Horsham
23 postcode sectors mapped mainly to Horsham. Choose a district or browse the guides below. These are postcode sectors, not named neighbourhood boundaries.
Postcode districts
Area guides
23 sectors
- BN44 3Near Steyning
- BN5 0Near Henfield
- BN5 9Near Woodmancote
- RH11 0Near Rusper
- RH12 0Near Colgate
- RH12 1Near Southwater
- RH12 2Near Horsham
- RH12 3Near Slinfold
- RH12 4Near Rusper
- RH12 5Near Horsham
- RH12 9Near Southwater
- RH13 0Near Itchingfield
- RH13 5Near Horsham
- RH13 6Near Nuthurst
- RH13 8Near West Grinstead
- RH13 9Near Southwater
- RH14 4Near Billingshurst
- RH14 9Near Billingshurst
- RH20 2Near Pulborough
- RH20 3Near Washington
- RH20 4Near Storrington
- RH20 6Near Pulborough
- RH20 9Near Storrington
Authority grouping uses mapped sector boundaries from the Office for National Statistics, December 2025. It measures boundary area, not the number of addresses or residents. Guide names describe a place near the approximate sector centre.