| Code | Name | Region |
|---|---|---|
| DEIPT | Iptingen | BW |
| DEIHT | Irchenrieth | BY |
| DEIRL | Irlbach | BY |
| DEIRE | Irrel | RP |
| DEICB | Irschenberg | BY |
| DEZHK | Irxleben | ST |
| DEIBL | Isenbuttel | NI |
| DEISE | Iserlohn | NW |
| DEISN | Isernhagen | NI |
| DEIMG | Ismaning | BY |
| DEISY | Isny Im Allgau | BW |
| DEISP | Ispringen | BW |
| DELSS | Isselburg | NW |
| DEIZN | Ilshofen | BW |
| DE78V | Ilvesheim | BW |
| DEIMK | Immekath | ST |
| DEIMB | Immelborn | TH |
| DE77Y | Immendingen | BW |
| DEIHN | Immenhausen | HE |
| DEIMH | Immenreuth | BY |
| DEIMD | Immenstaad Am Bodensee | BW |
| DEIMM | Immenstadt Im Allgau | BY |
| DEBZI | Inchenhofen | BY |
| DEIDE | Inden | NW |
| DEIND | Inden-lamersdorf | BE |
| DEINH | Ingelbach | RP |
| DEIGF | Ingelfingen | BW |
| DEINM | Ingelheim | RP |
| DEIGM | Ingersheim | BW |
| DEING | Ingolstadt | BY |
| DEBGJ | Inneringen | BW |
| DEZIE | Inning Am Ammersee | BY |
| DEINI | Inning Am Holz | BY |
| DEIGH | Igersheim | BW |
| DEIGG | Iggingen | BW |
| DEZHW | Igling | BY |
| DEIHW | Ihlienworth | NI |
| DEIHL | Ihlow | BB |
| DEIHO | Ihlow | NI |
| DEIHR | Ihringen | BW |
| DEZVE | Ihrlerstein | BY |
| DEILB | Ilbesheim | RP |
| DEIDN | Illerrieden | BW |
| DEILN | Illertissen | BY |
| DEILM | Illesheim | BY |
| DEILG | Illingen | BW |
| DEILL | Illingen | SL |
| DEILS | Illschwang | BY |
| DEINU | Ilmenau | TH |
| DEKFU | Ilmendorf | BY |