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/77210

77210

ZIP 77210 is in Houston, Texas, in Harris County; area codes 713, 832, 346 and 281; Central time. Houston has 178 ZIP codes in all.

Type
No street area
Time zone
America/Chicago
County
Harris
Coordinates
29.7633, -95.3633

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 77002, whose figures describe that area — not this ZIP code.

☼ Live from 77210 — Houston, TX

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Where 77210 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 77210
  • 🔢 Type 77210 into a pocket calculator and turn it upside down: OIZLL — not quite a word, sorry.
  • ➕ As a number, 77,210 = 2 × 5 × 7 × 1103. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10010110110011010
  • 🏠 Its numerical neighbours: 77209 (Houston, TX, 0 mi away) and 77212 (Houston, TX, 0 mi away).
  • 🔄 Backwards, 77210 becomes 01277, which is not a ZIP code at all.
  • 👥 37 other ZIP codes are made of exactly the same digits (01772, 02717, 02771, 07712, 07721, 10277, …). The farthest-flung twin is 02717 in East Freetown, MA, 1,590 miles away.
  • 🧭 Farther south than 94% of all ZIP codes, and farther west than 69%.
  • 🎯719 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 77210 and you would come out at 29.76°S, 84.64°E — 1,446 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 04m of daylight. Shortest: 10h 14m.
🌙 The sky over 77210 today
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🌋 Shake report
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Source: USGS.

Business and tax activity

Business establishments8This ZIP8
Employees2,546This ZIP2,546
Annual payroll$750,501,000This ZIP$750,501,000

Land area

ZIP codes near 77210

ZIPCityDistance
77052 Houston, TX 0.0 mi
77201 Houston, TX 0.0 mi
77203 Houston, TX 0.0 mi
77208 Houston, TX 0.0 mi
77209 Houston, TX 0.0 mi
77212 Houston, TX 0.0 mi
77252 Houston, TX 0.0 mi
77253 Houston, TX 0.0 mi
77297 Houston, TX 0.0 mi
77002 Houston, TX 0.5 mi

Find every ZIP code within 10 miles of 77210 →

Questions about this ZIP code

Where is ZIP code 77210?

77210 is in Houston, Texas, in Harris County, part of the Houston-Pasadena-The Woodlands, TX metropolitan area. Its published point location is 29.7633, -95.3633.

What county is 77210 in?

77210 lies in Harris County.

What area code is 77210?

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

What time zone is 77210 in?

77210 uses America/Chicago.

What ZIP codes are near 77210?

The closest are 77052 (0 mi), 77201 (0 mi), 77203 (0 mi), 77208 (0 mi) and 77209 (0 mi).

Is 77210 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “77210 ZIP Code — Houston, Texas (Harris County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/77210

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/77210.json

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