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Where 05821 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 05821 into a pocket calculator and turn it upside down: IZBSO — not quite a word, sorry.
- ➕ 05821 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1011010111101 - 🏠 Its numerical neighbours: 05820 (Albany, VT, 33 mi away) and 05822 (Barton, VT, 30 mi away).
- 🔄 Backwards, 05821 becomes 12850 — and that is a real ZIP code: Middle Grove, NY, 126 miles away.
- 👥 65 other ZIP codes are made of exactly the same digits (01258, 01825, 01852, 02185, 02815, 08215, …). The farthest-flung twin is 85012 in Phoenix, AZ, 2,249 miles away.
- 🧭 Farther north than 88% of all ZIP codes, and farther east than 94%.
- 🎯1,386 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 05821 and you would come out at 44.32°S, 107.89°E — 957 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 32m of daylight. Shortest: 8h 51m.
- 📏 At 31.3 square miles of land, 05821 is bigger than 47% of ZIP codes — room for about 24 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,109This ZIP1,109 |
|---|---|
| Households | 428This ZIP428 |
| Housing units | 659This ZIP659 |
| Median age | 49.4This ZIP49.4Vermont43.1US 38.9 |
| Median household income | $65,682This ZIP$65,682Vermont$81,203US $80,734 |
| Median home value | $260,800This ZIP$260,800Vermont$316,600US $332,700 |
| Median gross rent | $1,050This ZIP$1,050Vermont$1,234US $1,413 |
| Bachelor's degree or higher | 48.9%This ZIP48.9% |
| Mean commute | 29.4 minThis ZIP29.4 min |
| Population density | 35.4 / sq miThis ZIP35.4 / sq mi |
Business and tax activity
| Business establishments | 21This ZIP21 |
|---|---|
| Employees | 115This ZIP115 |
| Annual payroll | $5,292,000This ZIP$5,292,000 |
| Tax returns filed | 580This ZIP580 |
| Total adjusted gross income | $44,544,000This ZIP$44,544,000 |
Land area
| Land area | 31.34 sq miThis ZIP31.34 sq mi |
|---|---|
| Water area | 0.75 sq miThis ZIP0.75 sq mi |
Other place names in 05821
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 05821
| ZIP | City | Distance |
|---|---|---|
05050 | Mc Indoe Falls, VT | 4.4 mi |
05042 | East Ryegate, VT | 5.2 mi |
05862 | Peacham, VT | 5.3 mi |
05861 | Passumpsic, VT | 5.7 mi |
03771 | Monroe, NH | 6.5 mi |
05873 | West Danville, VT | 8.0 mi |
05828 | Danville, VT | 8.2 mi |
05819 | Saint Johnsbury, VT | 8.6 mi |
05046 | Groton, VT | 9.5 mi |
05848 | Lower Waterford, VT | 10.3 mi |
Find every ZIP code within 10 miles of 05821 →
Questions about this ZIP code
Where is ZIP code 05821?
05821 is in Barnet, Vermont, in Caledonia County. Its published point location is 44.3188, -72.1089.
What county is 05821 in?
05821 lies in Caledonia County.
What area code is 05821?
Barnet uses area code 802, from NANPA's telephone records.
What time zone is 05821 in?
05821 uses America/New_York.
How many people live in 05821?
About 1,109 people live in ZIP code 05821, in 428 households, at 35.4 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 05821?
$65,682 a year, against $81,203 across Vermont.
What ZIP codes are near 05821?
The closest are 05050 (4.4 mi), 05042 (5.2 mi), 05862 (5.3 mi), 05861 (5.7 mi) and 03771 (6.5 mi).
Is 05821 a PO Box ZIP code?
05821 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “05821 ZIP Code — Barnet, Vermont (Caledonia County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/05821
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/05821.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.