Carnarvon and Caernarvon are forms of the name Caernarfon which are no longer used for the town in north Wales, but remain in use in other contexts. The first two forms are in English orthography and the third is the Welsh spelling, adopted in English since the 1970s. Most places and things named after Caernarfon use one of the former spellings.
| post code | city | state | latitude | longitude |
|---|---|---|---|---|
| 51450 | Carnarvon | IA | 42.25359 | -95.02166 |