ZIP Code 58830 — Alamo, ND
58830 is a standard (street delivery) ZIP code serving Alamo, North Dakota, in Williams 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 58830 at a glance
| ZIP code | 58830 |
|---|---|
| Primary city | Alamo |
| State | North Dakota (ND) |
| County | Williams FIPS 38105 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 66 |
| Coordinates | 48.602720, -103.466080 |
How ZIP+4 works in 58830
The four digits after the hyphen encode a delivery segment inside 58830. 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 58830 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.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 58830.
| ZIP | City | Distance |
|---|---|---|
| 58856 | Zahl, ND | 11.9 mi |
| 58795 | Wildrose, ND | 14.6 mi |
| 58730 | Crosby, ND | 19.3 mi |
| 58833 | Ambrose, ND | 20.1 mi |
| 58845 | Grenora, ND | 21 mi |
| 58844 | Fortuna, ND | 23.6 mi |
| 58755 | Mcgregor, ND | 23.8 mi |
| 58849 | Ray, ND | 24.7 mi |
| 58843 | Epping, ND | 25.9 mi |
| 58765 | Noonan, ND | 27 mi |
| 58801 | Williston, ND | 28.8 mi |
| 58852 | Tioga, ND | 28.8 mi |
Questions about 58830
What is the ZIP+4 code for 58830?
58830 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 58830, you need to look up a specific street address to get them.
What city is 58830?
58830 is assigned to Alamo, North Dakota, in Williams 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.