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Cheyenne population

Cheyenne, Wyoming had an estimated 66,507 residents on July 1, 2025, the 536th-largest city in the US. That is up 11.8% since the 2010 Census and up 24.7% since 2000.

CheyenneWyomingPop. 66,507
Population, July 2025
66,507+1.7% since April 2020
People per sq mile
1,82336.5 sq mi of land
Median age
38.918.2% are 65 or older
Households with kids
26.9%with anyone under 18

Population by year, 2000 to 2025

45k50k56k61k67k2000: 53,34920002001: 53,9342002: 54,33220022003: 54,8522004: 55,69320042005: 55,8452006: 56,46820062007: 56,9582008: 57,82920082009: 58,6582010: 59,46620102011: 60,1802012: 61,45320122013: 62,1552014: 62,31720142015: 62,9642016: 63,53020162017: 63,6462018: 64,07620182019: 64,4592020: 65,38620202021: 65,3352022: 64,82620222023: 65,4102024: 65,77320242025: 66,5072025
Darker bars are the April 2000, 2010 and 2020 benchmarks; the rest are July 1 estimates. Source: US Census Bureau population estimates (intercensal 2000-2010, Vintage 2020 and Vintage 2025).
YearPopulationChangeBasis
202566,507+734Estimate, July 1
202465,773+363Estimate, July 1
202365,410+584Estimate, July 1
202264,826-509Estimate, July 1
202165,335-51Estimate, July 1
202065,386+927April 2020 estimates base
201964,459+383Estimate, July 1
201864,076+430Estimate, July 1
201763,646+116Estimate, July 1
201663,530+566Estimate, July 1
201562,964+647Estimate, July 1
201462,317+162Estimate, July 1
201362,155+702Estimate, July 1
201261,453+1,273Estimate, July 1
201160,180+714Estimate, July 1
201059,466+8082010 Census (April 1)
200958,658+829Estimate, July 1
200857,829+871Estimate, July 1
200756,958+490Estimate, July 1
200656,468+623Estimate, July 1
200555,845+152Estimate, July 1
200455,693+841Estimate, July 1
200354,852+520Estimate, July 1
200254,332+398Estimate, July 1
200153,934+585Estimate, July 1
200053,349April 2000 estimates base

Year-to-year changes across 2010 and 2020 mix census counts with estimates, so small jumps at those years are partly method changes.

Frequently asked questions

What is the population of Cheyenne in 2025?

The Census Bureau estimates Cheyenne had 66,507 residents on July 1, 2025, making it the 536th-largest city in the US.

Is Cheyenne growing?

Yes. Cheyenne has grown 11.8% since the 2010 Census (59,466 people), and grown 1.7% since 2020.

What was the population of Cheyenne in 2000?

About 53,349 (the Census Bureau's April 2000 estimates base). By the 2010 Census it was 59,466.

How dense is Cheyenne?

Cheyenne has about 1,823 people per square mile of land (36.5 square miles).

More about Cheyenne

See cost of living, jobs and commutes in Cheyenne, Cheyenne weather by month, or every Cheyenne ZIP code. For the biggest cities in the country, see the largest US cities.