Electoral boundaries in Malaysia are not publicly available in machine-readable form. This prevents rigorous analysis of geography-centric issues such as malapportionment and gerrymandering, and constrains spatial perspectives on electoral outcomes. We present the second component of the Malaysian Election Corpus (MECo), an open-access collection of digital electoral boundaries covering all 19 approved delimitation exercises in Malaysia's history, from the first set of Malayan boundaries in 1954 until the 2019 Sabah delimitation. We also auto-generate election-time maps for all federal and state elections up to 2025, and include equal-area and electorate-weighted cartograms to support deeper geospatial analysis. This is the first complete, publicly-available, and machine-readable record of Malaysia's electoral boundaries, and fills a critical gap in the country's electoral data infrastructure.

翻译：马来西亚的选举边界尚未以机器可读形式公开。这阻碍了对选区划分不公与杰利蝾螈等地理中心议题的严谨分析，并限制了对选举结果的空间视角研究。本文介绍马来西亚选举语料库（MECo）的第二部分——这是一个开放获取的数字选举边界数据集，涵盖马来西亚历史上全部19次已获批准的选区划分，时间跨度从1954年马来亚首套边界直至2019年沙巴选区划分。我们同时自动生成了截至2025年所有联邦与州级选举的选举地图，并纳入等面积选区与选民加权变形地图以支持更深层次的地理空间分析。这是马来西亚首套完整、公开可用且机器可读的选举边界记录，填补了该国选举数据基础设施的关键空白。