ZIP Code 30040 — Cumming, GA
30040 is a standard (street delivery) ZIP code serving Cumming, Georgia, in Forsyth County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 30040 at a glance
| ZIP code | 30040 |
|---|---|
| Primary city | Cumming |
| State | Georgia (GA) |
| County | Forsyth FIPS 13117 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 82,532 |
| Coordinates | 34.216220, -84.179780 |
How ZIP+4 works in 30040
The four digits after the hyphen encode a delivery segment inside 30040. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 30040 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Other ZIP codes in Cumming
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 30040.
| ZIP | City | Distance |
|---|---|---|
| 30028 | Cumming, GA | 5 mi |
| 30041 | Cumming, GA | 5 mi |
| 30004 | Alpharetta, GA | 8.5 mi |
| 30005 | Alpharetta, GA | 9.3 mi |
| 30518 | Buford, GA | 10.5 mi |
| 30024 | Suwanee, GA | 11.7 mi |
| 30009 | Alpharetta, GA | 11.9 mi |
| 30115 | Canton, GA | 12.6 mi |
| 30107 | Ball Ground, GA | 12.6 mi |
| 30097 | Duluth, GA | 13.2 mi |
| 30022 | Alpharetta, GA | 13.6 mi |
| 30534 | Dawsonville, GA | 15 mi |
Questions about 30040
What is the ZIP+4 code for 30040?
30040 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 30040, you need to look up a specific street address to get them.
What city is 30040?
30040 is assigned to Cumming, Georgia, in Forsyth County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.