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/30042

30042

ZIP 30042 is in Lawrenceville, Georgia, in Gwinnett County; area codes 470, 678, 943 and 770; Eastern time. Lawrenceville has 6 ZIP codes; the others are 30043, 30044, 30045, 30046 and 30049.

Type
No street area
Time zone
America/New_York
County
Gwinnett
Coordinates
33.9295, -84.1032

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 30044, whose figures describe that area — not this ZIP code.

☼ Live from 30042 — Lawrenceville, GA

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Where 30042 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 30042
  • 🔢 Type 30042 into a pocket calculator and turn it upside down: ZhOOE — not quite a word, sorry.
  • ➕ As a number, 30,042 = 2 × 3 × 3 × 1669. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111010101011010
  • 🏠 Its numerical neighbours: 30041 (Cumming, GA, 18 mi away) and 30043 (Lawrenceville, GA, 8 mi away).
  • 🔄 Backwards, 30042 becomes 24003 — and that is a real ZIP code: Roanoke, VA, 328 miles away.
  • 👥 27 other ZIP codes are made of exactly the same digits (02043, 02304, 02340, 03042, 03240, 04032, …). The farthest-flung twin is 34002 in APO AA, a military post office, 1,748 miles away.
  • 🧭 Farther south than 80% of all ZIP codes, and farther east than 60%.
  • 🎯896 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 30042 and you would come out at 33.93°S, 95.90°E — 1,164 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 25m of daylight. Shortest: 9h 53m.
🌙 The sky over 30042 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments8This ZIP8
Employees259This ZIP259
Annual payroll$10,431,000This ZIP$10,431,000

Land area

ZIP codes near 30042

ZIPCityDistance
30044 Lawrenceville, GA 2.0 mi
30099 Duluth, GA 2.1 mi
30086 Stone Mountain, GA 3.1 mi
30333 Atlanta, GA 3.1 mi
30356 Atlanta, GA 3.1 mi
30359 Atlanta, GA 3.1 mi
30362 Atlanta, GA 3.1 mi
30366 Atlanta, GA 3.1 mi
31119 Atlanta, GA 3.1 mi
31141 Atlanta, GA 3.1 mi

Find every ZIP code within 10 miles of 30042 →

Questions about this ZIP code

Where is ZIP code 30042?

30042 is in Lawrenceville, Georgia, in Gwinnett County, part of the Atlanta-Sandy Springs-Roswell, GA metropolitan area. Its published point location is 33.9295, -84.1032.

What county is 30042 in?

30042 lies in Gwinnett County.

What area code is 30042?

Lawrenceville uses area codes 470, 678, 943 and 770, from NANPA's telephone records.

What time zone is 30042 in?

30042 uses America/New_York.

What ZIP codes are near 30042?

The closest are 30044 (2 mi), 30099 (2.1 mi), 30086 (3.1 mi), 30333 (3.1 mi) and 30356 (3.1 mi).

Is 30042 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. “30042 ZIP Code — Lawrenceville, Georgia (Gwinnett County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/30042

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/30042.json

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