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Earth City, MO ZIP code

The ZIP code for Earth City, Missouri is 63045. It is in St. Louis County.

Population in these ZIPs
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Avg. median income
—population-weighted
Typical home value
—population-weighted
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ZIP codes within 10 miles

Earth City, MO ZIP code list

Earth City, MO ZIP codes
ZIP codePopulationMedian incomeTypical home value
630450——

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

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Frequently asked questions

What is the ZIP code for Earth City, MO?

The ZIP code for Earth City, MO is 63045.

What county is Earth City, Missouri in?

Earth City ZIP codes are in St. Louis County.