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/30078

30078

ZIP 30078 is in Snellville, Georgia, in Gwinnett County; area codes 770, 678, 470 and 943; Eastern time. Snellville has 2 ZIP codes; the other is 30039.

Type
Standard
Time zone
America/New_York
County
Gwinnett
Population
41,597
Coordinates
33.8610, -84.0180
☼ Live from 30078 — Snellville, GA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 30078 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 30078
  • 🔢 Type 30078 into a pocket calculator and turn it upside down: BLOOE — not quite a word, sorry.
  • ➕ As a number, 30,078 = 2 × 3 × 3 × 3 × 557. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111010101111110
  • 🏠 Its numerical neighbours: 30077 (Roswell, GA, 23 mi away) and 30079 (Scottdale, GA, 15 mi away).
  • 🔄 Backwards, 30078 becomes 87003, which is not a ZIP code at all.
  • 👥 27 other ZIP codes are made of exactly the same digits (00738, 00783, 03087, 03780, 03870, 07083, …). The farthest-flung twin is 00738 in Fajardo, PR, 1,559 miles away.
  • 🧭 Farther south than 80% of all ZIP codes, and farther east than 60%.
  • 🎯903 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 30078 and you would come out at 33.86°S, 95.98°E — 1,159 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 24m of daylight. Shortest: 9h 54m.
  • 📏 At 17.3 square miles of land, 30078 is bigger than 35% of ZIP codes — room for about 13 Central Parks.
🌙 The sky over 30078 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population41,597This ZIP41,597
Households13,295This ZIP13,295
Housing units13,962This ZIP13,962
Median age38.4This ZIP38.4Georgia37.6US 38.9
Median household income$98,257This ZIP$98,257Georgia$77,353US $80,734
Median home value$353,200This ZIP$353,200Georgia$303,300US $332,700
Median gross rent$1,788This ZIP$1,788Georgia$1,393US $1,413
Bachelor's degree or higher40.6%This ZIP40.6%
Mean commute35.5 minThis ZIP35.5 min
Population density2,403.3 / sq miThis ZIP2,403.3 / sq mi

Business and tax activity

Business establishments1,224This ZIP1,224
Employees14,318This ZIP14,318
Annual payroll$577,636,000This ZIP$577,636,000
Tax returns filed18,920This ZIP18,920
Total adjusted gross income$1,442,834,000This ZIP$1,442,834,000

Land area

Land area17.31 sq miThis ZIP17.31 sq mi
Water area0.26 sq miThis ZIP0.26 sq mi

Other place names in 30078

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

ZIP codes near 30078

ZIPCityDistance
30017 Grayson, GA 3.7 mi
30086 Stone Mountain, GA 3.9 mi
30333 Atlanta, GA 3.9 mi
30356 Atlanta, GA 3.9 mi
30359 Atlanta, GA 3.9 mi
30362 Atlanta, GA 3.9 mi
30366 Atlanta, GA 3.9 mi
31119 Atlanta, GA 3.9 mi
31141 Atlanta, GA 3.9 mi
31145 Atlanta, GA 3.9 mi

Find every ZIP code within 10 miles of 30078 →

Questions about this ZIP code

Where is ZIP code 30078?

30078 is in Snellville, Georgia, in Gwinnett County, part of the Atlanta-Sandy Springs-Roswell, GA metropolitan area. Its published point location is 33.8610, -84.0180.

What county is 30078 in?

30078 lies in Gwinnett County.

What area code is 30078?

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

What time zone is 30078 in?

30078 uses America/New_York.

How many people live in 30078?

About 41,597 people live in ZIP code 30078, in 13,295 households, at 2,403.3 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 30078?

$98,257 a year, against $77,353 across Georgia.

What ZIP codes are near 30078?

The closest are 30017 (3.7 mi), 30086 (3.9 mi), 30333 (3.9 mi), 30356 (3.9 mi) and 30359 (3.9 mi).

Is 30078 a PO Box ZIP code?

30078 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “30078 ZIP Code — Snellville, Georgia (Gwinnett County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/30078

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/30078.json

Underlying data is public domain or openly licensed — sources, vintages and licences.