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Johnston County, North Carolina

Johnston County
Johnston County Courthouse
Flag of Johnston County
Official seal of Johnston County
Official logo of Johnston County
Map of North Carolina highlighting Johnston County
Location within the U.S. state of North Carolina
Map of the United States highlighting North Carolina
North Carolina's location within the U.S.
Coordinates: 35°31′N 78°22′W / 35.51°N 78.37°W / 35.51; -78.37
Country United States
State North Carolina
EstablishedJune 28, 1746 (1746-06-28)
Named forGabriel Johnston
SeatSmithfield
Largest communityClayton
Area
 • Total
795.65 sq mi (2,060.7 km2)
 • Land792.02 sq mi (2,051.3 km2)
 • Water3.63 sq mi (9.4 km2)  0.46%
Population
 (2020)
 • Total
215,999
 • Estimate 
(2023)
241,955
 • Density272.72/sq mi (105.30/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
ZIP Codes
27501, 27504, 27520, 27524, 27527, 27529, 27542, 27555, 27557, 27568, 27569, 27576, 27577, 27591, 27592, 27597, 27603, 28334, 28366
Area code919, 984
Congressional district13th
Websitejohnstonnc.com

Johnston County is a county located in the U.S. state of North Carolina. As of the 2020 census, the population was 215,999.[1] Its county seat is Smithfield.[2]

Johnston County is included in the Raleigh-Cary, NC Metropolitan Statistical Area, which is also included in the Raleigh-Durham-Cary, NC Combined Statistical Area, which had an estimated population of 2,368,947 in 2023.[3]

  1. ^ Cite error: The named reference 2020CensusQuickFacts was invoked but never defined (see the help page).
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. ^ "Metropolitan and Micropolitan Statistical Areas Population Totals: 2020-2023". United States Census Bureau, Population Division. March 14, 2024. Retrieved March 15, 2024.

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