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How the crowd draws

31 drawings of its land border and 47 drawings of its coast, from memory on Borderline’s Mexico map, 18 October 2026 to 28 October 2026.

Draw Sinaloa

In numbers

Last updated on 28 October 2026
The real oneThe crowd’s
Area58,000 km²22,000 sq mi64,000 km²25,000 sq mi11.4% bigger
Outline1,743 km1,083 mi1,670 km1,037 mi4.2% shorter
Centre107.49° W, 24.99° N107.5° W, 25.0° N107.23° W, 24.81° N107.2° W, 24.8° N33 km south-east21 mi south-east
Westernmost109.44° W, 25.96° N109.4° W, 26.0° N109.28° W, 26.34° N109.3° W, 26.3° N16 km short10 mi short
Easternmost105.40° W, 23.09° N105.4° W, 23.1° N105.34° W, 22.89° N105.3° W, 22.9° N5 km beyond3 mi beyond
Southernmost105.70° W, 22.47° N105.7° W, 22.5° N105.63° W, 22.35° N105.6° W, 22.4° N13 km beyond8 mi beyond
Northernmost108.24° W, 27.04° N108.2° W, 27.0° N108.28° W, 26.89° N108.3° W, 26.9° N17 km short10 mi short

Near the land border, 35% of the crowd’s lines run inside Sinaloa. Near the coast, 49% run inland.

Borders and 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 INEGI (coasts, islands left out), 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.

Sinaloa’s coast: 621 km in the game, 622 km officially.

4 neighbours
Border withIn the gameThe crowd’s
Durango520 km in the game471 km the crowd’s9.4% shorter
Chihuahua336 km in the game286 km the crowd’s14.9% shorter
Sonora170 km in the game146 km the crowd’s14.1% shorter
Nayarit145 km in the game212 km the crowd’s46.2% longer
The coast621 km in the game622 km officially586 km the crowd’s5.6% shorter

Watch the drawings

See every line on The Drawn Mexico →
The worst 20% and the best 20%By how close a drawing comes to the stateDownload (0.3 MB)
Not enough drawings yet
Another country and MexicoFrom where are you from; no answer left out8 of 10 drawings from another country needed
The fastest and the slowest thirdBy time spent drawingDownload (0.4 MB)
Quickest and slowest to startBy time before the first lineDownload (0.4 MB)
Where drawings start and endStarts teal, ends pink, piled up blackDownload (0.1 MB)
The drawings stacked as blocksWhere many drawings pass, the stack growsDownload (1.7 MB)

How it is measured

The crowd’s Sinaloa: every few km along the real line, each drawing’s nearest point, inside Sinaloa 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 78 drawings that scored 10 or more on Borderline’s Mexico 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.

Measuring how far the crowd moves the centre was Matt Forrest’s idea (forrest.nyc).

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