1987 Delimitation of Sarawak (Parliament)

Last updated: 30 Dec 2025

Boundaries of parliamentary constituencies in Sarawak following the 1987 delimitation exercise.

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Download (27 features x 3 attributes)

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GeoJSON
156 KB
GeoParquet
78 KB
TopoJSON
102 KB
FlatGeoBuf
100 KB
KML
241 KB

Programmatic Access

import geopandas as gpd

URL = "https://lake.electiondata.my/maps/delimitations/sarawak_1987_parlimen.parquet"

gdf = gpd.read_parquet(URL)
print(gdf.shape)   # (27, 3)
print(gdf.crs)
gdf

Cite

Users wishing to reference this dataset in an academic context should cite Thevananthan and Chacko (2025), which documents the digitisation and validation of the boundary data.

APA

Thevananthan, T., & Chacko, D. P. (2025). The Malaysian Election Corpus (MECo): Electoral Maps and Cartograms from 1954 to 2025. arXiv preprint arXiv:2512.24211.

Harvard

Thevananthan, T. and Chacko, D.P. 2025, The Malaysian Election Corpus (MECo): Electoral Maps and Cartograms from 1954 to 2025. arXiv preprint arXiv:2512.24211.

MLA

Thevananthan, Thevesh, and Chacko, Danesh Prakash. "The Malaysian Election Corpus (MECo): Electoral Maps and Cartograms from 1954 to 2025." arXiv preprint arXiv:2512.24211 (2025).

Chicago

Thevananthan, Thevesh, and Chacko, Danesh Prakash. "The Malaysian Election Corpus (MECo): Electoral Maps and Cartograms from 1954 to 2025." arXiv preprint arXiv:2512.24211 (2025).

BibTeX

@article{thevananthan2025malaysian,
  author  = {Thevananthan, Thevesh and Chacko, Danesh Prakash},
  title   = {The Malaysian Election Corpus (MECo): Electoral Maps and Cartograms from 1954 to 2025},
  journal = {arXiv preprint arXiv:2512.24211},
  year    = {2025}
}