68.79% of Fairfax County, Virginia residents were born in the United States, with 26.86% having been born in Virginia. More. ... On an annual basis EDSR produces small-area economic and demographic estimates and forecasts for Fairfax County and conducts special studies and research. Fairfax County, Virginia - Fairfax County Overview. The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44. There are 873,026 adults, (144,212 of whom are seniors) in Fairfax County, Virginia. Demographics, Suite 561. Facebook. The population density of Fairfax County, VA was 2,925 in 2018. The non-English language spoken by the largest group is Spanish, which is spoken by 13.53% of the population. Clear 2 Table. Twitter. Fairfax County, Virginia; Virginia. 14.09% of residents are not US citizens. 1 in 7 Residents Is Age 65 or Older. As of 2019, an estimated 13.4% of Fairfax County residents were 65 or older, and by 2035, this number is projected to grow to 17.7%. CSV. Clear 1 Table. The population density of Fairfax County, VA was 2,925 in 2018. Estimates are not comparable to other geographic levels due to methodology differences that may exist between different data sources. Population of States and Counties of the United States: 1790 - 1990, Native Hawaiian and Other Pacific Islander. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits. QuickFacts provides statistics for all states and counties, and for cities and towns with a population of 5,000 or more. QuickFacts provides statistics for all states and counties, and for cities and towns with a population of 5,000 or more. Of those not born in the United States, the largest percentage are from Asia. Name Status County / City Population Census 1990-04-01 Population Census 2000-04-01 Population Census 2010-04-01 ; Annandale: Census-Designated Place: Fairfax Population Density. Last official estimated population of Fairfax County was 1,086,723 (year 2014) [1]. Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API - Notes: 1. Compare population statistics about Fairfax County, VA by race, age, gender, Latino/Hispanic origin etc. Area of Fairfax County is 406.1 mi² (=1051.7 km²), in this year population density was 2,676.14 p/mi². U.S. Census Bureau American FactFinder Tool Email. Map. Fairfax is currently growing at a rate of 1.31% annually and its population has increased by 11.80% since the most recent census, which recorded a population of 22,565 in 2010. Total occupied homes in Fairfax County with people under 18 years old: Total: 391,627; Population of homes with one or more people under 18 years: Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API - Notes: 1. The race most likely to be in poverty in Fairfax County, Virginia is Islander, with 21.44% below the poverty level. Fairfax County, officially the County of Fairfax is located in the Commonwealth of Virginia in the United States. The race least likely to be in poverty in Fairfax County, Virginia is White, with 4.00% below the poverty level. Print. The poverty rate among those that worked full-time for the past 12 months was 1.04%. 61.15% of Fairfax County, Virginia residents speak only English, while 38.85% speak other languages.