| Year |
City of North Augusta |
Aiken County |
| 1950 |
3,659 |
53,137 |
| 1960 |
10,348 |
81,038 |
| 1970 |
12,883 |
91,023 |
| 1980 |
13,593 |
105,625 |
| 1990 |
15,684 |
120,940 |
| 2000 |
17,574 |
142,552 |
| 2001 |
17,802 |
143,673 |
| 2002 |
18,150 |
145,197 |
| 2003 |
18,500 |
146,586 |
| 2004 |
19,090 |
148,592 |
| 2005 |
19,463 |
150,053 |
| 2006 |
19,723 |
150,220 |
| 2007 |
20,131 |
152,307 |
|