Joan Blasiusstraat is een straat te 's-Gravenhage in de gemeente 's-Gravenhage en is gelegen in de Nederlandse provincie Zuid-Holland.
| Postcode | Huisnummers |
|---|---|
| 2533 KP | 62, 64, 66, 68, 70, 72, 76, 78, 80, 82, 84, 86, 98 1, 98 2, 98 3, 98 4, 98, 100, 58, 56, 54, 52, 50, 48; |
| 2533 KK | 11, 13, 15, 19, 21, 23, 25, 27, 29, 33, 35, 37, 39, 41, 43, 47, 49, 51, 53, 55, 57, 5, 7, 9; |
| 2533 KN | 6, 8, 10, 12, 14, 16, 20, 22, 24, 26, 28, 30, 34, 36, 38, 40, 42, 44; |
| 2533 KL | 99, 97, 95, 93, 91, 89, 85, 83, 81, 79, 77, 75, 71, 69, 67, 65, 63, 61; |
| 2533 KM | 103, 105, 107, 109; |