Harlin flood map & planning overlays
A planning-constraint profile of Harlin
(Somerset Regional, QLD) - 255.68 km², mapped from live council and
state overlay data. This suburb is highly constrained.
Profile updated 19 September 2026.
Suburb-wide figures; the free map shows which overlays touch your lot.
Constraint readout
255.68 km² - this suburb is highly constrained by planning overlays.
Elevation hillshade with street names, clipped to Harlin's boundary, with the flood, bushfire and environmental overlays drawn on top.
Nearby suburbs, nearest first
Harlin at a glance
Schools in and near Harlin
Public school-location data shows availability across the suburb. These figures do not rate schools and do not assign a particular address to a catchment.
Inside the suburb boundary
1 school providing primary years and 0 providing secondary years. A combined school may be counted in both teaching levels.
Nearest school availability
Primary: inside the suburb
Secondary: 7.74 km from the suburb boundary
Source: Queensland Government school geographic information. Catchment boundaries can divide a suburb and change over time; use the official catchment finder for a specific address.
How Harlin is zoned
We don't yet hold the planning scheme zoning for Harlin, so this page can't show its zone mix. That is a gap in our data, not an absence of zoning - every lot in Harlin sits in a zone under the Somerset Regional planning scheme, and Somerset Regional is the authority to check it with. The other overlays on this page are unaffected.
Across its 255.68 km², Harlin is highly constrained by planning overlays. Flood mapping covers the suburb and none of it falls within a mapped flood overlay, and 50% is flagged bushfire-prone. There is 1 heritage-listed site on record. The median lot measures about 181,043 m² across 496 parcels.
Who lives in Harlin
Census 2021 figures published by the ABS for the Harlin suburb boundary itself, not a wider region.
Socio-economic standing
ABS SEIFA 2021 ranks every Australian suburb. Decile 1 is the most disadvantaged tenth of the country, decile 10 the least.
Score 950, and decile 4 within Queensland. The national average is 1000.
Age profile
Share of Harlin's 211 residents in each ABS age band.
Population trend, 2001 to 2025
Estimated resident population of Kilcoy, the wider ABS statistical area containing Harlin. There is no annual population series published at suburb level, so this describes the surrounding area rather than Harlin itself.
4,029 in 2001 to 6,216 in 2025, up 54%.
Source: ABS Census 2021 and SEIFA 2021 (Suburbs and Localities), Regional Population (SA2), CC BY 4.0. Small counts are randomly adjusted by the ABS.
Harlin data sources and coverage
“Not mapped” means we hold no source layer for this suburb - never an all-clear.
| Dataset | Coverage | Publisher |
|---|---|---|
| Flood mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Bushfire-prone mapping | Mapped | the relevant council planning scheme and Queensland Government spatial data |
| Zoning | Not mapped | the relevant council planning scheme and Queensland Government spatial data |
| Heritage and environment | Mapped where published | the relevant council planning scheme and Queensland Government spatial data |
| Aircraft noise contours (ANEF) | Not held | the relevant council planning scheme and Queensland Government spatial data, Defence |
| Demographics | Available | Australian Bureau of Statistics (2021 Census and SEIFA) |
| School availability | Available | Queensland Government |
Profile last materially updated 19 September 2026. See the methodology and full source list. Source data changes over time and critical decisions should be checked with the responsible authority.
Check a specific Harlin address
See exactly which overlays touch a single property - the interactive map is free. Need it on paper? A full planning PDF is just $9.
Published flood models are held over parts of Harlin. The free check tells you whether one reaches an address; where it does, a Flood Model Report is +$9 with the planning report.
Building or pricing a slab? The $119 geotechnical desktop report covers geology, soils, bores and an indicative AS 2870 site class for a Harlin lot.
See what's in the $9 report →Harlin planning - frequently asked
Is Harlin flood-prone?
Flood mapping covers Harlin and none of the suburb falls within a mapped flood overlay (the council-wide suburb average is 2%).
Is Harlin bushfire-prone?
Around 50% of Harlin is mapped as bushfire-prone, compared with a Somerset Regional average of 54%.
What is the zoning in Harlin?
We don't yet hold the planning scheme zoning for Harlin, so this page can't say how it is zoned - that is a gap in our data, not an absence of zoning. Somerset Regional publishes the zone maps for this area.
Does Harlin have heritage-listed places?
Harlin has 1 heritage-listed place on record.
What is the typical lot size in Harlin?
Across 496 surveyed parcels in Harlin, the median lot size is about 181,043 m². There are also 57 registered easements mapped in the suburb.
What is the population of Harlin?
At the 2021 Census Harlin had 211 usual residents, with a median age of 48 and an average household size of 2.5 people. The wider Kilcoy statistical area, which contains Harlin, went from 4,029 people in 2001 to 6,216 in 2025, up 54%.
Is Harlin an advantaged suburb?
On the ABS SEIFA 2021 index of relative socio-economic advantage and disadvantage (IRSAD), Harlin scores 950 and sits in decile 3 of 10 nationally and decile 4 within Queensland (decile 1 is the most disadvantaged tenth, decile 10 the least).
What is the median household income in Harlin?
Median household income in Harlin was $1,125 a week at the 2021 Census, against $1,312 for the typical suburb in Somerset Regional. Median rent was $240 a week and the median mortgage repayment $1,300 a month.
Compare nearby suburbs
| Nearby suburb | Distance | Flood mapped | Bushfire-prone |
|---|---|---|---|
| Yimbun | 7.1 km | Not mapped | 51% |
| Gregors Creek | 8.2 km | Not mapped | 44% |
| Braemore | 8.4 km | Not mapped | 51% |
| Scrub Creek | 9.6 km | Not mapped | 55% |
| Ivory Creek | 10.7 km | Not mapped | 74% |
| Colinton | 12.8 km | 0% | 65% |
| Moore | 12.9 km | 0% | 65% |
| Fulham | 14.1 km | Not mapped | 50% |
| Toogoolawah | 14.6 km | Not mapped | 26% |
| Cressbrook | 14.6 km | Not mapped | 17% |