SY1 — 11 codes dans 201 localités (Royaume-Uni).
| Code postal | Localité / Quartier | Zone administrative | Coordonnées |
|---|---|---|---|
| Battlefield | Shropshire · England | 52.7234, -2.7415 | |
| Shrewsbury | Shropshire · England | 52.7101, -2.7521 | |
| Penygarnedd | Shropshire · England | 52.8394, -3.1236 | |
| Morton | Shropshire · England | 52.8394, -3.1236 | |
| Nantmawr | Shropshire · England | 52.8394, -3.1236 | |
| Pant | Shropshire · England | 52.7833, -3.0667 | |
| Pen-y-bont | Powys · Wales | 52.8167, -3.3667 | |
| Pen-y-bont-fawr | Powys · Wales | 52.8167, -3.3667 | |
| Pencraig | Shropshire · England | 52.8394, -3.1236 | |
| Penisarcwn | Shropshire · England | 52.8394, -3.1236 | |
| Pennant Melangell | Powys · Wales | 52.8167, -3.45 | |
| Pentre | Shropshire · England | 52.8394, -3.1236 | |
| Pentrefelin | Shropshire · England | 52.8394, -3.1236 | |
| Preesgweene | Shropshire · England | 52.8394, -3.1236 | |
| Porth-y-waen | Shropshire · England | 52.8394, -3.1236 | |
| Moelfre | Shropshire · England | 52.8394, -3.1236 | |
| Rhewl | Shropshire · England | 52.8394, -3.1236 | |
| Rhiwargor | Shropshire · England | 52.8394, -3.1236 | |
| Rhiwlas | Shropshire · England | 52.8394, -3.1236 | |
| Rhydycroesau | Shropshire · England | 52.8676, -3.1203 | |
| Selattyn | Shropshire · England | 52.9, -3.0833 | |
| Tan-y-pistyll | Shropshire · England | 52.8394, -3.1236 | |
| Treflach | Shropshire · England | 52.8394, -3.1236 | |
| Trefonen | Shropshire · England | 52.8333, -3.1 | |
| Weston Rhyn | Shropshire · England | 52.9155, -3.0673 | |
| Woolston | Shropshire · England | 52.8394, -3.1236 | |
| Morda | Shropshire · England | 52.8394, -3.1236 | |
| Tyn-y-ffridd | Shropshire · England | 52.8394, -3.1236 | |
| Maesbury Marsh | Shropshire · England | 52.8167, -3.0167 | |
| Edgerley | Shropshire · England | 52.8394, -3.1236 | |
| Llynclys | Shropshire · England | 52.8097, -3.0661 | |
| Alltforgan | Shropshire · England | 52.8394, -3.1236 | |
| Ball | Shropshire · England | 52.8167, -3.0333 | |
| Abertridwr | Shropshire · England | 52.8394, -3.1236 | |
| Brogyntyn | Shropshire · England | 52.8394, -3.1236 | |
| Bwlch-y-ddar | Shropshire · England | 52.8394, -3.1236 | |
| Cedig | Shropshire · England | 52.8394, -3.1236 | |
| Cefn-coch | Shropshire · England | 52.8394, -3.1236 | |
| Craignant | Shropshire · England | 52.8394, -3.1236 | |
| Crickheath | Shropshire · England | 52.8394, -3.1236 | |
| Dovaston | Shropshire · England | 52.8394, -3.1236 | |
| Croesau Bach | Shropshire · England | 52.8394, -3.1236 | |
| Gobowen | Shropshire · England | 52.8961, -3.0369 | |
| Llanrhaeadr-ym-Mochnant | Powys · Wales | 52.8251, -3.3022 | |
| Lledrod | Shropshire · England | 52.8394, -3.1236 | |
| Llawnt | Shropshire · England | 52.8394, -3.1236 | |
| Llanyblodwel | Shropshire · England | 52.7991, -3.1252 | |
| Hengoed | Shropshire · England | 52.8394, -3.1236 | |
| Llansilin | Powys · Wales | 52.8457, -3.1758 | |
| Llanwddyn | Powys · Wales | 52.7597, -3.4581 | |
| Llangynog | Powys · Wales | 52.8333, -3.4 | |
| Llangedwyn | Powys · Wales | 52.8103, -3.2074 | |
| Knockin | Shropshire · England | 52.7965, -2.9967 | |
| Kinnerley | Shropshire · England | 52.7839, -2.9855 | |
| Hirnant | Powys · Wales | 52.7955, -3.4095 | |
| Queen's Head | Shropshire · England | 52.8054, -2.9458 | |
| Whittington | Shropshire · England | 52.8667, -3.0 | |
| West Felton | Shropshire · England | 52.8249, -2.9735 | |
| Welsh Frankton | Shropshire · England | 52.8054, -2.9458 | |
| Weirbrook | Shropshire · England | 52.8054, -2.9458 | |
| Street Dinas | Shropshire · England | 52.8054, -2.9458 | |
| St Martin's | Shropshire · England | 52.8054, -2.9458 | |
| Rednal | Shropshire · England | 52.8486, -2.9475 | |
| Rhyn | Shropshire · England | 52.8054, -2.9458 | |
| Oswestry | Shropshire · England | 52.8619, -3.055 | |
| Middleton | Shropshire · England | 52.8695, -3.0318 | |
| Ifton Heath | Shropshire · England | 52.9254, -3.0062 | |
| Hindford | Shropshire · England | 52.8904, -2.9913 | |
| Haughton | Shropshire · England | 52.8388, -2.9359 | |
| Grimpo | Shropshire · England | 52.8054, -2.9458 | |
| Eardiston | Shropshire · England | 52.8167, -2.9333 | |
| Babbinswood | Shropshire · England | 52.8054, -2.9458 | |
| New Marton | Shropshire · England | 52.8054, -2.9458 | |
| Kenwick | Shropshire · England | 52.8888, -2.8656 | |
| Welshampton | Shropshire · England | 52.9099, -2.8385 | |
| Tetchill | Shropshire · England | 52.8888, -2.8656 | |
| Sodylt Bank | Shropshire · England | 52.8888, -2.8656 | |
| Perthy | Shropshire · England | 52.8888, -2.8656 | |
| Lower Hordley | Shropshire · England | 52.8888, -2.8656 | |
| Lee | Shropshire · England | 52.8888, -2.8656 | |
| Lyneal | Shropshire · England | 52.8888, -2.8656 | |
| Hordley | Shropshire · England | 52.8511, -2.8975 | |
| Elson | Shropshire · England | 52.8888, -2.8656 | |
| Ellesmere | Shropshire · England | 52.9167, -2.8833 | |
| Dudleston Heath | Shropshire · England | 52.8888, -2.8656 | |
| Colemere | Shropshire · England | 52.8893, -2.8429 | |
| Cockshutt | Shropshire · England | 52.8568, -2.8409 | |
| Bagley | Shropshire · England | 52.8888, -2.8656 | |
| English Frankton | Shropshire · England | 52.8888, -2.8656 | |
| Prees Green | Shropshire · England | 52.9523, -2.6903 | |
| Marbury | Cheshire · England | 53.0, -2.65 | |
| Millenheath | Shropshire · England | 52.9441, -2.6649 | |
| Norbury | Cheshire · England | 53.0243, -2.6602 | |
| Platt Lane | Shropshire · England | 52.9441, -2.6649 | |
| Prees | Shropshire · England | 52.8969, -2.664 | |
| Whitchurch | Shropshire · England | 52.9667, -2.6833 | |
| Prees Higher Heath | Shropshire · England | 52.9441, -2.6649 | |
| The Chequer | Shropshire · England | 52.9441, -2.6649 | |
| Tilstock | Shropshire · England | 52.9356, -2.6838 | |
| Welsh End | Shropshire · England | 52.9441, -2.6649 | |
| Whixall | Shropshire · England | 52.9054, -2.721 | |
| Wilkesley | Shropshire · England | 52.9441, -2.6649 | |
| Wirswall | Cheshire · England | 52.9956, -2.6809 | |
| Marley Green | Shropshire · England | 52.9441, -2.6649 | |
| Hollinwood | Shropshire · England | 52.9523, -2.6903 | |
| Ightfield | Shropshire · England | 52.9413, -2.6058 | |
| Broughall | Shropshire · England | 52.9441, -2.6649 | |
| Horseman's Green | Shropshire · England | 52.9441, -2.6649 | |
| Alkington | Shropshire · England | 52.9441, -2.6649 | |
| Arowry | Shropshire · England | 52.9441, -2.6649 | |
| Bettisfield | Wrexham · Wales | 52.9142, -2.8055 | |
| Bronington | Shropshire · England | 52.9441, -2.6649 | |
| Ash Magna | Shropshire · England | 52.9441, -2.6649 | |
| Burleydam | Shropshire · England | 52.9441, -2.6649 | |
| Darliston | Shropshire · England | 52.9441, -2.6649 | |
| Edgeley | Shropshire · England | 52.9441, -2.6649 | |
| Eglwys Cross | Shropshire · England | 52.9441, -2.6649 | |
| Fauls | Shropshire · England | 52.8904, -2.6129 | |
| Hanmer | Wrexham · Wales | 52.9511, -2.8129 | |
| Calverhall | Shropshire · England | 52.9441, -2.6649 | |
| Shocklach | Cheshire · England | 53.0369, -2.8385 | |
| Malpas | Cheshire · England | 53.0167, -2.7667 | |
| No Man's Heath | Cheshire · England | 53.0298, -2.7267 | |
| Oldcastle Heath | Cheshire · England | 53.031, -2.767 | |
| Tilston | Cheshire · England | 53.057, -2.8088 | |
| Stretton | Cheshire · England | 53.0695, -2.8272 | |
| Tallarn Green | Cheshire · England | 53.031, -2.767 | |
| Threapwood | Cheshire · England | 53.0, -2.8333 | |
| Higher Wych | Cheshire · England | 53.031, -2.767 | |
| Horton Green | Cheshire · England | 53.031, -2.767 | |
| Croxton Green | Cheshire · England | 53.031, -2.767 | |
| Hampton Heath | Cheshire · England | 53.031, -2.767 | |
| Bulkeley | Cheshire · England | 53.0861, -2.7018 | |
| Barton | Cheshire · England | 53.0824, -2.8263 | |
| Bickerton | Cheshire · England | 53.0786, -2.7264 | |
| Bickley Moss | Cheshire · England | 53.0362, -2.6822 | |
| Gallantry Bank | Cheshire · England | 53.031, -2.767 | |
| Bickley Town | Cheshire · England | 53.031, -2.767 | |
| Chorlton Lane | Cheshire · England | 53.031, -2.767 | |
| Cuddington Heath | Cheshire · England | 53.031, -2.767 | |
| Duckington | Cheshire · England | 53.0642, -2.7607 | |
| Egerton Green | Cheshire · England | 53.031, -2.767 | |
| Pentre | Powys · England | 52.5539, -3.1327 | |
| Wotherton | Shropshire · England | 52.5539, -3.1327 | |
| Woodmoor | Shropshire · England | 52.5539, -3.1327 | |
| Rorrington | Shropshire · England | 52.5539, -3.1327 | |
| Priestweston | Shropshire · England | 52.5539, -3.1327 | |
| Pentreheyling | Shropshire · England | 52.5539, -3.1327 | |
| Snead | Powys · Wales | 52.5231, -3.0082 | |
| Montgomery | Powys · Wales | 52.5613, -3.1461 | |
| Llanmerewig | Powys · England | 52.5539, -3.1327 | |
| Llandyssil | Powys · Wales | 52.5496, -3.1862 | |
| Hyssington | Powys · Wales | 52.5408, -3.015 | |
| Church Stoke | Powys · Wales | 52.5333, -3.0833 | |
| Chirbury | Shropshire · England | 52.5783, -3.0903 | |
| Abermule | Powys · Wales | 52.5434, -3.2372 | |
| Middleton | Shropshire · England | 52.5539, -3.1327 | |
| Llanwyddelan | Powys · Wales | 52.4868, -3.2969 | |
| Tregynon | Powys · Wales | 52.5791, -3.3327 | |
| Sarn | Powys · Wales | 52.5, -3.1833 | |
| Rhydlydan | Powys · Wales | 52.4868, -3.2969 | |
| Pentre | Powys · Wales | 52.5207, -3.3125 | |
| Newtown | Powys · Wales | 52.5167, -3.3 | |
| New Mills | Powys · Wales | 52.5207, -3.3125 | |
| Mochdre | Powys · Wales | 52.4833, -3.3667 | |
| Glanmule | Powys · Wales | 52.4868, -3.2969 | |
| Llanllwchaiarn | Powys · Wales | 52.5207, -3.3125 | |
| Kerry | Powys · Wales | 52.5016, -3.2586 | |
| Dolfor | Powys · Wales | 52.4868, -3.2969 | |
| Cefn-gwyn | Powys · Wales | 52.4868, -3.2969 | |
| Bwlch-y-ffridd | Powys · Wales | 52.4868, -3.2969 | |
| Bettws Cedewain | Powys · Wales | 52.562, -3.2967 | |
| Adfa | Powys · Wales | 52.4868, -3.2969 | |
| Aberhafesp | Powys · Wales | 52.5215, -3.3731 | |
| Oakley Park | Powys · Wales | 52.5197, -3.4729 | |
| Trefeglwys | Powys · Wales | 52.5035, -3.5191 | |
| Rhyd | Powys · Wales | 52.5197, -3.4729 | |
| Plas Llysyn | Powys · Wales | 52.5197, -3.4729 | |
| Clatter | Powys · Wales | 52.5197, -3.4729 | |
| Llawryglyn | Powys · Wales | 52.5197, -3.4729 | |
| Llandinam | Powys · Wales | 52.485, -3.4369 | |
| Carno | Powys · Wales | 52.5599, -3.5354 | |
| Caersws | Powys · Wales | 52.5163, -3.4295 | |
| Llanwnog | Powys · Wales | 52.5336, -3.4434 | |
| Llanidloes | Powys · Wales | 52.4498, -3.54 | |
| Tyn-y-Cwm | Powys · Wales | 52.428, -3.573 | |
| Pant Mawr | Powys · Wales | 52.428, -3.573 | |
| Y Fan | Powys · Wales | 52.428, -3.573 | |
| Llangurig | Powys · Wales | 52.4062, -3.6059 | |
| Geufron | Powys · Wales | 52.428, -3.573 | |
| Dolfach | Powys · Wales | 52.428, -3.573 | |
| Cwmbelan | Powys · Wales | 52.428, -3.573 | |
| Bont Dolgadfan | Powys · Wales | 52.5792, -3.6344 | |
| Dylife | Powys · Wales | 52.5323, -3.6793 | |
| Llan | Powys · Wales | 52.5792, -3.6344 | |
| Llanbrynmair | Powys · Wales | 52.6115, -3.6276 | |
| Pandy | Powys · Wales | 52.5792, -3.6344 | |
| Pennant | Powys · Wales | 52.5792, -3.6344 | |
| Pentre-celyn | Powys · Wales | 52.5792, -3.6344 | |
| Plas-rhiw-Saeson | Powys · Wales | 52.5792, -3.6344 | |
| Pont Crugnant | Powys · Wales | 52.5792, -3.6344 | |
| Staylittle | Powys · Wales | 52.5167, -3.65 | |
| Tafolwern | Powys · Wales | 52.5792, -3.6344 | |
| Talerddig | Powys · Wales | 52.5882, -3.579 |