20520
ZIP 20520 is in Washington, District of Columbia; area codes 202 and 771; Eastern time. Washington has 271 ZIP codes in all.
- Type
- Standard
- Time zone
- America/New_York
- County
- District of Columbia
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- Population
- 0
- Coordinates
- 38.8947, -77.0485
Weather right now
Asking the National Weather Service…
Where 20520 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 20520 into a pocket calculator and turn it upside down: OZSOZ — not quite a word, sorry.
- ➕ As a number, 20,520 = 2 × 2 × 2 × 3 × 3 × 3 × 5 × 19. Its digits add up to 9, a total 375 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101000000101000 - 🏠 Its numerical neighbours: 20515 (Washington, DC, 2 mi away) and 20521 (Washington, DC, 2 mi away).
- 🔄 Backwards, 20520 becomes 02502, which is not a ZIP code at all.
- 👥 10 other ZIP codes are made of exactly the same digits (02025, 02052, 02205, 20052, 20250, 20502, …). The farthest-flung twin is 50022 in Atlantic, IA, 962 miles away.
- 🧭 Farther south than 52% of all ZIP codes, and farther east than 81%.
- 🎯1,149 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 20520 and you would come out at 38.89°S, 102.95°E — 870 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
- 📏 At 0.031 square miles of land, 20520 is bigger than 0% of ZIP codes — about 15 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 0 |
|---|---|
| Households | 0 |
| Housing units | 0 |
| Population density | 0.0 / sq mi |
Business and tax activity
| Business establishments | 13This ZIP13 |
|---|---|
| Employees | 248This ZIP248 |
| Annual payroll | $18,925,000This ZIP$18,925,000 |
Land area
| Land area | 0.03 sq miThis ZIP0.03 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 20520
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 20520
| ZIP | City | Distance |
|---|---|---|
20523 | Washington, DC | 0.0 mi |
20522 | Washington, DC | 0.1 mi |
20418 | Washington, DC | 0.1 mi |
20551 | Washington, DC | 0.2 mi |
20245 | Washington, DC | 0.2 mi |
20415 | Washington, DC | 0.2 mi |
20052 | Washington, DC | 0.3 mi |
20451 | Washington, DC | 0.3 mi |
20240 | Washington, DC | 0.3 mi |
20037 | Washington, DC | 0.3 mi |
Find every ZIP code within 10 miles of 20520 →
Questions about this ZIP code
Where is ZIP code 20520?
20520 is in Washington, District of Columbia, in District of Columbia, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 38.8947, -77.0485.
What county is 20520 in?
20520 lies in District of Columbia.
What area code is 20520?
Washington uses area codes 202 and 771, from NANPA's telephone records.
What time zone is 20520 in?
20520 uses America/New_York.
How many people live in 20520?
About 0 people live in ZIP code 20520. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 20520?
The closest are 20523 (0 mi), 20522 (0.1 mi), 20418 (0.1 mi), 20551 (0.2 mi) and 20245 (0.2 mi).
Is 20520 a PO Box ZIP code?
20520 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “20520 ZIP Code — Washington, District of Columbia.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20520
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/20520.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.