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zipcodes.pro — ZIP/20690

20690

ZIP 20690 is Tall Timbers, Maryland, in St. Mary's County; area codes 240, 301 and 227; Eastern time.

Type
Standard
Time zone
America/New_York
County
St. Mary's
Metro area
Lexington Park, MD
Population
1,077
Coordinates
38.1584, -76.5348
☼ Live from 20690 — Tall Timbers, MD

Weather right now

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Local time: —

Where 20690 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 20690
  • 🔢 Type 20690 into a pocket calculator and turn it upside down: OGgOZ — not quite a word, sorry.
  • ➕ As a number, 20,690 = 2 × 5 × 2069. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101000011010010
  • 🏠 Its numerical neighbours: 20689 (Sunderland, MD, 35 mi away) and 20692 (Valley Lee, MD, 2 mi away).
  • 🔄 Backwards, 20690 becomes 09602 — and that is a real ZIP code: APO AE, a military post office, 6,749 miles away.
  • 👥 29 other ZIP codes are made of exactly the same digits (00692, 00926, 00962, 02906, 06029, 06092, …). The farthest-flung twin is 09602 in APO AE, a military post office, 6,749 miles away.
  • 🧭 Farther south than 57% of all ZIP codes, and farther east than 83%.
  • 🎯1,186 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20690 and you would come out at 38.16°S, 103.47°E — 821 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 49m of daylight. Shortest: 9h 30m.
  • 📏 At 1.6 square miles of land, 20690 is bigger than 10% of ZIP codes — room for about 1.2 Central Parks.
🌙 The sky over 20690 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,077This ZIP1,077
Households478This ZIP478
Housing units655This ZIP655
Median age45.7This ZIP45.7Maryland39.4US 38.9
Median household income$122,750This ZIP$122,750Maryland$103,678US $80,734
Median home value$379,700This ZIP$379,700Maryland$419,900US $332,700
Median gross rent$1,412This ZIP$1,412Maryland$1,705US $1,413
Bachelor's degree or higher39.0%This ZIP39.0%
Mean commute39.5 minThis ZIP39.5 min
Population density654.3 / sq miThis ZIP654.3 / sq mi

Business and tax activity

Business establishments6This ZIP6
Employees29This ZIP29
Annual payroll$852,000This ZIP$852,000
Tax returns filed420This ZIP420
Total adjusted gross income$58,032,000This ZIP$58,032,000

Land area

Land area1.65 sq miThis ZIP1.65 sq mi
Water area0.63 sq miThis ZIP0.63 sq mi

Other place names in 20690

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

ZIP codes near 20690

ZIPCityDistance
20674 Piney Point, MD 0.8 mi
20692 Valley Lee, MD 2.4 mi
20630 Drayden, MD 3.9 mi
20620 Callaway, MD 5.2 mi
22442 Coles Point, VA 5.6 mi
20686 Saint Marys City, MD 5.9 mi
20634 Great Mills, MD 6.1 mi
20667 Park Hall, MD 6.1 mi
22577 Sandy Point, VA 6.3 mi
20684 Saint Inigoes, MD 6.6 mi

Find every ZIP code within 10 miles of 20690 →

Questions about this ZIP code

Where is ZIP code 20690?

20690 is in Tall Timbers, Maryland, in St. Mary's County, part of the Lexington Park, MD metropolitan area. Its published point location is 38.1584, -76.5348.

What county is 20690 in?

20690 lies in St. Mary's County.

What area code is 20690?

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

What time zone is 20690 in?

20690 uses America/New_York.

How many people live in 20690?

About 1,077 people live in ZIP code 20690, in 478 households, at 654.3 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 20690?

$122,750 a year, against $103,678 across Maryland.

What ZIP codes are near 20690?

The closest are 20674 (0.8 mi), 20692 (2.4 mi), 20630 (3.9 mi), 20620 (5.2 mi) and 22442 (5.6 mi).

Is 20690 a PO Box ZIP code?

20690 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “20690 ZIP Code — Tall Timbers, Maryland (St. Mary's County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20690

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