Population of Casper, Wyoming as of September 2025. How many people live in Casper today?

USA / Wyoming / Casper

The exact population of Casper, Wyoming as of September 2025 is estimated at 59,038 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 Casper.

City: Casper, WY

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Check out more data on population in Wyoming:

Population of Cheyenne
Population of Green River

This population of Casper WY is provided by US bureau of statistics.
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