20542
ZIP 20542 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
- 38.9414, -77.0280
Weather right now
Asking the National Weather Service…
Where 20542 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 20542 into a pocket calculator and turn it upside down: ZhSOZ — not quite a word, sorry.
- ➕ As a number, 20,542 = 2 × 10271. Its digits add up to 13, a total 1,179 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101000000111110 - 🏠 Its numerical neighbours: 20541 (Washington, DC, 4 mi away) and 20543 (Washington, DC, 3 mi away).
- 🔄 Backwards, 20542 becomes 24502 — and that is a real ZIP code: Lynchburg, VA, 162 miles away.
- 👥 34 other ZIP codes are made of exactly the same digits (02452, 02542, 04225, 04252, 20245, 20254, …). The farthest-flung twin is 54022 in River Falls, WI, 897 miles away.
- 🧭 Farther south than 51% of all ZIP codes, and farther east than 81%.
- 🎯1,150 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 20542 and you would come out at 38.94°S, 102.97°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 0.013 square miles of land, 20542 is bigger than 0% of ZIP codes — about 6 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 |
Land area
| Land area | 0.01 sq miThis ZIP0.01 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 20542
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 20542
| ZIP | City | Distance |
|---|---|---|
20022 | Washington, DC | 0.5 mi |
20010 | Washington, DC | 0.6 mi |
20011 | Washington, DC | 0.8 mi |
20317 | Washington, DC | 0.9 mi |
20441 | Washington, DC | 1.3 mi |
20422 | Washington, DC | 1.4 mi |
20059 | Washington, DC | 1.4 mi |
20064 | Washington, DC | 1.6 mi |
20009 | Washington, DC | 1.6 mi |
20060 | Washington, DC | 1.7 mi |
Find every ZIP code within 10 miles of 20542 →
Questions about this ZIP code
Where is ZIP code 20542?
20542 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 38.9414, -77.0280.
What county is 20542 in?
20542 lies in District of Columbia.
What area code is 20542?
Washington uses area codes 202 and 771, from NANPA's telephone records.
What time zone is 20542 in?
20542 uses America/New_York.
How many people live in 20542?
About 0 people live in ZIP code 20542. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 20542?
The closest are 20022 (0.5 mi), 20010 (0.6 mi), 20011 (0.8 mi), 20317 (0.9 mi) and 20441 (1.3 mi).
Is 20542 a PO Box ZIP code?
20542 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “20542 ZIP Code — Washington, District of Columbia.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20542
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/20542.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.