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ZIP code

20101

Dulles, VA

UNIQUE

20101 is a unique for Dulles in Loudoun County. Census ACS does not publish a population for this code. IRS last reported 87 people in 2007.

Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology

IRS 2007 population

87

IRS Statistics of Income 2007. Geography: ZCTA 20101. Methodology

About ZIP code 20101

Type

UNIQUE

City

Dulles

Timezone

America/New_York

Area codes

571

IRS households (2007)

78

More enterprise fields

Timezone
America/New_York
Area Codes
571
World Region
NA
Country
US

Commercial ZIP directory · not ACS

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 20101. Methodology

People in 20101

Census fields are empty for this ZIP.

Income and housing in 20101

ACS does not publish income or housing figures for this ZIP.

Places covering 20101

Cities and places — Population overlap

Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

No place overlap rows for this ZIP.

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Counties — Population overlap

Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.

No county overlap rows for this ZIP.

ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Population history for 20101

IRS population
9447020072007

Hover the chart or read the table below (Year | ACS | IRS).

Population history. Year | ACS population | IRS population. ACS and IRS are separate series. Blank cells mean that source did not publish a count for the year.
YearACS populationIRS population
200787

ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.

ZIP codes near 20101

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ZIP centroids within 2 miles

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ZIP code 20101 FAQ

What city is ZIP code 20101 in?
20101 is in Dulles, VA.
What county is 20101 in?
20101 is in Loudoun County.
What is the median household income in 20101?
Median household income is not published for 20101.
Which ZIP codes are near 20101?
Use the radius tool on this page to list ZIP codes within a chosen distance of 20101.