'Merrimack County' definitions:
Merrimack -- U.S. County in New Hampshire
From: Gazetteer 2000
Name :
Merrimack -- U.S. County in New Hampshire
Population (2000) :
136225
Housing Units (2000) :
56244
Land area (2000) :
934.430198 sq. miles (2420.162999 sq. km)
Water area (2000) :
22.060394 sq. miles (57.136156 sq. km)
Total area (2000) :
956.490592 sq. miles (2477.299155 sq. km)
Located within :
New Hampshire (NH), FIPS 33
Location :
43.277704 N, 71.637253 W