'Round Rock, AZ' definitions:

Round Rock, AZ -- U.S. Census Designated Place in Arizona

From: Gazetteer 2000
Name :
Round Rock, AZ -- U.S. Census Designated Place in Arizona
Population (2000) :
601
Housing Units (2000) :
242
Land area (2000) :
14.081010 sq. miles (36.469648 sq. km)
Water area (2000) :
0.084380 sq. miles (0.218543 sq. km)
Total area (2000) :
14.165390 sq. miles (36.688191 sq. km)
FIPS code :
61440
Located within :
Arizona (AZ), FIPS 04
Location :
36.496871 N, 109.458055 W
Note :
some ZIP codes may be omitted esp. for suburbs.