The S1 1YY postcode was located in Sheffield, Sheffield postcode town, within Yorkshire and The Humber, England region.
It is now a terminated postcode, it was a Large User postcode introduced in 1980-01 and terminated on 2006-03.
| Name | Type |
|---|---|
| OA21CD | E00185221 |
| LSOA21CD | E01033262 |
| MSOA21CD | E02006843 |
| MSOA21 | Cathedral & Kelham |
| Postcode Area | S1 |
| Ward | City |
| LTLA22 | Sheffield |
| UTLA22 | Sheffield |
| Region | Yorkshire and The Humber |
| Country | England |
| Co-ordinates | [ -1.4715778145128109, 53.38456159226775 ] |