Rome and San Diego
Comparison by area and population

Rome

Italy

San Diego

United States

Population

2 865 151
 (2014)

2 865 151
(2014)

1 366 865
(2008)
1 366 865
 (2008)

Area

1 287 km2

1 287 km2

963 km2
963 km2

Population density

2 226.22
/km2

2 226.22/km2

1 419.38/km2
1 419.38
 /km2
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