Language Spoken At Home in Rock Creek
*Base on 2012 Data
| Population 5 years and over | 1,383 | 100% |
| English only | 1,368 | 98.9% |
| Language other than English | 15 | 1.1% |
| Speak English less than very well | 0 | 0.0% |
| Spanish | 0 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
| Other Indo-European languages | 15 | 1.1% |
| Speak English less than very well | 0 | 0.0% |
| Asian and Pacific Islander languages | 0 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
| Other languages | 0 | 0.0% |
| Speak English less than very well | 0 | 0.0% |
Ancestry in Rock Creek
*Base on 2012 Data
| Total population | 1,424 | 100% |
| American | 333 | 23.4% |
| Arab | 0 | 0.0% |
| Czech | 0 | 0.0% |
| Danish | 0 | 0.0% |
| Dutch | 8 | 0.6% |
| English | 237 | 16.6% |
| French (except Basque) | 72 | 5.1% |
| French Canadian | 0 | 0.0% |
| German | 85 | 6.0% |
| Greek | 0 | 0.0% |
| Hungarian | 0 | 0.0% |
| Irish | 374 | 26.3% |
| Italian | 0 | 0.0% |
| Lithuanian | 0 | 0.0% |
| Norwegian | 0 | 0.0% |
| Polish | 0 | 0.0% |
| Portuguese | 0 | 0.0% |
| Russian | 0 | 0.0% |
| Scotch-Irish | 21 | 1.5% |
| Scottish | 11 | 0.8% |
| Slovak | 0 | 0.0% |
| Subsaharan African | 0 | 0.0% |
| Swedish | 0 | 0.0% |
| Swiss | 0 | 0.0% |
| Ukrainian | 0 | 0.0% |
| Welsh | 0 | 0.0% |
| West Indian (excluding Hispanic origin groups) | 0 | 0.0% |
Households By Type in Rock Creek
*Base on 2012 Data
| Total households | 542 | 100% |
| Family households (families) | 413 | 76.2% |
| With own children under 18 years | 179 | 33.0% |
| Married-couple family | 326 | 60.1% |
| With own children under 18 years | 120 | 22.1% |
| Male householder, no wife present, family | 0 | 0.0% |
| With own children under 18 years | 0 | 0.0% |
| Female householder, no husband present, family | 87 | 16.1% |
| With own children under 18 years | 59 | 10.9% |
| Nonfamily households | 129 | 23.8% |
| Householder living alone | 94 | 17.3% |
| 65 years and over | 8 | 1.5% |
| Households with one or more people under 18 years | 248 | 45.8% |
| Households with one or more people 65 years and over | 146 | 26.9% |
| Average household size | 3 | 0% |
| Average family size | 3 | 0% |
Relationship in Rock Creek
*Base on 2012 Data
| Population in households | 1,424 | 100% |
| Householder | 542 | 38.1% |
| Spouse | 323 | 22.7% |
| Child | 377 | 26.5% |
| Other relatives | 140 | 9.8% |
| Nonrelatives | 42 | 2.9% |
| Unmarried partner | 18 | 1.3% |
Marital Status in Rock Creek
*Base on 2012 Data
| Males 15 years and over | 547 | 100% |
| Never married | 200 | 36.6% |
| Now married, except separated | 320 | 58.5% |
| Separated | 0 | 0.0% |
| Widowed | 0 | 0.0% |
| Divorced | 27 | 4.9% |
| Females 15 years and over | 749 | 100% |
| Never married | 263 | 35.1% |
| Now married, except separated | 329 | 43.9% |
| Separated | 0 | 0.0% |
| Widowed | 13 | 1.7% |
| Divorced | 144 | 19.2% |
Fertility in Rock Creek
*Base on 2012 Data
| Number of women 15 to 50 years old who had a birth in the past 12 months | 0 | 0% |
| Unmarried women (widowed, divorced, and never married) | 0 | 0% |
| Per 1,000 unmarried women | 0 | 0% |
| Per 1,000 women 15 to 50 years old | 0 | 0% |
| Per 1,000 women 15 to 19 years old | 0 | 0% |
| Per 1,000 women 20 to 34 years old | 0 | 0% |
| Per 1,000 women 35 to 50 years old | 0 | 0% |
Grandparents in Rock Creek
*Base on 2012 Data
| Number of grandparents living with own grandchildren under 18 years | 142 | 100% |
| Responsible for grandchildren | 142 | 100.0% |
| Less than 1 year | 0 | 0.0% |
| 1 or 2 years | 0 | 0.0% |
| 3 or 4 years | 0 | 0.0% |
| 5 or more years | 142 | 100.0% |
| Number of grandparents responsible for own grandchildren under 18 years | 142 | 100% |
| Who are female | 73 | 51.4% |
| Who are married | 142 | 100.0% |
School Enrollment in Rock Creek
*Base on 2012 Data
| Population 3 years and over enrolled in school | 417 | 100% |
| Nursery school, preschool | 26 | 6.2% |
| Kindergarten | 0 | 0.0% |
| Elementary school (grades 1-8) | 87 | 20.9% |
| High school (grades 9-12) | 229 | 54.9% |
| College or graduate school | 75 | 18.0% |
Educational Attainment in Rock Creek
*Base on 2012 Data
| Population 25 years and over | 965 | 100% |
| Less than 9th grade | 23 | 2.4% |
| 9th to 12th grade, no diploma | 111 | 11.5% |
| High school graduate (includes equivalency) | 485 | 50.3% |
| Some college, no degree | 128 | 13.3% |
| Associate's degree | 86 | 8.9% |
| Bachelor's degree | 109 | 11.3% |
| Graduate or professional degree | 23 | 2.4% |
| Percent high school graduate or higher | 0 | 86.1% |
| Percent bachelor's degree or higher | 0 | 13.7% |
Veteran Status in Rock Creek
*Base on 2012 Data
| Civilian population 18 years and over | 1,073 | 100% |
| Civilian veterans | 63 | 5.9% |
Disability Status Of The Civilian Noninstitutionalized Population in Rock Creek
*Base on 2012 Data
| Total Civilian Noninstitutionalized Population | 1,424 | 100% |
| With a disability | 212 | 14.9% |
| Under 18 years | 351 | 100% |
| With a disability | 27 | 7.7% |
| 18 to 64 years | 807 | 100% |
| With a disability | 141 | 17.5% |
| 65 years and over | 266 | 100% |
| With a disability | 44 | 16.5% |
Residence 1 Year Ago in Rock Creek
*Base on 2012 Data
| Population 1 year and over | 1,424 | 100% |
| Same house | 1,400 | 98.3% |
| Different house in the U.S. | 24 | 1.7% |
| Same county | 24 | 1.7% |
| Different county | 0 | 0.0% |
| Same state | 0 | 0.0% |
| Different state | 0 | 0.0% |
| Abroad | 0 | 0.0% |
Place Of Birth in Rock Creek
*Base on 2012 Data
| Total population | 1,424 | 100% |
| Native | 1,409 | 98.9% |
| Born in United States | 1,336 | 93.8% |
| State of residence | 1,190 | 83.6% |
| Different state | 146 | 10.3% |
| Born in Puerto Rico, U.S. Island areas, or born abroad to American parent(s) | 73 | 5.1% |
| Foreign born | 15 | 1.1% |
U.S. Citizenship Status in Rock Creek
*Base on 2012 Data
| Foreign-born population | 15 | 100% |
| Naturalized U.S. citizen | 0 | 0.0% |
| Not a U.S. citizen | 15 | 100.0% |
Year of Entry in Rock Creek
*Base on 2012 Data
| Population born outside the United States | 88 | 100% |
| Native | 73 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 73 | 100.0% |
| Foreign born | 15 | 100% |
| Entered 2010 or later | 0 | 0.0% |
| Entered before 2010 | 15 | 100.0% |
World Region Of Birth Of Foreign Born in Rock Creek
*Base on 2012 Data
| Foreign-born population, excluding population born at sea | 15 | 100% |
| Europe | 15 | 100.0% |
| Asia | 0 | 0.0% |
| Africa | 0 | 0.0% |
| Oceania | 0 | 0.0% |
| Latin America | 0 | 0.0% |
| Northern America | 0 | 0.0% |