Land vs People

Country · 25 regions

Where Sri Lanka's land ends up, by people and by money

Every block on the map is 0.1% of Sri Lanka. By land, Gampaha holds 2.1%. By people, it holds 12%. Mŏṇarāgala goes the other way, from 8.7% of the land to 2.4% of the people. By GDP, Kŏḷamba punches above its population: 11% of the people, 19% of the economy.

Share of Sri Lanka by region, in percent
RegionLandPeopleGDP
Gampaha2.11214
Kŏḷamba0.901119
Kuruṇægala7.28.37.6
Mahanuvara2.96.99.1
Kaḷutara2.36.47.5
Ratnapura5.15.43.3
Gālla2.55.15.5
Anurādhapura114.64.1
Kægalla2.44.14.4
Badulla4.23.93.8
Mātara2.03.83.3
Puttalama4.93.73.2
Ampāra7.23.32.1
Nuvara Ĕliya2.93.31.0
Hambantŏṭa4.23.11.7
Mātale3.22.51.6
Yāpanaya1.42.52.5
Mŏṇarāgala8.72.41.4
Pŏḷŏnnaruva5.12.11.6
Maḍakalapuva4.01.91.5
Trikuṇāmalaya4.01.91.5
Vavuniyāva3.00.700.40
Kilinŏchchi2.10.300.10
Mannārama2.90.300.20
Mulativ3.90.100.10

How the map is made

Regions are drawn on an equal-area grid of about 1,000 blocks. For land, each region keeps the blocks its territory covers. For people and GDP, the country is reshaped so every region gets a whole number of blocks in proportion to its share (Hamilton's largest-remainder method), keeping neighbours next to each other. Then every block is matched to one block on the next map, so you watch the same thousand blocks rearrange.

Grids: popgrid by Josep Ferrer (MIT). Boundaries: Natural Earth. Population: national censuses where curated, GHS-POP 2025 (JRC, European Commission) elsewhere. GDP: Kummu et al. 2025 gridded GDP PPP (CC BY 4.0). Built by Crafter Station.