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Where 21074 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 21074 into a pocket calculator and turn it upside down: hLOIZ — not quite a word, sorry.
- ➕ As a number, 21,074 = 2 × 41 × 257. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101001001010010 - 🏠 Its numerical neighbours: 21071 (Glyndon, MD, 10 mi away) and 21075 (Elkridge, MD, 29 mi away).
- 🔄 Backwards, 21074 becomes 47012 — and that is a real ZIP code: Brookville, IN, 434 miles away.
- 👥 66 other ZIP codes are made of exactly the same digits (01247, 01472, 01742, 02471, 02714, 02741, …). The farthest-flung twin is 74102 in Tulsa, OK, 1,069 miles away.
- 🧭 Farther north than 53% of all ZIP codes, and farther east than 82%.
- 🎯1,153 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 21074 and you would come out at 39.62°S, 103.16°E — 886 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 58m of daylight. Shortest: 9h 22m.
- 📏 At 37.7 square miles of land, 21074 is bigger than 52% of ZIP codes — room for about 29 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 14,777This ZIP14,777 |
|---|---|
| Households | 5,889This ZIP5,889 |
| Housing units | 6,054This ZIP6,054 |
| Median age | 42.9This ZIP42.9Maryland39.4US 38.9 |
| Median household income | $108,536This ZIP$108,536Maryland$103,678US $80,734 |
| Median home value | $378,100This ZIP$378,100Maryland$419,900US $332,700 |
| Median gross rent | $1,260This ZIP$1,260Maryland$1,705US $1,413 |
| Bachelor's degree or higher | 36.3%This ZIP36.3% |
| Mean commute | 32.4 minThis ZIP32.4 min |
| Population density | 392.1 / sq miThis ZIP392.1 / sq mi |
Business and tax activity
| Business establishments | 354This ZIP354 |
|---|---|
| Employees | 4,164This ZIP4,164 |
| Annual payroll | $198,917,000This ZIP$198,917,000 |
| Tax returns filed | 7,930This ZIP7,930 |
| Total adjusted gross income | $727,032,000This ZIP$727,032,000 |
Land area
| Land area | 37.69 sq miThis ZIP37.69 sq mi |
|---|---|
| Water area | 0.88 sq miThis ZIP0.88 sq mi |
Counties 21074 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Carroll County | 72.0% |
| Baltimore County | 28.0% |
Other place names in 21074
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 21074
| ZIP | City | Distance |
|---|---|---|
21155 | Upperco, MD | 3.8 mi |
21102 | Manchester, MD | 4.9 mi |
21088 | Lineboro, MD | 6.7 mi |
21020 | Boring, MD | 7.2 mi |
21053 | Freeland, MD | 8.4 mi |
21023 | Butler, MD | 8.6 mi |
21120 | Parkton, MD | 8.9 mi |
21157 | Westminster, MD | 9.2 mi |
21152 | Sparks Glencoe, MD | 9.4 mi |
17329 | Glenville, PA | 9.5 mi |
Find every ZIP code within 10 miles of 21074 →
Questions about this ZIP code
Where is ZIP code 21074?
21074 is in Hampstead, Maryland, in Carroll County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.6216, -76.8399.
What county is 21074 in?
21074 spans 2 counties: Carroll County and Baltimore County. Most of it falls in Carroll 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 21074?
Hampstead uses area codes 443, 667 and 410, from NANPA's telephone records.
What time zone is 21074 in?
21074 uses America/New_York.
How many people live in 21074?
About 14,777 people live in ZIP code 21074, in 5,889 households, at 392.1 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 21074?
$108,536 a year, against $103,678 across Maryland.
What ZIP codes are near 21074?
The closest are 21155 (3.8 mi), 21102 (4.9 mi), 21088 (6.7 mi), 21020 (7.2 mi) and 21053 (8.4 mi).
Is 21074 a PO Box ZIP code?
21074 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “21074 ZIP Code — Hampstead, Maryland (Carroll County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21074
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/21074.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.