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zipcodes.pro — ZIP/21651

21651

ZIP 21651 is Millington, Maryland, mostly in Kent County; area codes 667 and 410; Eastern time.

Type
Standard
Time zone
America/New_York
County
Kent +1 more
Metro area
none
Population
2,290
Coordinates
39.2561, -75.8584
☼ Live from 21651 — Millington, MD

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Local time: —

Where 21651 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.

★ Weird and wonderful facts about 21651
  • 🔢 Type 21651 into a pocket calculator and turn it upside down: ISgIZ — not quite a word, sorry.
  • ➕ As a number, 21,651 = 3 × 7 × 1031. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010010010011
  • 🏠 Its numerical neighbours: 21650 (Massey, MD, 5 mi away) and 21652 (Neavitt, MD, 44 mi away).
  • 🔄 Backwards, 21651 becomes 15612 — and that is a real ZIP code: Alverton, PA, 208 miles away.
  • 👥 23 other ZIP codes are made of exactly the same digits (11256, 12156, 12165, 12516, 12561, 15126, …). The farthest-flung twin is 56211 in Beardsley, MN, 1,145 miles away.
  • 🧭 Farther north than 51% of all ZIP codes, and farther east than 85%.
  • 🎯1,208 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21651 and you would come out at 39.26°S, 104.14°E — 828 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 56m of daylight. Shortest: 9h 24m.
  • 📏 At 40.6 square miles of land, 21651 is bigger than 54% of ZIP codes — room for about 31 Central Parks.
🌙 The sky over 21651 today
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🌋 Shake report
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Source: USGS.

People and housing

Population2,290This ZIP2,290
Households884This ZIP884
Housing units1,012This ZIP1,012
Median age34.4This ZIP34.4Maryland39.4US 38.9
Median household income$74,063This ZIP$74,063Maryland$103,678US $80,734
Median home value$326,800This ZIP$326,800Maryland$419,900US $332,700
Median gross rent$1,429This ZIP$1,429Maryland$1,705US $1,413
Bachelor's degree or higher18.0%This ZIP18.0%
Mean commute33.8 minThis ZIP33.8 min
Population density56.4 / sq miThis ZIP56.4 / sq mi

Business and tax activity

Business establishments41This ZIP41
Employees400This ZIP400
Annual payroll$18,906,000This ZIP$18,906,000
Tax returns filed1,330This ZIP1,330
Total adjusted gross income$87,484,000This ZIP$87,484,000

Land area

Land area40.57 sq miThis ZIP40.57 sq mi
Water area0.97 sq miThis ZIP0.97 sq mi

Counties 21651 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Kent County 70.6%
Queen Anne's County 29.4%

Other place names in 21651

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 21651

ZIPCityDistance
21628 Crumpton, MD 3.8 mi
21668 Sudlersville, MD 4.5 mi
21650 Massey, MD 4.6 mi
21635 Galena, MD 5.5 mi
21645 Kennedyville, MD 6.7 mi
21930 Georgetown, MD 8.0 mi
21607 Barclay, MD 8.4 mi
19938 Clayton, DE 8.5 mi
21649 Marydel, MD 8.6 mi
21644 Ingleside, MD 9.6 mi

Find every ZIP code within 10 miles of 21651 →

Questions about this ZIP code

Where is ZIP code 21651?

21651 is in Millington, Maryland, in Kent County. Its published point location is 39.2561, -75.8584.

What county is 21651 in?

21651 spans 2 counties: Kent County and Queen Anne's County. Most of it falls in Kent 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 21651?

Millington uses area codes 667 and 410, from NANPA's telephone records.

What time zone is 21651 in?

21651 uses America/New_York.

How many people live in 21651?

About 2,290 people live in ZIP code 21651, in 884 households, at 56.4 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 21651?

$74,063 a year, against $103,678 across Maryland.

What ZIP codes are near 21651?

The closest are 21628 (3.8 mi), 21668 (4.5 mi), 21650 (4.6 mi), 21635 (5.5 mi) and 21645 (6.7 mi).

Is 21651 a PO Box ZIP code?

21651 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21651 ZIP Code — Millington, Maryland (Kent County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21651

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/21651.json

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