| BERKSHIRE Resident total population estimate (July 1) 2009 | 129288 |
| BERKSHIRE Resident total population estimates base (April 1) 2000 | 134953 |
| BERKSHIRE Resident total population estimate percent change - April 1 2000 to July 1 2009 | -4.2 |
| BERKSHIRE Resident total population estimate net change - April 1 2000 to July 1 2009 | -5665 |
| BERKSHIRE Resident population (April 1) 2000 (complete count) | 134953 |
| BERKSHIRE Resident population under 5 years (July 1 - estimate) 2008 | 6196 |
| BERKSHIRE Resident population under 5 years percent (July 1 - estimate) 2008 | 4.8 |
| BERKSHIRE Resident population under 18 years (July 1 - estimate) 2008 | 24816 |
| BERKSHIRE Resident population under 18 years percent (July 1 - estimate) 2008 | 19.2 |
| BERKSHIRE Resident population 65 years and over percent (July 1 - estimate) 2008 | 18.3 |
| BERKSHIRE Resident population 65 years and over (July 1 - estimate) 2008 | 23662 |
| BERKSHIRE Resident population: total females percent (July 1 - estimate) 2008 | 51.9 |
| BERKSHIRE Resident population: White alone (July 1 - estimate) 2008 | 122043 |
| BERKSHIRE Resident population: Black alone (July 1 - estimate) 2008 | 3404 |
| BERKSHIRE Resident population: American Indian and Alaska Native alone (July 1 - estimate) 2008 | 232 |
| BERKSHIRE Resident population: Asian alone (July 1 - estimate) 2008 | 1827 |
| BERKSHIRE Resident population: Native Hawaiian and Other Pacific Islander alone (July 1 - estimate) 2008 | 56 |
| BERKSHIRE Resident population: Two or more races (July 1 - estimate) 2008 | 1833 |
| BERKSHIRE Resident population: Hispanic or Latino Origin (July 1 - estimate) 2008 | 3357 |
| BERKSHIRE Resident population: Not Hispanic White alone (July 1 - estimate) 2008 | 119115 |
| BERKSHIRE Resident population: White alone percent (July 1 - estimate) 2008 | 94.3 |
| BERKSHIRE Resident population: Black alone percent (July 1 - estimate) 2008 | 2.6 |
| BERKSHIRE Resident population: American Indian and Alaska Native alone percent (July 1 - estimate) 2008 | 0.2 |
| BERKSHIRE Resident population: Asian alone percent (July 1 - estimate) 2008 | 1.4 |
| BERKSHIRE Resident population: Native Hawaiian and Other Pacific Islander alone percent (July 1 - estimate) 2008 | 0 |
| BERKSHIRE Resident population: Two or more races percent (July 1 - estimate) 2008 | 1.4 |
| BERKSHIRE Resident population: Hispanic or Latino Origin percent (July 1 - estimate) 2008 | 2.6 |
| BERKSHIRE Resident population: Not Hispanic White alone percent (July 1 - estimate) 2008 | 92.1 |
| BERKSHIRE Births 2006 | 1240 |
| BERKSHIRE Deaths 2006 | 1461 |
| BERKSHIRE Infant deaths under one year 2006 | 0 |
| BERKSHIRE Population 5 years and over by residence in 1995 - percent in same house 2000 (sample) | 61.5 |
| BERKSHIRE Percent foreign born population 2000 (sample) | 3.7 |
| BERKSHIRE Population 5 years and over percent speaking language other than English at home 2000 (sample) | 6.4 |
| BERKSHIRE Educational attainment - persons 25 years and over - percent high school graduate or higher 2000 | 85.1 |
| BERKSHIRE Educational attainment - persons 25 years and over - percent bachelors degree or higher 2000 | 26 |
| BERKSHIRE Civilian noninstitutionalized population 5 years and over with a disability 2000 (sample) | 23797 |
| BERKSHIRE Average travel time to work for workers 16 years and over not working at home 2000 | 19.2 |
| BERKSHIRE Housing unit estimates as of July 1 2008 | 68253 |
| BERKSHIRE Housing unit estimates - net change April 1 2000 (base) to July 1 2008 | 1952 |
| BERKSHIRE Housing unit estimates - percent change April 1 2000 (base) to July 1 2008 | 2.9 |
| BERKSHIRE Owner-occupied housing units - percent of total occupied housing units 2000 (complete count) | 66.9 |
| BERKSHIRE Median value of specified owner-occupied housing units 2000 (sample) | 116800 |
| BERKSHIRE Housing units by units in structure - multiple units 2000 (sample) | 33.1 |
| BERKSHIRE Households 2000 (complete count) | 56006 |
| BERKSHIRE Persons per household 2000 (complete count) | 2.3 |
| BERKSHIRE Per capita income in 1999 | 21807 |
| BERKSHIRE Median household income 2008 | 45778 |
| BERKSHIRE People of all ages in poverty - percent 2008 | 12.5 |
| BERKSHIRE Personal income 2007 | 5228 |
| BERKSHIRE Per capita personal income 2007 | 40203 |
| BERKSHIRE Civilian labor force 2008 | 72153 |
| BERKSHIRE Civilian labor force unemployment 2008 | 3680 |
| BERKSHIRE Civilian labor force unemployment rate 2008 | 5.1 |
| BERKSHIRE Employment in all industries (NAICS no code) 2007 | 84847 |
| BERKSHIRE Employment in all industries net change 2000 - 2007 | 4923 |
| BERKSHIRE Employment in government (NAICS 92) 2007 | 8046 |
| BERKSHIRE Earnings in all industries (NAICS no code) 2007 | 3.42363e+06 |
| BERKSHIRE Earnings in all industries (NAICS no code) average earnings per job 2007 | 40351 |
| BERKSHIRE Private nonfarm establishments 2007 | 4304 |
| BERKSHIRE Private nonfarm employment for pay period including March 12 2007 | 57187 |
| BERKSHIRE Private nonfarm employment for pay period including March 12 2006 percent change 2000-2007 | -3 |
| BERKSHIRE Nonemployer: total (NAICS 00) - establishments 2007 | 9989 |
| BERKSHIRE Accommodation and Food Services: total (NAICS 72) - sales of establishments with payroll 2002 | 327334 |
| BERKSHIRE Total number of firms 2002 | 12898 |
| BERKSHIRE Total Black-owned firms percent 2002 | 0 |
| BERKSHIRE Total American Indian-and Alaska Native-owned firms percent 2002 | 0 |
| BERKSHIRE Total Asian-owned firms percent 2002 | 1 |
| BERKSHIRE Total Hispanic-owned firms percent 2002 | 0.8 |
| BERKSHIRE Total Native Hawaiian-and Other Pacific Islander-owned firms percent 2002 | 0 |
| BERKSHIRE Total women-owned firms percent 2002 | 30.7 |
| BERKSHIRE Manufacturing: total (NAICS 31-33) - value of shipments 2002 | 1.19517e+06 |
| BERKSHIRE Wholesale trade: total (NAICS 42) - sales of establishments with payroll 2002 | 1.54981e+06 |
| BERKSHIRE Retail trade: total (NAICS 44-45) - sales of establishments with payroll 2002 | 1.57104e+06 |
| BERKSHIRE Retail trade: total (NAICS 44-45) - sales of establishments with payroll per capita 2002 | 11785 |
| BERKSHIRE New private housing units authorized by building permits - total 2008 (20000-place universe) | 315 |
| BERKSHIRE Valuation of new private housing units authorized by building permits 2008 (20000-place universe) | 61385 |
| BERKSHIRE Land in farms (NAICS) 2007 (acres) (adjusted) | 66352 |
| BERKSHIRE Federal Government expenditure - total FY 2008 | 1.24669e+06 |
| BERKSHIRE Federal Government expenditure per capita FY 2008 | 9635 |
| BERKSHIRE Land area in square miles 2000 | 931.32 |
| BERKSHIRE Population per square mile 2000 | 145 |
