County research and study

Wyoming county reference

23 counties and county equivalents in Wyoming. Search names or FIPS codes, compare Census geography and keep the original sources with your work.

• Albany County

  Wyoming · FIPS 56001

  38,558 residents · 2025 estimate

• Big Horn County

  Wyoming · FIPS 56003

  12,024 residents · 2025 estimate

• Campbell County

  Wyoming · FIPS 56005

  48,145 residents · 2025 estimate

• Carbon County

  Wyoming · FIPS 56007

  14,013 residents · 2025 estimate

• Converse County

  Wyoming · FIPS 56009

  13,824 residents · 2025 estimate

• Crook County

  Wyoming · FIPS 56011

  7,852 residents · 2025 estimate

• Fremont County

  Wyoming · FIPS 56013

  39,464 residents · 2025 estimate

• Goshen County

  Wyoming · FIPS 56015

  12,640 residents · 2025 estimate

• Hot Springs County

  Wyoming · FIPS 56017

  4,600 residents · 2025 estimate

• Johnson County

  Wyoming · FIPS 56019

  8,908 residents · 2025 estimate

• Laramie County

  Wyoming · FIPS 56021

  102,938 residents · 2025 estimate

• Lincoln County

  Wyoming · FIPS 56023

  21,180 residents · 2025 estimate

• Natrona County

  Wyoming · FIPS 56025

  80,526 residents · 2025 estimate

• Niobrara County

  Wyoming · FIPS 56027

  2,341 residents · 2025 estimate

• Park County

  Wyoming · FIPS 56029

  31,171 residents · 2025 estimate

• Platte County

  Wyoming · FIPS 56031

  8,634 residents · 2025 estimate

• Sheridan County

  Wyoming · FIPS 56033

  33,241 residents · 2025 estimate

• Sublette County

  Wyoming · FIPS 56035

  8,929 residents · 2025 estimate

• Sweetwater County

  Wyoming · FIPS 56037

  41,267 residents · 2025 estimate

• Teton County

  Wyoming · FIPS 56039

  23,333 residents · 2025 estimate

• Uinta County

  Wyoming · FIPS 56041

  20,728 residents · 2025 estimate

• Washakie County

  Wyoming · FIPS 56043

  7,597 residents · 2025 estimate

• Weston County

  Wyoming · FIPS 56045

  6,840 residents · 2025 estimate

Use the county data

Use a county profile as a source-reading exercise or the geographic context for your own research. Keep the county FIPS identifier with your notes so that similarly named places in different states are not mixed.

The figures describe the county; they are not an evaluation of schools or an estimate of educational outcomes.

Geography: 2025 U.S. Census Gazetteer. Population: Vintage 2025 estimates, July 1, 2025. County equivalents include parishes, boroughs, independent cities and planning regions. Puerto Rico population is not supplied by this population file.