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Where 21865 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 21865 into a pocket calculator and turn it upside down: SgBIZ — not quite a word, sorry.
- ➕ As a number, 21,865 = 5 × 4373. Its digits add up to 22, a total 2,607 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101010101101001 - 🏠 Its numerical neighbours: 21864 (Stockton, MD, 29 mi away) and 21866 (Tylerton, MD, 24 mi away).
- 🔄 Backwards, 21865 becomes 56812, which is not a ZIP code at all.
- 👥 54 other ZIP codes are made of exactly the same digits (12568, 12586, 12856, 12865, 15268, 15286, …). The farthest-flung twin is 85261 in Scottsdale, AZ, 2,033 miles away.
- 🧭 Farther south than 56% of all ZIP codes, and farther east than 85%.
- 🎯1,222 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 21865 and you would come out at 38.28°S, 104.17°E — 791 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 50m of daylight. Shortest: 9h 30m.
- 📏 At 18.4 square miles of land, 21865 is bigger than 36% of ZIP codes — room for about 14 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 320This ZIP320 |
|---|---|
| Households | 139This ZIP139 |
| Housing units | 218This ZIP218 |
| Median age | 67.6This ZIP67.6Maryland39.4US 38.9 |
| Median household income | $83,155This ZIP$83,155Maryland$103,678US $80,734 |
| Median home value | $191,000This ZIP$191,000Maryland$419,900US $332,700 |
| Bachelor's degree or higher | 41.2%This ZIP41.2% |
| Population density | 17.4 / sq miThis ZIP17.4 / sq mi |
Business and tax activity
| Business establishments | 4This ZIP4 |
|---|---|
| Employees | 26This ZIP26 |
| Annual payroll | $1,120,000This ZIP$1,120,000 |
| Tax returns filed | 210This ZIP210 |
| Total adjusted gross income | $16,959,000This ZIP$16,959,000 |
Land area
| Land area | 18.38 sq miThis ZIP18.38 sq mi |
|---|---|
| Water area | 2.59 sq miThis ZIP2.59 sq mi |
Other place names in 21865
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 21865
| ZIP | City | Distance |
|---|---|---|
21856 | Quantico, MD | 3.7 mi |
21814 | Bivalve, MD | 4.0 mi |
21840 | Nanticoke, MD | 4.6 mi |
21810 | Allen, MD | 7.5 mi |
21853 | Princess Anne, MD | 7.9 mi |
21869 | Vienna, MD | 8.7 mi |
21822 | Eden, MD | 9.0 mi |
21801 | Salisbury, MD | 9.3 mi |
21830 | Hebron, MD | 9.4 mi |
21821 | Deal Island, MD | 9.5 mi |
Find every ZIP code within 10 miles of 21865 →
Questions about this ZIP code
Where is ZIP code 21865?
21865 is in Tyaskin, Maryland, in Wicomico County, part of the Salisbury, MD metropolitan area. Its published point location is 38.2828, -75.8270.
What county is 21865 in?
21865 lies in Wicomico County.
What area code is 21865?
Tyaskin uses area codes 410, 443 and 667, from NANPA's telephone records.
What time zone is 21865 in?
21865 uses America/New_York.
How many people live in 21865?
About 320 people live in ZIP code 21865, in 139 households, at 17.4 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 21865?
$83,155 a year, against $103,678 across Maryland.
What ZIP codes are near 21865?
The closest are 21856 (3.7 mi), 21814 (4 mi), 21840 (4.6 mi), 21810 (7.5 mi) and 21853 (7.9 mi).
Is 21865 a PO Box ZIP code?
21865 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “21865 ZIP Code — Tyaskin, Maryland (Wicomico County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21865
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/21865.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.