Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/20317

20317

ZIP 20317 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
Population
15
Coordinates
38.9348, -77.0144
☼ Live from 20317 — Washington, DC

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Where 20317 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.

★ Weird and wonderful facts about 20317
  • 🔢 Type 20317 into a pocket calculator and turn it upside down: LIEOZ — not quite a word, sorry.
  • ➕ As a number, 20,317 = 11 × 1847. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100111101011101
  • 🏠 Its numerical neighbours: 20314 (Washington, DC, 3 mi away) and 20318 (Washington, DC, 3 mi away).
  • 🔄 Backwards, 20317 becomes 71302 — and that is a real ZIP code: Alexandria, LA, 1,018 miles away.
  • 👥 63 other ZIP codes are made of exactly the same digits (01237, 02137, 02713, 03217, 10273, 12037, …). The farthest-flung twin is 73021 in Colony, OK, 1,216 miles away.
  • 🧭 Farther south than 51% of all ZIP codes, and farther east than 82%.
  • 🎯1,151 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20317 and you would come out at 38.93°S, 102.99°E — 869 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
  • 📏 At 0.350 square miles of land, 20317 is bigger than 4% of ZIP codes — about 169 football fields.
🌙 The sky over 20317 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population15This ZIP15
Households15This ZIP15
Housing units15This ZIP15
Bachelor's degree or higher100.0%This ZIP100.0%
Population density42.9 / sq miThis ZIP42.9 / sq mi

Land area

Land area0.35 sq miThis ZIP0.35 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

Other place names in 20317

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 20317

ZIPCityDistance
20422 Washington, DC 0.6 mi
20064 Washington, DC 0.8 mi
20542 Washington, DC 0.9 mi
20059 Washington, DC 0.9 mi
20010 Washington, DC 0.9 mi
20017 Washington, DC 1.2 mi
20060 Washington, DC 1.2 mi
20011 Washington, DC 1.3 mi
20022 Washington, DC 1.4 mi
20441 Washington, DC 1.4 mi

Find every ZIP code within 10 miles of 20317 →

Questions about this ZIP code

Where is ZIP code 20317?

20317 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 38.9348, -77.0144.

What county is 20317 in?

20317 lies in District of Columbia.

What area code is 20317?

Washington uses area codes 202 and 771, from NANPA's telephone records.

What time zone is 20317 in?

20317 uses America/New_York.

How many people live in 20317?

About 15 people live in ZIP code 20317, in 15 households, at 42.9 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 20317?

The closest are 20422 (0.6 mi), 20064 (0.8 mi), 20542 (0.9 mi), 20059 (0.9 mi) and 20010 (0.9 mi).

Is 20317 a PO Box ZIP code?

20317 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “20317 ZIP Code — Washington, District of Columbia.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20317

Machine-readable version of these facts:

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