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Where 75231 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 75231 into a pocket calculator and turn it upside down: IEZSL — not quite a word, sorry.
- ➕ As a number, 75,231 = 3 × 3 × 13 × 643. Its digits add up to 18, a total 2,332 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10010010111011111 - 🏠 Its numerical neighbours: 75230 (Dallas, TX, 3 mi away) and 75232 (Dallas, TX, 16 mi away).
- 🔄 Backwards, 75231 becomes 13257, which is not a ZIP code at all.
- 👥 56 other ZIP codes are made of exactly the same digits (12537, 13752, 15237, 15327, 15723, 15732, …). The farthest-flung twin is 12537 in Hughsonville, NY, 1,386 miles away.
- 🧭 Farther south than 85% of all ZIP codes, and farther west than 73%.
- 🎯491 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 75231 and you would come out at 32.87°S, 83.25°E — 1,321 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 19m of daylight. Shortest: 9h 59m.
- 📏 At 5.5 square miles of land, 75231 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 | 38,370This ZIP38,370 |
|---|---|
| Households | 18,038This ZIP18,038 |
| Housing units | 21,341This ZIP21,341 |
| Median age | 32.2This ZIP32.2Texas35.6US 38.9 |
| Median household income | $58,540This ZIP$58,540Texas$78,476US $80,734 |
| Median home value | $522,400This ZIP$522,400Texas$283,800US $332,700 |
| Median gross rent | $1,273This ZIP$1,273Texas$1,403US $1,413 |
| Bachelor's degree or higher | 39.7%This ZIP39.7% |
| Mean commute | 26.0 minThis ZIP26.0 min |
| Population density | 6,959.9 / sq miThis ZIP6,959.9 / sq mi |
Business and tax activity
| Business establishments | 1,571This ZIP1,571 |
|---|---|
| Employees | 28,378This ZIP28,378 |
| Annual payroll | $2,288,839,000This ZIP$2,288,839,000 |
| Tax returns filed | 17,210This ZIP17,210 |
| Total adjusted gross income | $1,474,600,000This ZIP$1,474,600,000 |
Land area
| Land area | 5.51 sq miThis ZIP5.51 sq mi |
|---|---|
| Water area | 0.03 sq miThis ZIP0.03 sq mi |
Other place names in 75231
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 75231
| ZIP | City | Distance |
|---|---|---|
75238 | Dallas, TX | 2.3 mi |
75225 | Dallas, TX | 2.6 mi |
75243 | Dallas, TX | 2.8 mi |
75214 | Dallas, TX | 3.1 mi |
75206 | Dallas, TX | 3.2 mi |
75230 | Dallas, TX | 3.3 mi |
75218 | Dallas, TX | 3.4 mi |
75251 | Dallas, TX | 3.5 mi |
75205 | Dallas, TX | 3.8 mi |
75221 | Dallas, TX | 4.7 mi |
Find every ZIP code within 10 miles of 75231 →
Questions about this ZIP code
Where is ZIP code 75231?
75231 is in Dallas, Texas, in Dallas County, part of the Dallas-Fort Worth-Arlington, TX metropolitan area. Its published point location is 32.8735, -96.7476.
What county is 75231 in?
75231 lies in Dallas County.
What area code is 75231?
Dallas uses area codes 214, 972, 469 and 945, from NANPA's telephone records.
What time zone is 75231 in?
75231 uses America/Chicago.
How many people live in 75231?
About 38,370 people live in ZIP code 75231, in 18,038 households, at 6,959.9 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 75231?
$58,540 a year, against $78,476 across Texas.
What ZIP codes are near 75231?
The closest are 75238 (2.3 mi), 75225 (2.6 mi), 75243 (2.8 mi), 75214 (3.1 mi) and 75206 (3.2 mi).
Is 75231 a PO Box ZIP code?
75231 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “75231 ZIP Code — Dallas, Texas (Dallas County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/75231
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/75231.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.