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Lachlan
New South Wales · Far West and Orana · 5,910 people · 17 suburbs · 8 postcodes
Lachlan at a glance
Map shows the Lachlan 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.
Lachlan is a Local Government Area in New South Wales, in the Sydney region. It covers 17 suburbs across 8 postcodes and an area of 13,436 km². Lachlan has a population of 5,910 , ranking #107 most populous in NSW. The most populous suburb is Condobolin (3,185 residents), and the highest median household income is in Kiacatoo at $1,812/week. The LGA-wide median household income is $1,233/week and median age is 40.5. About 4.9% of residents were born overseas and 3.6% speak a language other than English at home.
Who lives here
Age structure
Show counts
| 0–14 years | 1,248 (21.0%) |
| 15–24 years | 575 (9.7%) |
| 25–44 years | 1,363 (23.0%) |
| 45–64 years | 1,484 (25.0%) |
| 65+ years | 1,260 (21.2%) |
How they live
Housing tenure
Dwelling type mix
Work and learning
Schools in Lachlan
8 schools across Lachlan: 62.5% Government, 25.0% Catholic, 12.5% Independent. The NSW average is 69.6% / 16.9% / 13.5%. Schools here have a median ICSEA of 920 (range 834 to 978). NSW median is 1005; national mean is 1000.
Sector mix
Type breakdown
ICSEA range
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 8 schools in Lachlan, sorted by enrolment:
| School | Sector | Type | Suburb | Students | ICSEA |
|---|---|---|---|---|---|
| Condobolin Public School | Government | Primary | Condobolin | 256 | 848 |
| Lake Cargelligo Central School | Government | Combined | Lake Cargelligo | 227 | 858 |
| Condobolin High School | Government | Secondary | Condobolin | 205 | 834 |
| St Joseph's Parish School | Catholic | Primary | Condobolin | 116 | 956 |
| Tottenham Central School | Government | Combined | Tottenham | 71 | 930 |
| OneSchool Global NSW - Condobolin | Independent | Combined | Condobolin | 43 | 978 |
| St Francis Xavier's Primary School | Catholic | Primary | Lake Cargelligo | 41 | 909 |
| Tullibigeal Central School | Government | Combined | Tullibigeal | 33 | 958 |
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 Lachlan. Higher scores indicate more advantage; the national mean is 1000.
IRSAD
Relative socio-economic advantage and disadvantage
IRSD
Relative disadvantage only (lower = more disadvantaged)
IER
Economic resources: income, wealth, housing
IEO
Education and occupation: qualifications, skill levels
Suburbs in Lachlan
Lachlan contains 17 suburbs and 8 postcodes. Sorted by population.
| Suburb | Postcode | Population | Median income | Median age |
|---|---|---|---|---|
| Condobolin | 2877 | 3,185 | $1,292/wk | 39 |
| Lake Cargelligo | 2672 | 1,430 | $1,158/wk | 40 |
| Tottenham | 2873 | 451 | $937/wk | 52 |
| Tullibigeal | 2669 | 263 | $1,262/wk | 37 |
| Fifield | 2875 | 128 | $1,541/wk | 42 |
| Burcher | 2671 | 82 | $1,312/wk | 46 |
| Albert | 2873 | 77 | $1,187/wk | 50 |
| Kiacatoo | 2877 | 77 | $1,812/wk | 31 |
| Murrin Bridge | 2672 | 57 | $662/wk | 40 |
| Boona Mount | 2877 | 46 | $1,125/wk | 43 |
| Fairholme | 2871 | 43 | $1,374/wk | 38 |
| Derriwong | 2877 | 38 | $899/wk | 46 |
| Curlew Waters | 2672 | 21 | $1,649/wk | 39 |
| Miamley | 2873 | 12 | $725/wk | 56 |
| Burgooney | 2672 | |||
| Wargambegal | 2672 | |||
| Yethera | 2874 |
Postcodes covered
2669, 2671, 2672, 2871, 2873, 2874, 2875, 2877
Compare Lachlan with neighbouring LGAs
Side-by-side demographic and socio-economic snapshot of Lachlan and its closest neighbouring LGAs.
| LGA | Population | Median age | Median HH income | SEIFA IRSAD | % renting | % overseas-born |
|---|---|---|---|---|---|---|
| Lachlan (NSW) | 5,910 | 40.5 | $1,233/wk | 933 | 30.0% | 4.9% |
| Forbes | 9,348 | 42.0 | $1,278/wk | 940 | 28.4% | 4.2% |
| Carrathool | 3,394 | 37.9 | $1,595/wk | 964 | 31.0% | 12.5% |
| Bogan | 2,473 | 41.0 | $1,466/wk | 948 | 29.6% | 5.4% |
| Bland | 5,406 | 43.5 | $1,331/wk | 956 | 19.1% | 5.7% |
| Parkes | 14,271 | 40.6 | $1,351/wk | 923 | 28.8% | 5.6% |
Services and amenities
Frequently asked questions about Lachlan
What is the population of Lachlan?
The 2021 Census recorded 5,910 people living in Lachlan, across 17 suburbs.
What suburbs are in Lachlan?
Lachlan contains 17 suburbs. The most populous are Condobolin, Lake Cargelligo, Tottenham, Tullibigeal, Fifield.See the full list in the Suburbs section above.
What postcodes are in Lachlan?
Lachlan covers 8 postcodes: 2669, 2671, 2672, 2871, 2873, 2874, 2875, 2877.
What is the median household income in Lachlan?
The population-weighted median household income across Lachlan is $1,233 per week (2021 Census), ranking #100 of 130 NSW LGAs.
How many schools are in Lachlan?
Lachlan has 8 schools, including 5 government, 2 Catholic, and 1 independent schools (ACARA 2025).
What is the SEIFA score for Lachlan?
Lachlan has a population-weighted SEIFA IRSAD score of 933, 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.