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Where 05866 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 05866 into a pocket calculator and turn it upside down: ggBSO — not quite a word, sorry.
- ➕ As a number, 5,866 = 2 × 7 × 419. Its digits add up to 25, a total 2,242 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1011011101010 - 🏠 Its numerical neighbours: 05863 (Saint Johnsbury Center, VT, 14 mi away) and 05867 (Sutton, VT, 4 mi away).
- 🔄 Backwards, 05866 becomes 66850 — and that is a real ZIP code: Elmdale, KS, 1,337 miles away.
- 👥 21 other ZIP codes are made of exactly the same digits (06856, 50668, 56068, 56680, 60568, 60586, …). The farthest-flung twin is 85066 in Phoenix, AZ, 2,253 miles away.
- 🧭 Farther north than 90% of all ZIP codes, and farther east than 94%.
- 🎯1,388 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 05866 and you would come out at 44.64°S, 107.89°E — 976 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 34m of daylight. Shortest: 8h 48m.
- 📏 At 34.7 square miles of land, 05866 is bigger than 49% of ZIP codes — room for about 26 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 684This ZIP684 |
|---|---|
| Households | 289This ZIP289 |
| Housing units | 422This ZIP422 |
| Median age | 45.5This ZIP45.5Vermont43.1US 38.9 |
| Median household income | $64,609This ZIP$64,609Vermont$81,203US $80,734 |
| Median home value | $160,000This ZIP$160,000Vermont$316,600US $332,700 |
| Median gross rent | $992This ZIP$992Vermont$1,234US $1,413 |
| Bachelor's degree or higher | 29.1%This ZIP29.1% |
| Mean commute | 29.7 minThis ZIP29.7 min |
| Population density | 19.7 / sq miThis ZIP19.7 / sq mi |
Business and tax activity
| Business establishments | 3This ZIP3 |
|---|---|
| Employees | 15This ZIP15 |
| Annual payroll | $625,000This ZIP$625,000 |
| Tax returns filed | 360This ZIP360 |
| Total adjusted gross income | $17,619,000This ZIP$17,619,000 |
Land area
| Land area | 34.71 sq miThis ZIP34.71 sq mi |
|---|---|
| Water area | 0.26 sq miThis ZIP0.26 sq mi |
Other place names in 05866
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 05866
| ZIP | City | Distance |
|---|---|---|
05867 | Sutton, VT | 4.0 mi |
05839 | Glover, VT | 5.2 mi |
05850 | Lyndon Center, VT | 6.5 mi |
05851 | Lyndonville, VT | 7.2 mi |
05842 | Greensboro Bend, VT | 7.5 mi |
05822 | Barton, VT | 8.2 mi |
05871 | West Burke, VT | 8.3 mi |
05841 | Greensboro, VT | 8.9 mi |
05875 | Barton, VT | 9.0 mi |
05836 | East Hardwick, VT | 10.3 mi |
Find every ZIP code within 10 miles of 05866 →
Questions about this ZIP code
Where is ZIP code 05866?
05866 is in Sheffield, Vermont, in Caledonia County. Its published point location is 44.6407, -72.1109.
What county is 05866 in?
05866 lies in Caledonia County.
What area code is 05866?
Sheffield uses area code 802, from NANPA's telephone records.
What time zone is 05866 in?
05866 uses America/New_York.
How many people live in 05866?
About 684 people live in ZIP code 05866, in 289 households, at 19.7 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 05866?
$64,609 a year, against $81,203 across Vermont.
What ZIP codes are near 05866?
The closest are 05867 (4 mi), 05839 (5.2 mi), 05850 (6.5 mi), 05851 (7.2 mi) and 05842 (7.5 mi).
Is 05866 a PO Box ZIP code?
05866 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “05866 ZIP Code — Sheffield, Vermont (Caledonia County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/05866
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/05866.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.