Green Valley is an

unincorporated area An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as th ...

and

census-designated place A census-designated place (CDP) is a Place (United States Census Bureau), concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counte ...

(CDP) in southern Frederick County,

Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It borders the states of Virginia to its south, West Virginia to its west, Pennsylvania to its north, and Delaware to its east ...

, United States. The population was 12,643 at the 2020 census. The area was listed as a census-designated place in 2000 but not listed as part of any CDP at the 2010 census. It was re-designated a census-designated place for the 2020 census.

Geography

The Green Valley area is located in southeastern Frederick County at (39.341801, −77.240437), bordered to the south and east by Montgomery County. The northern edge of the CDP extends from Mount Airy in the northeast to New Market in the northwest. The unincorporated community of

Monrovia Monrovia () is the administrative capital city, capital and largest city of Liberia. Founded in 1822, it is located on Cape Mesurado on the Atlantic Ocean, Atlantic coast and as of the 2022 census had 1,761,032 residents, home to 33.5% of Liber ...

is located just to the west. According to the

United States Census Bureau The United States Census Bureau, officially the Bureau of the Census, is a principal agency of the Federal statistical system, U.S. federal statistical system, responsible for producing data about the American people and American economy, econ ...

, the Green Valley CDP had a total area of , all land.

Demographics

Green Valley was first listed as a

census designated place A census-designated place (CDP) is a Place (United States Census Bureau), concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counte ...

in the

1980 U.S. Census The 1980 United States census, conducted by the United States Census Bureau, Census Bureau, determined the resident population of the United States to be 226,545,805, an increase of 11.4% over the 203,184,772 persons Enumeration, enumerated dur ...

. It was deleted prior to the 2010 U.S. Census with portions used to form the Monrovia CDP; and was relisted as a

in the 2020 U.S. Census.

2020 census

2000 Census

As of the

census A census (from Latin ''censere'', 'to assess') is the procedure of systematically acquiring, recording, and calculating population information about the members of a given Statistical population, population, usually displayed in the form of stati ...

of 2000, there were 12,262 people, 3,882 households, and 3,470 families residing in the CDP. The population density was . There were 3,928 housing units at an average density of . The racial makeup of the CDP was 95.91%

White White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...

, 1.24%

African American African Americans, also known as Black Americans and formerly also called Afro-Americans, are an Race and ethnicity in the United States, American racial and ethnic group that consists of Americans who have total or partial ancestry from an ...

, 0.23% Native American, 0.99% Asian, 0.04%

Pacific Islander Pacific Islanders, Pasifika, Pasefika, Pacificans, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe th ...

, 0.38% from other races, and 1.22% from two or more races.

Hispanic The term Hispanic () are people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or broadly. In some contexts, Hispanic and Latino Americans, especially within the United States, "Hispanic" is used as an Ethnici ...

or Latino of any race were 1.69% of the population. There were 3,882 households, out of which 49.1% had children under the age of 18 living with them, 81.7% were

married couples Marriage, also called matrimony or wedlock, is a culturally and often legally recognised union between people called spouses. It establishes rights and obligations between them, as well as between them and their children (if any), and b ...

living together, 4.6% had a female householder with no husband present, and 10.6% were non-families. 7.8% of all households were made up of individuals, and 2.8% had someone living alone who was 65 years of age or older. The average household size was 3.16 and the average family size was 3.33. In the CDP, the population was spread out, with 31.2% under the age of 18, 5.6% from 18 to 24, 30.0% from 25 to 44, 27.5% from 45 to 64, and 5.7% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 102.6 males. For every 100 females age 18 and over, there were 100.6 males. The median income for a household in the CDP was $81,732, and the median income for a family was $84,607. Males had a median income of $53,482 versus $37,726 for females. The

per capita income Per capita income (PCI) or average income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year. In many countries, per capita income is determined using regular population surveys, such ...

for the CDP was $29,408. About 1.9% of families and 2.1% of the population were below the

poverty line The poverty threshold, poverty limit, poverty line, or breadline is the minimum level of income deemed adequate in a particular country. The poverty line is usually calculated by estimating the total cost of one year's worth of necessities for ...

, including 1.4% of those under age 18 and 0.4% of those age 65 or over.

References

{{DCMetroArea Census-designated places in Maryland Census-designated places in Frederick County, Maryland