Irwin 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 ...

in northern Barton County,

Missouri Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...

, United States. As of the 2020 census it had a population of 47.

History

Irwin was

plat In the United States, a plat ( or ) (plan) is a cadastral map, drawn to scale, showing the divisions of a piece of land. United States General Land Office surveyors drafted township plats of Public Lands Survey System, Public Lands Surveys to ...

ted in 1884. The community has the name of the Irwin family of settlers. A post office called Irwin was established in 1884, and remained in operation until 1981.

Geography

Irwin is located halfway between Lamar and Sheldon on

U.S. Route 71 U.S. Route 71 or U.S. Highway 71 (US 71) is a major north–south United States highway that extends for over 1500 miles (2500 km) in the central United States. This original 1926 route has remained largely unchanged by encroaching Intersta ...

(

Interstate 49 Interstate 49 (I-49) is a north–south Interstate Highway with multiple segments. The original portion is entirely within Louisiana with an additional signed portion extending from Interstate 220 (Louisiana), I-220 in Shreveport, Louisian ...

). 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 CDP has a total area of , of which , or 2.00%, is water.

Demographics

References

Census-designated places in Missouri Unincorporated communities in Barton County, Missouri Unincorporated communities in Missouri Census-designated places in Barton County, Missouri {{BartonCountyMO-geo-stub