| MERRIMACK Resident total population estimate (July 1) 2009 | 149071 |
| MERRIMACK Resident total population estimates base (April 1) 2000 | 136223 |
| MERRIMACK Resident total population estimate percent change - April 1 2000 to July 1 2009 | 9.4 |
| MERRIMACK Resident total population estimate net change - April 1 2000 to July 1 2009 | 12848 |
| MERRIMACK Resident population (April 1) 2000 (complete count) | 136225 |
| MERRIMACK Resident population under 5 years (July 1 - estimate) 2008 | 7891 |
| MERRIMACK Resident population under 5 years percent (July 1 - estimate) 2008 | 5.3 |
| MERRIMACK Resident population under 18 years (July 1 - estimate) 2008 | 31963 |
| MERRIMACK Resident population under 18 years percent (July 1 - estimate) 2008 | 21.6 |
| MERRIMACK Resident population 65 years and over percent (July 1 - estimate) 2008 | 12.9 |
| MERRIMACK Resident population 65 years and over (July 1 - estimate) 2008 | 19097 |
| MERRIMACK Resident population: total females percent (July 1 - estimate) 2008 | 50.6 |
| MERRIMACK Resident population: White alone (July 1 - estimate) 2008 | 142859 |
| MERRIMACK Resident population: Black alone (July 1 - estimate) 2008 | 1391 |
| MERRIMACK Resident population: American Indian and Alaska Native alone (July 1 - estimate) 2008 | 352 |
| MERRIMACK Resident population: Asian alone (July 1 - estimate) 2008 | 1877 |
| MERRIMACK Resident population: Native Hawaiian and Other Pacific Islander alone (July 1 - estimate) 2008 | 65 |
| MERRIMACK Resident population: Two or more races (July 1 - estimate) 2008 | 1617 |
| MERRIMACK Resident population: Hispanic or Latino Origin (July 1 - estimate) 2008 | 2150 |
| MERRIMACK Resident population: Not Hispanic White alone (July 1 - estimate) 2008 | 140924 |
| MERRIMACK Resident population: White alone percent (July 1 - estimate) 2008 | 96.4 |
| MERRIMACK Resident population: Black alone percent (July 1 - estimate) 2008 | 0.9 |
| MERRIMACK Resident population: American Indian and Alaska Native alone percent (July 1 - estimate) 2008 | 0.2 |
| MERRIMACK Resident population: Asian alone percent (July 1 - estimate) 2008 | 1.3 |
| MERRIMACK Resident population: Native Hawaiian and Other Pacific Islander alone percent (July 1 - estimate) 2008 | 0 |
| MERRIMACK Resident population: Two or more races percent (July 1 - estimate) 2008 | 1.1 |
| MERRIMACK Resident population: Hispanic or Latino Origin percent (July 1 - estimate) 2008 | 1.5 |
| MERRIMACK Resident population: Not Hispanic White alone percent (July 1 - estimate) 2008 | 95.1 |
| MERRIMACK Births 2006 | 1606 |
| MERRIMACK Deaths 2006 | 1161 |
| MERRIMACK Infant deaths under one year 2006 | 10 |
| MERRIMACK Population 5 years and over by residence in 1995 - percent in same house 2000 (sample) | 55.6 |
| MERRIMACK Percent foreign born population 2000 (sample) | 3.2 |
| MERRIMACK Population 5 years and over percent speaking language other than English at home 2000 (sample) | 6.4 |
| MERRIMACK Educational attainment - persons 25 years and over - percent high school graduate or higher 2000 | 88.2 |
| MERRIMACK Educational attainment - persons 25 years and over - percent bachelors degree or higher 2000 | 29.1 |
| MERRIMACK Civilian noninstitutionalized population 5 years and over with a disability 2000 (sample) | 21217 |
| MERRIMACK Average travel time to work for workers 16 years and over not working at home 2000 | 24.3 |
| MERRIMACK Housing unit estimates as of July 1 2008 | 61987 |
| MERRIMACK Housing unit estimates - net change April 1 2000 (base) to July 1 2008 | 5744 |
| MERRIMACK Housing unit estimates - percent change April 1 2000 (base) to July 1 2008 | 10.2 |
| MERRIMACK Owner-occupied housing units - percent of total occupied housing units 2000 (complete count) | 69.5 |
| MERRIMACK Median value of specified owner-occupied housing units 2000 (sample) | 117900 |
| MERRIMACK Housing units by units in structure - multiple units 2000 (sample) | 26.6 |
| MERRIMACK Households 2000 (complete count) | 51843 |
| MERRIMACK Persons per household 2000 (complete count) | 2.51 |
| MERRIMACK Per capita income in 1999 | 23208 |
| MERRIMACK Median household income 2008 | 64885 |
| MERRIMACK People of all ages in poverty - percent 2008 | 8.6 |
| MERRIMACK Personal income 2007 | 5725 |
| MERRIMACK Per capita personal income 2007 | 38661 |
| MERRIMACK Civilian labor force 2008 | 80573 |
| MERRIMACK Civilian labor force unemployment 2008 | 2903 |
| MERRIMACK Civilian labor force unemployment rate 2008 | 3.6 |
| MERRIMACK Employment in all industries (NAICS no code) 2007 | 97448 |
| MERRIMACK Employment in all industries net change 2000 - 2007 | 7374 |
| MERRIMACK Employment in government (NAICS 92) 2007 | 17222 |
| MERRIMACK Earnings in all industries (NAICS no code) 2007 | 4.3379e+06 |
| MERRIMACK Earnings in all industries (NAICS no code) average earnings per job 2007 | 44515 |
| MERRIMACK Private nonfarm establishments 2007 | 4337 |
| MERRIMACK Private nonfarm employment for pay period including March 12 2007 | 61749 |
| MERRIMACK Private nonfarm employment for pay period including March 12 2006 percent change 2000-2007 | 10.8 |
| MERRIMACK Nonemployer: total (NAICS 00) - establishments 2007 | 11888 |
| MERRIMACK Accommodation and Food Services: total (NAICS 72) - sales of establishments with payroll 2002 | 172795 |
| MERRIMACK Total number of firms 2002 | 13782 |
| MERRIMACK Total Black-owned firms percent 2002 | 0 |
| MERRIMACK Total American Indian-and Alaska Native-owned firms percent 2002 | 0 |
| MERRIMACK Total Asian-owned firms percent 2002 | 1.6 |
| MERRIMACK Total Hispanic-owned firms percent 2002 | 0 |
| MERRIMACK Total Native Hawaiian-and Other Pacific Islander-owned firms percent 2002 | 0 |
| MERRIMACK Total women-owned firms percent 2002 | 26.3 |
| MERRIMACK Manufacturing: total (NAICS 31-33) - value of shipments 2002 | 1.28249e+06 |
| MERRIMACK Wholesale trade: total (NAICS 42) - sales of establishments with payroll 2002 | 2.19783e+06 |
| MERRIMACK Retail trade: total (NAICS 44-45) - sales of establishments with payroll 2002 | 2.05672e+06 |
| MERRIMACK Retail trade: total (NAICS 44-45) - sales of establishments with payroll per capita 2002 | 14503 |
| MERRIMACK New private housing units authorized by building permits - total 2008 (20000-place universe) | 337 |
| MERRIMACK Valuation of new private housing units authorized by building permits 2008 (20000-place universe) | 54634 |
| MERRIMACK Land in farms (NAICS) 2007 (acres) (adjusted) | 64642 |
| MERRIMACK Federal Government expenditure - total FY 2008 | 1.15631e+06 |
| MERRIMACK Federal Government expenditure per capita FY 2008 | 7804 |
| MERRIMACK Land area in square miles 2000 | 934.43 |
| MERRIMACK Population per square mile 2000 | 146 |
