20101 ZIP Code
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ZIP code 20101 covers Dulles, Virginia. It has no Census ZIP Code Tabulation Area, which is how the Census Bureau treats ZIP codes that are not residential neighbourhoods — PO box-only ranges, military addresses, and codes assigned to a single large organisation. There are no population or income figures for it because nobody is counted as living there.
- Time zone
- Eastern UTC-05:00observes daylight saving time
- Businesses
- 5
Where 20101 is
Dulles, Virginia — the point the Postal Service gives for this ZIP code. A ZIP code is a set of delivery routes rather than an area, so this marks its centre, not its boundary.
Business and employment
Census ZIP Code Business Patterns 2022
| Business establishments | 5 |
|---|---|
| People employed | 10 |
| Annual payroll | $881,000 |
Climate
NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.
| Weather station | WFO STERLING, VA US4.8 km away |
|---|---|
| Rain in a year | 45 in |
Average high and low by month
| January | 41.9°F / 24.9°F3.12 in rain |
|---|---|
| February | 45.3°F / 26.1°F2.63 in rain |
| March | 53.8°F / 33.1°F3.79 in rain |
| April | 66°F / 43°F3.45 in rain |
| May | 74.3°F / 53.3°F4.92 in rain |
| June | 82.7°F / 62.5°F4.61 in rain |
| July | 87.2°F / 67.3°F4.06 in rain |
| August | 85.9°F / 65.5°F3.65 in rain |
| September | 79.2°F / 57.9°F4.13 in rain |
| October | 67.7°F / 45.4°F4.04 in rain |
| November | 56°F / 35.2°F3.21 in rain |
| December | 46.1°F / 28.6°F3.48 in rain |
Nearby ZIP codes
The closest ZIP codes by centre point, which is not the same as sharing a border.
| 20189 Dulles, VA | 0.8 km away |
|---|---|
| 20103 Dulles, VA | 0.9 km away |
| 20163 Sterling, VA | 1.3 km away |
| 20167 Sterling, VA | 1.3 km away |
| 20598 Dhs, VA | 1.4 km away |
| 20166 Sterling, VA | 3.5 km away |
| 20164 Sterling, VA | 4.4 km away |
| 20147 Ashburn, VA | 5.1 km away |
Location, counties and time zone
County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.
| Time zone | Eastern (UTC-05:00 standard) |
|---|---|
| Daylight saving time | Observed |
| Latitude, longitude | 39.0021, -77.4421 |
Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.