| NORTHUMBERLAND Resident total population estimate (July 1) 2009 | 12995 |
| NORTHUMBERLAND Resident total population estimates base (April 1) 2000 | 12268 |
| NORTHUMBERLAND Resident total population estimate percent change - April 1 2000 to July 1 2009 | 5.9 |
| NORTHUMBERLAND Resident total population estimate net change - April 1 2000 to July 1 2009 | 727 |
| NORTHUMBERLAND Resident population (April 1) 2000 (complete count) | 12259 |
| NORTHUMBERLAND Resident population under 5 years (July 1 - estimate) 2008 | 582 |
| NORTHUMBERLAND Resident population under 5 years percent (July 1 - estimate) 2008 | 4.5 |
| NORTHUMBERLAND Resident population under 18 years (July 1 - estimate) 2008 | 2262 |
| NORTHUMBERLAND Resident population under 18 years percent (July 1 - estimate) 2008 | 17.5 |
| NORTHUMBERLAND Resident population 65 years and over percent (July 1 - estimate) 2008 | 28.5 |
| NORTHUMBERLAND Resident population 65 years and over (July 1 - estimate) 2008 | 3686 |
| NORTHUMBERLAND Resident population: total females percent (July 1 - estimate) 2008 | 52.2 |
| NORTHUMBERLAND Resident population: White alone (July 1 - estimate) 2008 | 9599 |
| NORTHUMBERLAND Resident population: Black alone (July 1 - estimate) 2008 | 3187 |
| NORTHUMBERLAND Resident population: American Indian and Alaska Native alone (July 1 - estimate) 2008 | 18 |
| NORTHUMBERLAND Resident population: Asian alone (July 1 - estimate) 2008 | 37 |
| NORTHUMBERLAND Resident population: Native Hawaiian and Other Pacific Islander alone (July 1 - estimate) 2008 | 0 |
| NORTHUMBERLAND Resident population: Two or more races (July 1 - estimate) 2008 | 74 |
| NORTHUMBERLAND Resident population: Hispanic or Latino Origin (July 1 - estimate) 2008 | 213 |
| NORTHUMBERLAND Resident population: Not Hispanic White alone (July 1 - estimate) 2008 | 9430 |
| NORTHUMBERLAND Resident population: White alone percent (July 1 - estimate) 2008 | 74.3 |
| NORTHUMBERLAND Resident population: Black alone percent (July 1 - estimate) 2008 | 24.7 |
| NORTHUMBERLAND Resident population: American Indian and Alaska Native alone percent (July 1 - estimate) 2008 | 0.1 |
| NORTHUMBERLAND Resident population: Asian alone percent (July 1 - estimate) 2008 | 0.3 |
| NORTHUMBERLAND Resident population: Native Hawaiian and Other Pacific Islander alone percent (July 1 - estimate) 2008 | 0 |
| NORTHUMBERLAND Resident population: Two or more races percent (July 1 - estimate) 2008 | 0.6 |
| NORTHUMBERLAND Resident population: Hispanic or Latino Origin percent (July 1 - estimate) 2008 | 1.6 |
| NORTHUMBERLAND Resident population: Not Hispanic White alone percent (July 1 - estimate) 2008 | 73 |
| NORTHUMBERLAND Births 2006 | 110 |
| NORTHUMBERLAND Deaths 2006 | 184 |
| NORTHUMBERLAND Infant deaths under one year 2006 | 0 |
| NORTHUMBERLAND Population 5 years and over by residence in 1995 - percent in same house 2000 (sample) | 64.6 |
| NORTHUMBERLAND Percent foreign born population 2000 (sample) | 1.6 |
| NORTHUMBERLAND Population 5 years and over percent speaking language other than English at home 2000 (sample) | 2.5 |
| NORTHUMBERLAND Educational attainment - persons 25 years and over - percent high school graduate or higher 2000 | 75.9 |
| NORTHUMBERLAND Educational attainment - persons 25 years and over - percent bachelors degree or higher 2000 | 21.7 |
| NORTHUMBERLAND Civilian noninstitutionalized population 5 years and over with a disability 2000 (sample) | 2781 |
| NORTHUMBERLAND Average travel time to work for workers 16 years and over not working at home 2000 | 28.4 |
| NORTHUMBERLAND Housing unit estimates as of July 1 2008 | 9435 |
| NORTHUMBERLAND Housing unit estimates - net change April 1 2000 (base) to July 1 2008 | 1370 |
| NORTHUMBERLAND Housing unit estimates - percent change April 1 2000 (base) to July 1 2008 | 17 |
| NORTHUMBERLAND Owner-occupied housing units - percent of total occupied housing units 2000 (complete count) | 87.4 |
| NORTHUMBERLAND Median value of specified owner-occupied housing units 2000 (sample) | 129100 |
| NORTHUMBERLAND Housing units by units in structure - multiple units 2000 (sample) | 1.1 |
| NORTHUMBERLAND Households 2000 (complete count) | 5470 |
| NORTHUMBERLAND Persons per household 2000 (complete count) | 2.24 |
| NORTHUMBERLAND Per capita income in 1999 | 22917 |
| NORTHUMBERLAND Median household income 2008 | 47152 |
| NORTHUMBERLAND People of all ages in poverty - percent 2008 | 13 |
| NORTHUMBERLAND Personal income 2007 | 428 |
| NORTHUMBERLAND Per capita personal income 2007 | 33250 |
| NORTHUMBERLAND Civilian labor force 2008 | 5922 |
| NORTHUMBERLAND Civilian labor force unemployment 2008 | 340 |
| NORTHUMBERLAND Civilian labor force unemployment rate 2008 | 5.7 |
| NORTHUMBERLAND Employment in all industries (NAICS no code) 2007 | 4910 |
| NORTHUMBERLAND Employment in all industries net change 2000 - 2007 | 618 |
| NORTHUMBERLAND Employment in government (NAICS 92) 2007 | 558 |
| NORTHUMBERLAND Earnings in all industries (NAICS no code) 2007 | 122955 |
| NORTHUMBERLAND Earnings in all industries (NAICS no code) average earnings per job 2007 | 25042 |
| NORTHUMBERLAND Private nonfarm establishments 2007 | 398 |
| NORTHUMBERLAND Private nonfarm employment for pay period including March 12 2007 | 2014 |
| NORTHUMBERLAND Private nonfarm employment for pay period including March 12 2006 percent change 2000-2007 | -5.5 |
| NORTHUMBERLAND Nonemployer: total (NAICS 00) - establishments 2007 | 1190 |
| NORTHUMBERLAND Accommodation and Food Services: total (NAICS 72) - sales of establishments with payroll 2002 | 5117 |
| NORTHUMBERLAND Total number of firms 2002 | 1313 |
| NORTHUMBERLAND Total Black-owned firms percent 2002 | 0 |
| NORTHUMBERLAND Total American Indian-and Alaska Native-owned firms percent 2002 | 0 |
| NORTHUMBERLAND Total Asian-owned firms percent 2002 | 0 |
| NORTHUMBERLAND Total Hispanic-owned firms percent 2002 | 0 |
| NORTHUMBERLAND Total Native Hawaiian-and Other Pacific Islander-owned firms percent 2002 | 0 |
| NORTHUMBERLAND Total women-owned firms percent 2002 | 26.3 |
| NORTHUMBERLAND Manufacturing: total (NAICS 31-33) - value of shipments 2002 | 0 |
| NORTHUMBERLAND Wholesale trade: total (NAICS 42) - sales of establishments with payroll 2002 | 30144 |
| NORTHUMBERLAND Retail trade: total (NAICS 44-45) - sales of establishments with payroll 2002 | 61185 |
| NORTHUMBERLAND Retail trade: total (NAICS 44-45) - sales of establishments with payroll per capita 2002 | 4857 |
| NORTHUMBERLAND New private housing units authorized by building permits - total 2008 (20000-place universe) | 82 |
| NORTHUMBERLAND Valuation of new private housing units authorized by building permits 2008 (20000-place universe) | 24077 |
| NORTHUMBERLAND Land in farms (NAICS) 2007 (acres) (adjusted) | 44383 |
| NORTHUMBERLAND Federal Government expenditure - total FY 2008 | 114914 |
| NORTHUMBERLAND Federal Government expenditure per capita FY 2008 | 8898 |
| NORTHUMBERLAND Land area in square miles 2000 | 192.3 |
| NORTHUMBERLAND Population per square mile 2000 | 64 |
