EquitySight.app
Free full calculator →
EquitySight.app
Free full calculator →
ABS 2021 Census · Updated 21 May 2026
Rocky Plain is a regional centre in South Australia, Australia, with a population of approximately 8, making it a boutique locality. Located approximately 113 km from the Adelaide CBD, Rocky Plain is a regional area in South Australia. The median household income is $11,700 per year.
Lower income levels in Rocky Plain typically translate to more affordable entry points for investors. Distance from major centres is a consideration, though regional markets can offer higher rental yields.
Official Australia Post postcode for Rocky Plain. A postcode may cover multiple suburbs.
Australia Post Postcode Finder →Usual resident population at the most recent census.
Weekly median rent for occupied homes. Live rental data integration coming soon.
Annual median household income (before tax) across all households.
Straight-line distance from the suburb centroid to the nearest capital city CBD. Actual driving distance will be longer.
Estimated 1 school within or near this suburb.
Find schools near Rocky Plain on My School →Estimated 1 park and green spaces near this suburb.
Monthly median mortgage repayment for households currently paying off a mortgage.
Proportion of separate houses versus units, townhouses, and other home types. Useful for investors assessing rental demand mix.
Rocky Plain is a smaller community of 8 — about 0% of the South Australia suburb median (3,699) — so investors should factor in the narrower buyer pool and longer average time-on-market. Rocky Plain's median household income of $11,700/year is 86% below the South Australia suburb median ($80,964) — this is an affordability play where returns lean on yield and patient capital growth rather than demographic premium. The median weekly rent of $100 translates to approximately $5,200/year in gross rental income, setting the upper bound on yield before vacancy, rates, insurance and maintenance. Rocky Plain is 113 km from Adelaide, so the local market tracks regional employment and lifestyle drivers more than CBD-driven commuter demand. Only 40% of dwellings are separate houses (vs 73% state median), so this is a unit-heavy market where body-corporate decisions and strata supply meaningfully shape investor returns.
How Rocky Plain stacks up against the median of all South Australia suburbs in our dataset. Positive values mean Rocky Plain sits above the state median; negative means below.
| Metric | Rocky Plain | SA median | Δ vs state |
|---|---|---|---|
| Population | 8 | 3,699 | -100% |
| Median household income | $11,700/yr | $80,964/yr | -86% |
| Median rent (weekly) | $100 | $320 | -69% |
| Distance to CBD | 113 km | 13 km | +769% |
| Separate houses | 40% | 73% | -33pp |
Pre-inspection briefing for Rocky Plain — every item is derived from public datasets, with full citations in our data sources page.
Limited buy-and-hold upside: a small population of 8 means liquidity is thin and capital growth tends to lag the wider South Australia market over full cycles.
Gross rent of $100/week (~$5,200/year) sets the yield ceiling. Cross-check against your purchase price to confirm whether this suburb hits the 4–5% gross yield most Australian investors target.
Only 40% of dwellings are separate houses (vs 73% SA median) — this is a unit and townhouse market, where cosmetic flips struggle against body-corporate restrictions, thinner after-reno uplift and competing new supply.
Run the numbers on a Rocky Plain property
Scenario comparison, cash flow analysis, tax modelling, and PDF export — all in one place.
Create free account →Capital-growth expectations for Rocky Plain are modest for 2026 — incomes 86% below the SA median of $80,964 and a population of 8 suggest gains will lag headline metro markets. Rents sit around $100/week, setting the baseline gross rental income at roughly $5,200/year — refine this against current listings before running your numbers. The EquitySight investment score of 24/100 places Rocky Plain in the lower tier of Australian suburbs we profile, and overall investor sentiment is cautious heading into the second half of 2026.
Lived in Rocky Plain? Help other investors with an honest 100-word review. Sign-in required; all reviews are manually moderated before they appear.
Rocky Plain scores 24/100 on our EquitySight investment framework — a weak rating. That score is driven by a population of 8, median household income of $11,700/year and median weekly rent of $100. Whether it fits your portfolio depends on whether you are targeting cash flow, capital growth, or a value-add renovation — all three are scored with suburb-specific numbers elsewhere on this page.
The main demand drivers in Rocky Plain are a median household income of $11,700/year, a dwelling mix that is 40% separate houses, roughly 1 schools and 1 parks within the catchment. Together these shape both owner-occupier and tenant demand and are the factors we weight most heavily in the suburb's investment score.
Rocky Plain has a usual resident population of approximately 8, compared with a South Australia suburb median of 3,699 — placing it in the lower half of the state's suburbs by size. Population is the clearest proxy for market depth: more residents mean more transactions and typically a shorter average days-on-market on resale.
Rocky Plain sits 113 km straight-line from the Adelaide CBD. This is a regional market where CBD distance is only indicative — local industry diversity and commute alternatives matter more.
The most recent census recorded a median weekly rent of $100 in Rocky Plain, equating to approximately $5,200/year in gross rental income (state median $320/week). Market rents have typically drifted above the recorded figure — verify against current listings on realestate.com.au and Domain before making an offer.
A reliable median mortgage figure was not captured for Rocky Plain. Use our loan serviceability calculator to estimate a realistic monthly repayment for your target purchase price and deposit.
Census data was not complete enough in Rocky Plain to compute a clean rent-to-mortgage coverage. Use current listings to benchmark weekly rent, then plug your expected purchase price into our rental yield calculator to see whether the investment runs cash-flow positive or negative.
The main risks are a thin buyer pool (8 residents), interest-rate sensitivity, below-median household incomes ($11,700 vs $80,964 state median), the broader South Australia market cycle. Each of these is covered in the Risk Factors section above with suburb-specific numbers rather than generic warnings.
Every number on this page comes from the ABS 2021 Census of Population and Housing, Australia Post postcode reference data, and OpenStreetMap amenity tiles. The investment score, strategy verdicts, and comparison table are computed deterministically from those inputs — no opinion, no estimation. See our full methodology and the data sources and licences for the formulas we use.