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Where 77861 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 77861 into a pocket calculator and turn it upside down: IgBLL — not quite a word, sorry.
- ➕ As a number, 77,861 = 7 × 7 × 7 × 227. Its digits add up to 29, a total 1,296 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10011000000100101 - 🏠 Its numerical neighbours: 77859 (Hearne, TX, 27 mi away) and 77862 (Kurten, TX, 10 mi away).
- 🔄 Backwards, 77861 becomes 16877 — and that is a real ZIP code: Warriors Mark, PA, 1,222 miles away.
- 👥 17 other ZIP codes are made of exactly the same digits (16877, 17768, 17867, 17876, 18767, 61778, …). The farthest-flung twin is 18767 in Wilkes Barre, PA, 1,340 miles away.
- 🧭 Farther south than 91% of all ZIP codes, and farther west than 72%.
- 🎯644 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 77861 and you would come out at 30.72°S, 83.89°E — 1,471 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 08m of daylight. Shortest: 10h 09m.
- 📏 At 115.2 square miles of land, 77861 is bigger than 81% of ZIP codes — room for about 87 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 3,065This ZIP3,065 |
|---|---|
| Households | 1,275This ZIP1,275 |
| Housing units | 1,488This ZIP1,488 |
| Median age | 39.4This ZIP39.4Texas35.6US 38.9 |
| Median household income | $67,275This ZIP$67,275Texas$78,476US $80,734 |
| Median home value | $232,500This ZIP$232,500Texas$283,800US $332,700 |
| Median gross rent | $1,130This ZIP$1,130Texas$1,403US $1,413 |
| Bachelor's degree or higher | 32.0%This ZIP32.0% |
| Mean commute | 37.1 minThis ZIP37.1 min |
| Population density | 26.6 / sq miThis ZIP26.6 / sq mi |
Business and tax activity
| Business establishments | 36This ZIP36 |
|---|---|
| Employees | 220This ZIP220 |
| Annual payroll | $10,506,000This ZIP$10,506,000 |
| Tax returns filed | 1,500This ZIP1,500 |
| Total adjusted gross income | $144,345,000This ZIP$144,345,000 |
Land area
| Land area | 115.25 sq miThis ZIP115.25 sq mi |
|---|---|
| Water area | 3.88 sq miThis ZIP3.88 sq mi |
Other place names in 77861
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 77861
| ZIP | City | Distance |
|---|---|---|
77862 | Kurten, TX | 10.2 mi |
77872 | North Zulch, TX | 11.3 mi |
77831 | Bedias, TX | 12.0 mi |
77808 | Bryan, TX | 13.1 mi |
77802 | Bryan, TX | 13.3 mi |
77875 | Roans Prairie, TX | 14.0 mi |
77805 | Bryan, TX | 14.6 mi |
77842 | College Station, TX | 14.6 mi |
77844 | College Station, TX | 14.6 mi |
77830 | Anderson, TX | 14.7 mi |
Find every ZIP code within 10 miles of 77861 →
Questions about this ZIP code
Where is ZIP code 77861?
77861 is in Iola, Texas, in Grimes County. Its published point location is 30.7217, -96.1093.
What county is 77861 in?
77861 lies in Grimes County.
What area code is 77861?
Iola uses area code 936, from NANPA's telephone records.
What time zone is 77861 in?
77861 uses America/Chicago.
How many people live in 77861?
About 3,065 people live in ZIP code 77861, in 1,275 households, at 26.6 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 77861?
$67,275 a year, against $78,476 across Texas.
What ZIP codes are near 77861?
The closest are 77862 (10.2 mi), 77872 (11.3 mi), 77831 (12 mi), 77808 (13.1 mi) and 77802 (13.3 mi).
Is 77861 a PO Box ZIP code?
77861 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “77861 ZIP Code — Iola, Texas (Grimes County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/77861
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/77861.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.