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Where 21864 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 21864 into a pocket calculator and turn it upside down: hgBIZ — not quite a word, sorry.
- ➕ As a number, 21,864 = 2 × 2 × 2 × 3 × 911. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101010101101000 - 🏠 Its numerical neighbours: 21863 (Snow Hill, MD, 11 mi away) and 21865 (Tyaskin, MD, 29 mi away).
- 🔄 Backwards, 21864 becomes 46812, which is not a ZIP code at all.
- 👥 53 other ZIP codes are made of exactly the same digits (12468, 12486, 12846, 12864, 14826, 16248, …). The farthest-flung twin is 86412 in Hualapai, AZ, 2,122 miles away.
- 🧭 Farther south than 58% of all ZIP codes, and farther east than 86%.
- 🎯1,248 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 21864 and you would come out at 38.03°S, 104.59°E — 763 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 48m of daylight. Shortest: 9h 31m.
- 📏 At 22.7 square miles of land, 21864 is bigger than 40% of ZIP codes — room for about 17 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 606This ZIP606 |
|---|---|
| Households | 275This ZIP275 |
| Housing units | 311This ZIP311 |
| Median age | 49.9This ZIP49.9Maryland39.4US 38.9 |
| Median household income | $82,917This ZIP$82,917Maryland$103,678US $80,734 |
| Median home value | $163,500This ZIP$163,500Maryland$419,900US $332,700 |
| Bachelor's degree or higher | 17.3%This ZIP17.3% |
| Mean commute | 28.6 minThis ZIP28.6 min |
| Population density | 26.7 / sq miThis ZIP26.7 / sq mi |
Business and tax activity
| Business establishments | 8This ZIP8 |
|---|---|
| Employees | 33This ZIP33 |
| Annual payroll | $1,046,000This ZIP$1,046,000 |
| Tax returns filed | 290This ZIP290 |
| Total adjusted gross income | $16,750,000This ZIP$16,750,000 |
Land area
| Land area | 22.71 sq miThis ZIP22.71 sq mi |
|---|---|
| Water area | 2.61 sq miThis ZIP2.61 sq mi |
Other place names in 21864
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 21864
| ZIP | City | Distance |
|---|---|---|
23356 | Greenbackville, VA | 1.9 mi |
23395 | Horntown, VA | 4.9 mi |
21829 | Girdletree, MD | 4.9 mi |
23336 | Chincoteague Island, VA | 6.8 mi |
23337 | Wallops Island, VA | 7.1 mi |
23483 | Wattsville, VA | 8.0 mi |
23415 | New Church, VA | 8.1 mi |
21851 | Pocomoke City, MD | 8.1 mi |
23303 | Atlantic, VA | 10.4 mi |
23416 | Oak Hall, VA | 10.7 mi |
Find every ZIP code within 10 miles of 21864 →
Questions about this ZIP code
Where is ZIP code 21864?
21864 is in Stockton, Maryland, in Worcester County, part of the Ocean Pines, MD micropolitan area. Its published point location is 38.0316, -75.4058.
What county is 21864 in?
21864 lies in Worcester County.
What area code is 21864?
Stockton uses area codes 443, 410 and 667, from NANPA's telephone records.
What time zone is 21864 in?
21864 uses America/New_York.
How many people live in 21864?
About 606 people live in ZIP code 21864, in 275 households, at 26.7 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 21864?
$82,917 a year, against $103,678 across Maryland.
What ZIP codes are near 21864?
The closest are 23356 (1.9 mi), 23395 (4.9 mi), 21829 (4.9 mi), 23336 (6.8 mi) and 23337 (7.1 mi).
Is 21864 a PO Box ZIP code?
21864 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “21864 ZIP Code — Stockton, Maryland (Worcester County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21864
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/21864.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.