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zipcodes.pro — ZIP/20639

20639

ZIP 20639 is Huntingtown, Maryland, in Calvert County; area codes 443, 410 and 667; Eastern time.

Type
Standard
Time zone
America/New_York
County
Calvert
Metro area
Lexington Park, MD
Population
15,544
Coordinates
38.6012, -76.6055
☼ Live from 20639 — Huntingtown, MD

Weather right now

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Local time: —

Where 20639 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 20639
  • 🔢 Type 20639 into a pocket calculator and turn it upside down: GEgOZ — not quite a word, sorry.
  • ➕ 20639 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101000010011111
  • 🏠 Its numerical neighbours: 20637 (Hughesville, MD, 10 mi away) and 20640 (Indian Head, MD, 33 mi away).
  • 🔄 Backwards, 20639 becomes 93602 — and that is a real ZIP code: Auberry, CA, 2,316 miles away.
  • 👥 49 other ZIP codes are made of exactly the same digits (02639, 03269, 06239, 09263, 20693, 23069, …). The farthest-flung twin is 96203 in APO AA, a military post office, 6,967 miles away.
  • 🧭 Farther south than 54% of all ZIP codes, and farther east than 83%.
  • 🎯1,176 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20639 and you would come out at 38.60°S, 103.39°E — 839 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 52m of daylight. Shortest: 9h 28m.
  • 📏 At 41.6 square miles of land, 20639 is bigger than 54% of ZIP codes — room for about 32 Central Parks.
🌙 The sky over 20639 today
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🌋 Shake report
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Source: USGS.

People and housing

Population15,544This ZIP15,544
Households4,898This ZIP4,898
Housing units5,144This ZIP5,144
Median age41.3This ZIP41.3Maryland39.4US 38.9
Median household income$161,422This ZIP$161,422Maryland$103,678US $80,734
Median home value$555,100This ZIP$555,100Maryland$419,900US $332,700
Median gross rent$1,512This ZIP$1,512Maryland$1,705US $1,413
Bachelor's degree or higher38.0%This ZIP38.0%
Mean commute41.0 minThis ZIP41.0 min
Population density373.7 / sq miThis ZIP373.7 / sq mi

Business and tax activity

Business establishments226This ZIP226
Employees1,576This ZIP1,576
Annual payroll$92,294,000This ZIP$92,294,000
Tax returns filed7,680This ZIP7,680
Total adjusted gross income$917,006,000This ZIP$917,006,000

Land area

Land area41.60 sq miThis ZIP41.60 sq mi
Water area1.93 sq miThis ZIP1.93 sq mi

Other place names in 20639

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

ZIP codes near 20639

ZIPCityDistance
20689 Sunderland, MD 4.9 mi
20732 Chesapeake Beach, MD 5.0 mi
20610 Barstow, MD 5.3 mi
20678 Prince Frederick, MD 5.3 mi
20608 Aquasco, MD 5.3 mi
20736 Owings, MD 6.2 mi
20612 Benedict, MD 7.5 mi
20714 North Beach, MD 8.1 mi
20676 Port Republic, MD 8.5 mi
20758 Friendship, MD 9.2 mi

Find every ZIP code within 10 miles of 20639 →

Questions about this ZIP code

Where is ZIP code 20639?

20639 is in Huntingtown, Maryland, in Calvert County, part of the Lexington Park, MD metropolitan area. Its published point location is 38.6012, -76.6055.

What county is 20639 in?

20639 lies in Calvert County.

What area code is 20639?

Huntingtown uses area codes 443, 410 and 667, from NANPA's telephone records.

What time zone is 20639 in?

20639 uses America/New_York.

How many people live in 20639?

About 15,544 people live in ZIP code 20639, in 4,898 households, at 373.7 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 20639?

$161,422 a year, against $103,678 across Maryland.

What ZIP codes are near 20639?

The closest are 20689 (4.9 mi), 20732 (5 mi), 20610 (5.3 mi), 20678 (5.3 mi) and 20608 (5.3 mi).

Is 20639 a PO Box ZIP code?

20639 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “20639 ZIP Code — Huntingtown, Maryland (Calvert County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20639

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