21718
ZIP 21718 is Burkittsville, Maryland, in Frederick County; area codes 240, 227 and 301; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Frederick
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- Population
- 134
- Coordinates
- 39.3935, -77.6278
Weather right now
Asking the National Weather Service…
Where 21718 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 21718 into a pocket calculator and turn it upside down: BILIZ — not quite a word, sorry.
- ➕ As a number, 21,718 = 2 × 10859. Its digits add up to 19, a total 2,454 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101010011010110 - 🏠 Its numerical neighbours: 21717 (Buckeystown, MD, 11 mi away) and 21719 (Cascade, MD, 23 mi away).
- 🔄 Backwards, 21718 becomes 81712, which is not a ZIP code at all.
- 👥 25 other ZIP codes are made of exactly the same digits (11782, 12187, 12781, 12817, 12871, 17128, …). The farthest-flung twin is 87121 in Albuquerque, NM, 1,631 miles away.
- 🧭 Farther north than 52% of all ZIP codes, and farther east than 79%.
- 🎯1,113 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 21718 and you would come out at 39.39°S, 102.37°E — 914 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 57m of daylight. Shortest: 9h 23m.
- 📏 At 0.332 square miles of land, 21718 is bigger than 4% of ZIP codes — about 161 football fields.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 134This ZIP134 |
|---|---|
| Households | 64This ZIP64 |
| Housing units | 70This ZIP70 |
| Median age | 57.6This ZIP57.6Maryland39.4US 38.9 |
| Median household income | $93,500This ZIP$93,500Maryland$103,678US $80,734 |
| Median home value | $576,400This ZIP$576,400Maryland$419,900US $332,700 |
| Median gross rent | $1,021This ZIP$1,021Maryland$1,705US $1,413 |
| Bachelor's degree or higher | 50.5%This ZIP50.5% |
| Mean commute | 41.6 minThis ZIP41.6 min |
| Population density | 403.6 / sq miThis ZIP403.6 / sq mi |
Land area
| Land area | 0.33 sq miThis ZIP0.33 sq mi |
|---|---|
| Water area | 0.00 sq miThis ZIP0.00 sq mi |
Other place names in 21718
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 21718
| ZIP | City | Distance |
|---|---|---|
21715 | Brownsville, MD | 2.0 mi |
21779 | Rohrersville, MD | 2.6 mi |
21758 | Knoxville, MD | 3.2 mi |
21755 | Jefferson, MD | 4.0 mi |
21769 | Middletown, MD | 4.6 mi |
21716 | Brunswick, MD | 5.2 mi |
21756 | Keedysville, MD | 5.8 mi |
21714 | Braddock Heights, MD | 6.4 mi |
21782 | Sharpsburg, MD | 8.3 mi |
21703 | Frederick, MD | 8.4 mi |
Find every ZIP code within 10 miles of 21718 →
Questions about this ZIP code
Where is ZIP code 21718?
21718 is in Burkittsville, Maryland, in Frederick County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 39.3935, -77.6278.
What county is 21718 in?
21718 lies in Frederick County.
What area code is 21718?
Burkittsville uses area codes 240, 227 and 301, from NANPA's telephone records.
What time zone is 21718 in?
21718 uses America/New_York.
How many people live in 21718?
About 134 people live in ZIP code 21718, in 64 households, at 403.6 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 21718?
$93,500 a year, against $103,678 across Maryland.
What ZIP codes are near 21718?
The closest are 21715 (2 mi), 21779 (2.6 mi), 21758 (3.2 mi), 21755 (4 mi) and 21769 (4.6 mi).
Is 21718 a PO Box ZIP code?
21718 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “21718 ZIP Code — Burkittsville, Maryland (Frederick County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21718
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/21718.json Underlying data is public domain or openly licensed — sources, vintages and licences.