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Where 76666 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 76666 into a pocket calculator and turn it upside down: ggggL — not quite a word, sorry.
- ➕ As a number, 76,666 = 2 × 38333. Its digits add up to 31, a total 799 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10010101101111010 - 🏠 Its numerical neighbours: 76665 (Meridian, TX, 49 mi away) and 76667 (Mexia, TX, 37 mi away).
- 🔄 Backwards, 76666 becomes 66667 — and that is a real ZIP code: Topeka, KS, 488 miles away.
- 👥 1 other ZIP code is made of exactly the same digits (66667). The farthest-flung twin is 66667 in Topeka, KS, 488 miles away.
- 🧭 Farther south than 88% of all ZIP codes, and farther west than 74%.
- 🎯546 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 76666 and you would come out at 32.04°S, 83.11°E — 1,369 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 15m of daylight. Shortest: 10h 03m.
- 📏 At 28.1 square miles of land, 76666 is bigger than 44% of ZIP codes — room for about 21 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 261This ZIP261 |
|---|---|
| Households | 86This ZIP86 |
| Housing units | 101This ZIP101 |
| Median age | 30.5This ZIP30.5Texas35.6US 38.9 |
| Median home value | $93,000This ZIP$93,000Texas$283,800US $332,700 |
| Bachelor's degree or higher | 8.0%This ZIP8.0% |
| Mean commute | 42.5 minThis ZIP42.5 min |
| Population density | 9.3 / sq miThis ZIP9.3 / sq mi |
Business and tax activity
| Tax returns filed | 120This ZIP120 |
|---|---|
| Total adjusted gross income | $7,093,000This ZIP$7,093,000 |
Land area
| Land area | 28.09 sq miThis ZIP28.09 sq mi |
|---|---|
| Water area | 0.25 sq miThis ZIP0.25 sq mi |
Counties 76666 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Hill County | 63.1% |
| Navarro County | 36.9% |
Other place names in 76666
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 76666
| ZIP | City | Distance |
|---|---|---|
76628 | Brandon, TX | 4.4 mi |
76650 | Irene, TX | 4.5 mi |
76631 | Bynum, TX | 5.6 mi |
76641 | Frost, TX | 6.3 mi |
76660 | Malone, TX | 7.2 mi |
76670 | Milford, TX | 8.6 mi |
76651 | Italy, TX | 10.1 mi |
76626 | Blooming Grove, TX | 11.6 mi |
76676 | Penelope, TX | 11.9 mi |
76645 | Hillsboro, TX | 13.7 mi |
Find every ZIP code within 10 miles of 76666 →
Questions about this ZIP code
Where is ZIP code 76666?
76666 is in Mertens, Texas, in Hill County. Its published point location is 32.0403, -96.8950.
What county is 76666 in?
76666 spans 2 counties: Hill County and Navarro County. Most of it falls in Hill 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 time zone is 76666 in?
76666 uses America/Chicago.
How many people live in 76666?
About 261 people live in ZIP code 76666, in 86 households, at 9.3 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 76666?
The closest are 76628 (4.4 mi), 76650 (4.5 mi), 76631 (5.6 mi), 76641 (6.3 mi) and 76660 (7.2 mi).
Is 76666 a PO Box ZIP code?
76666 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “76666 ZIP Code — Mertens, Texas (Hill County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/76666
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/76666.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.