02Act II · 1:1 studio

Which is bigger: California or Texas?

Texas is larger: 691,133 km² versus 410,805 km² for California, or about 68% more.

Both areas at the same scale: California and Texas. Drag the outlines, separate them and see what the Mercator map hides.

True-size comparison

Same scale. Real difference.

Drag the outlines to overlap them, or place them side by side.

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A

California

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Land and inland water410,805 km²2010
Census total area423,967 km²2010
Land area403,466 km²2010
TypeUS state

US state. The comparison uses land and inland water (lakes, rivers) from the Census Bureau's 2010 figures, without coastal, territorial or Great Lakes water.

Area source: U.S. Census Bureau (2010)

B

Texas

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Land and inland water691,133 km²2010
Census total area695,662 km²2010
Land area676,587 km²2010
TypeUS state

US state. The comparison uses land and inland water (lakes, rivers) from the Census Bureau's 2010 figures, without coastal, territorial or Great Lakes water.

Area source: U.S. Census Bureau (2010)

03 · Verdict

What the map gets wrong

True area tells a different story than the Mercator map.

True area ratio1.7×Larger in reality: Texas.
Mercator: estimate at the area’s center1.5×Looks larger on a Mercator map: Texas.
Why does this happen?

The Mercator projection enlarges areas more and more the farther they lie from the equator. The centers of the two areas lie about 37° (California) and 31° (Texas) from the equator. An estimate based on each center’s latitude gives an area ratio of 1.5 : 1, compared with the real ratio of 1.7 : 1. This is not a measurement of the entire outlines on a Mercator map.

Tip: You can also compare these items dynamically by clicking the link below and dragging them directly across the global interactive map.

Each figure is the area described beside its subject, from the source listed there. The overlay uses an equal-area projection. Coastal outlines are simplified and do not include all waters counted in the statistics. Their area ratio can therefore differ from the ratio of official total areas. Geometry: Natural Earth, public domain. Read the methodology ↗

Why do California and Texas look different on a Mercator map than in reality?

The Mercator projection preserves angles, which makes it useful for navigation, but it enlarges areas more and more the farther they lie from the equator. At 60° latitude, areas already appear four times larger than at the equator. A same-scale comparison like the one on this page greatly reduces that distortion.

How big is California in square kilometres?

California covers 410,805 km² of land and inland water (lakes, rivers), including 403,466 km² of land. The Census Bureau also gives a total area of 423,967 km², which adds coastal and territorial water. The comparison uses the first figure because it matches the outline on the map. Source: U.S. Census Bureau, 2010.

How big is Texas in square kilometres?

Texas covers 691,133 km² of land and inland water (lakes, rivers), including 676,587 km² of land. The Census Bureau also gives a total area of 695,662 km², which adds coastal and territorial water. The comparison uses the first figure because it matches the outline on the map. Source: U.S. Census Bureau, 2010.