This articleis missing information about total population of this Census Division from the 2010 Census. Please expand the article to include this information. Further details may exist on thetalk page.(October 2021) |

TheSouth Atlantic states form one of the nineCensus Bureau Divisions within theUnited States that are recognized by theUnited States Census Bureau. This region, U.S. Census Bureau Region 3, Division 5, corresponds to theSouth (states/areas that were geographically part of theThirteen Colonies) with the addition of Florida.
The name of the census division does not refer to theSouth Atlantic Ocean, but rather to its location along theAtlantic Coast of the United States. Farther north are the Census-definedMiddle Atlantic andNew England (or North Atlantic) states.
This division includes eight states and one district;Delaware,Florida,Georgia,Maryland,North Carolina,South Carolina,Virginia,West Virginia andWashington.[1] This division is also a recognized geographical division used by theUnited States Geological Survey.[2]: 2 All entities within the region apart from the District of Columbia and West Virginia border the North Atlantic Ocean.
Together with theEast South Central states (Alabama,Kentucky,Mississippi andTennessee) and theWest South Central states (Arkansas,Louisiana,Oklahoma andTexas), the South Atlantic states constitute theUnited States Census Bureau's broaderCensus Bureau Region ofthe South (the other three regions being theNortheast,Midwest andWest, all of which have two divisions).

As of 2010, the South Atlantic states had a combined population of 61,774,970. The South Atlantic states region covers 292,589 square miles (757,800 km2). With the exception of West Virginia, the region has seen rapid population growth and economic development in recent decades.
| State | 2020 census | Land area |
|---|---|---|
| Delaware | 989,948 | 1,982 |
| Florida | 21,538,187 | 65,755 |
| Georgia | 10,711,908 | 59,425 |
| Maryland | 6,177,224 | 12,407 |
| North Carolina | 10,439,388 | 53,819 |
| South Carolina | 5,118,435 | 32,020 |
| Virginia | 8,631,393 | 42,774 |
| West Virginia | 1,793,716 | 24,230 |
| Washington, D.C. | 689,545 | 177 |
| City | 2020 census | |
|---|---|---|
| 1 | Jacksonville, Florida | 949,611 |
| 2 | Charlotte, North Carolina | 874,579 |
| 3 | Washington, D.C. | 689,545 |
| 4 | Baltimore, Maryland | 585,708 |
| 5 | Atlanta, Georgia | 498,715 |
| 6 | Raleigh, North Carolina | 467,665 |
| 7 | Virginia Beach, Virginia | 459,470 |
| 8 | Miami, Florida | 442,241 |
| 9 | Tampa, Florida | 384,959 |
| 10 | Orlando, Florida | 307,573 |
| Metro area | 2020 census | |
|---|---|---|
| 1 | Washington-Arlington-Alexandria, DC-VA-MD-WV MSA | 6,385,162 |
| 2 | Atlanta-Sandy Springs-Alpharetta, GA MSA | 6,220,106 |
| 3 | Miami-Fort Lauderdale-West Palm Beach, FL MSA | 6,138,333 |
| 4 | Tampa-St. Petersburg-Clearwater, FL MSA | 3,175,275 |
| 5 | Baltimore-Columbia-Towson, MD MSA | 2,844,510 |
| 6 | Orlando-Kissimmee-Sanford, FL MSA | 2,673,376 |
| 7 | Charlotte-Concord-Gastonia, NC-SC MSA | 2,660,329 |
| 8 | Virginia Beach-Norfolk-Newport News, VA-NC MSA | 1,799,674 |
| 9 | Jacksonville, FL MSA | 1,605,848 |
| 10 | Raleigh-Cary, NC MSA | 1,413,982 |
| Parties | ||||||||
| Nonpartisan | Democratic-Republican | Democratic | Nullifier | Whig | Republican | Liberal Republican | Dixiecrat | American Independent |