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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/78520

78520

ZIP 78520 is in Brownsville, Texas, in Cameron County; area code 956; Central time. Brownsville has 5 ZIP codes; the others are 78521, 78522, 78523 and 78526.

Type
Standard
Time zone
America/Chicago
County
Cameron
Population
64,740
Coordinates
25.9609, -97.5486
☼ Live from 78520 — Brownsville, TX

Weather right now

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Local time: —

Where 78520 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 78520
  • 🔢 Type 78520 into a pocket calculator and turn it upside down: OZSBL — not quite a word, sorry.
  • ➕ As a number, 78,520 = 2 × 2 × 2 × 5 × 13 × 151. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10011001010111000
  • 🏠 Its numerical neighbours: 78516 (Alamo, TX, 38 mi away) and 78521 (Brownsville, TX, 14 mi away).
  • 🔄 Backwards, 78520 becomes 02587, which is not a ZIP code at all.
  • 👥 56 other ZIP codes are made of exactly the same digits (02857, 02875, 05827, 05872, 07825, 07852, …). The farthest-flung twin is 05872 in West Charleston, VT, 1,927 miles away.
  • 🧭 Farther south than 98% of all ZIP codes, and farther west than 76%.
  • 🎯960 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 78520 and you would come out at 25.96°S, 82.45°E — 1,336 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 13h 46m of daylight. Shortest: 10h 31m.
  • 📏 At 39.8 square miles of land, 78520 is bigger than 53% of ZIP codes — room for about 30 Central Parks.
🌙 The sky over 78520 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population64,740This ZIP64,740
Households20,847This ZIP20,847
Housing units23,135This ZIP23,135
Median age31.9This ZIP31.9Texas35.6US 38.9
Median household income$50,116This ZIP$50,116Texas$78,476US $80,734
Median home value$146,000This ZIP$146,000Texas$283,800US $332,700
Median gross rent$865This ZIP$865Texas$1,403US $1,413
Bachelor's degree or higher23.9%This ZIP23.9%
Mean commute22.5 minThis ZIP22.5 min
Population density1,627.7 / sq miThis ZIP1,627.7 / sq mi

Business and tax activity

Business establishments1,169This ZIP1,169
Employees20,609This ZIP20,609
Annual payroll$659,725,000This ZIP$659,725,000
Tax returns filed28,310This ZIP28,310
Total adjusted gross income$1,308,955,000This ZIP$1,308,955,000

Land area

Land area39.77 sq miThis ZIP39.77 sq mi
Water area2.40 sq miThis ZIP2.40 sq mi

Other place names in 78520

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

ZIP codes near 78520

ZIPCityDistance
78523 Brownsville, TX 2.2 mi
78575 Olmito, TX 5.0 mi
78522 Brownsville, TX 5.2 mi
78526 Brownsville, TX 6.5 mi
78586 San Benito, TX 11.9 mi
78567 Los Indios, TX 13.1 mi
78521 Brownsville, TX 14.4 mi
78566 Los Fresnos, TX 15.7 mi
78568 Lozano, TX 15.9 mi
78578 Port Isabel, TX 16.1 mi

Find every ZIP code within 10 miles of 78520 →

Questions about this ZIP code

Where is ZIP code 78520?

78520 is in Brownsville, Texas, in Cameron County, part of the Brownsville-Harlingen, TX metropolitan area. Its published point location is 25.9609, -97.5486.

What county is 78520 in?

78520 lies in Cameron County.

What area code is 78520?

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

What time zone is 78520 in?

78520 uses America/Chicago.

How many people live in 78520?

About 64,740 people live in ZIP code 78520, in 20,847 households, at 1,627.7 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 78520?

$50,116 a year, against $78,476 across Texas.

What ZIP codes are near 78520?

The closest are 78523 (2.2 mi), 78575 (5 mi), 78522 (5.2 mi), 78526 (6.5 mi) and 78586 (11.9 mi).

Is 78520 a PO Box ZIP code?

78520 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “78520 ZIP Code — Brownsville, Texas (Cameron County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/78520

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