Population of Rapid City, South Dakota as of September 2025. How many people live in Rapid City today?

USA / South Dakota / Rapid City

The exact population of Rapid City, South Dakota as of September 2025 is estimated at 74,703 residents. Please note: this figure is an estimate and may slightly change as people get born and pass away, it also depends on migration to/from Rapid City.

Population of Rapid City, SD

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Check out more data on population in South Dakota:

Population of Brookings
Population of Yankton
Population of Vermillion

This population of Rapid City SD is provided by US bureau of statistics.
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