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How the crowd draws

254 drawings of its coast, from memory on Borderline’s World map, 23 September 2026 to 27 October 2026.

Draw Jamaica

In numbers

Last updated on 27 October 2026
The real oneThe crowd’s
Area11,000 km²4,272 sq mi10,000 km²4,037 sq mi5.5% smaller
Outline641 km398 mi557 km346 mi13.2% shorter
Centre77.32° W, 18.16° N77.3° W, 18.2° N77.33° W, 18.18° N77.3° W, 18.2° N2 km north-west2 mi north-west
Westernmost78.37° W, 18.26° N78.4° W, 18.3° N78.32° W, 18.27° N78.3° W, 18.3° N5 km short3 mi short
Easternmost76.19° W, 17.91° N76.2° W, 17.9° N76.24° W, 17.92° N76.2° W, 17.9° N5 km short3 mi short
Southernmost77.16° W, 17.70° N77.2° W, 17.7° N77.21° W, 17.81° N77.2° W, 17.8° N12 km short7 mi short
Northernmost77.82° W, 18.52° N77.8° W, 18.5° N77.80° W, 18.52° N77.8° W, 18.5° N1 km short1 mi short

Near the coast, 53% run inland.

Coast

Why two lengths?

A line’s length depends on how closely it is drawn. The game’s lines are simplified: they keep a point every few kilometres and cut across small bends. The official lengths, from the CIA World Factbook, are measured on other lines. A border measured on a finer line, following every bend of its rivers and ridges, comes out longer.

Coasts differ most, and either way. Some official coastlines follow every inlet and island (Canada’s 202,080 km); others are smoothed on purpose, crossing bays and sounds (the United States’ 19,924 km), and can come out shorter than the game’s.

Players draw against the game’s line and are scored against it, so the crowd’s length is compared with the game’s, both measured the same way. Set against an official length measured another way, the comparison would say more about the two methods than about the crowd.

Jamaica’s coast: 650 km in the game, 1,022 km officially.

Border withIn the gameThe crowd’s
The coast650 km in the game1,022 km officially564 km the crowd’s13.2% shorter

How it is measured

The crowd’s Jamaica: every few km along the real line, each drawing’s nearest point, inside Jamaica or outside it; the median over a short stretch is where the crowd puts the line there, and the real outline moved by it is the crowd’s. Where the move folds a narrow inlet over itself, the loop is cut.

The 254 drawings that scored 10 or more on Borderline’s World map, scribbles left out, the real line the game’s own. Area true to scale; the outline copies the real line’s detail, so its length changes only where the shape moves or a loop is cut.

Draw Jamaica yourself and add your line to the next update.