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About this map

Residents per square mile of land (water excluded). Under 50 is rural, a few hundred is small-town, 2,500+ is urban, and 10,000+ is big-city dense.

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024).

U.S.
95/sq mi
Wyoming
6/sq mi
Rankings
Full list

Top and bottom zip codes in Wyoming

Zip codes with 1,000+ residents

Most densely populated zip codes

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  1. 182644Mills2,581/sq mi
  2. 282001Cheyenne693/sq mi
  3. 382609Casper287/sq mi
  4. 482007Cheyenne112/sq mi
  5. 582072Laramie90/sq mi
  6. 682935Green River89/sq mi
  7. 782601Casper56/sq mi
  8. 882801Sheridan50/sq mi
  9. 982937Lyman40/sq mi
  10. 1083001Jackson36/sq mi

Most sparsely populated zip codes

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  1. 182513Dubois1/sq mi
  2. 282433Meeteetse1/sq mi
  3. 382225Lusk2/sq mi
  4. 482649Shoshoni2/sq mi
  5. 582730Upton2/sq mi
  6. 683113Big Piney3/sq mi
  7. 782836Dayton3/sq mi
  8. 882701Newcastle3/sq mi
  9. 982633Douglas4/sq mi
  10. 1082201Wheatland4/sq mi

Population density by county in Wyoming

  1. 1Laramie County38/sq mi
  2. 2Natrona County15/sq mi
  3. 3Sheridan County13/sq mi
  4. 4Uinta County10/sq mi
  5. 5Campbell County10/sq mi
  6. 6Albany County9/sq mi
  7. 7Teton County6/sq mi
  8. 8Goshen County6/sq mi
  9. 9Lincoln County5/sq mi
  10. 10Park County4/sq mi
  11. 11Fremont County4/sq mi
  12. 12Platte County4/sq mi
  13. 13Sweetwater County4/sq mi
  14. 14Big Horn County4/sq mi
  15. 15Washakie County3/sq mi
  16. 16Converse County3/sq mi
  17. 17Weston County3/sq mi
  18. 18Crook County3/sq mi
  19. 19Hot Springs County2/sq mi
  20. 20Johnson County2/sq mi
  21. 21Carbon County2/sq mi
  22. 22Sublette County2/sq mi
  23. 23Niobrara County1/sq mi

Questions about this map

Which zip code has the highest population density in Wyoming?

Among zip codes with at least 1,000 residents, 82644 (Mills, WY) has the highest: 2,581/sq mi.

Which zip code has the lowest population density in Wyoming?

82513 (Dubois, WY) has the lowest: 1/sq mi.

What is the population density for the United States?

95/sq mi; in Wyoming it is 6/sq mi.

Where does this data come from?

U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024). Residents per square mile of land (water excluded). Under 50 is rural, a few hundred is small-town, 2,500+ is urban, and 10,000+ is big-city dense.

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