Located 237 kilometers west-northwest from the Adelaide CBD, the suburb of Tumby Bay is a coastal community characterized by moderate population growth and affordable housing options. Based on Districts' analysis of yearly SA2-level Estimated Resident Population counts and quarterly national address file updates, the population of the suburb of Tumby Bay is estimated at approximately 1,859 as of May 2026. This represents a 4.4% increase of 78 residents since the 2021 Census, which recorded 1,781 people. The local housing market is defined by high levels of outright home ownership and a low median household size, with households consisting largely of lone individuals and couples without children. Demographic patterns also show a notable presence of older residents, including an elevated proportion of people aged 75 to 84 and a significant cohort aged 85 and over, who typically have lower educational attainment and income levels in the lower national quartile, though families in the area tend to have an above-average number of children. Renowned for its picturesque landscapes, pristine beaches, and rich biodiversity, the suburb of Tumby Bay serves as a haven for nature lovers. The region boasts a diverse array of unique flora and fauna, featuring native wildlife, marine species, and migratory birds. The surrounding azure waters of the peninsula support a variety of popular water activities, including surfing, snorkeling, and fishing, while the unspoiled coastline and natural wilderness provide opportunities for hiking, camping, and wildlife observation. Comprising small coastal towns and welcoming local communities, the area offers a blend of rugged natural beauty and warm hospitality.
Estimated residents are up from 1,781 at the 2021 Census — a change of 78 people, or 4.4%.