| MIDDLESEX Resident total population estimate (July 1) 2009 | 10731 |
| MIDDLESEX Resident total population estimates base (April 1) 2000 | 9939 |
| MIDDLESEX Resident total population estimate percent change - April 1 2000 to July 1 2009 | 8 |
| MIDDLESEX Resident total population estimate net change - April 1 2000 to July 1 2009 | 792 |
| MIDDLESEX Resident population (April 1) 2000 (complete count) | 9932 |
| MIDDLESEX Resident population under 5 years (July 1 - estimate) 2008 | 415 |
| MIDDLESEX Resident population under 5 years percent (July 1 - estimate) 2008 | 3.9 |
| MIDDLESEX Resident population under 18 years (July 1 - estimate) 2008 | 1758 |
| MIDDLESEX Resident population under 18 years percent (July 1 - estimate) 2008 | 16.6 |
| MIDDLESEX Resident population 65 years and over percent (July 1 - estimate) 2008 | 24 |
| MIDDLESEX Resident population 65 years and over (July 1 - estimate) 2008 | 2540 |
| MIDDLESEX Resident population: total females percent (July 1 - estimate) 2008 | 51.3 |
| MIDDLESEX Resident population: White alone (July 1 - estimate) 2008 | 8507 |
| MIDDLESEX Resident population: Black alone (July 1 - estimate) 2008 | 1970 |
| MIDDLESEX Resident population: American Indian and Alaska Native alone (July 1 - estimate) 2008 | 27 |
| MIDDLESEX Resident population: Asian alone (July 1 - estimate) 2008 | 12 |
| MIDDLESEX Resident population: Native Hawaiian and Other Pacific Islander alone (July 1 - estimate) 2008 | 0 |
| MIDDLESEX Resident population: Two or more races (July 1 - estimate) 2008 | 69 |
| MIDDLESEX Resident population: Hispanic or Latino Origin (July 1 - estimate) 2008 | 138 |
| MIDDLESEX Resident population: Not Hispanic White alone (July 1 - estimate) 2008 | 8374 |
| MIDDLESEX Resident population: White alone percent (July 1 - estimate) 2008 | 80.4 |
| MIDDLESEX Resident population: Black alone percent (July 1 - estimate) 2008 | 18.6 |
| MIDDLESEX Resident population: American Indian and Alaska Native alone percent (July 1 - estimate) 2008 | 0.3 |
| MIDDLESEX Resident population: Asian alone percent (July 1 - estimate) 2008 | 0.1 |
| MIDDLESEX Resident population: Native Hawaiian and Other Pacific Islander alone percent (July 1 - estimate) 2008 | 0 |
| MIDDLESEX Resident population: Two or more races percent (July 1 - estimate) 2008 | 0.7 |
| MIDDLESEX Resident population: Hispanic or Latino Origin percent (July 1 - estimate) 2008 | 1.3 |
| MIDDLESEX Resident population: Not Hispanic White alone percent (July 1 - estimate) 2008 | 79.1 |
| MIDDLESEX Births 2006 | 68 |
| MIDDLESEX Deaths 2006 | 126 |
| MIDDLESEX Infant deaths under one year 2006 | 0 |
| MIDDLESEX Population 5 years and over by residence in 1995 - percent in same house 2000 (sample) | 58.7 |
| MIDDLESEX Percent foreign born population 2000 (sample) | 2.1 |
| MIDDLESEX Population 5 years and over percent speaking language other than English at home 2000 (sample) | 4.2 |
| MIDDLESEX Educational attainment - persons 25 years and over - percent high school graduate or higher 2000 | 73.7 |
| MIDDLESEX Educational attainment - persons 25 years and over - percent bachelors degree or higher 2000 | 18.9 |
| MIDDLESEX Civilian noninstitutionalized population 5 years and over with a disability 2000 (sample) | 2144 |
| MIDDLESEX Average travel time to work for workers 16 years and over not working at home 2000 | 35.1 |
| MIDDLESEX Housing unit estimates as of July 1 2008 | 7231 |
| MIDDLESEX Housing unit estimates - net change April 1 2000 (base) to July 1 2008 | 868 |
| MIDDLESEX Housing unit estimates - percent change April 1 2000 (base) to July 1 2008 | 13.6 |
| MIDDLESEX Owner-occupied housing units - percent of total occupied housing units 2000 (complete count) | 83.1 |
| MIDDLESEX Median value of specified owner-occupied housing units 2000 (sample) | 124300 |
| MIDDLESEX Housing units by units in structure - multiple units 2000 (sample) | 2.6 |
| MIDDLESEX Households 2000 (complete count) | 4253 |
| MIDDLESEX Persons per household 2000 (complete count) | 2.27 |
| MIDDLESEX Per capita income in 1999 | 22708 |
| MIDDLESEX Median household income 2008 | 56599 |
| MIDDLESEX People of all ages in poverty - percent 2008 | 12.4 |
| MIDDLESEX Personal income 2007 | 374 |
| MIDDLESEX Per capita personal income 2007 | 35382 |
| MIDDLESEX Civilian labor force 2008 | 5173 |
| MIDDLESEX Civilian labor force unemployment 2008 | 198 |
| MIDDLESEX Civilian labor force unemployment rate 2008 | 3.8 |
| MIDDLESEX Employment in all industries (NAICS no code) 2007 | 5383 |
| MIDDLESEX Employment in all industries net change 2000 - 2007 | 821 |
| MIDDLESEX Employment in government (NAICS 92) 2007 | 1024 |
| MIDDLESEX Earnings in all industries (NAICS no code) 2007 | 141561 |
| MIDDLESEX Earnings in all industries (NAICS no code) average earnings per job 2007 | 26298 |
| MIDDLESEX Private nonfarm establishments 2007 | 418 |
| MIDDLESEX Private nonfarm employment for pay period including March 12 2007 | 2531 |
| MIDDLESEX Private nonfarm employment for pay period including March 12 2006 percent change 2000-2007 | 7.3 |
| MIDDLESEX Nonemployer: total (NAICS 00) - establishments 2007 | 1083 |
| MIDDLESEX Accommodation and Food Services: total (NAICS 72) - sales of establishments with payroll 2002 | 6670 |
| MIDDLESEX Total number of firms 2002 | 1273 |
| MIDDLESEX Total Black-owned firms percent 2002 | 0 |
| MIDDLESEX Total American Indian-and Alaska Native-owned firms percent 2002 | 0 |
| MIDDLESEX Total Asian-owned firms percent 2002 | 0 |
| MIDDLESEX Total Hispanic-owned firms percent 2002 | 0 |
| MIDDLESEX Total Native Hawaiian-and Other Pacific Islander-owned firms percent 2002 | 0 |
| MIDDLESEX Total women-owned firms percent 2002 | 26.9 |
| MIDDLESEX Manufacturing: total (NAICS 31-33) - value of shipments 2002 | 0 |
| MIDDLESEX Wholesale trade: total (NAICS 42) - sales of establishments with payroll 2002 | 48725 |
| MIDDLESEX Retail trade: total (NAICS 44-45) - sales of establishments with payroll 2002 | 88338 |
| MIDDLESEX Retail trade: total (NAICS 44-45) - sales of establishments with payroll per capita 2002 | 8751 |
| MIDDLESEX New private housing units authorized by building permits - total 2008 (20000-place universe) | 61 |
| MIDDLESEX Valuation of new private housing units authorized by building permits 2008 (20000-place universe) | 10253 |
| MIDDLESEX Land in farms (NAICS) 2007 (acres) (adjusted) | 17709 |
| MIDDLESEX Federal Government expenditure - total FY 2008 | 121529 |
| MIDDLESEX Federal Government expenditure per capita FY 2008 | 11481 |
| MIDDLESEX Land area in square miles 2000 | 130.3 |
| MIDDLESEX Population per square mile 2000 | 76 |