There are 18 zip codes in Richland County, South Carolina. The most populated is 29223, located in Columbia. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
2922351,354Columbia
2922949,097Columbia
2920341,205Columbia
2921040,923Columbia
2906338,754Irmo
2920936,979Columbia
2901629,154Blythewood
2920122,938Columbia
2920522,861Columbia
2920618,746Columbia
2920418,034Columbia
2906112,569Hopkins
292079,963Columbia
290444,208Eastover
290522,479Gadsden
292082,281Columbia
29225401Columbia
29177176White Rock

Zip Codes in Richland County, South Carolina by Population (2024)