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Where 20629 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 20629 into a pocket calculator and turn it upside down: GZgOZ — not quite a word, sorry.
- ➕ As a number, 20,629 = 7 × 7 × 421. Its digits add up to 19, a total 2,454 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101000010010101 - 🏠 Its numerical neighbours: 20628 (Dameron, MD, 15 mi away) and 20630 (Drayden, MD, 13 mi away).
- 🔄 Backwards, 20629 becomes 92602 — and that is a real ZIP code: Irvine, CA, 2,309 miles away.
- 👥 30 other ZIP codes are made of exactly the same digits (02269, 06922, 09226, 09262, 09622, 20692, …). The farthest-flung twin is 96220 in APO AA, a military post office, 7,264 miles away.
- 🧭 Farther south than 56% of all ZIP codes, and farther east than 83%.
- 🎯1,188 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 20629 and you would come out at 38.34°S, 103.54°E — 823 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 50m of daylight. Shortest: 9h 29m.
- 📏 At 0.839 square miles of land, 20629 is bigger than 7% of ZIP codes — about 406 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,150This ZIP1,150 |
|---|---|
| Households | 548This ZIP548 |
| Housing units | 655This ZIP655 |
| Median age | 58.1This ZIP58.1Maryland39.4US 38.9 |
| Median household income | $87,389This ZIP$87,389Maryland$103,678US $80,734 |
| Median home value | $403,100This ZIP$403,100Maryland$419,900US $332,700 |
| Bachelor's degree or higher | 41.0%This ZIP41.0% |
| Mean commute | 28.6 minThis ZIP28.6 min |
| Population density | 1,370.7 / sq miThis ZIP1,370.7 / sq mi |
Business and tax activity
| Business establishments | 10This ZIP10 |
|---|---|
| Employees | 116This ZIP116 |
| Annual payroll | $4,946,000This ZIP$4,946,000 |
Land area
| Land area | 0.84 sq miThis ZIP0.84 sq mi |
|---|---|
| Water area | 0.17 sq miThis ZIP0.17 sq mi |
Other place names in 20629
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 20629
| ZIP | City | Distance |
|---|---|---|
20688 | Solomons, MD | 1.2 mi |
20657 | Lusby, MD | 2.9 mi |
20670 | Patuxent River, MD | 4.9 mi |
20619 | California, MD | 5.3 mi |
20636 | Hollywood, MD | 6.0 mi |
20615 | Broomes Island, MD | 6.8 mi |
20685 | Saint Leonard, MD | 7.4 mi |
20634 | Great Mills, MD | 7.4 mi |
20653 | Lexington Park, MD | 7.5 mi |
20620 | Callaway, MD | 8.5 mi |
Find every ZIP code within 10 miles of 20629 →
Questions about this ZIP code
Where is ZIP code 20629?
20629 is in Dowell, Maryland, in Calvert County, part of the Lexington Park, MD metropolitan area. Its published point location is 38.3441, -76.4560.
What county is 20629 in?
20629 lies in Calvert County.
What area code is 20629?
Dowell uses area codes 410, 667 and 443, from NANPA's telephone records.
What time zone is 20629 in?
20629 uses America/New_York.
How many people live in 20629?
About 1,150 people live in ZIP code 20629, in 548 households, at 1,370.7 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 20629?
$87,389 a year, against $103,678 across Maryland.
What ZIP codes are near 20629?
The closest are 20688 (1.2 mi), 20657 (2.9 mi), 20670 (4.9 mi), 20619 (5.3 mi) and 20636 (6 mi).
Is 20629 a PO Box ZIP code?
20629 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “20629 ZIP Code — Dowell, Maryland (Calvert County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20629
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/20629.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.