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Where 27840 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 27840 into a pocket calculator and turn it upside down: OhBLZ — not quite a word, sorry.
- ➕ As a number, 27,840 = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 29. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
110110011000000 - 🏠 Its numerical neighbours: 27839 (Halifax, NC, 30 mi away) and 27841 (Hassell, NC, 3 mi away).
- 🔄 Backwards, 27840 becomes 04872, which is not a ZIP code at all.
- 👥 57 other ZIP codes are made of exactly the same digits (02478, 02748, 02874, 04287, 07428, 07842, …). The farthest-flung twin is 84720 in Cedar City, UT, 1,987 miles away.
- 🧭 Farther south than 70% of all ZIP codes, and farther east than 80%.
- 🎯1,191 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 27840 and you would come out at 35.93°S, 102.76°E — 799 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 36m of daylight. Shortest: 9h 43m.
- 📏 At 5.5 square miles of land, 27840 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 | 306This ZIP306 |
|---|---|
| Households | 134This ZIP134 |
| Housing units | 191This ZIP191 |
| Median age | 60.2This ZIP60.2North Carolina39.1US 38.9 |
| Median household income | $37,857This ZIP$37,857North Carolina$72,388US $80,734 |
| Median home value | $61,800This ZIP$61,800North Carolina$288,900US $332,700 |
| Bachelor's degree or higher | 12.7%This ZIP12.7% |
| Mean commute | 30.6 minThis ZIP30.6 min |
| Population density | 55.2 / sq miThis ZIP55.2 / sq mi |
Business and tax activity
| Business establishments | 7This ZIP7 |
|---|---|
| Employees | 286This ZIP286 |
| Annual payroll | $15,664,000This ZIP$15,664,000 |
| Tax returns filed | 190This ZIP190 |
| Total adjusted gross income | $8,553,000This ZIP$8,553,000 |
Land area
| Land area | 5.55 sq miThis ZIP5.55 sq mi |
|---|---|
| Water area | 0.01 sq miThis ZIP0.01 sq mi |
Other place names in 27840
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 27840
| ZIP | City | Distance |
|---|---|---|
27841 | Hassell, NC | 2.6 mi |
27857 | Oak City, NC | 3.1 mi |
27825 | Everetts, NC | 7.5 mi |
27871 | Robersonville, NC | 8.9 mi |
27861 | Parmele, NC | 9.0 mi |
27843 | Hobgood, NC | 10.1 mi |
27849 | Lewiston Woodville, NC | 10.3 mi |
27812 | Bethel, NC | 11.5 mi |
27881 | Speed, NC | 11.7 mi |
27892 | Williamston, NC | 12.4 mi |
Find every ZIP code within 10 miles of 27840 →
Questions about this ZIP code
Where is ZIP code 27840?
27840 is in Hamilton, North Carolina, in Martin County. Its published point location is 35.9297, -77.2389.
What county is 27840 in?
27840 lies in Martin County.
What area code is 27840?
Hamilton uses area code 252, from NANPA's telephone records.
What time zone is 27840 in?
27840 uses America/New_York.
How many people live in 27840?
About 306 people live in ZIP code 27840, in 134 households, at 55.2 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 27840?
$37,857 a year, against $72,388 across North Carolina.
What ZIP codes are near 27840?
The closest are 27841 (2.6 mi), 27857 (3.1 mi), 27825 (7.5 mi), 27871 (8.9 mi) and 27861 (9 mi).
Is 27840 a PO Box ZIP code?
27840 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “27840 ZIP Code — Hamilton, North Carolina (Martin County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/27840
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/27840.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.