Fonteinkruid is een straat te Oudkarspel in de gemeente Schagen en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1724 XR | 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46; |
| 1724 XP | 49, 51, 53, 55, 57, 59, 47, 45, 43, 41, 39, 37, 35, 33, 31, 29, 27, 25, 23, 21, 19, 17, 15, 13, 11, 9, 7, 5, 3, 1; |