Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/77003

77003

ZIP 77003 is in Houston, Texas, in Harris County; area codes 713, 832, 346 and 281; Central time. Houston has 178 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
County
Harris
Population
10,164
Coordinates
29.7506, -95.3458
☼ Live from 77003 — Houston, TX

Weather right now

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Local time: —

Where 77003 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 77003
  • 🔢 Type 77003 into a pocket calculator and turn it upside down: EOOLL — not quite a word, sorry.
  • ➕ 77003 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10010110011001011
  • 🏠 Its numerical neighbours: 77002 (Houston, TX, 1 mi away) and 77004 (Houston, TX, 2 mi away).
  • 🔄 Backwards, 77003 becomes 30077 — and that is a real ZIP code: Roswell, GA, 708 miles away.
  • 👥 17 other ZIP codes are made of exactly the same digits (00737, 00773, 03077, 03770, 07073, 07307, …). The farthest-flung twin is 00773 in Luquillo, PR, 2,021 miles away.
  • 🧭 Farther south than 94% of all ZIP codes, and farther west than 69%.
  • 🎯720 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 77003 and you would come out at 29.75°S, 84.65°E — 1,445 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 03m of daylight. Shortest: 10h 14m.
  • 📏 At 2.7 square miles of land, 77003 is bigger than 14% of ZIP codes — room for about 2.1 Central Parks.
🌙 The sky over 77003 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population10,164This ZIP10,164
Households5,674This ZIP5,674
Housing units6,585This ZIP6,585
Median age36.1This ZIP36.1Texas35.6US 38.9
Median household income$83,980This ZIP$83,980Texas$78,476US $80,734
Median home value$384,400This ZIP$384,400Texas$283,800US $332,700
Median gross rent$1,486This ZIP$1,486Texas$1,403US $1,413
Bachelor's degree or higher45.5%This ZIP45.5%
Mean commute25.8 minThis ZIP25.8 min
Population density3,717.6 / sq miThis ZIP3,717.6 / sq mi

Business and tax activity

Business establishments433This ZIP433
Employees6,543This ZIP6,543
Annual payroll$327,003,000This ZIP$327,003,000
Tax returns filed5,380This ZIP5,380
Total adjusted gross income$490,138,000This ZIP$490,138,000

Land area

Land area2.73 sq miThis ZIP2.73 sq mi
Water area0.03 sq miThis ZIP0.03 sq mi

Other place names in 77003

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

ZIP codes near 77003

ZIPCityDistance
77010 Houston, TX 0.9 mi
77292 Houston, TX 0.9 mi
77002 Houston, TX 1.3 mi
77052 Houston, TX 1.4 mi
77201 Houston, TX 1.4 mi
77203 Houston, TX 1.4 mi
77208 Houston, TX 1.4 mi
77209 Houston, TX 1.4 mi
77210 Houston, TX 1.4 mi
77212 Houston, TX 1.4 mi

Find every ZIP code within 10 miles of 77003 →

Questions about this ZIP code

Where is ZIP code 77003?

77003 is in Houston, Texas, in Harris County, part of the Houston-Pasadena-The Woodlands, TX metropolitan area. Its published point location is 29.7506, -95.3458.

What county is 77003 in?

77003 lies in Harris County.

What area code is 77003?

Houston uses area codes 713, 832, 346 and 281, from NANPA's telephone records.

What time zone is 77003 in?

77003 uses America/Chicago.

How many people live in 77003?

About 10,164 people live in ZIP code 77003, in 5,674 households, at 3,717.6 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 77003?

$83,980 a year, against $78,476 across Texas.

What ZIP codes are near 77003?

The closest are 77010 (0.9 mi), 77292 (0.9 mi), 77002 (1.3 mi), 77052 (1.4 mi) and 77201 (1.4 mi).

Is 77003 a PO Box ZIP code?

77003 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “77003 ZIP Code — Houston, Texas (Harris County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/77003

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