Rio is an

unincorporated community 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 Martin County,

Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...

, United States. The population was 980 at the 2020 census. Rio is pronounced locally as if it were spelled "Rye-oh". It is part of the Port St. Lucie Metropolitan Statistical Area.

Government

Rio sits in Martin County District 1, which includes parts of

Stuart Stuart may refer to: People *Stuart (name), a given name and surname (and list of people with the name) * Clan Stuart of Bute, a Scottish clan *House of Stuart, a royal house of Scotland and England Places Australia Generally *Stuart Highway, ...

, Jensen Beach, Hutchinson Island, and Sewall's Point.

History

Rio proper was platted as "Rio St. Lucie", but the post office established on March 24, 1893, was called "Rio San Lucie". On December 1, 1897, the post office name was shortened to "Rio". The Rio post office was discontinued on March 15, 1902, with the area being taken over by the post office at Goslingville, which was located on the narrow peninsula just north of the present-day Roosevelt Bridge. On April 6, 1904, the Rio post office was reactivated and it continued until October 15, 1927, when it was added to the post office at Jensen, now known as Jensen Beach.Bradbury, Alford G., and Hallock, E. Story, ''A Chronology of Florida Post Offices'', reprinted 1993, Port Salerno:Florida Classics Library.

Geography

Rio is located in northeastern Martin County at (27.218419, -80.240037). It sits on the north side of the

St. Lucie River The St. Lucie River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed April 18, 2011 estuary linked to a coastal river system in St. Lucie County, Florida, St. Lucie and Martin County, ...

across from

, the county seat. It is bordered to the north and east by Jensen Beach and to the northwest by part of the Stuart city limits. 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 Rio CDP has a total area of , of which are land and , or 58.19%, are water.

Demographics

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 1,028 people, 495 households, and 283 families residing in the CDP. The population density was . There were 622 housing units at an average density of . The racial makeup of the CDP was 97.96%

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 ...

, 0.49%

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 ...

, 0.10% Native American, 0.39% Asian, 0.10%

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 ...

, 0.29% from other races, and 0.68% 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 1.75% of the population. There were 495 households, out of which 18.4% had children under the age of 18 living with them, 44.4% 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, 7.9% had a female householder with no husband present, and 42.8% were non-families. 34.5% of all households were made up of individuals, and 12.1% had someone living alone who was 65 years of age or older. The average household size was 2.08 and the average family size was 2.65. In the CDP, the population was spread out, with 16.5% under the age of 18, 5.6% from 18 to 24, 22.6% from 25 to 44, 32.3% from 45 to 64, and 23.0% who were 65 years of age or older. The median age was 48 years. For every 100 females, there were 99.6 males. For every 100 females age 18 and over, there were 101.4 males. The median income for a household in the CDP was $45,089, and the median income for a family was $56,125. Males had a median income of $45,337 versus $31,311 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 $27,674. About 7.6% of families and 11.9% 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 17.2% of those under age 18 and 10.7% of those age 65 or over.

References

{{authority control Census-designated places in Martin County, Florida Port St. Lucie metropolitan area Jensen Beach, Florida Census-designated places in Florida 1893 establishments in Florida Populated places established in 1893