Park County area

Population and density of Park County

The Census Bureau estimates that 31,171 people lived in Park County on July 1, 2025. That ranks #1,451 of 3,222 county equivalents nationally and #8 of 23 in Wyoming. Since the April 1, 2020 estimates base of 29,629, the population has grown by 1,542 (+5.2%), compared with +2.1% for Wyoming as a whole.

With 6,939 square miles of land, that is 4.5 people per square mile (1.7 per km²), placing Park County #2,869 nationally for density and #10 in Wyoming. The median county equivalent has 47 people per square mile; the Wyoming median is 4.1. Put another way, there are about 142 acres of land per resident.

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Park County

4 incorporated places lie at least partly in Park County. Together they are home to 17,290 people (55.5%); the other 13,881 (44.5%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Cody city, with 10,377 residents in the county. Among places with at least 1,000 residents in 2020, Cody city grew fastest since then (+2.6%).

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Park County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Park County is a central county of the Cody, WY Micropolitan Statistical Area. Park County is the area’s only county equivalent, so the micro area has the same 6,939 square miles of land. By combined land it ranks #11 of 542 micropolitan areas, and #427 by population.

ZIP codes

8 ZIP Code Tabulation Areas have land in Park County; 6 of them have most of their land inside the county, and the others mainly cover neighboring areas.

8219082414824218242382433824358244082450

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Park County

Park County shares a land border with 8 county equivalents, including 3 in Montana. It has more land than 7 of them. The largest neighbor is Fremont County (9,183.6 mi²) and the smallest is Hot Springs County (2,004.4 mi²). Together with its neighbors, Park County forms a block of 34,955.3 mi² of land, of which it holds 19.9%.

How big is Park County compared with U.S. states?

Park County has more land than 4 of the 50 states. It is about 1.1 times the land area of Hawaii (6,422.6 mi²), while New Jersey, the next larger state, has 1.1 times as much land (7,355 mi²). Wyoming’s county land could hold about 14 areas the size of Park County.

Another way to picture it: the same land area would fill a square about 83.3 miles (134.1 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Park County?

Park County has more land than 3,177 of the other 3,221 county equivalents in the dataset.

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Park County at #49 nationally by total area, 4 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 0.4%, compared with a national county-equivalent median of 1.2% — 0.8 percentage points lower. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Park County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.