Lewiston

Population growth drivers in Lewiston are strong compared to national averages based on AreaSearch's ranking of recent, and medium to long-term trends

As of Nov 2025, Lewiston's population is estimated at around 3,706. This reflects an increase of 431 people since the 2021 Census figure of 3,275. AreaSearch validated this estimate by examining latest ERP data release by ABS (June 2024) and adding 117 new addresses since the Census date. Lewiston's population density is around 90 persons per square kilometer. Between 2021 and Nov 2025, Lewiston grew by 13.2%, exceeding state growth of 7.1%. Interstate migration contributed approximately 79.0% to this growth.

AreaSearch uses ABS/Geoscience Australia projections for SA2 areas (released in 2024 with a base year of 2022), and State Government's Regional/LGA projections for other years post-2032. Lewiston is predicted to grow by 2,005 persons to 2041, reflecting a 59.3% increase over the period.

AreaSearch assessment of residential development activity positions Lewiston among the top 25% of areas assessed nationwide

Based on AreaSearch analysis of ABS building approval numbers, allocated from statistical area data, Lewiston has averaged around 44 new dwelling approvals per year over the past five financial years, totalling an estimated 222 homes. So far in FY-26, 13 approvals have been recorded. With an average of 3.8 people moving to the area for each dwelling built between FY-21 and FY-25, supply is substantially lagging demand, indicating heightened buyer competition and pricing pressures. New properties are constructed at an average value of $400,000.

There have also been $3.0 million in commercial approvals this financial year, suggesting limited commercial development focus compared to Greater Adelaide where Lewiston maintains similar construction rates per person, significantly above the national average, indicating robust developer interest. Recent building activity consists entirely of detached houses, preserving the area's low density nature and attracting space-seeking buyers at around 90 people per approval. According to AreaSearch's latest quarterly estimate, Lewiston is projected to add 2,196 residents by 2041, with development keeping reasonable pace with projected growth despite increasing buyer competition as population expands.

Future projections show Lewiston adding 2,196 residents by 2041 (from the latest AreaSearch quarterly estimate). Development is keeping reasonable pace with projected growth, though buyers may face increasing competition as the population expands.

Lewiston has emerging levels of nearby infrastructure activity, ranking in the 29thth percentile nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified one major project likely affecting this region: Virginia Township Expansion, Riverbanks Estate, Angle Vale, Trinity College Gawler River / Angle Vale Campus, and Riverlea Masterplanned Community. Most relevant projects are detailed below.

Professional plan users can use the search below to filter and access additional projects.

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The labour market in Lewiston shows considerable strength compared to most other Australian regions

Lewiston's workforce is balanced across white and blue collar jobs. The construction sector stands out with a high representation, an unemployment rate of 2.9%, and estimated employment growth of 1.5% over the past year (AreaSearch, June 2025).

As of this date, 2,113 residents are employed, with an unemployment rate at 1.1% below Greater Adelaide's rate of 4.0%. Workforce participation is similar to Greater Adelaide's at 66.5%. Key employment sectors include construction, health care & social assistance, and retail trade. Construction shows strong specialization with an employment share of 1.7 times the regional level.

Conversely, health care & social assistance has lower representation at 12.7% compared to the regional average of 17.7%. Employment opportunities locally appear limited based on Census data comparison of working population vs resident population. Over a 12-month period ending June 2025, employment increased by 1.5%, labour force grew by 1.3%, and unemployment fell by 0.2 percentage points (AreaSearch analysis of SALM and ABS data). In contrast, Greater Adelaide recorded employment growth of 2.1% with a marginal rise in unemployment. Jobs and Skills Australia's national employment forecasts from Sep-22 project overall employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Lewiston's employment mix suggests local employment should increase by 5.8% over five years and 12.3% over ten years, based on a simple weighting extrapolation for illustrative purposes.

Income levels align closely with national averages, indicating typical economic conditions for Australian communities according to AreaSearch analysis

AreaSearch's latest postcode level ATO data for financial year 2022 shows Lewiston's median income among taxpayers is $50,824. The average income in Lewiston during this period was $58,779. This is below the national average. In Greater Adelaide, the median income was $52,592 with an average of $64,886. Based on Wage Price Index growth of 12.83% since financial year 2022, current estimates for Lewiston's median and average incomes would be approximately $57,345 and $66,320 respectively as of September 2025. According to the 2021 Census figures, household income in Lewiston ranks at the 59th percentile with a weekly income of $1,910. Personal income ranks at the 42nd percentile. The predominant income cohort in Lewiston spans 40.6% of locals (1,504 people), falling within the $1,500 - $2,999 weekly category. This is consistent with broader trends across the broader area showing 31.8% in the same category. After housing expenses, 85.6% of income remains for other expenses. Lewiston's SEIFA income ranking places it in the 4th decile.

Lewiston is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region

Lewiston's dwelling structures, as per the latest Census, consisted of 99.6% houses and 0.4% other dwellings (semi-detached, apartments, 'other' dwellings). This contrasts with Adelaide metro's composition of 86.9% houses and 13.1% other dwellings. Home ownership in Lewiston stood at 28.5%, with mortgaged dwellings at 65.2% and rented ones at 6.3%. The median monthly mortgage repayment was $1,690, higher than Adelaide metro's average of $1,500. The median weekly rent in Lewiston was $330, compared to Adelaide metro's $290. Nationally, Lewiston's mortgage repayments were lower than the Australian average of $1,863, and rents were substantially below the national figure of $375.

Lewiston features high concentrations of family households, with a higher-than-average median household size

Family households constitute 80.4% of all households, including 42.2% couples with children, 28.9% couples without children, and 8.9% single parent families. Non-family households account for the remaining 19.6%, with lone person households at 17.1% and group households comprising 2.3%. The median household size is 2.9 people, larger than the Greater Adelaide average of 2.5.

The educational profile of Lewiston exceeds national averages, with above-average qualification levels and academic performance metrics

The area has university qualification rates of 9.6%, significantly lower than Australia's average of 30.4%. This disparity presents both challenges and opportunities for targeted educational initiatives. Bachelor degrees are the most common at 6.6%, followed by graduate diplomas (1.6%) and postgraduate qualifications (1.4%). Trade and technical skills are prevalent, with 41.7% of residents aged 15+ holding vocational credentials – advanced diplomas (8.9%) and certificates (32.8%).

Educational participation is high, with 26.0% of residents currently enrolled in formal education. This includes 10.1% in primary education, 8.3% in secondary education, and 3.1% pursuing tertiary education. School facilities seem to be located outside the immediate catchment boundaries, necessitating families to access schools in neighboring areas.

No public transport data available for this catchment area.

Health performance in Lewiston is lower than average with prevalence of common health conditions notable across both younger and older age cohorts

Lewiston faces significant health challenges, with common health conditions prevalent across both younger and older age cohorts. The rate of private health cover is relatively low at approximately 50% of the total population (~1,862 people), compared to the national average of 55.3%.

The most common medical conditions are arthritis and asthma, impacting 9.6 and 9.4% of residents respectively. Conversely, 65.9% of residents declare themselves completely clear of medical ailments, compared to 62.3% across Greater Adelaide. The area has 12.8% of residents aged 65 and over (474 people), which is lower than the 19.0% in Greater Adelaide. Health outcomes among seniors present some challenges, broadly in line with the general population's health profile.

Lewiston ranks below the Australian average when compared to other local markets across a number of language and cultural background related metrics

Lewiston's cultural diversity was found to be below average. It had 84.4% of its population born in Australia, with 92.4% being citizens and 95.1% speaking English only at home. Christianity was the predominant religion in Lewiston, comprising 38.8% of people.

Buddhism's representation stood out at 1.1%, higher than Greater Adelaide's 0.8%. The top three ancestry groups were English (34.0%), Australian (31.3%), and Scottish (7.0%). Notably, German (5.6%) and Dutch (1.8%) were overrepresented compared to regional averages of 6.7% and 1.5%, respectively. Maltese also had a higher representation at 0.9% versus the region's 0.5%.

Lewiston hosts an older demographic, ranking in the top quartile nationwide

The median age in Lewiston is 41 years, which is higher than Greater Adelaide's average of 39 years and exceeds the national average of 38 years. The age profile shows that individuals aged 55-64 are particularly prominent, making up 15.8% of the population, while those aged 25-34 make up a smaller proportion at 11.0%. Between 2021 and present, the median age has decreased by 1 year from 42 to 41 years, indicating a shift towards a younger demographic. During this period, the 35-44 age group has grown from 11.6% to 13.6% of the population, while the 45-54 cohort has declined from 18.3% to 15.9%. Population forecasts for the year 2041 indicate significant demographic changes in Lewiston. Notably, the 45-54 age group is projected to grow by 65%, increasing from 589 to 974 people.