| Code | Name | Region |
|---|---|---|
| DESDN | Sindelfingen | BW |
| DESI2 | Sindelsdorf | BY |
| DESF2 | Sindorf/kerpen | NW |
| DESIN | Singen | BW |
| DESNH | Singen | TH |
| DESGH | Singhofen | RP |
| DEW9G | Singwitz | SN |
| DESNX | Sinn | HE |
| DE2ST | Sinntal | HE |
| DESIH | Sinsheim | BW |
| DESPT | Sinspelt | RP |
| DESZZ | Sinzheim | BW |
| DESZG | Sinzig | RP |
| DESI3 | Sinzing | BY |
| DE56E | Sirksfelde | SH |
| DEZSI | Sielenbach | BY |
| DE64R | Sierksdorf | SH |
| DE53H | Sierksrade | SH |
| DESHN | Siershahn | RP |
| DESEO | Sietow | MV |
| DESZC | Sietzsch | ST |
| DE59O | Sievershutten | SH |
| DE73D | Sieverstedt | SH |
| DEIGL | Siglingen | BW |
| DESMG | Sigmaringen | BW |
| DEXIG | Sigmaringendorf | BW |
| DESMZ | Sigmarszell | BY |
| DE72L | Silberstedt | SH |
| DEILZ | Silzen | SH |
| DEZGM | Simbach | BY |
| DESIB | Simbach Am Inn | BY |
| DES3F | Simmelsdorf | BY |
| DESRH | Simmerath | NW |
| DE83U | Simmern | RP |
| DESIM | Simmern/hunsruck | RP |
| DE74Q | Sibbesse | NI |
| DE74I | Sickte | NI |
| DESGI | Siebeldingen | RP |
| DESBB | Siebenbach | RP |
| DE56D | Siebenbaumen | SH |
| DESBI | Siebenborn | RP |
| DE53X | Siebeneichen | SH |
| DEXSB | Siebenlehn | SN |
| DE74K | Siedenburg | NI |
| DELX8 | Siefersheim | RP |
| DESIG | Siegburg | NW |
| DESLB | Siegelbach | TH |
| DESGL | Siegelsbach | BW |
| DESGE | Siegen | NW |
| DEIGB | Siegenburg | BY |