21632
ZIP 21632 is Federalsburg, Maryland, mostly in Caroline County; area codes 667, 410 and 443; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Caroline +1 more
- Metro area
- none
- Population
- 6,436
- Coordinates
- 38.7314, -75.7724
Weather right now
Asking the National Weather Service…
Where 21632 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 21632 into a pocket calculator and turn it upside down: ZEgIZ — not quite a word, sorry.
- ➕ As a number, 21,632 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 13. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101010010000000 - 🏠 Its numerical neighbours: 21631 (East New Market, MD, 14 mi away) and 21634 (Fishing Creek, MD, 38 mi away).
- 🔄 Backwards, 21632 becomes 23612 — and that is a real ZIP code: Newport News, VA, 114 miles away.
- 👥 25 other ZIP codes are made of exactly the same digits (12236, 13622, 16223, 16232, 16322, 21236, …). The farthest-flung twin is 62321 in Carthage, IL, 823 miles away.
- 🧭 Farther south than 53% of all ZIP codes, and farther east than 85%.
- 🎯1,219 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 21632 and you would come out at 38.73°S, 104.23°E — 805 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 53m of daylight. Shortest: 9h 27m.
- 📏 At 77.8 square miles of land, 21632 is bigger than 72% of ZIP codes — room for about 59 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 6,436This ZIP6,436 |
|---|---|
| Households | 2,656This ZIP2,656 |
| Housing units | 2,956This ZIP2,956 |
| Median age | 41.9This ZIP41.9Maryland39.4US 38.9 |
| Median household income | $61,316This ZIP$61,316Maryland$103,678US $80,734 |
| Median home value | $216,000This ZIP$216,000Maryland$419,900US $332,700 |
| Median gross rent | $1,031This ZIP$1,031Maryland$1,705US $1,413 |
| Bachelor's degree or higher | 11.9%This ZIP11.9% |
| Mean commute | 30.3 minThis ZIP30.3 min |
| Population density | 82.7 / sq miThis ZIP82.7 / sq mi |
Business and tax activity
| Business establishments | 119This ZIP119 |
|---|---|
| Employees | 2,362This ZIP2,362 |
| Annual payroll | $136,788,000This ZIP$136,788,000 |
| Tax returns filed | 2,990This ZIP2,990 |
| Total adjusted gross income | $152,806,000This ZIP$152,806,000 |
Land area
| Land area | 77.82 sq miThis ZIP77.82 sq mi |
|---|---|
| Water area | 0.51 sq miThis ZIP0.51 sq mi |
Counties 21632 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Caroline County | 79.8% |
| Dorchester County | 20.2% |
Other place names in 21632
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 21632
| ZIP | City | Distance |
|---|---|---|
21655 | Preston, MD | 7.6 mi |
21643 | Hurlock, MD | 7.9 mi |
19933 | Bridgeville, DE | 9.1 mi |
21629 | Denton, MD | 9.2 mi |
21609 | Bethlehem, MD | 10.1 mi |
19973 | Seaford, DE | 10.5 mi |
21659 | Rhodesdale, MD | 10.9 mi |
19950 | Greenwood, DE | 11.2 mi |
21664 | Secretary, MD | 12.7 mi |
21631 | East New Market, MD | 13.7 mi |
Find every ZIP code within 10 miles of 21632 →
Questions about this ZIP code
Where is ZIP code 21632?
21632 is in Federalsburg, Maryland, in Caroline County. Its published point location is 38.7314, -75.7724.
What county is 21632 in?
21632 spans 2 counties: Caroline County and Dorchester County. Most of it falls in Caroline 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 21632?
Federalsburg uses area codes 667, 410 and 443, from NANPA's telephone records.
What time zone is 21632 in?
21632 uses America/New_York.
How many people live in 21632?
About 6,436 people live in ZIP code 21632, in 2,656 households, at 82.7 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 21632?
$61,316 a year, against $103,678 across Maryland.
What ZIP codes are near 21632?
The closest are 21655 (7.6 mi), 21643 (7.9 mi), 19933 (9.1 mi), 21629 (9.2 mi) and 21609 (10.1 mi).
Is 21632 a PO Box ZIP code?
21632 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “21632 ZIP Code — Federalsburg, Maryland (Caroline County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21632
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/21632.json Underlying data is public domain or openly licensed — sources, vintages and licences.