| Area Code: | DE |
The DE postcode area, also known as the Derby postcode area,[1] is a group of 23 postcode districts in central England, within 11 post towns. These cover south and central Derbyshire (including Derby, Alfreton, Ashbourne, Bakewell, Belper, Heanor, Ilkeston, Matlock, Ripley and Swadlincote), parts of east Staffordshire (including Burton upon Trent) and north-west Leicestershire, and very small parts of Nottinghamshire.
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The approximate coverage of the postcode districts:
|-! DE1| DERBY| Derby city centre| Derby|-! DE3| DERBY| Derby (Mickleover)| Derby, South Derbyshire|-! DE4 | MATLOCK| Sector 2:Darley Dale, Beeley, Rowsley, Winster, Darley Bridge, Elton, Bonsall
Sector 3:Matlock, Matlock Bath, Cromford
Sector 4: Middleton-by-Wirksworth, Wirksworth, Bolehill
Sector 5: Crich, Holloway, Lea, Tansley|Derbyshire Dales, Amber Valley|-! DE5| RIPLEY| Ripley, Codnor, Denby, Waingroves, Butterley, Pentrich| Amber Valley|-! DE6| ASHBOURNE| Ashbourne, Hulland Ward, Weston Underwood| Derbyshire Dales, Amber Valley, South Derbyshire, Derby, East Staffordshire|-! DE7| ILKESTON| Horsley Woodhouse, Ilkeston, Morley, West Hallam| Erewash, Amber Valley, Broxtowe|-! DE11| SWADLINCOTE| Swadlincote, Church Gresley, Woodville, Newhall, Hartshorne, Castle Gresley, Blackfordby, Albert Village| South Derbyshire, North West Leicestershire|-! DE12| SWADLINCOTE| Appleby Magna, Donisthorpe, Linton, Measham, Overseal, Rosliston, Walton-on-Trent| North West Leicestershire, South Derbyshire|-! DE13| BURTON-ON-TRENT| Alrewas, Barton-under-Needwood, Rolleston on Dove, Tutbury| East Staffordshire, Lichfield|-! DE14| BURTON-ON-TRENT| Branston, Burton upon Trent| East Staffordshire, South Derbyshire|-! DE15| BURTON-ON-TRENT| Bretby, Stapenhill, Newton Solney, Winshill| East Staffordshire, South Derbyshire|-! DE21| DERBY| Derby (Chaddesden, Oakwood, Spondon); Breadsall, Horsley, Little Eaton| Derby, Erewash, Amber Valley|-! DE22| DERBY| Derby (Allestree, Darley Abbey, Mackworth (estate)); Kedleston, Mackworth (village), Quarndon| Derby, Amber Valley|-! DE23| DERBY| Derby (Heatherton Village, Littleover, Normanton, Pear Tree, Sunny Hill) Highfields suburb| Derby, South Derbyshire|-! DE24| DERBY| Derby (Allenton, Alvaston, Boulton, Osmaston, Shelton Lock, Sinfin, Wilmorton); Stenson Fields| Derby, South Derbyshire|-! DE45| BAKEWELL| Ashford-in-the-Water, Bakewell, Baslow, Chatsworth, Edensor, Hassop, Monyash, Youlgreave| Derbyshire Dales|-! DE55| ALFRETON| Sector 1: Swanwick
Sectors 2 and 3: Alfreton, South Normanton
Sector 4: Riddings, Greenhill Lane, Leabrooks, Somercotes
Sector 5: Tibshelf, Newton, Blackwell, Hilcote
Sector 6: Wessington, Higham, Stonebroom, Morton, Shirland
Sector 7: Alfreton, South Wingfield| Amber Valley, Bolsover|-! DE56| BELPER| Ambergate, Belper, Duffield, Heage, Holbrook, Kilburn, Milford| Amber Valley|-! DE65| DERBY| Burnaston, Egginton, Etwall, Findern, Hatton, Hilton, Milton, Repton, Willington| South Derbyshire|-! DE72| DERBY| Ambaston, Aston-on-Trent, Borrowash, Breaston, Church Wilne, Draycott, Elvaston, Ockbrook, Risley, Shardlow, Weston-on-Trent| Erewash, South Derbyshire, North West Leicestershire|-! DE73| DERBY| Derby (Chellaston); Barrow upon Trent, Ingleby, Melbourne, Stanton by Bridge, Swarkestone, Ticknall| Derby, South Derbyshire|-! DE74| DERBY| Castle Donington, Kegworth, Diseworth, Hemington, Lockington, East Midlands Airport| North West Leicestershire, Rushcliffe|-! DE75| HEANOR| Heanor, Loscoe, Shipley| Amber Valley|-! style="background:#FFFaFFF;"|DE99| style="background:#FFFFFF;"|DERBY| style="background:#FFFFFF;"|| style="background:#FFFFFF;"|non-geographic|}
Until approximately 1992, most of the districts were different: