ZIP Code 81128

  • Zip Code: 81128
  • Type: POBox
  • Official USPS city name: Chromo
  • Official USPS State Code: CO
  • Official State Name: Colorado
  • ZCTA: TRUE
  • Population: 109.0
  • Density: 0.2
  • Primary Official County Code: 8007
  • Primary Official County Name: Archuleta
  • Official County Name: Archuleta
  • Official County Code: 8007
  • Imprecise: FALSE
  • Military: FALSE
  • Timezone: America/Denver (00:26 AM Sunday, July 06 2025-07-06 (GMT -0600))
  • Geo Point: 37.06812, -106.67242


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