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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/78040

78040

ZIP 78040 is in Laredo, Texas, in Webb County; area code 956; Central time. Laredo has 7 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
County
Webb
Metro area
Laredo, TX
Population
35,709
Coordinates
27.5134, -99.5021
☼ Live from 78040 — Laredo, TX

Weather right now

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Local time: —

Where 78040 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.

★ Weird and wonderful facts about 78040
  • 🔢 Type 78040 into a pocket calculator and turn it upside down: OhOBL — not quite a word, sorry.
  • ➕ As a number, 78,040 = 2 × 2 × 2 × 5 × 1951. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011000011011000
  • 🏠 Its numerical neighbours: 78039 (La Coste, TX, 131 mi away) and 78041 (Laredo, TX, 4 mi away).
  • 🔄 Backwards, 78040 becomes 04087 — and that is a real ZIP code: Waterboro, ME, 1,945 miles away.
  • 👥 25 other ZIP codes are made of exactly the same digits (00784, 04078, 04087, 04780, 07480, 07840, …). The farthest-flung twin is 00784 in Guayama, PR, 2,217 miles away.
  • 🧭 Farther south than 97% of all ZIP codes, and farther west than 79%.
  • 🎯853 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 78040 and you would come out at 27.51°S, 80.50°E — 1,497 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 13h 53m of daylight. Shortest: 10h 24m.
  • 📏 At 6.3 square miles of land, 78040 is bigger than 21% of ZIP codes — room for about 4.8 Central Parks.
🌙 The sky over 78040 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population35,709This ZIP35,709
Households11,518This ZIP11,518
Housing units13,455This ZIP13,455
Median age30.1This ZIP30.1Texas35.6US 38.9
Median household income$36,092This ZIP$36,092Texas$78,476US $80,734
Median home value$118,700This ZIP$118,700Texas$283,800US $332,700
Median gross rent$895This ZIP$895Texas$1,403US $1,413
Bachelor's degree or higher8.6%This ZIP8.6%
Mean commute20.2 minThis ZIP20.2 min
Population density5,663.6 / sq miThis ZIP5,663.6 / sq mi

Business and tax activity

Business establishments717This ZIP717
Employees9,641This ZIP9,641
Annual payroll$255,894,000This ZIP$255,894,000
Tax returns filed17,570This ZIP17,570
Total adjusted gross income$503,655,000This ZIP$503,655,000

Land area

Land area6.31 sq miThis ZIP6.31 sq mi
Water area0.13 sq miThis ZIP0.13 sq mi

Other place names in 78040

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 78040

ZIPCityDistance
78042 Laredo, TX 3.9 mi
78041 Laredo, TX 4.0 mi
78046 Laredo, TX 11.2 mi
78043 Laredo, TX 12.8 mi
78044 Laredo, TX 22.5 mi
78045 Laredo, TX 24.7 mi
78369 Mirando City, TX 26.2 mi
78371 Oilton, TX 26.3 mi
78067 San Ygnacio, TX 29.6 mi
78019 Encinal, TX 38.0 mi

Find every ZIP code within 10 miles of 78040 →

Questions about this ZIP code

Where is ZIP code 78040?

78040 is in Laredo, Texas, in Webb County, part of the Laredo, TX metropolitan area. Its published point location is 27.5134, -99.5021.

What county is 78040 in?

78040 lies in Webb County.

What area code is 78040?

Laredo uses area code 956, from NANPA's telephone records.

What time zone is 78040 in?

78040 uses America/Chicago.

How many people live in 78040?

About 35,709 people live in ZIP code 78040, in 11,518 households, at 5,663.6 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 78040?

$36,092 a year, against $78,476 across Texas.

What ZIP codes are near 78040?

The closest are 78042 (3.9 mi), 78041 (4 mi), 78046 (11.2 mi), 78043 (12.8 mi) and 78044 (22.5 mi).

Is 78040 a PO Box ZIP code?

78040 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “78040 ZIP Code — Laredo, Texas (Webb County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78040

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