| Official Name: | Carnarvon, Iowa |
| Pushpin Map: | Iowa |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Sac |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1260 |
| Coordinates: | 42.2536°N -95.0217°W |
| Area Code: | 712 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 455175 |
Carnarvon is an unincorporated community in Sac County, in the U.S. state of Iowa.
A post office was established at Carnarvon in 1888.[1] The community was named after Caernarfon, in Wales, the former hometown of a first settler.[2]
The population was 111 in 1940.[3]