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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/77091

77091

ZIP 77091 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
28,728
Coordinates
29.8531, -95.4360
☼ Live from 77091 — Houston, TX

Weather right now

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NEXRAD radar
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Local time: —

Where 77091 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 77091
  • 🔢 Type 77091 into a pocket calculator and turn it upside down: IGOLL — not quite a word, sorry.
  • ➕ As a number, 77,091 = 3 × 7 × 3671. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10010110100100011
  • 🏠 Its numerical neighbours: 77090 (Houston, TX, 11 mi away) and 77092 (Houston, TX, 3 mi away).
  • 🔄 Backwards, 77091 becomes 19077, which is not a ZIP code at all.
  • 👥 25 other ZIP codes are made of exactly the same digits (07719, 09177, 09717, 10977, 17097, 17970, …). The farthest-flung twin is 09177 in APO AE, a military post office, 5,335 miles away.
  • 🧭 Farther south than 93% of all ZIP codes, and farther west than 70%.
  • 🎯712 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 77091 and you would come out at 29.85°S, 84.56°E — 1,454 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 04m of daylight. Shortest: 10h 13m.
  • 📏 At 7.1 square miles of land, 77091 is bigger than 23% of ZIP codes — room for about 5.4 Central Parks.
🌙 The sky over 77091 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population28,728This ZIP28,728
Households11,210This ZIP11,210
Housing units12,563This ZIP12,563
Median age33.9This ZIP33.9Texas35.6US 38.9
Median household income$35,432This ZIP$35,432Texas$78,476US $80,734
Median home value$247,500This ZIP$247,500Texas$283,800US $332,700
Median gross rent$1,064This ZIP$1,064Texas$1,403US $1,413
Bachelor's degree or higher20.1%This ZIP20.1%
Mean commute28.5 minThis ZIP28.5 min
Population density4,034.3 / sq miThis ZIP4,034.3 / sq mi

Business and tax activity

Business establishments397This ZIP397
Employees4,818This ZIP4,818
Annual payroll$272,445,000This ZIP$272,445,000
Tax returns filed11,260This ZIP11,260
Total adjusted gross income$521,992,000This ZIP$521,992,000

Land area

Land area7.12 sq miThis ZIP7.12 sq mi
Water area0.03 sq miThis ZIP0.03 sq mi

Other place names in 77091

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

ZIP codes near 77091

ZIPCityDistance
77202 Houston, TX 1.3 mi
77205 Houston, TX 1.3 mi
77206 Houston, TX 1.3 mi
77207 Houston, TX 1.3 mi
77213 Houston, TX 1.3 mi
77215 Houston, TX 1.3 mi
77216 Houston, TX 1.3 mi
77217 Houston, TX 1.3 mi
77218 Houston, TX 1.3 mi
77219 Houston, TX 1.3 mi

Find every ZIP code within 10 miles of 77091 →

Questions about this ZIP code

Where is ZIP code 77091?

77091 is in Houston, Texas, in Harris County, part of the Houston-Pasadena-The Woodlands, TX metropolitan area. Its published point location is 29.8531, -95.4360.

What county is 77091 in?

77091 lies in Harris County.

What area code is 77091?

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

What time zone is 77091 in?

77091 uses America/Chicago.

How many people live in 77091?

About 28,728 people live in ZIP code 77091, in 11,210 households, at 4,034.3 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 77091?

$35,432 a year, against $78,476 across Texas.

What ZIP codes are near 77091?

The closest are 77202 (1.3 mi), 77205 (1.3 mi), 77206 (1.3 mi), 77207 (1.3 mi) and 77213 (1.3 mi).

Is 77091 a PO Box ZIP code?

77091 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “77091 ZIP Code — Houston, Texas (Harris County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/77091

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