30040
ZIP 30040 is in Cumming, Georgia, mostly in Forsyth County; area codes 470, 678, 770 and 943; Eastern time. Cumming has 3 ZIP codes; the others are 30028 and 30041.
- Type
- Standard
- Time zone
- America/New_York
- County
- Forsyth +1 more
- Metro area
- Atlanta-Sandy Springs-Roswell, GA
- Population
- 82,532
- Coordinates
- 34.2234, -84.1764
Weather right now
Asking the National Weather Service…
Where 30040 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.
- 🔢 Type 30040 into a pocket calculator and turn it upside down: OhOOE — not quite a word, sorry.
- ➕ As a number, 30,040 = 2 × 2 × 2 × 5 × 751. Its digits add up to 7, a total 150 other ZIP codes share.
- 💾In binary, the way a computer stores it:
111010101011000 - 🏠 Its numerical neighbours: 30039 (Snellville, GA, 30 mi away) and 30041 (Cumming, GA, 5 mi away).
- 🔄 Backwards, 30040 becomes 04003 — and that is a real ZIP code: Bailey Island, ME, 1,004 miles away.
- 👥 5 other ZIP codes are made of exactly the same digits (03040, 04003, 04030, 30004, 40003). The farthest-flung twin is 04003 in Bailey Island, ME, 1,004 miles away.
- 🧭 Farther south than 77% of all ZIP codes, and farther east than 59%.
- 🎯882 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 30040 and you would come out at 34.22°S, 95.82°E — 1,169 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 26m of daylight. Shortest: 9h 52m.
- 📏 At 57.7 square miles of land, 30040 is bigger than 63% of ZIP codes — room for about 44 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 82,532This ZIP82,532 |
|---|---|
| Households | 27,727This ZIP27,727 |
| Housing units | 28,538This ZIP28,538 |
| Median age | 39.6This ZIP39.6Georgia37.6US 38.9 |
| Median household income | $137,211This ZIP$137,211Georgia$77,353US $80,734 |
| Median home value | $526,100This ZIP$526,100Georgia$303,300US $332,700 |
| Median gross rent | $2,075This ZIP$2,075Georgia$1,393US $1,413 |
| Bachelor's degree or higher | 56.0%This ZIP56.0% |
| Mean commute | 29.8 minThis ZIP29.8 min |
| Population density | 1,431.0 / sq miThis ZIP1,431.0 / sq mi |
Business and tax activity
| Business establishments | 2,515This ZIP2,515 |
|---|---|
| Employees | 22,120This ZIP22,120 |
| Annual payroll | $1,116,340,000This ZIP$1,116,340,000 |
| Tax returns filed | 37,500This ZIP37,500 |
| Total adjusted gross income | $4,827,101,000This ZIP$4,827,101,000 |
Land area
| Land area | 57.68 sq miThis ZIP57.68 sq mi |
|---|---|
| Water area | 0.52 sq miThis ZIP0.52 sq mi |
Counties 30040 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Forsyth County | 97.8% |
| Cherokee County | 2.2% |
Other place names in 30040
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 30040
| ZIP | City | Distance |
|---|---|---|
30028 | Cumming, GA | 4.8 mi |
30041 | Cumming, GA | 4.9 mi |
30004 | Alpharetta, GA | 8.5 mi |
30005 | Alpharetta, GA | 9.6 mi |
30518 | Buford, GA | 10.8 mi |
30024 | Suwanee, GA | 12.1 mi |
30023 | Alpharetta, GA | 12.2 mi |
30009 | Alpharetta, GA | 12.4 mi |
30107 | Ball Ground, GA | 12.4 mi |
30115 | Canton, GA | 12.9 mi |
Find every ZIP code within 10 miles of 30040 →
Questions about this ZIP code
Where is ZIP code 30040?
30040 is in Cumming, Georgia, in Forsyth County, part of the Atlanta-Sandy Springs-Roswell, GA metropolitan area. Its published point location is 34.2234, -84.1764.
What county is 30040 in?
30040 spans 2 counties: Forsyth County and Cherokee County. Most of it falls in Forsyth County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 30040?
Cumming uses area codes 470, 678, 770 and 943, from NANPA's telephone records.
What time zone is 30040 in?
30040 uses America/New_York.
How many people live in 30040?
About 82,532 people live in ZIP code 30040, in 27,727 households, at 1,431.0 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 30040?
$137,211 a year, against $77,353 across Georgia.
What ZIP codes are near 30040?
The closest are 30028 (4.8 mi), 30041 (4.9 mi), 30004 (8.5 mi), 30005 (9.6 mi) and 30518 (10.8 mi).
Is 30040 a PO Box ZIP code?
30040 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “30040 ZIP Code — Cumming, Georgia (Forsyth County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/30040
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/30040.json Underlying data is public domain or openly licensed — sources, vintages and licences.