FLOOD by THEY MIGHT BE GIANTS has sold 1,100,000 copies in United Kingdom and United States.
FLOOD certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 United Kingdom |
100,000 | 1x Gold | 12 November, 2004 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 12 November, 2004
|
 United States |
1,000,000 | 1x Platinum | 10 July, 2009 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 10 July, 2009
|
| Total sales | 1,100,000 | (in 2 countries) |
Total
Sales: 1,100,000
(in 2 countries)
|