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Clay County Area Codes

About Clay County Area Codes

The county of Clay County, located in Missouri, is served by 1 telephone area code(s) in this dataset. These calling codes cover cities, suburbs, and unincorporated communities across the county.

Major phone area codes used in Clay County include 816. The county mainly follows the America/Chicago time zone.

Cities and towns served by these area codes in Clay County include Gladstone, Kansas City, Liberty.

List of Area Codes in Clay County, Missouri

The table below lists all telephone area codes used in Clay County, Missouri, along with their associated cities and time zones from this dataset.


S.N. Area Code Cities Time Zone(s)
1 816 Gladstone, Kansas City, Liberty America/Chicago


Related Area Code Pages

Explore related area code resources on Burning Compass:

  • All area codes in Missouri
  • Individual area code details are available from the table above.

County Area Codes in Missouri

  1. Boone County Area Codes
  2. Buchanan County Area Codes
  3. Cape Girardeau County Area Codes
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  12. St. Louis County Area Codes

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