Weather right now
Asking the National Weather Service…
Where 75840 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 75840 into a pocket calculator and turn it upside down: OhBSL — not quite a word, sorry.
- ➕ As a number, 75,840 = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 79. Its digits add up to 24, a total 2,425 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10010100001000000 - 🏠 Its numerical neighbours: 75839 (Elkhart, TX, 33 mi away) and 75844 (Grapeland, TX, 43 mi away).
- 🔄 Backwards, 75840 becomes 04857, which is not a ZIP code at all.
- 👥 57 other ZIP codes are made of exactly the same digits (04578, 04758, 04785, 05478, 05487, 05748, …). The farthest-flung twin is 04785 in Van Buren, ME, 1,818 miles away.
- 🧭 Farther south than 89% of all ZIP codes, and farther west than 72%.
- 🎯573 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 75840 and you would come out at 31.78°S, 83.91°E — 1,405 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 14m of daylight. Shortest: 10h 04m.
- 📏 At 267.5 square miles of land, 75840 is bigger than 94% of ZIP codes — room for about 203 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 6,994This ZIP6,994 |
|---|---|
| Households | 2,507This ZIP2,507 |
| Housing units | 3,071This ZIP3,071 |
| Median age | 40.0This ZIP40.0Texas35.6US 38.9 |
| Median household income | $58,224This ZIP$58,224Texas$78,476US $80,734 |
| Median home value | $206,200This ZIP$206,200Texas$283,800US $332,700 |
| Median gross rent | $878This ZIP$878Texas$1,403US $1,413 |
| Bachelor's degree or higher | 19.7%This ZIP19.7% |
| Mean commute | 21.8 minThis ZIP21.8 min |
| Population density | 26.1 / sq miThis ZIP26.1 / sq mi |
Business and tax activity
| Business establishments | 210This ZIP210 |
|---|---|
| Employees | 2,066This ZIP2,066 |
| Annual payroll | $85,516,000This ZIP$85,516,000 |
| Tax returns filed | 3,200This ZIP3,200 |
| Total adjusted gross income | $219,180,000This ZIP$219,180,000 |
Land area
| Land area | 267.50 sq miThis ZIP267.50 sq mi |
|---|---|
| Water area | 4.43 sq miThis ZIP4.43 sq mi |
Other place names in 75840
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 75840
| ZIP | City | Distance |
|---|---|---|
75886 | Tennessee Colony, TX | 10.4 mi |
75884 | Tennessee Colony, TX | 11.8 mi |
75859 | Streetman, TX | 11.9 mi |
75861 | Tennessee Colony, TX | 13.0 mi |
75832 | Cayuga, TX | 13.9 mi |
75848 | Kirvin, TX | 14.1 mi |
75860 | Teague, TX | 14.2 mi |
75880 | Tennessee Colony, TX | 15.4 mi |
75853 | Montalba, TX | 19.9 mi |
75855 | Oakwood, TX | 20.6 mi |
Find every ZIP code within 10 miles of 75840 →
Questions about this ZIP code
Where is ZIP code 75840?
75840 is in Fairfield, Texas, in Freestone County. Its published point location is 31.7826, -96.0936.
What county is 75840 in?
75840 lies in Freestone County.
What area code is 75840?
Fairfield uses area codes 903 and 430, from NANPA's telephone records.
What time zone is 75840 in?
75840 uses America/Chicago.
How many people live in 75840?
About 6,994 people live in ZIP code 75840, in 2,507 households, at 26.1 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 75840?
$58,224 a year, against $78,476 across Texas.
What ZIP codes are near 75840?
The closest are 75886 (10.4 mi), 75884 (11.8 mi), 75859 (11.9 mi), 75861 (13 mi) and 75832 (13.9 mi).
Is 75840 a PO Box ZIP code?
75840 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “75840 ZIP Code — Fairfield, Texas (Freestone County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/75840
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/75840.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.