According to Whitney Houston official site, JUST WHITNEY by WHITNEY HOUSTON has sold 2,000,000 copies worldwide. The album sold best in United States (1,000,000 copies), France (100,000 copies) and Japan (100,000 copies).
JUST WHITNEY certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 France |
100,000 | 1x Gold | 11 December, 2002 |
France Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 11 December, 2002
|
 Japan |
100,000 | 1x Gold | January 2003 |
Japan Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: January 2003
|
 Korea |
30,973 | RIAK / Gaon charts |
Korea Sales: 30,973
Certification / note: RIAK / Gaon charts
Certification Date / sales as of:
|
|
 Switzerland |
40,000 | 1x Platinum | 2002 |
Switzerland Sales: 40,000
Certification / note: 1x Platinum
Certification Date / sales as of: 2002
|
 United States |
1,000,000 | 1x Platinum | 10 January, 2003 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 10 January, 2003
|
| Worldwide sales | 2,000,000 | Whitney Houston official site |
Total
Sales: 2,000,000
Source: Whitney Houston official site
|
Year-end chart performance for JUST WHITNEY
| Chart 2002 | Rank | Sales |
| South Korean International Albums (Gaon) |
42 | 30,973 |
| Chart 2003 | Rank | Sales |
| US Albums (Billboard 200) |
101 |