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The Big Pump is a 1937 service-station building shaped like a giant gasoline pump, which Missouri tourism places on the Tri-County Museum grounds in King City, Missouri. Missouri tourism describes it as 25 feet high; Fox 2 gave 21 feet in 2024.
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World's Largest Gas Pump
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Site-level location · 40.0517° N, 94.5266° W
FIELD GUIDE
The story
The Big Pump at King City, Missouri, is a service-station building shaped like a gas pump. Fox 2 reported in 2024 that the giant gas pump was introduced in 1937 and houses a service station office and two small bathrooms. According to Fox 2, it stood in Maryville until the 1979 fuel strike; Maryville wanted to tear it down, but it was saved and moved 40 miles to King City.
Missouri's tourism listing places it on the grounds of the Tri-County Museum, which it describes as including the old King City train depot and a chapel, with a blacksmith shop, general store and post office among the exhibits. It calls the pump a 25-foot-high building built to resemble an electric gasoline pump. Fox 2 gives its height as 21 feet.
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PRACTICAL
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WHAT TO EXPECT
Missouri's 2025 tourism listing places the Big Pump on the grounds of the Tri-County Museum, which it describes as also having a depot, chapel, general store and post office. It gives the season as Memorial Day through Labor Day, with guided tours by appointment and free admission.
ACCESS
On the Tri-County Museum grounds on North Grand Avenue in King City, Missouri. Missouri's tourism listing describes the museum as open seasonally, Memorial Day through Labor Day each year, with guided tours by appointment.
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