| City: | Dulles, Virginia |
| Names to Avoid: | Dulles P & D Center |
| County: | Loudoun County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 9:50:29 PM |
| Population: | No Population Data |
| Area Codes: | 571 / 703 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 39.0009, -77.4518 |
| Quick Link: |
The USPS Dulles Processing and Distribution Center operates under dedicated ZIP code 20101 in Loudoun County, Virginia. Located at 44715 Prentice Drive in Sterling, this facility is one of the largest mail processing operations in the Northern Virginia region, serving ZIP code prefixes 201, 226-228, and portions of West Virginia. The P&DC employs over 200 mail handlers and processes mail for communities from Reston to Winchester.
Postal records identify 30 delivery points across 27 distinct operational units within the facility. Internal departments include the Business Mail Entry Unit, Express Mail Dispatch, Quality Improvement, and the Rural Training Academy. The Ashburn Postmaster's office and multiple MDO (Manager of Distribution Operations) tours operate from this location. This long-established designation has served the facility for over two decades. Dulles serves as the valid mailing city.
| Establishments: | 5 |
| Employment: | 10 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 20101 supports both business and residential activity. According to the Business Census (2024), there are 5 business establishments, employing about 15 people with an annual payroll of $940,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 0Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 5Source: CBP |
| 1st Quarter Payroll: | $256,000Source: CBP |
| Annual Payroll: | $940,000Source: CBP |
| # of Employees: | 15Source: CBP |
ZIP Code 20101 is located in Loudoun County, Virginia, within the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area (CBSA 47900) and Virginia's 10th Congressional District. This Metro area has a population of 5,582,170 people, about 0.00% of whom live in ZIP Code 20101, and is subdivided into the Arlington-Alexandria-Reston, VA-WV division. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Washington-Arlington-Alexandria, DC-VA-MD-WVSource: Census |
| CBSA Number: | 47900Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Arlington-Alexandria-Reston, VA-WV (CBSA Div 11694)Source: Census |
| CBSA Population: | 5,582,170Source: Census |
| MSA: | Washington-Baltimore, DC-MD-VA-WV CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 10Source: USPS |
| Congressional Land Area: | 1372.24 sq miSource: Census |
| PMSA: | Washington, DC-MD-VA-WV PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 5123732Source: Census |
| Place Name: | Dulles Town Center CDP; VirginiaSource: Census |
We could not locate which school district 20101 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.