Korean Population in Fairfax County, VA by City : 2025 Ranking & Insights

The Korean population in Fairfax County, VA totals 46,438 residents, according to the most recent census estimates. Of these, Vienna and Herndon account for 491 and 187 residents respectively, suggesting a shared urban presence. However, the remaining population appears to reside outside city boundaries, likely spread across unincorporated parts of Fairfax County or smaller incorporated cities not captured in this ranking analysis*. The analysis below explores this hybrid distribution and how it reflects broader trends across Virginia counties.

Top 5 cities with the largest Korean population in Fairfax County

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  • 1
    Vienna
    Korean population in Vienna is 491
    3.00% of Vienna population is Korean
  • 2
    Herndon
    Korean population in Herndon is 187
    0.76% of Herndon population is Korean

Overview of Korean population in Fairfax County

  • Population Count and Percentage: American Community Survey data shows Fairfax County contains 46,438 Korean residents (4.1% of 1.1 million total county population), ranking the jurisdiction at the 99th percentile nationally among counties and 99th percentile within Virginia for Korean demographic concentrations across both absolute and proportional measures.
  • Comparison to State and National Averages: Census Bureau's ACS show Fairfax County's Korean population of 4.1% surpassing both Virginia's state average of 1.1% and the national average of 0.6%, positioning the county as a high-concentration jurisdiction exceeding demographic benchmarks across all geographic scales.
  • Share of Total State Population: Official American Community Survey document Fairfax County's 46,438 Korean residents representing 49.3% of Virginia's total Korean population of 94,234.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey data shows Fairfax County maintains 118.8 Korean Americans per square mile, representing forty-nine and three-quarters times Virginia's average of 2.4 per square mile, establishing the county as an exceptional concentration center comparable to major metropolitan demographic areas.
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Fairfax County Cities by Korean Population

View Methodology
ACS [1] population records show Vienna and Herndon account for 491 and 187 Korean residents. The following table shows comprehensive population data, demographic percentages, density measurements, and complete comparison metrics for both cities in Fairfax County, VA.
cities in Fairfax County, VA ranked by Korean population count
Rank by Korean Population
City
Korean Population
% of Total City Population
% of Total Fairfax County Korean Population
5 Year Rank Trend
1 Vienna 491 3.00% 1.06%
2 Herndon 187 0.76% 0.40%
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Methodology

This ranking list is based on data from the American Community Survey (ACS) 5-Year Estimates, conducted by the U.S. Census Bureau. The ACS is one of the most reliable sources for understanding population trends across different locations, and it provides estimates for various racial and ethnic groups at city, county, state and all geography levels down to the Census block group.
This list ranks city in Fairfax County, VA by their Korean population, using the most recent ACS data available.

How the Census defines Korean population

The U.S. Census Bureau allows people to self-identify their ancestry, meaning individuals can write upto ancestries when responding to the survey. In this ranking, we include everyone who identifies as having Korean ancestry, whether alone or in combination with another ancestry.
Here are a few important things to know about how ancestry is reported:
  • Some people identify as Korean alone, while others identify as Korean along with another race (such as Korean and German).
  • We’ve used the “Korean alone or in any combination” category unless noted otherwise, which gives a broader picture of the Korean population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Korean alone or in combination in city. To provide additional context, we’ve also included two key percentages:
  1. % of Total City Population – This shows what percentage of the total state population identifies as Korean .
  2. % of Total Fairfax County Korean Population – This tells us how much of the entire U.S. Korean population lives in that state.
To keep things simple, all population numbers have been rounded to the nearest whole number, and percentages are rounded to one decimal place. Because of rounding, some percentages may not add up to exactly 100%.

Things to Keep in Mind

Like all survey-based data, ACS estimates come with some limitations. Here are a few things to be aware of:
  • In places with very small Korean populations, the numbers may not be reported at all due to privacy protections or sampling variability in the survey.
  • Since the ACS is based on a sample, the numbers are estimates, not exact counts. That means they may slightly differ from other sources like the decennial U.S. Census.
  • City that don’t have any reported Korean population are not included in the ranking but are listed separately below for reference.
This ranking is meant to provide a clear, data-driven look at where Korean populations are most concentrated while keeping the numbers easy to understand.

Sources

  1. 2019-2023 5-Year Estimates.
  2. 2023.