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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/77303

77303

ZIP 77303 is in Conroe, Texas, in Montgomery County; area code 936; Central time. Conroe has 8 ZIP codes in all.

Type
Standard
Time zone
America/Chicago
County
Montgomery
Population
28,854
Coordinates
30.3780, -95.3771
☼ Live from 77303 — Conroe, TX

Weather right now

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Where 77303 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 77303
  • 🔢 Type 77303 into a pocket calculator and turn it upside down: EOELL — not quite a word, sorry.
  • ➕ As a number, 77,303 = 23 × 3361. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10010110111110111
  • 🏠 Its numerical neighbours: 77302 (Conroe, TX, 11 mi away) and 77304 (Conroe, TX, 9 mi away).
  • 🔄 Backwards, 77303 becomes 30377 — and that is a real ZIP code: Atlanta, GA, 681 miles away.
  • 👥 17 other ZIP codes are made of exactly the same digits (03773, 07733, 30377, 33077, 33707, 33770, …). The farthest-flung twin is 03773 in Newport, NH, 1,555 miles away.
  • 🧭 Farther south than 92% of all ZIP codes, and farther west than 69%.
  • 🎯677 miles south of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 77303 and you would come out at 30.38°S, 84.62°E — 1,481 miles from West Island, Cocos Islands, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 07m of daylight. Shortest: 10h 11m.
  • 📏 At 60.9 square miles of land, 77303 is bigger than 65% of ZIP codes — room for about 46 Central Parks.
🌙 The sky over 77303 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population28,854This ZIP28,854
Households9,754This ZIP9,754
Housing units10,525This ZIP10,525
Median age33.3This ZIP33.3Texas35.6US 38.9
Median household income$75,348This ZIP$75,348Texas$78,476US $80,734
Median home value$240,700This ZIP$240,700Texas$283,800US $332,700
Median gross rent$1,204This ZIP$1,204Texas$1,403US $1,413
Bachelor's degree or higher17.1%This ZIP17.1%
Mean commute31.9 minThis ZIP31.9 min
Population density473.6 / sq miThis ZIP473.6 / sq mi

Business and tax activity

Business establishments393This ZIP393
Employees7,721This ZIP7,721
Annual payroll$496,885,000This ZIP$496,885,000
Tax returns filed10,430This ZIP10,430
Total adjusted gross income$660,842,000This ZIP$660,842,000

Land area

Land area60.92 sq miThis ZIP60.92 sq mi
Water area0.18 sq miThis ZIP0.18 sq mi

Other place names in 77303

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

ZIP codes near 77303

ZIPCityDistance
77301 Conroe, TX 5.8 mi
77305 Conroe, TX 6.0 mi
77393 Spring, TX 6.2 mi
77378 Willis, TX 6.9 mi
77306 Conroe, TX 7.4 mi
77304 Conroe, TX 9.0 mi
77302 Conroe, TX 10.9 mi
77328 Cleveland, TX 11.2 mi
77318 Willis, TX 11.4 mi
77358 New Waverly, TX 12.1 mi

Find every ZIP code within 10 miles of 77303 →

Questions about this ZIP code

Where is ZIP code 77303?

77303 is in Conroe, Texas, in Montgomery County, part of the Houston-Pasadena-The Woodlands, TX metropolitan area. Its published point location is 30.3780, -95.3771.

What county is 77303 in?

77303 lies in Montgomery County.

What area code is 77303?

Conroe uses area code 936, from NANPA's telephone records.

What time zone is 77303 in?

77303 uses America/Chicago.

How many people live in 77303?

About 28,854 people live in ZIP code 77303, in 9,754 households, at 473.6 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 77303?

$75,348 a year, against $78,476 across Texas.

What ZIP codes are near 77303?

The closest are 77301 (5.8 mi), 77305 (6 mi), 77393 (6.2 mi), 77378 (6.9 mi) and 77306 (7.4 mi).

Is 77303 a PO Box ZIP code?

77303 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “77303 ZIP Code — Conroe, Texas (Montgomery County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/77303

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