Mid Sussex
| Mid Sussex District | |
|---|---|
 Location in West Sussex |
|
| status | District |
| region | South East England |
| Administration County | West Sussex |
| Administrative headquarters | Haywards Heath |
| surface | 334.02 km² (146.) |
| Residents | 130,300 (148.) |
| ONS code | 45UG |
| Website | www.midsussex.gov.uk |
Mid Sussex is a district in the county of West Sussex in England . The administrative seat is Haywards Heath ; other significant places are Ardingly , Ashurst Wood , Balcombe , Bolney , Burgess Hill , Cuckfield , East Grinstead , Horsted Keynes , Lindfield and Turners Hill .
The district was formed on April 1, 1974 and was formed from the merger of the urban districts of Cuckfield, Burgess Hill and East Grinstead and a large part of the rural district of Cuckfield. These areas were previously part of East Sussex .