Table:
text: List of islands of the United States by area
Islands under   square miles (  km )
Islands under   square miles (  km )
Island_s_Name Area_sq_mi Area_km_2_ Location_ Population_2000
San Nicolas Island 23 59 California 0
Marquette Island 23 59 Michigan 0
Woronkofski Island 23 59 Alaska 0
Grand Island 22 58 Michigan 45
North Manitou Island 22 58 Michigan 0
Neebish Island 22 56 Michigan 66

Question: What is the smallest area with 45 inhabitants among the list of islands of the United States by area of islands under square miles km?