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