Round Rock (Arizona)
| Round skirt | |
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 Location in County and Arizona
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| Basic data | |
| State : | United States |
| State : | Arizona |
| County : | Apache County |
| Coordinates : | 36 ° 30 ′ N , 109 ° 27 ′ W |
| Time zone : | Mountain Standard Time ( UTC − 7 ) |
| Residents : | 601 (as of: 2000) |
| Population density : | 16.5 inhabitants per km 2 |
| Area : | 36.8 km 2 (approx. 14 mi 2 ) of which 36.5 km 2 (approx. 14 mi 2 ) is land |
| Height : | 1631 m |
| Postal code : | 86547 |
| Area code : | +1 928 |
| FIPS : | 04-61440 |
| GNIS ID : | 0024590 |
Round Rock ( Navajo : Tsé Nikání ) is a census-designated place in Apache County in the US state of Arizona . It has 601 inhabitants on 36 km². The population density is 16.5 / km². The settlement is at 1628 meters above sea level and on US Highway 191 .