What is the population of Loudoun County, VA?
Loudoun County in Virginia has a population of 427,082, per Census ACS 5-Year estimates. The median household income is $178,707 and the median age is 37.8.
Context
Counties are the primary administrative subdivisions of states and a stable unit for tracking population. Loudoun County's population reflects everyone within county lines, including residents of incorporated cities and unincorporated areas.
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Loudoun County in Virginia has a population of 427,082, per Census ACS 5-Year estimates. The median household income is $178,707 and the median age is 37.8.