Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/21087

21087

ZIP 21087 is Kingsville, Maryland, mostly in Baltimore County; area codes 410, 443 and 667; Eastern time.

Type
Standard
Time zone
America/New_York
County
Baltimore +1 more
Population
5,537
Coordinates
39.4493, -76.4132
☼ Live from 21087 — Kingsville, MD

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 21087 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 21087
  • 🔢 Type 21087 into a pocket calculator and turn it upside down: LBOIZ — not quite a word, sorry.
  • ➕ As a number, 21,087 = 3 × 3 × 3 × 11 × 71. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101001001011111
  • 🏠 Its numerical neighbours: 21085 (Joppa, MD, 3 mi away) and 21088 (Lineboro, MD, 30 mi away).
  • 🔄 Backwards, 21087 becomes 78012 — and that is a real ZIP code: Christine, TX, 1,455 miles away.
  • 👥 67 other ZIP codes are made of exactly the same digits (01827, 02187, 02718, 02817, 02871, 07821, …). The farthest-flung twin is 87021 in Milan, NM, 1,745 miles away.
  • 🧭 Farther north than 52% of all ZIP codes, and farther east than 84%.
  • 🎯1,177 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21087 and you would come out at 39.45°S, 103.59°E — 860 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 57m of daylight. Shortest: 9h 23m.
  • 📏 At 14.6 square miles of land, 21087 is bigger than 32% of ZIP codes — room for about 11 Central Parks.
🌙 The sky over 21087 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population5,537This ZIP5,537
Households2,151This ZIP2,151
Housing units2,260This ZIP2,260
Median age52.0This ZIP52.0Maryland39.4US 38.9
Median household income$129,188This ZIP$129,188Maryland$103,678US $80,734
Median home value$534,300This ZIP$534,300Maryland$419,900US $332,700
Median gross rent$721This ZIP$721Maryland$1,705US $1,413
Bachelor's degree or higher45.5%This ZIP45.5%
Mean commute28.5 minThis ZIP28.5 min
Population density378.4 / sq miThis ZIP378.4 / sq mi

Business and tax activity

Business establishments122This ZIP122
Employees942This ZIP942
Annual payroll$70,238,000This ZIP$70,238,000
Tax returns filed2,930This ZIP2,930
Total adjusted gross income$371,102,000This ZIP$371,102,000

Land area

Land area14.63 sq miThis ZIP14.63 sq mi
Water area0.14 sq miThis ZIP0.14 sq mi

Counties 21087 spans

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

CountyShare of this ZIP
Baltimore County 90.1%
Harford County 9.9%

Other place names in 21087

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

ZIP codes near 21087

ZIPCityDistance
21156 Upper Falls, MD 1.5 mi
21051 Fork, MD 2.8 mi
21085 Joppa, MD 3.0 mi
21128 Perry Hall, MD 3.6 mi
21082 Hydes, MD 3.8 mi
21162 White Marsh, MD 4.1 mi
21018 Benson, MD 4.4 mi
21057 Glen Arm, MD 5.3 mi
21047 Fallston, MD 5.5 mi
21236 Nottingham, MD 5.7 mi

Find every ZIP code within 10 miles of 21087 →

Questions about this ZIP code

Where is ZIP code 21087?

21087 is in Kingsville, Maryland, in Baltimore County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.4493, -76.4132.

What county is 21087 in?

21087 spans 2 counties: Baltimore County and Harford County. Most of it falls in Baltimore 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 21087?

Kingsville uses area codes 410, 443 and 667, from NANPA's telephone records.

What time zone is 21087 in?

21087 uses America/New_York.

How many people live in 21087?

About 5,537 people live in ZIP code 21087, in 2,151 households, at 378.4 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 21087?

$129,188 a year, against $103,678 across Maryland.

What ZIP codes are near 21087?

The closest are 21156 (1.5 mi), 21051 (2.8 mi), 21085 (3 mi), 21128 (3.6 mi) and 21082 (3.8 mi).

Is 21087 a PO Box ZIP code?

21087 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “21087 ZIP Code — Kingsville, Maryland (Baltimore County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21087

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/21087.json

Underlying data is public domain or openly licensed — sources, vintages and licences.