| Code | Name | Region |
|---|---|---|
| NIMAS | Masaya | |
| NIMTG | Matagalpa | |
| NIMAE | Mateare | MN |
| NIMAT | Matiguas | MT |
| NIGRA | Granada | GR |
| NIRNI | Corn Island | |
| NIDIR | Diriamba | CA |
| NIDIM | Diriomo | GR |
| NIDOL | Dolores | CA |
| NIELB | El Bluff | |
| NIEJC | El Jicaral | LE |
| NIELL | El Sauce | LE |
| NIETU | El Tuma | MT |
| NIZEO | El Viejo | CI |
| NIEST | Esteli | ES |
| NIJPA | Jalapa | |
| NIJNO | Jinotega | JI |
| NIJIN | Jinotepe | |
| NIJGP | Juigalpa | CO |
| NILIB | La Libertad | CO |
| NILPC | La Paz Centro | LE |
| NILTD | La Trinidad | ES |
| NILM8 | Las Maderas | MN |
| NILEO | Leon | |
| NIACO | Acoyapa | CO |
| NI | ||
| NIBEF | Bluefields | |
| NIBOA | Boaco | BO |
| NIBZA | Bonanza | |
| NICAP | Camoapa | BO |
| NICCG | Chichigalpa | CI |
| NICHI | Chinandega | |
| NISDC | Ciudad Sandino | MN |
| NICDG | Condega | ES |
| NICIO | Corinto |