12821
ZIP 12821 is Comstock, New York, in Washington County; area codes 518 and 838; Eastern time.
- Type
- Standard
- Time zone
- America/New_York
- County
- Washington
- Metro area
- Glens Falls, NY
- Population
- 2,124
- Coordinates
- 43.4540, -73.4234
Weather right now
Asking the National Weather Service…
Where 12821 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 12821 into a pocket calculator and turn it upside down: IZBZI — not quite a word, sorry.
- ⇆12821 reads the same backwards. It is one of only 412 palindromic ZIP codes.
- ➕ 12821 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11001000010101 - 🏠 Its numerical neighbours: 12820 (Cleverdale, NY, 11 mi away) and 12822 (Corinth, NY, 30 mi away).
- 👥 18 other ZIP codes are made of exactly the same digits (11228, 12128, 12182, 12812, 18212, 18221, …). The farthest-flung twin is 81122 in Bayfield, CO, 1,831 miles away.
- 🧭 Farther north than 85% of all ZIP codes, and farther east than 92%.
- 🎯1,318 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 12821 and you would come out at 43.45°S, 106.58°E — 942 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 25m of daylight. Shortest: 8h 57m.
- 📏 At 5.6 square miles of land, 12821 is bigger than 20% of ZIP codes — room for about 4.2 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 2,124This ZIP2,124 |
|---|---|
| Households | 102This ZIP102 |
| Housing units | 102This ZIP102 |
| Median age | 39.7This ZIP39.7New York39.8US 38.9 |
| Median home value | $212,500This ZIP$212,500New York$423,800US $332,700 |
| Median gross rent | $856This ZIP$856New York$1,621US $1,413 |
| Bachelor's degree or higher | 3.2%This ZIP3.2% |
| Mean commute | 25.7 minThis ZIP25.7 min |
| Population density | 380.4 / sq miThis ZIP380.4 / sq mi |
Business and tax activity
| Business establishments | 3This ZIP3 |
|---|---|
| Employees | 45This ZIP45 |
| Annual payroll | $2,092,000This ZIP$2,092,000 |
| Tax returns filed | 150This ZIP150 |
| Total adjusted gross income | $8,735,000This ZIP$8,735,000 |
Land area
| Land area | 5.58 sq miThis ZIP5.58 sq mi |
|---|---|
| Water area | 0.11 sq miThis ZIP0.11 sq mi |
ZIP codes near 12821
| ZIP | City | Distance |
|---|---|---|
12854 | North Granville, NY | 4.8 mi |
12827 | Fort Ann, NY | 5.5 mi |
12849 | Middle Granville, NY | 6.2 mi |
12887 | Whitehall, NY | 6.4 mi |
12832 | Granville, NY | 8.1 mi |
12837 | Hampton, NY | 8.6 mi |
12838 | Hartford, NY | 8.6 mi |
12839 | Hudson Falls, NY | 9.5 mi |
12841 | Huletts Landing, NY | 9.5 mi |
12819 | Clemons, NY | 9.7 mi |
Find every ZIP code within 10 miles of 12821 →
Questions about this ZIP code
Where is ZIP code 12821?
12821 is in Comstock, New York, in Washington County, part of the Glens Falls, NY metropolitan area. Its published point location is 43.4540, -73.4234.
What county is 12821 in?
12821 lies in Washington County.
What area code is 12821?
Comstock uses area codes 518 and 838, from NANPA's telephone records.
What time zone is 12821 in?
12821 uses America/New_York.
How many people live in 12821?
About 2,124 people live in ZIP code 12821, in 102 households, at 380.4 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 12821?
The closest are 12854 (4.8 mi), 12827 (5.5 mi), 12849 (6.2 mi), 12887 (6.4 mi) and 12832 (8.1 mi).
Is 12821 a PO Box ZIP code?
12821 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “12821 ZIP Code — Comstock, New York (Washington County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/12821
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/12821.json Underlying data is public domain or openly licensed — sources, vintages and licences.