ZIP Code 59638

  • Zip Code: 59638
  • Type: POBox
  • Official USPS city name: Jefferson City
  • Official USPS State Code: MT
  • Official State Name: Montana
  • ZCTA: TRUE
  • Population: 703.0
  • Density: 2.8
  • Primary Official County Code: 30043
  • Primary Official County Name: Jefferson
  • Official County Name: Jefferson
  • Official County Code: 30043
  • Imprecise: FALSE
  • Military: FALSE
  • Timezone: America/Denver (04:17 AM Saturday, July 26 2025-07-26 (GMT -0600))
  • Geo Point: 46.36037, -111.96815


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