Seachange Migration, Outer Metropolitan Suburbanisation, and Marginality: The Electoral Politics of the Central Coast of New South Wales, 1949–2001

Seachanging and the expansion of suburbia led to important changes in Australia's human geography during the second half of the twentieth century. However, the implications of domestic migration on electoral politics have received only limited study. The Central Coast of New South Wales was one place where these two patterns of movement converged and which came to be routinely identified in public debate as electorally marginal. In reviewing this discursive positioning across both federal and state politics over several decades, the article examines how the region's marginality was often linked to the social mix created by migration primarily from Sydney, among which retirees and long distance commuters received particular attention as cohorts of voters. The analysis then turns to electoral competition in what was thus seen as a contestable space. This spanned national, state, and local issues and the major parties sometimes pre‐selected candidates offering very distinct value propositions. Overall, the Central Coast's regional political discourse reflected wider understandings of voting realignment seen around Australia, including changing perspectives on class, but also highlights how migration created new, formative communities where marginality was viewed as an important part of local political identity and practice.