Salem includes the Salem Maritime National Historic Site, the
only remaining intact waterfront from the US age of sail. In
1790, Salem was the sixth largest city in the country. According
to the United States Census Bureau, the city has a total area of
46.8 km² (18.1 mi²). 21.0 km² (8.1 mi²) of it is land and 25.8
km² (9.9 mi²) of it is water. The total area is 55.09% water. As
of the census of 2000, there are 40,407 people, 17,492
households, and 9,708 families residing in the city. The
population density is 1,926.1/km² (4,986.0/mi²). There are
18,175 housing units at an average density of 866.3/km²
(2,242.7/mi²). The racial makeup of the city is 85.37% White,
3.15% African American, 0.22% Native American, 2.00% Asian,
0.05% Pacific Islander, 6.74% from other races, and 2.47% from
two or more races. 11.24% of the population are Hispanic or
Latino of any race. There are 17,492 households out of which
24.2% have children under the age of 18 living with them, 38.8%
are married couples living together, 13.3% hav