ZIP Code 74531

  • Zip Code: 74531
  • Type: Standard
  • Official USPS city name: Calvin
  • Official USPS State Code: OK
  • Official State Name: Oklahoma
  • ZCTA: TRUE
  • Population: 935.0
  • Density: 2.8
  • Primary Official County Code: 40063
  • Primary Official County Name: Hughes
  • Official County Name: Hughes
  • Official County Code: 40063
  • Imprecise: FALSE
  • Military: FALSE
  • Timezone: America/Chicago (21:49 PM Thursday, July 10 2025-07-10 (GMT -0500))
  • Geo Point: 34.88726, -96.2522


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