Language Spoken At Home in Mercer County
*Base on 2012 Data
| Population 5 years and over | 19,983 | 100% |
| English only | 19,550 | 97.8% |
| Language other than English | 433 | 2.2% |
| Speak English less than very well | 174 | 0.9% |
| Spanish | 240 | 1.2% |
| Speak English less than very well | 131 | 0.7% |
| Other Indo-European languages | 177 | 0.9% |
| Speak English less than very well | 27 | 0.1% |
| Asian and Pacific Islander languages | 16 | 0.1% |
| Speak English less than very well | 16 | 0.1% |
| Other languages | 0 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
Ancestry in Mercer County
*Base on 2012 Data
| Total population | 21,283 | 100% |
| American | 6,010 | 28.2% |
| Arab | 60 | 0.3% |
| Czech | 0 | 0.0% |
| Danish | 20 | 0.1% |
| Dutch | 524 | 2.5% |
| English | 2,540 | 11.9% |
| French (except Basque) | 334 | 1.6% |
| French Canadian | 17 | 0.1% |
| German | 2,969 | 14.0% |
| Greek | 0 | 0.0% |
| Hungarian | 20 | 0.1% |
| Irish | 2,912 | 13.7% |
| Italian | 278 | 1.3% |
| Lithuanian | 0 | 0.0% |
| Norwegian | 32 | 0.2% |
| Polish | 120 | 0.6% |
| Portuguese | 10 | 0.0% |
| Russian | 0 | 0.0% |
| Scotch-Irish | 471 | 2.2% |
| Scottish | 273 | 1.3% |
| Slovak | 0 | 0.0% |
| Subsaharan African | 0 | 0.0% |
| Swedish | 23 | 0.1% |
| Swiss | 31 | 0.1% |
| Ukrainian | 8 | 0.0% |
| Welsh | 143 | 0.7% |
| West Indian (excluding Hispanic origin groups) | 0 | 0.0% |
Households By Type in Mercer County
*Base on 2012 Data
| Total households | 8,486 | 100% |
| Family households (families) | 5,731 | 67.5% |
| With own children under 18 years | 2,187 | 25.8% |
| Married-couple family | 4,560 | 53.7% |
| With own children under 18 years | 1,631 | 19.2% |
| Male householder, no wife present, family | 252 | 3.0% |
| With own children under 18 years | 93 | 1.1% |
| Female householder, no husband present, family | 919 | 10.8% |
| With own children under 18 years | 463 | 5.5% |
| Nonfamily households | 2,755 | 32.5% |
| Householder living alone | 2,430 | 28.6% |
| 65 years and over | 1,076 | 12.7% |
| Households with one or more people under 18 years | 2,490 | 29.3% |
| Households with one or more people 65 years and over | 2,474 | 29.2% |
| Average household size | 2 | 0% |
| Average family size | 3 | 0% |
Relationship in Mercer County
*Base on 2012 Data
| Population in households | 21,145 | 100% |
| Householder | 8,486 | 40.1% |
| Spouse | 4,567 | 21.6% |
| Child | 6,081 | 28.8% |
| Other relatives | 1,247 | 5.9% |
| Nonrelatives | 764 | 3.6% |
| Unmarried partner | 369 | 1.7% |
Marital Status in Mercer County
*Base on 2012 Data
| Males 15 years and over | 8,099 | 100% |
| Never married | 2,009 | 24.8% |
| Now married, except separated | 4,665 | 57.6% |
| Separated | 124 | 1.5% |
| Widowed | 314 | 3.9% |
| Divorced | 987 | 12.2% |
| Females 15 years and over | 9,086 | 100% |
| Never married | 1,583 | 17.4% |
| Now married, except separated | 4,734 | 52.1% |
| Separated | 182 | 2.0% |
| Widowed | 1,206 | 13.3% |
| Divorced | 1,381 | 15.2% |
Fertility in Mercer County
*Base on 2012 Data
| Number of women 15 to 50 years old who had a birth in the past 12 months | 424 | 100% |
| Unmarried women (widowed, divorced, and never married) | 64 | 15.1% |
| Per 1,000 unmarried women | 30 | 0% |
| Per 1,000 women 15 to 50 years old | 88 | 0% |
| Per 1,000 women 15 to 19 years old | 0 | 0% |
| Per 1,000 women 20 to 34 years old | 196 | 0% |
| Per 1,000 women 35 to 50 years old | 35 | 0% |
Grandparents in Mercer County
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 430 | 100% |
| Responsible for grandchildren | 188 | 43.7% |
| Less than 1 year | 31 | 7.2% |
| 1 or 2 years | 18 | 4.2% |
| 3 or 4 years | 40 | 9.3% |
| 5 or more years | 99 | 23.0% |
| Number of grandparents responsible for own grandchildren under 18 years | 188 | 100% |
| Who are female | 132 | 70.2% |
| Who are married | 123 | 65.4% |
School Enrollment in Mercer County
*Base on 2012 Data
| Population 3 years and over enrolled in school | 4,956 | 100% |
| Nursery school, preschool | 352 | 7.1% |
| Kindergarten | 241 | 4.9% |
| Elementary school (grades 1-8) | 2,215 | 44.7% |
| High school (grades 9-12) | 1,137 | 22.9% |
| College or graduate school | 1,011 | 20.4% |
Educational Attainment in Mercer County
*Base on 2012 Data
| Population 25 years and over | 14,753 | 100% |
| Less than 9th grade | 1,077 | 7.3% |
| 9th to 12th grade, no diploma | 1,379 | 9.3% |
| High school graduate (includes equivalency) | 5,951 | 40.3% |
| Some college, no degree | 2,591 | 17.6% |
| Associate's degree | 1,130 | 7.7% |
| Bachelor's degree | 1,506 | 10.2% |
| Graduate or professional degree | 1,119 | 7.6% |
| Percent high school graduate or higher | 0 | 83.4% |
| Percent bachelor's degree or higher | 0 | 17.8% |
Veteran Status in Mercer County
*Base on 2012 Data
| Civilian population 18 years and over | 16,301 | 100% |
| Civilian veterans | 1,721 | 10.6% |
Disability Status Of The Civilian Noninstitutionalized Population in Mercer County
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 21,156 | 100% |
| With a disability | 3,952 | 18.7% |
| Under 18 years | 4,977 | 100% |
| With a disability | 296 | 5.9% |
| 18 to 64 years | 12,783 | 100% |
| With a disability | 2,172 | 17.0% |
| 65 years and over | 3,396 | 100% |
| With a disability | 1,484 | 43.7% |
Residence 1 Year Ago in Mercer County
*Base on 2012 Data
| Population 1 year and over | 20,986 | 100% |
| Same house | 17,907 | 85.3% |
| Different house in the U.S. | 3,063 | 14.6% |
| Same county | 1,752 | 8.3% |
| Different county | 1,311 | 6.2% |
| Same state | 1,045 | 5.0% |
| Different state | 266 | 1.3% |
| Abroad | 16 | 0.1% |
Place Of Birth in Mercer County
*Base on 2012 Data
| Total population | 21,283 | 100% |
| Native | 21,042 | 98.9% |
| Born in United States | 20,908 | 98.2% |
| State of residence | 17,218 | 80.9% |
| Different state | 3,690 | 17.3% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 134 | 0.6% |
| Foreign born | 241 | 1.1% |
U.S. Citizenship Status in Mercer County
*Base on 2012 Data
| Foreign-born population | 241 | 100% |
| Naturalized U.S. citizen | 102 | 42.3% |
| Not a U.S. citizen | 139 | 57.7% |
Year of Entry in Mercer County
*Base on 2012 Data
| Population born outside the United States | 375 | 100% |
| Native | 134 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 134 | 100.0% |
| Foreign born | 241 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 241 | 100.0% |
World Region Of Birth Of Foreign Born in Mercer County
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 241 | 100% |
| Europe | 79 | 32.8% |
| Asia | 59 | 24.5% |
| Africa | 0 | 0.0% |
| Oceania | 0 | 0.0% |
| Latin America | 92 | 38.2% |
| Northern America | 11 | 4.6% |