13421
ZIP 13421 is Oneida, New York, mostly in Madison County; area codes 315 and 680; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Madison +1 more
- Metro area
- Syracuse, NY
- Population
- 12,771
- Coordinates
- 43.0619, -75.6601
Weather right now
Asking the National Weather Service…
Where 13421 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 13421 into a pocket calculator and turn it upside down: IZhEI — not quite a word, sorry.
- ➕ 13421 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 11, a total 714 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11010001101101 - 🏠 Its numerical neighbours: 13420 (Old Forge, NY, 52 mi away) and 13424 (Oriskany, NY, 16 mi away).
- 🔄 Backwards, 13421 becomes 12431 — and that is a real ZIP code: Freehold, NY, 96 miles away.
- 👥 31 other ZIP codes are made of exactly the same digits (11234, 11243, 11423, 11432, 12134, 12143, …). The farthest-flung twin is 34112 in Naples, FL, 1,220 miles away.
- 🧭 Farther north than 83% of all ZIP codes, and farther east than 86%.
- 🎯1,204 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 13421 and you would come out at 43.06°S, 104.34°E — 992 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
- 📏 At 40.1 square miles of land, 13421 is bigger than 53% of ZIP codes — room for about 30 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 12,771This ZIP12,771 |
|---|---|
| Households | 5,712This ZIP5,712 |
| Housing units | 6,076This ZIP6,076 |
| Median age | 46.1This ZIP46.1New York39.8US 38.9 |
| Median household income | $65,752This ZIP$65,752New York$85,974US $80,734 |
| Median home value | $162,000This ZIP$162,000New York$423,800US $332,700 |
| Median gross rent | $904This ZIP$904New York$1,621US $1,413 |
| Bachelor's degree or higher | 26.5%This ZIP26.5% |
| Mean commute | 19.9 minThis ZIP19.9 min |
| Population density | 318.4 / sq miThis ZIP318.4 / sq mi |
Business and tax activity
| Business establishments | 334This ZIP334 |
|---|---|
| Employees | 4,725This ZIP4,725 |
| Annual payroll | $227,318,000This ZIP$227,318,000 |
| Tax returns filed | 6,240This ZIP6,240 |
| Total adjusted gross income | $447,576,000This ZIP$447,576,000 |
Land area
| Land area | 40.11 sq miThis ZIP40.11 sq mi |
|---|---|
| Water area | 0.08 sq miThis ZIP0.08 sq mi |
Counties 13421 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Madison County | 75.9% |
| Oneida County | 24.1% |
Other place names in 13421
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 13421
| ZIP | City | Distance |
|---|---|---|
13163 | Wampsville, NY | 2.6 mi |
13461 | Sherrill, NY | 3.2 mi |
13043 | Clockville, NY | 4.3 mi |
13032 | Canastota, NY | 5.5 mi |
13134 | Peterboro, NY | 6.6 mi |
13409 | Munnsville, NY | 6.9 mi |
13478 | Verona, NY | 6.9 mi |
13054 | Durhamville, NY | 7.4 mi |
13477 | Vernon Center, NY | 7.6 mi |
13476 | Vernon, NY | 7.8 mi |
Find every ZIP code within 10 miles of 13421 →
Questions about this ZIP code
Where is ZIP code 13421?
13421 is in Oneida, New York, in Madison County, part of the Syracuse, NY metropolitan area. Its published point location is 43.0619, -75.6601.
What county is 13421 in?
13421 spans 2 counties: Madison County and Oneida County. Most of it falls in Madison 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 13421?
Oneida uses area codes 315 and 680, from NANPA's telephone records.
What time zone is 13421 in?
13421 uses America/New_York.
How many people live in 13421?
About 12,771 people live in ZIP code 13421, in 5,712 households, at 318.4 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 13421?
$65,752 a year, against $85,974 across New York.
What ZIP codes are near 13421?
The closest are 13163 (2.6 mi), 13461 (3.2 mi), 13043 (4.3 mi), 13032 (5.5 mi) and 13134 (6.6 mi).
Is 13421 a PO Box ZIP code?
13421 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “13421 ZIP Code — Oneida, New York (Madison County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/13421
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/13421.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.