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  5. Area Code 660

Where Is Area Code 660?

Area code 660 is found in the US state of Missouri. Primarily servicing the city of Sedalia (population: 34362), area code 660 covers 39 counties of Missouri.

Located in the Central time zone, area code 660 is on the same time as Chicago, IL.

Area code 660 was brought into effect on October 12, 1997. 660 was split from the parent 816 area code.

Map of  with area code 660 highlighted

Counties in Area Code 660

  • Adair,
  • Atchison,
  • Bates,
  • Benton,
  • Caldwell,
  • Carroll,
  • Chariton,
  • Clark,
  • Cooper,
  • Daviess,
  • Gentry,
  • Grundy,
  • Harrison,
  • Henry,
  • Holt,
  • Howard,
  • Johnson,
  • Knox,
  • Lafayette,
  • Lewis,
  • Linn,
  • Livingston,
  • Macon,
  • Mercer,
  • Moniteau,
  • Monroe,
  • Nodaway,
  • Pettis,
  • Putnam,
  • Randolph,
  • Ray,
  • Saint Clair,
  • Saline,
  • Schuyler,
  • Scotland,
  • Shelby,
  • Sullivan,
  • Worth.

Most Populous Cities in Area Code 660

City County City Population Time Zone
Sedalia Pettis 34,362 CST
Warrensburg Johnson 28,553 CST
Kirksville Adair 21,510 CST
Moberly Randolph 17,622 CST
Maryville Nodaway 16,056 CST
Marshall Saline 15,916 CST
Clinton Henry 13,187 CST
Chillicothe Livingston 12,308 CST
Boonville Cooper 11,649 CST
Warsaw Benton 10,466 CST
Trenton Grundy 8,203 CST
Macon Macon 7,929 CST
Butler Bates 6,967 CST
Knob Noster Johnson 6,183 CST
Higginsville Lafayette 6,094 CST
Brookfield Linn 6,010 CST
Lexington Lafayette 5,736 CST
Carrollton Carroll 5,098 CST
Windsor Henry 4,744 CST
Fayette Howard 4,630 CST
Bethany Harrison 4,467 CST
Tipton Moniteau 3,929 CST
Kahoka Clark 3,817 CST
Unionville Putnam 3,768 CST
Milan Sullivan 3,684 CST

Note: The above list is based off of the top 25 most populous cities in the area code as per 2012 United States Census Bureau estimates.

View all United States Area Codes.

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This page was last updated on July 3, 2015.