2,854 Population. The county was named in honor of General Francis Marion (ca. 1732–1795), known to history as "The Swamp Fox". Marion County, West Virginia. There are 30,100 male residents living in Marion County and 31,023 female residents. The ACS adheres to definitions of race and ethnicity set forth by the 1997 Office of Management and Budget (OMB) standards. Area of Marion County is 311.5 mi² (=806.8 km²), in this year population density was 181.43 p/mi². QuickFacts provides statistics for all states and counties, and for cities and towns with a population of 5,000 or more. Email. Marion County is a county in the U.S. state of West Virginia.As of the 2010 census, the population was 56,418. Demography information of Census Tract 021400 in Marion County, West Virginia, including total population, population growth, and population density. Greenbrier County, WV 1910 Census Images hosted by USGenWeb Census Project; Mingo County 1910 Federal Census hosted by USGenWeb Census Project. More. Find data for this place. CSV. Census data: ACS 2019 5-year unless noted. Races, gender, age, citizenship, language, marital status distribution as well as education level are also included. Profiles for 100 cities, towns and other populated places in Marion County West Virginia. How is Marion County's population distributed by race? Census data for Marion County, WV (pop. Print. 1920 West Virginia Census Records. The total number of households is 24,482 with 2 people per household on average.The median age of the current population is 41 with 26,629 people being married and 24,863 being single. Last official estimated population of Marion County was 56,518 (year 2014) [1]. This was 0.018% of total US population and 3.1% of total West Virginia state population. This chart shows the proportion of each racial group as a percentage of the total population. Incorporated Places have an asterisk (*). miles Land Area: 308.74 sq. 56,497), including age, race, sex, income, poverty, marital status, education and more. Population: 56,577 Area: 311.52 sq. Marion County is an area in West Virginia with a population of 61,123. Index A-C; Index D-H; Index I-M; Index N-S; Index T-Y; Partial; See Census Images Online for ALL Counties! Map. miles Water Area: 2.78 sq. Between 2017 and 2018 the population of Marion County, WV declined from 56,575 to 56,497, a -0.138% decrease and its median household income grew from $48,158 to $48,605, a 0.928% increase. Total population of MARION County, WV: 56,418: Male population of MARION County, WV: 27,546: Female population of MARION County, WV: 28,872: Median age (years) miles Population Density: 181.61 people per sq. 1.7 square miles 1,718.2 people per square mile. Population of Marion County. Chart. Dashboard. Census Tract 211, Marion, WV. Incorporated Cities, Towns & Census Designated Places in Marion County. In 2018, Marion County, WV had a population of 56.5k people with a median age of 41.2 and a median household income of $48,605. Its county seat is Fairmont. Clear 1 Table. People QuickFacts Marion County West Virginia; Population, 2005 estimate : 56,509: 1,816,856: Population, percent change, April 1, 2000 to July 1, 2005