| MERCER Resident total population estimate (July 1) 2009 | 40666 |
| MERCER Resident total population estimates base (April 1) 2000 | 40924 |
| MERCER Resident total population estimate percent change - April 1 2000 to July 1 2009 | -0.6 |
| MERCER Resident total population estimate net change - April 1 2000 to July 1 2009 | -258 |
| MERCER Resident population (April 1) 2000 (complete count) | 40924 |
| MERCER Resident population under 5 years (July 1 - estimate) 2008 | 2815 |
| MERCER Resident population under 5 years percent (July 1 - estimate) 2008 | 6.9 |
| MERCER Resident population under 18 years (July 1 - estimate) 2008 | 10576 |
| MERCER Resident population under 18 years percent (July 1 - estimate) 2008 | 25.9 |
| MERCER Resident population 65 years and over percent (July 1 - estimate) 2008 | 14.8 |
| MERCER Resident population 65 years and over (July 1 - estimate) 2008 | 6028 |
| MERCER Resident population: total females percent (July 1 - estimate) 2008 | 49.7 |
| MERCER Resident population: White alone (July 1 - estimate) 2008 | 40082 |
| MERCER Resident population: Black alone (July 1 - estimate) 2008 | 131 |
| MERCER Resident population: American Indian and Alaska Native alone (July 1 - estimate) 2008 | 119 |
| MERCER Resident population: Asian alone (July 1 - estimate) 2008 | 223 |
| MERCER Resident population: Native Hawaiian and Other Pacific Islander alone (July 1 - estimate) 2008 | 12 |
| MERCER Resident population: Two or more races (July 1 - estimate) 2008 | 251 |
| MERCER Resident population: Hispanic or Latino Origin (July 1 - estimate) 2008 | 588 |
| MERCER Resident population: Not Hispanic White alone (July 1 - estimate) 2008 | 39542 |
| MERCER Resident population: White alone percent (July 1 - estimate) 2008 | 98.2 |
| MERCER Resident population: Black alone percent (July 1 - estimate) 2008 | 0.3 |
| MERCER Resident population: American Indian and Alaska Native alone percent (July 1 - estimate) 2008 | 0.3 |
| MERCER Resident population: Asian alone percent (July 1 - estimate) 2008 | 0.5 |
| MERCER Resident population: Native Hawaiian and Other Pacific Islander alone percent (July 1 - estimate) 2008 | 0 |
| MERCER Resident population: Two or more races percent (July 1 - estimate) 2008 | 0.6 |
| MERCER Resident population: Hispanic or Latino Origin percent (July 1 - estimate) 2008 | 1.4 |
| MERCER Resident population: Not Hispanic White alone percent (July 1 - estimate) 2008 | 96.9 |
| MERCER Births 2006 | 567 |
| MERCER Deaths 2006 | 388 |
| MERCER Infant deaths under one year 2006 | 1 |
| MERCER Population 5 years and over by residence in 1995 - percent in same house 2000 (sample) | 66.2 |
| MERCER Percent foreign born population 2000 (sample) | 0.8 |
| MERCER Population 5 years and over percent speaking language other than English at home 2000 (sample) | 2.7 |
| MERCER Educational attainment - persons 25 years and over - percent high school graduate or higher 2000 | 84 |
| MERCER Educational attainment - persons 25 years and over - percent bachelors degree or higher 2000 | 12.7 |
| MERCER Civilian noninstitutionalized population 5 years and over with a disability 2000 (sample) | 5584 |
| MERCER Average travel time to work for workers 16 years and over not working at home 2000 | 19.9 |
| MERCER Housing unit estimates as of July 1 2008 | 16792 |
| MERCER Housing unit estimates - net change April 1 2000 (base) to July 1 2008 | 917 |
| MERCER Housing unit estimates - percent change April 1 2000 (base) to July 1 2008 | 5.8 |
| MERCER Owner-occupied housing units - percent of total occupied housing units 2000 (complete count) | 80.1 |
| MERCER Median value of specified owner-occupied housing units 2000 (sample) | 94000 |
| MERCER Housing units by units in structure - multiple units 2000 (sample) | 10.8 |
| MERCER Households 2000 (complete count) | 14756 |
| MERCER Persons per household 2000 (complete count) | 2.74 |
| MERCER Per capita income in 1999 | 18531 |
| MERCER Median household income 2008 | 51293 |
| MERCER People of all ages in poverty - percent 2008 | 7.2 |
| MERCER Personal income 2007 | 1266 |
| MERCER Per capita personal income 2007 | 31025 |
| MERCER Civilian labor force 2008 | 24879 |
| MERCER Civilian labor force unemployment 2008 | 1207 |
| MERCER Civilian labor force unemployment rate 2008 | 4.9 |
| MERCER Employment in all industries (NAICS no code) 2007 | 23569 |
| MERCER Employment in all industries net change 2000 - 2007 | 2203 |
| MERCER Employment in government (NAICS 92) 2007 | 2888 |
| MERCER Earnings in all industries (NAICS no code) 2007 | 795208 |
| MERCER Earnings in all industries (NAICS no code) average earnings per job 2007 | 33740 |
| MERCER Private nonfarm establishments 2007 | 989 |
| MERCER Private nonfarm employment for pay period including March 12 2007 | 14301 |
| MERCER Private nonfarm employment for pay period including March 12 2006 percent change 2000-2007 | 14.5 |
| MERCER Nonemployer: total (NAICS 00) - establishments 2007 | 2356 |
| MERCER Accommodation and Food Services: total (NAICS 72) - sales of establishments with payroll 2002 | 35663 |
| MERCER Total number of firms 2002 | 3005 |
| MERCER Total Black-owned firms percent 2002 | 0 |
| MERCER Total American Indian-and Alaska Native-owned firms percent 2002 | 0 |
| MERCER Total Asian-owned firms percent 2002 | 0 |
| MERCER Total Hispanic-owned firms percent 2002 | 0 |
| MERCER Total Native Hawaiian-and Other Pacific Islander-owned firms percent 2002 | 0 |
| MERCER Total women-owned firms percent 2002 | 0 |
| MERCER Manufacturing: total (NAICS 31-33) - value of shipments 2002 | 622622 |
| MERCER Wholesale trade: total (NAICS 42) - sales of establishments with payroll 2002 | 422603 |
| MERCER Retail trade: total (NAICS 44-45) - sales of establishments with payroll 2002 | 349982 |
| MERCER Retail trade: total (NAICS 44-45) - sales of establishments with payroll per capita 2002 | 8549 |
| MERCER New private housing units authorized by building permits - total 2008 (20000-place universe) | 69 |
| MERCER Valuation of new private housing units authorized by building permits 2008 (20000-place universe) | 14715 |
| MERCER Land in farms (NAICS) 2007 (acres) (adjusted) | 293026 |
| MERCER Federal Government expenditure - total FY 2008 | 143705 |
| MERCER Federal Government expenditure per capita FY 2008 | 3521 |
| MERCER Land area in square miles 2000 | 463.27 |
| MERCER Population per square mile 2000 | 88 |