| Code | Name | Region |
|---|---|---|
| DESIE | Siegertsbrunn | BY |
| DESSG | Siegmundsburg | TH |
| DESOF | Siegsdorf | BY |
| DESDQ | Siehdichum | MV |
| DESIQ | Siek | SH |
| DESFT | Senftenberg | BB |
| DESGB | Sengenthal | BY |
| DEEHM | Senheim | RP |
| DESNG | Sennelager | NW |
| DE26S | Sennestadt | NW |
| DEZFX | Sennfeld | BW |
| DESPB | Serba | TH |
| DESZT | Sereetz | SH |
| DESRA | Serrig | SL |
| DESXM | Sersheim | BW |
| DESHB | Sessenbach | RP |
| DESS2 | Sessenhausen | RP |
| DESQJ | Sesslach | BY |
| DE59F | Seth | SH |
| DESFO | Seubersdorf In Der Oberpfalz | BY |
| DESKR | Seukendorf | BY |
| DESVE | Sevelten | NI |
| DESWO | Sewekow | BB |
| DESEU | Sexau | BW |
| DESEY | Seybothenreuth | BY |
| DEDTA | Seitenroda | TH |
| DESO3 | Seitingen-oberflacht | BW |
| DESEB | Selb | BY |
| DESIO | Selbitz | BY |
| DE67K | Selent | SH |
| DESKT | Selfkant | NW |
| DESIS | Seligenstadt | BY |
| DESLT | Seligenstadt | HE |
| DE67I | Sellin | SH |
| DESEM | Selm | NW |
| DEEMD | Selmsdorf | |
| DE75Z | Selsingen | NI |
| DEELE | Selters, Taunus | HE |
| DESEL | Selters/westerwald | RP |
| DESXN | Selzen | RP |
| DESEX | Sembach | RP |
| DESMO | Semlow | MV |
| DESND | Senden | BY |
| DEDEE | Senden | NW |
| DESEN | Sendenhorst | NW |
| DESXE | Seelbach | BW |
| DESGT | Seelingstadt | TH |
| DESLW | Seelow | BB |
| DESZE | Seelze | NI |
| DESS3 | Seeon-seebruck | BY |