Original MapBench study · 2026-10-14
Which Countries Span the Most Longitude?
We compare country bounding boxes in the world-atlas/Natural Earth geometry dataset and rank the widest non-antimeridian longitude spans.
What the ranking shows
This compares west-to-east bounding-box span in degrees for geometries that do not require antimeridian handling.
Russia ranks first in the filtered comparison at about 170.4° of longitude.
| Rank | Country | Longitude span | West | East |
|---|---|---|---|---|
| 1 | Russia | 170.44° | 19.66° | -169.90° |
| 2 | United States of America | 104.83° | -171.79° | -66.97° |
| 3 | Canada | 88.35° | -141.00° | -52.65° |
| 4 | France | 64.08° | -54.52° | 9.56° |
| 5 | China | 61.35° | 73.68° | 135.02° |
| 6 | Greenland | 61.09° | -73.30° | -12.21° |
| 7 | Indonesia | 45.74° | 95.29° | 141.03° |
| 8 | Kazakhstan | 40.89° | 46.47° | 87.36° |
| 9 | Australia | 40.23° | 113.34° | 153.57° |
| 10 | Brazil | 39.25° | -73.99° | -34.73° |
| 11 | Mongolia | 32.02° | 87.75° | 119.77° |
| 12 | Mexico | 30.32° | -117.13° | -86.81° |
| 13 | India | 29.23° | 68.18° | 97.40° |
| 14 | Norway | 26.30° | 4.99° | 31.29° |
| 15 | Saudi Arabia | 21.04° | 34.63° | 55.67° |
| 16 | Algeria | 20.69° | -8.69° | 12.00° |
| 17 | Argentina | 19.79° | -73.41° | -53.63° |
| 18 | Iran | 19.21° | 44.11° | 63.32° |
| 19 | Malaysia | 19.09° | 100.09° | 119.18° |
| 20 | Dem. Rep. Congo | 18.99° | 12.18° | 31.17° |
Method
We use d3-geo bounds and exclude spans greater than 180° to avoid treating antimeridian-wrapping geometry as a simple west-to-east box.
Important caveat
These country rankings use generalized world-atlas/Natural Earth geometry intended for small-scale mapping. Polygon area, bounds and centroid can differ from official national statistics because coastlines, islands, disputed boundaries and geometry detail are represented differently.
Use these results as a reproducible comparison of one consistent public world geometry dataset, not as a replacement for official land-area or legal-boundary figures.
Reproduce the measurements
Use MapBench tools and the downloadable dataset to check individual values or reproduce the ranking.