Nillumbik?

Nillumbik covers 15 postcodes: 3088, 3089, 3090, 3091, 3095, 3096, 3097, 3099, 3113, 3757, 3759, 3760, 3761, 3763, 3775.

How many schools are in Nillumbik?

Nillumbik has 25 schools, including 19 government, 4 Catholic, and 2 independent schools (ACARA 2025).

What is the SEIFA score for Nillumbik?

Nillumbik has a population-weighted SEIFA IRSAD score of 1090, where the national average is 1000. Higher scores indicate more relative advantage.

Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 (IRSD, IRSAD, IER, IEO), ACARA School Profiles 2025, ABS ASGS 2021 LGA boundaries. How this data is sourced.