As of JANUARY 2010
NATIONAL
| REGION | ESTABLISHED PRECINCTS |
REGISTERED VOTERS | NO. OF CLUSTERED PRECINCTS |
| TOTAL | 333,270 | 50,723,733 | 76,347 |
| 39,635 | 6,137,728 | 7,555 | |
| 5,939 | 898,696 | 1,785 | |
| 18,958 | 2,800,508 | 4,560 | |
| 12,166 | 1,823,666 | 3,097 | |
| 38,109 | 5,648,686 | 7,640 | |
| 44,027 | 6,736,126 | 9,318 | |
| 9,669 | 1,465,555 | 2,346 | |
| 18,673 | 2,857,925 | 4,767 | |
| 26,002 | 3,936,639 | 6,406 | |
| 24,728 | 3,921,867 | 5,561 | |
| 16,873 | 2,431,584 | 5,110 | |
| 11,876 | 1,856,826 | 2,854 | |
| 15,274 | 2,404,247 | 3,624 | |
| 17,073 | 2,555,783 | 3,431 | |
| 13,616 | 1,987,427 | 2,769 | |
| 11,686 | 1,882,338 | 3,379 | |
| 8,966 | 1,378,132 | 2,145 |