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/20601

20601

ZIP 20601 is in Waldorf, Maryland, mostly in Charles County; area codes 240, 301 and 227; Eastern time. Waldorf has 4 ZIP codes; the others are 20602, 20603 and 20604.

Type
Standard
Time zone
America/New_York
County
Charles +1 more
Population
26,945
Coordinates
38.6196, -76.8560
☼ Live from 20601 — Waldorf, MD

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 20601 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 20601
  • 🔢 Type 20601 into a pocket calculator and turn it upside down: IOgOZ — not quite a word, sorry.
  • ➕ As a number, 20,601 = 3 × 3 × 3 × 7 × 109. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101000001111001
  • 🏠 Its numerical neighbours: 20599 (Washington, DC, 21 mi away) and 20602 (Waldorf, MD, 3 mi away).
  • 🔄 Backwards, 20601 becomes 10602 — and that is a real ZIP code: White Plains, NY, 234 miles away.
  • 👥 30 other ZIP codes are made of exactly the same digits (00612, 01026, 01062, 01260, 01602, 02061, …). The farthest-flung twin is 00612 in Arecibo, PR, 1,523 miles away.
  • 🧭 Farther south than 54% of all ZIP codes, and farther east than 82%.
  • 🎯1,163 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20601 and you would come out at 38.62°S, 103.14°E — 851 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 52m of daylight. Shortest: 9h 28m.
  • 📏 At 47.8 square miles of land, 20601 is bigger than 58% of ZIP codes — room for about 36 Central Parks.
🌙 The sky over 20601 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population26,945This ZIP26,945
Households10,069This ZIP10,069
Housing units10,468This ZIP10,468
Median age37.4This ZIP37.4Maryland39.4US 38.9
Median household income$117,480This ZIP$117,480Maryland$103,678US $80,734
Median home value$402,100This ZIP$402,100Maryland$419,900US $332,700
Median gross rent$2,208This ZIP$2,208Maryland$1,705US $1,413
Bachelor's degree or higher33.0%This ZIP33.0%
Mean commute43.1 minThis ZIP43.1 min
Population density563.4 / sq miThis ZIP563.4 / sq mi

Business and tax activity

Business establishments541This ZIP541
Employees7,209This ZIP7,209
Annual payroll$327,543,000This ZIP$327,543,000
Tax returns filed14,320This ZIP14,320
Total adjusted gross income$1,105,483,000This ZIP$1,105,483,000

Land area

Land area47.83 sq miThis ZIP47.83 sq mi
Water area0.15 sq miThis ZIP0.15 sq mi

Counties 20601 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Charles County 83.9%
Prince George's County 16.1%

Other place names in 20601

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

ZIP codes near 20601

ZIPCityDistance
20602 Waldorf, MD 3.3 mi
20613 Brandywine, MD 4.5 mi
20617 Bryantown, MD 5.2 mi
20603 Waldorf, MD 6.5 mi
20695 White Plains, MD 7.0 mi
20623 Cheltenham, MD 8.5 mi
20637 Hughesville, MD 8.5 mi
20608 Aquasco, MD 8.8 mi
20675 Pomfret, MD 9.0 mi
20588 Dhs, MD 9.0 mi

Find every ZIP code within 10 miles of 20601 →

Questions about this ZIP code

Where is ZIP code 20601?

20601 is in Waldorf, Maryland, in Charles County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 38.6196, -76.8560.

What county is 20601 in?

20601 spans 2 counties: Charles County and Prince George's County. Most of it falls in Charles County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 20601?

Waldorf uses area codes 240, 301 and 227, from NANPA's telephone records.

What time zone is 20601 in?

20601 uses America/New_York.

How many people live in 20601?

About 26,945 people live in ZIP code 20601, in 10,069 households, at 563.4 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 20601?

$117,480 a year, against $103,678 across Maryland.

What ZIP codes are near 20601?

The closest are 20602 (3.3 mi), 20613 (4.5 mi), 20617 (5.2 mi), 20603 (6.5 mi) and 20695 (7 mi).

Is 20601 a PO Box ZIP code?

20601 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “20601 ZIP Code — Waldorf, Maryland (Charles County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20601

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/20601.json

Underlying data is public domain or openly licensed — sources, vintages and licences.