| MARENGO Resident total population estimate (July 1) 2009 | 20943 |
| MARENGO Resident total population estimates base (April 1) 2000 | 22537 |
| MARENGO Resident total population estimate percent change - April 1 2000 to July 1 2009 | -7.1 |
| MARENGO Resident total population estimate net change - April 1 2000 to July 1 2009 | -1594 |
| MARENGO Resident population (April 1) 2000 (complete count) | 22539 |
| MARENGO Resident population under 5 years (July 1 - estimate) 2008 | 1357 |
| MARENGO Resident population under 5 years percent (July 1 - estimate) 2008 | 6.4 |
| MARENGO Resident population under 18 years (July 1 - estimate) 2008 | 5288 |
| MARENGO Resident population under 18 years percent (July 1 - estimate) 2008 | 25.1 |
| MARENGO Resident population 65 years and over percent (July 1 - estimate) 2008 | 15.3 |
| MARENGO Resident population 65 years and over (July 1 - estimate) 2008 | 3216 |
| MARENGO Resident population: total females percent (July 1 - estimate) 2008 | 52.9 |
| MARENGO Resident population: White alone (July 1 - estimate) 2008 | 10044 |
| MARENGO Resident population: Black alone (July 1 - estimate) 2008 | 10806 |
| MARENGO Resident population: American Indian and Alaska Native alone (July 1 - estimate) 2008 | 19 |
| MARENGO Resident population: Asian alone (July 1 - estimate) 2008 | 45 |
| MARENGO Resident population: Native Hawaiian and Other Pacific Islander alone (July 1 - estimate) 2008 | 3 |
| MARENGO Resident population: Two or more races (July 1 - estimate) 2008 | 138 |
| MARENGO Resident population: Hispanic or Latino Origin (July 1 - estimate) 2008 | 406 |
| MARENGO Resident population: Not Hispanic White alone (July 1 - estimate) 2008 | 9735 |
| MARENGO Resident population: White alone percent (July 1 - estimate) 2008 | 47.7 |
| MARENGO Resident population: Black alone percent (July 1 - estimate) 2008 | 51.3 |
| MARENGO Resident population: American Indian and Alaska Native alone percent (July 1 - estimate) 2008 | 0.1 |
| MARENGO Resident population: Asian alone percent (July 1 - estimate) 2008 | 0.2 |
| MARENGO Resident population: Native Hawaiian and Other Pacific Islander alone percent (July 1 - estimate) 2008 | 0 |
| MARENGO Resident population: Two or more races percent (July 1 - estimate) 2008 | 0.7 |
| MARENGO Resident population: Hispanic or Latino Origin percent (July 1 - estimate) 2008 | 1.9 |
| MARENGO Resident population: Not Hispanic White alone percent (July 1 - estimate) 2008 | 46.2 |
| MARENGO Births 2006 | 269 |
| MARENGO Deaths 2006 | 277 |
| MARENGO Infant deaths under one year 2006 | 1 |
| MARENGO Population 5 years and over by residence in 1995 - percent in same house 2000 (sample) | 68.4 |
| MARENGO Percent foreign born population 2000 (sample) | 0.7 |
| MARENGO Population 5 years and over percent speaking language other than English at home 2000 (sample) | 2.5 |
| MARENGO Educational attainment - persons 25 years and over - percent high school graduate or higher 2000 | 71.9 |
| MARENGO Educational attainment - persons 25 years and over - percent bachelors degree or higher 2000 | 12.1 |
| MARENGO Civilian noninstitutionalized population 5 years and over with a disability 2000 (sample) | 5928 |
| MARENGO Average travel time to work for workers 16 years and over not working at home 2000 | 25.5 |
| MARENGO Housing unit estimates as of July 1 2008 | 10373 |
| MARENGO Housing unit estimates - net change April 1 2000 (base) to July 1 2008 | 247 |
| MARENGO Housing unit estimates - percent change April 1 2000 (base) to July 1 2008 | 2.4 |
| MARENGO Owner-occupied housing units - percent of total occupied housing units 2000 (complete count) | 79.2 |
| MARENGO Median value of specified owner-occupied housing units 2000 (sample) | 65900 |
| MARENGO Housing units by units in structure - multiple units 2000 (sample) | 9.6 |
| MARENGO Households 2000 (complete count) | 8767 |
| MARENGO Persons per household 2000 (complete count) | 2.55 |
| MARENGO Per capita income in 1999 | 15308 |
| MARENGO Median household income 2008 | 32381 |
| MARENGO People of all ages in poverty - percent 2008 | 22.6 |
| MARENGO Personal income 2007 | 609 |
| MARENGO Per capita personal income 2007 | 28686 |
| MARENGO Civilian labor force 2008 | 7894 |
| MARENGO Civilian labor force unemployment 2008 | 525 |
| MARENGO Civilian labor force unemployment rate 2008 | 6.7 |
| MARENGO Employment in all industries (NAICS no code) 2007 | 10655 |
| MARENGO Employment in all industries net change 2000 - 2007 | -253 |
| MARENGO Employment in government (NAICS 92) 2007 | 1989 |
| MARENGO Earnings in all industries (NAICS no code) 2007 | 365588 |
| MARENGO Earnings in all industries (NAICS no code) average earnings per job 2007 | 34311 |
| MARENGO Private nonfarm establishments 2007 | 528 |
| MARENGO Private nonfarm employment for pay period including March 12 2007 | 6855 |
| MARENGO Private nonfarm employment for pay period including March 12 2006 percent change 2000-2007 | 11.1 |
| MARENGO Nonemployer: total (NAICS 00) - establishments 2007 | 1112 |
| MARENGO Accommodation and Food Services: total (NAICS 72) - sales of establishments with payroll 2002 | 13129 |
| MARENGO Total number of firms 2002 | 1221 |
| MARENGO Total Black-owned firms percent 2002 | 10.5 |
| MARENGO Total American Indian-and Alaska Native-owned firms percent 2002 | 0 |
| MARENGO Total Asian-owned firms percent 2002 | 0 |
| MARENGO Total Hispanic-owned firms percent 2002 | 0 |
| MARENGO Total Native Hawaiian-and Other Pacific Islander-owned firms percent 2002 | 0 |
| MARENGO Total women-owned firms percent 2002 | 0 |
| MARENGO Manufacturing: total (NAICS 31-33) - value of shipments 2002 | 476166 |
| MARENGO Wholesale trade: total (NAICS 42) - sales of establishments with payroll 2002 | 0 |
| MARENGO Retail trade: total (NAICS 44-45) - sales of establishments with payroll 2002 | 164079 |
| MARENGO Retail trade: total (NAICS 44-45) - sales of establishments with payroll per capita 2002 | 7325 |
| MARENGO New private housing units authorized by building permits - total 2008 (20000-place universe) | 26 |
| MARENGO Valuation of new private housing units authorized by building permits 2008 (20000-place universe) | 2405 |
| MARENGO Land in farms (NAICS) 2007 (acres) (adjusted) | 178157 |
| MARENGO Federal Government expenditure - total FY 2008 | 181742 |
| MARENGO Federal Government expenditure per capita FY 2008 | 8632 |
| MARENGO Land area in square miles 2000 | 977.04 |
| MARENGO Population per square mile 2000 | 23 |