KEP RIAU memiliki 141 kode pos unik
| # | Kode Pos | Jumlah Desa |
|---|---|---|
| 101 | 29671 |
5 |
| 102 | 29672 |
8 |
| 103 | 29673 |
4 |
| 104 | 29711 |
1 |
| 105 | 29712 |
1 |
| 106 | 29713 |
1 |
| 107 | 29714 |
1 |
| 108 | 29715 |
1 |
| 109 | 29716 |
1 |
| 110 | 29752 |
4 |
| 111 | 29753 |
6 |
| 112 | 29754 |
3 |
| 113 | 29761 |
7 |
| 114 | 29762 |
3 |
| 115 | 29763 |
2 |
| 116 | 29764 |
7 |
| 117 | 29781 |
5 |
| 118 | 29784 |
3 |
| 119 | 29785 |
3 |
| 120 | 29786 |
7 |