21229
ZIP 21229 is in Baltimore, Maryland, mostly in Baltimore City; area codes 410, 443 and 667; Eastern time. Baltimore has 42 ZIP codes in all.
- Type
- Standard
- Time zone
- America/New_York
- County
- Baltimore city +1 more
- Metro area
- Baltimore-Columbia-Towson, MD
- Population
- 46,679
- Coordinates
- 39.2842, -76.6914
Weather right now
Asking the National Weather Service…
Where 21229 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 21229 into a pocket calculator and turn it upside down: GZZIZ — not quite a word, sorry.
- ➕ As a number, 21,229 = 13 × 23 × 71. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101001011101101 - 🏠 Its numerical neighbours: 21228 (Catonsville, MD, 3 mi away) and 21230 (Baltimore, MD, 4 mi away).
- 🔄 Backwards, 21229 becomes 92212, which is not a ZIP code at all.
- 👥 10 other ZIP codes are made of exactly the same digits (12229, 12922, 21922, 22192, 22219, 29122, …). The farthest-flung twin is 91222 in Glendale, CA, 2,309 miles away.
- 🧭 Farther north than 51% of all ZIP codes, and farther east than 83%.
- 🎯1,164 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 21229 and you would come out at 39.28°S, 103.31°E — 867 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 56m of daylight. Shortest: 9h 24m.
- 📏 At 5.9 square miles of land, 21229 is bigger than 21% of ZIP codes — room for about 4.5 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 46,679This ZIP46,679 |
|---|---|
| Households | 19,262This ZIP19,262 |
| Housing units | 21,006This ZIP21,006 |
| Median age | 37.5This ZIP37.5Maryland39.4US 38.9 |
| Median household income | $60,047This ZIP$60,047Maryland$103,678US $80,734 |
| Median home value | $201,300This ZIP$201,300Maryland$419,900US $332,700 |
| Median gross rent | $1,297This ZIP$1,297Maryland$1,705US $1,413 |
| Bachelor's degree or higher | 23.9%This ZIP23.9% |
| Mean commute | 31.6 minThis ZIP31.6 min |
| Population density | 7,863.7 / sq miThis ZIP7,863.7 / sq mi |
Business and tax activity
| Business establishments | 419This ZIP419 |
|---|---|
| Employees | 6,019This ZIP6,019 |
| Annual payroll | $399,776,000This ZIP$399,776,000 |
| Tax returns filed | 19,820This ZIP19,820 |
| Total adjusted gross income | $968,487,000This ZIP$968,487,000 |
Land area
| Land area | 5.94 sq miThis ZIP5.94 sq mi |
|---|---|
| Water area | 0.01 sq miThis ZIP0.01 sq mi |
Counties 21229 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Baltimore city | 85.6% |
| Baltimore County | 14.4% |
Other place names in 21229
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 21229
| ZIP | City | Distance |
|---|---|---|
21223 | Baltimore, MD | 2.0 mi |
21216 | Baltimore, MD | 2.1 mi |
21250 | Baltimore, MD | 2.2 mi |
21228 | Catonsville, MD | 3.1 mi |
21227 | Halethorpe, MD | 3.1 mi |
21207 | Gwynn Oak, MD | 3.1 mi |
21217 | Baltimore, MD | 3.2 mi |
21230 | Baltimore, MD | 3.6 mi |
21290 | Baltimore, MD | 3.7 mi |
21201 | Baltimore, MD | 3.8 mi |
Find every ZIP code within 10 miles of 21229 →
Questions about this ZIP code
Where is ZIP code 21229?
21229 is in Baltimore, Maryland, in Baltimore city, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.2842, -76.6914.
What county is 21229 in?
21229 spans 2 counties: Baltimore city and Baltimore County. Most of it falls in Baltimore city, 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 21229?
Baltimore uses area codes 410, 443 and 667, from NANPA's telephone records.
What time zone is 21229 in?
21229 uses America/New_York.
How many people live in 21229?
About 46,679 people live in ZIP code 21229, in 19,262 households, at 7,863.7 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 21229?
$60,047 a year, against $103,678 across Maryland.
What ZIP codes are near 21229?
The closest are 21223 (2 mi), 21216 (2.1 mi), 21250 (2.2 mi), 21228 (3.1 mi) and 21227 (3.1 mi).
Is 21229 a PO Box ZIP code?
21229 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “21229 ZIP Code — Baltimore, Maryland (Baltimore City).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21229
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/21229.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.