12121
ZIP 12121 is Melrose, New York, in Rensselaer County; area codes 518 and 838; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Rensselaer
- Metro area
- Albany-Schenectady-Troy, NY
- Population
- 2,280
- Coordinates
- 42.8399, -73.6074
Weather right now
Asking the National Weather Service…
Where 12121 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 12121 into a pocket calculator and turn it upside down: IZIZI — not quite a word, sorry.
- ⇆12121 reads the same backwards. It is one of only 412 palindromic ZIP codes.
- ➕ As a number, 12,121 = 17 × 23 × 31. Its digits add up to 7, a total 150 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10111101011001 - 🏠 Its numerical neighbours: 12120 (Medusa, NY, 37 mi away) and 12122 (Middleburgh, NY, 42 mi away).
- 👥 4 other ZIP codes are made of exactly the same digits (11212, 11221, 12211, 21211). The farthest-flung twin is 21211 in Baltimore, MD, 289 miles away.
- 🧭 Farther north than 81% of all ZIP codes, and farther east than 92%.
- 🎯1,307 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 12121 and you would come out at 42.84°S, 106.39°E — 913 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 21m of daylight. Shortest: 9h 01m.
- 📏 At 19.3 square miles of land, 12121 is bigger than 37% of ZIP codes — room for about 15 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 2,280This ZIP2,280 |
|---|---|
| Households | 801This ZIP801 |
| Housing units | 907This ZIP907 |
| Median age | 49.0This ZIP49.0New York39.8US 38.9 |
| Median household income | $100,461This ZIP$100,461New York$85,974US $80,734 |
| Median home value | $297,400This ZIP$297,400New York$423,800US $332,700 |
| Bachelor's degree or higher | 19.2%This ZIP19.2% |
| Mean commute | 22.6 minThis ZIP22.6 min |
| Population density | 118.2 / sq miThis ZIP118.2 / sq mi |
Business and tax activity
| Business establishments | 22This ZIP22 |
|---|---|
| Employees | 81This ZIP81 |
| Annual payroll | $5,669,000This ZIP$5,669,000 |
| Tax returns filed | 950This ZIP950 |
| Total adjusted gross income | $80,826,000This ZIP$80,826,000 |
Land area
| Land area | 19.29 sq miThis ZIP19.29 sq mi |
|---|---|
| Water area | 1.09 sq miThis ZIP1.09 sq mi |
ZIP codes near 12121
| ZIP | City | Distance |
|---|---|---|
12182 | Troy, NY | 2.9 mi |
12185 | Valley Falls, NY | 3.1 mi |
12188 | Waterford, NY | 4.6 mi |
12180 | Troy, NY | 6.3 mi |
12154 | Schaghticoke, NY | 6.7 mi |
12094 | Johnsonville, NY | 7.1 mi |
12047 | Cohoes, NY | 7.2 mi |
12183 | Troy, NY | 7.7 mi |
12181 | Troy, NY | 7.8 mi |
12118 | Mechanicville, NY | 7.9 mi |
Find every ZIP code within 10 miles of 12121 →
Questions about this ZIP code
Where is ZIP code 12121?
12121 is in Melrose, New York, in Rensselaer County, part of the Albany-Schenectady-Troy, NY metropolitan area. Its published point location is 42.8399, -73.6074.
What county is 12121 in?
12121 lies in Rensselaer County.
What area code is 12121?
Melrose uses area codes 518 and 838, from NANPA's telephone records.
What time zone is 12121 in?
12121 uses America/New_York.
How many people live in 12121?
About 2,280 people live in ZIP code 12121, in 801 households, at 118.2 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 12121?
$100,461 a year, against $85,974 across New York.
What ZIP codes are near 12121?
The closest are 12182 (2.9 mi), 12185 (3.1 mi), 12188 (4.6 mi), 12180 (6.3 mi) and 12154 (6.7 mi).
Is 12121 a PO Box ZIP code?
12121 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “12121 ZIP Code — Melrose, New York (Rensselaer County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/12121
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/12121.json Underlying data is public domain or openly licensed — sources, vintages and licences.