| Sunnyside, Arizona | |
| Settlement Type: | Populated place |
| Pushpin Map: | USA Arizona#USA |
| Pushpin Label: | Sunnyside |
| Pushpin Map Caption: | Location within the state of Arizona |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Arizona |
| Subdivision Type2: | County |
| Subdivision Name2: | Cochise |
| Population As Of: | 2010 |
| Population Density Sq Mi: | auto |
| Timezone: | Mountain (MST) |
| Utc Offset: | -7 |
| Timezone Dst: | MST |
| Utc Offset Dst: | -7 |
| Elevation Ft: | 5814 |
| Elevation M: | 1772 |
| Coordinates: | 31.4339°N -110.405°W |
| Postal Code Type: | ZIP codes |
| Area Code: | 520 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
Sunnyside is a populated place situated in the far west of Cochise County, Arizona, United States, located just north of the international border with Mexico.[1] It has an estimated elevation of 5814feet above sea level.
Sunnyside was founded as a religious commune by Samuel Donnelly. Donnelly also co-founded the Copper Glance Mine. Donnelly's followers were known as Donnellites, a term Donnelly himself disliked. In 1900, Donnelly became sick with Bright's disease and died on April 14, 1901. By 1903, nearly everyone had left Sunnyside. Around 1912, the camp was revived as a ranching community.[2]
Sunnyside's population in 1940 was 2 residents.[3]
Although designated officially as a 'populated place', there are no inhabitants, and Sunnyside is known locally as a ghost town.[4]