<b>Spatially consistent annual Socio-Economic Indexes for Areas (SEIFA) data for Australian statistical areas, 1996 – 2021</b>

National census data are frequently used to derive area-level socioeconomic indexes, such as the Australian Bureau of Statistics Socio-Economic Indexes for Areas (SEIFA). However, these indexes are often limited for longitudinal analysis due to infrequent data collection and changes to administrative census boundaries. This dataset provides annual SEIFA data standardised to 2021 Statistical Area 1 (SA1) boundaries, offering spatially and temporally consistent data from 1996 to 2021. The dataset includes 59,421 SA1s, excluding areas without SEIFA data for any census year. This dataset addresses key challenges in tracking area-level socioeconomic changes over time and enhances the utility of census data for longitudinal research.人口普查数据常被用于构建区域层面的社会经济指数，例如澳大利亚统计局推出的区域社会经济指数（Socio-Economic Indexes for Areas，SEIFA）。然而，由于普查数据采集频次偏低且行政普查边界发生调整，此类指数在纵向分析中的应用常受局限。本数据集提供了统一适配2021年统计区域1（SA1）行政边界的年度SEIFA数据，可提供1996年至2021年间时空一致的观测数据。本数据集涵盖59421个SA1区域，剔除了任意普查年份均无SEIFA数据的地理单元。本数据集解决了长期追踪区域层面社会经济变迁过程中的核心难题，同时提升了普查数据在纵向研究中的应用价值。