| Area/District | Active Postcodes |
| NP0A | 17 |
| NP0B | 16 |
| NP0D | 15 |
| NP0E | 14 |
| NP0F | 20 |
| NP0G | 17 |
| NP0H | 17 |
| NP0J | 16 |
| NP0L | 20 |
| NP0N | 19 |
| NP0P | 13 |
| NP0Q | 16 |
| NP0R | 13 |
| NP0S | 11 |
| NP0T | 14 |
| NP0U | 10 |
| NP0V | 1 |
| NP0W | 17 |
| NP0X | 19 |
| NP0Y | 13 |
| NP1 | 1,649 |
| NP10 | 740 |
| NP11 | 1,032 |
| NP12 | 1,029 |
| NP13 | 613 |
| NP15 | 482 |
| NP16 | 964 |
| NP18 | 570 |
| NP19 | 1,381 |
| NP1A | 10 |
| NP1B | 1 |
| NP1D | 19 |
| NP1E | 19 |
| NP1F | 8 |
| NP1G | 12 |
| NP1H | 17 |
| NP1J | 20 |
| NP1L | 13 |
| NP1N | 2 |
| NP1P | 18 |
| NP1Q | 13 |
| NP1R | 13 |
| NP1S | 14 |
| NP1T | 16 |
| NP1U | 16 |
| NP1W | 18 |
| NP1X | 17 |
| NP1Y | 11 |
| NP2 | 1,649 |
| NP20 | 1,781 |
| NP22 | 656 |
| NP23 | 1,000 |
| NP24 | 160 |
| NP25 | 737 |
| NP26 | 777 |
| NP2A | 19 |
| NP2B | 12 |
| NP2D | 13 |
| NP2E | 20 |
| NP2F | 6 |
| NP2G | 10 |
| NP2H | 16 |
| NP2J | 18 |
| NP2L | 20 |
| NP2N | 15 |
| NP2P | 11 |
| NP2Q | 7 |
| NP2S | 1 |
| NP2T | 20 |
| NP2U | 17 |
| NP2W | 12 |
| NP2X | 15 |
| NP3 | 1,529 |
| NP3A | 18 |
| NP3B | 13 |
| NP3D | 10 |
| NP3E | 16 |
| NP3F | 10 |
| NP3G | 10 |
| NP3H | 19 |
| NP3J | 20 |
| NP3L | 12 |
| NP3N | 18 |
| NP3P | 10 |
| NP3Q | 10 |
| NP3R | 8 |
| NP3S | 11 |
| NP3X | 4 |
| NP3Y | 3 |
| NP4 | 2,745 |
| NP44 | 1,517 |
| NP4A | 19 |
| NP4B | 15 |
| NP4D | 15 |
| NP4E | 19 |
| NP4F | 15 |
| NP4G | 12 |
| NP4H | 16 |
| NP4J | 15 |
| NP4L | 14 |
| NP4N | 16 |
| NP4P | 10 |
| NP4R | 15 |
| NP4S | 15 |
| NP4T | 15 |
| NP4U | 18 |
| NP4X | 7 |
| NP4Y | 5 |
| NP5 | 1,009 |
| NP5A | 13 |
| NP5B | 13 |
| NP5D | 10 |
| NP5E | 13 |
| NP5F | 20 |
| NP5G | 6 |
| NP5H | 18 |
| NP5J | 17 |
| NP5L | 13 |
| NP5N | 11 |
| NP5P | 20 |
| NP5Q | 17 |
| NP5R | 4 |
| NP5U | 2 |
| NP5X | 18 |
| NP5Y | 14 |
| NP6 | 1,874 |
| NP6A | 20 |
| NP6B | 19 |
| NP6D | 20 |
| NP6E | 20 |
| NP6F | 20 |
| NP6G | 11 |
| NP6H | 9 |
| NP6J | 20 |
| NP6L | 20 |
| NP6N | 20 |
| NP6P | 13 |
| NP6Q | 18 |
| NP6R | 10 |
| NP6S | 20 |
| NP6T | 14 |
| NP6U | 8 |
| NP6W | 16 |
| NP6X | 20 |
| NP6Y | 8 |
| NP6Z | 2 |
| NP7 | 1,293 |
| NP7A | 20 |
| NP7B | 19 |
| NP7D | 18 |
| NP7E | 16 |
| NP7F | 13 |
| NP7G | 14 |
| NP7H | 20 |
| NP7J | 16 |
| NP7L | 13 |
| NP7N | 19 |
| NP7P | 20 |
| NP7Q | 14 |
| NP7R | 12 |
| NP7S | 14 |
| NP7T | 8 |
| NP7X | 16 |
| NP7Y | 2 |
| NP8 | 234 |
| NP8A | 16 |
| NP8B | 11 |
| NP8D | 17 |
| NP8E | 19 |
| NP8F | 15 |
| NP8G | 18 |
| NP8H | 14 |
| NP8J | 17 |
| NP8L | 17 |
| NP8N | 17 |
| NP8P | 3 |
| NP8W | 18 |
| NP8X | 15 |
| NP8Y | 7 |
| NP9 | 2,740 |
| NP9A | 20 |
| NP9B | 14 |
| NP9D | 13 |
| NP9E | 16 |
| NP9F | 16 |
| NP9G | 16 |
| NP9H | 15 |
| NP9J | 15 |
| NP9L | 17 |
| NP9N | 12 |
| NP9P | 17 |
| NP9Q | 18 |
| NP9R | 11 |
| NP9S | 19 |
| NP9X | 1 |
| NP9Z | 2 |