1987 Delimitation of Sarawak (DUN)

Last updated: 30 Dec 2025

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

-- views-- downloads
CC0

Download (56 features x 5 attributes)

FormatSizeDownloadLink
GeoJSON
197 KB
GeoParquet
97 KB
TopoJSON
124 KB
FlatGeoBuf
128 KB
KML
314 KB

Programmatic Access

import geopandas as gpd

URL = "https://lake.electiondata.my/maps/delimitations/sarawak_1987_dun.parquet"

gdf = gpd.read_parquet(URL)
print(gdf.shape)   # (56, 5)
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}
}