Merrimac (postcode 4226) sits in the central corridor of the City of Gold Coast, positioned between the Pacific Motorway and the established retail and rail hub of Robina. Its SEIFA IRSAD score of 1029 places it in national decile 8 and at the 83rd percentile within Queensland, firmly in the advantaged band and meaningfully above the national mean of 1000. That reading reflects a suburb where household incomes, educational attainment, and occupational mix sit comfortably above the state midpoint. Investors should treat this as a useful macro anchor, not a substitute for street-level due diligence.
ABS 2021 IRSAD release. Score 1029 (national mean = 1000).
A SEIFA decile 8 reading feeds directly into three of PropertyRanker's twelve scoring criteria: economic_strength, hazard_risk, and entry_point_risk. On economic_strength, the score signals a resident base with above-average capacity to sustain rents and absorb modest rate rises, which is a positive input for both capital growth and yield-focused strategies. On entry_point_risk, an advantaged postcode frame tends to compress distressed-sale frequency, which supports price floor stability over time. The hazard_risk criterion, however, is where Merrimac's macro profile carries a notable caveat. The suburb sits on floodplains in the central Gold Coast, and SEIFA cannot price that physical exposure into its reading. Flood overlay status and individual lot elevation must be verified at the title level before any SEIFA-derived comfort is applied to hazard_risk scoring. On strategy fit, houses in Merrimac have been tracking gross yields in the low-to-mid 4 percent range, which aligns loosely with a Capital Growth strategy anchor of around 3.5 percent, though units have shown yields closer to 6 percent, which edges toward a High Yield strategy frame. The suburb's owner-occupier rate has risen materially since 2016, now sitting above 63 percent, which generally supports price stability but can compress rental supply and push vacancy lower. Median house prices have moved well above the million-dollar mark in recent data, so entry cost is a real consideration for investors sizing leverage conservatively.
Merrimac's house market recorded a median sale price of $1,100,000 over the 12 months to January 2026, representing annual growth of 14.44%, according to propertyvalue.com.au (powered by Cotality/CoreLogic). There were 53 house sales in that period, with an average of 20 days on market and a vendor discount of -5.4%, reflecting tight supply conditions with a vacancy rate of just 0.39% reported by htag.com.au.
Anchor points pulled per refresh from publicly available suburb profiles. Approximate; not a moving average.
A vacancy rate of 0.39%, days on market of just 20 days, and strengthening annual price growth from 8.9% to 14.44% all point to a tightening market across all three components.
Sources: Merrimac House Prices and Property Trends (2026-01-01); Merrimac QLD 4226 Suburb Profile and Property Report (2026-01-01); Merrimac Property Market and Trends (2026-04-22); Merrimac QLD 4226 Property Market and House Prices 2026 (2026-08-01); Merrimac QLD Suburb Profile (2025-01-01) · Refreshed 15 Aug 2026
PropertyRanker scores any Australian property against 12 criteria across three pillars: Growth, Cashflow, and Risk. SEIFA is a primary signal for economic strength and a supporting one for entry-price risk. It also informs the crime side of hazard risk, though physical overlays like flood, bushfire and coastal exposure, and recorded crime data where available, take priority there. The decile of 8 shown above gives a listing in Merrimac a stronger starting line on economic strength than the national median postcode, and a softer one on entry-price risk, since more advantaged postcodes usually carry higher entry prices.
On top of that, PropertyRanker chooses one of four strategies (Balanced, Growth, Yield, Regional) and applies a per-strategy yield anchor. The anchors are 3.5% for Growth, 5% for Balanced, 6% for Yield, and 7% for Regional. A postcode at this level of relative advantage tends to suit the Growth (3.5% anchor) and Balanced (5% anchor) strategies more readily than Yield (6%) or Regional (7%), because a higher entry price compresses the gross yield a listing can reach without a specific value-add.
Read the scoring guide for the full criteria list and how the verdict thresholds work.
Before relying on the SEIFA reading as a buy signal, confirm the following at the listing level. First, check the Queensland flood mapping and any applicable Gold Coast City Council overlays for the specific lot; floodplain location is suburb-wide but individual lot risk varies significantly by elevation and drainage catchment. Second, for units and townhouses, obtain the body corporate financials and sinking fund balance, as Merrimac has a mix of older strata complexes and newer developments with very different capital expenditure profiles. Third, pull current SQM Research vacancy data for postcode 4226; Robina and Merrimac share this postcode frame, so vacancy trends reflect both suburbs together. Fourth, benchmark the asking price against recent comparable sales in the same street or complex rather than suburb-wide medians, given the wide price dispersion between canal-adjacent stock and standard residential lots. Run the specific listing through PropertyRanker to get a verdict that accounts for what this postcode-level SEIFA reading cannot see: current vacancy, body corporate health, flood and overlay status, and pricing against recent comparable sales.
A SEIFA IRSAD score of 1029, sitting in national decile 8 and at the 83rd percentile within Queensland, signals a resident base with above-average household income, educational attainment, and occupational mix. That profile feeds positively into PropertyRanker's economic_strength criterion, indicating capacity to sustain rents and absorb modest rate movements over time. It also tends to compress distressed-sale frequency, which supports price floor stability on the entry_point_risk criterion. What SEIFA cannot capture is physical hazard exposure, so the score is best treated as a useful macro anchor rather than a complete investment assessment.
The answer depends heavily on asset type. Houses in Merrimac have been tracking gross yields in a range that aligns loosely with the Capital Growth strategy anchor of around 3.5 percent, while units have shown yields that edge closer to the High Yield strategy anchor of around 6 percent. Investors pursuing capital preservation in an advantaged postcode frame may lean toward the Capital Growth framing for houses, whereas those prioritising income return may find the unit segment worth scoring against a High Yield lens. Score the specific listing on PropertyRanker to see which strategy anchor the live yield data supports.
Flood exposure is the primary gap in the macro profile. Merrimac sits on floodplains in the central Gold Coast corridor, and SEIFA is a socio-economic index that has no capacity to price physical hazard into its reading. This matters directly for PropertyRanker's hazard_risk criterion, where a decile 8 SEIFA reading offers no comfort if an individual lot carries a flood overlay. Investors should verify flood overlay status and lot elevation through the City of Gold Coast's flood mapping tool before applying any SEIFA-derived confidence to hazard_risk scoring.
The Cross River Rail project has identified a new station at Merrimac as one of three planned Gold Coast additions, which would give the suburb its own direct connection to the Queensland Rail Gold Coast line; currently the nearest rail access point is Robina station, operated by Queensland Rail on the existing Gold Coast line. Infrastructure of this kind can influence tenant demand and price floors in surrounding streets, particularly for properties within comfortable walking distance of the proposed station site. That said, planned stations carry delivery and timing risk, and investors should weight confirmed, operational infrastructure more heavily than proposed works when scoring a listing today.
PropertyRanker runs twelve scoring criteria for any listing; Merrimac's SEIFA reading of 1029 feeds directly into three of them: economic_strength, hazard_risk, and entry_point_risk. The remaining criteria draw on listing-level data including the specific gross yield, which in Merrimac will vary materially between houses (tracking loosely toward the Capital Growth anchor) and units (tracking closer to the High Yield anchor). The suburb's owner-occupier rate, now above 63 percent, and its position within the City of Gold Coast LGA also inform contextual inputs. Score the individual listing rather than the suburb average to capture how a specific asset's price, rent, and lot characteristics sit against all twelve criteria.
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