ZIP Code 50843 — Cumberland, IA
50843 is a standard (street delivery) ZIP code serving Cumberland, Iowa, in Cass 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 50843 at a glance
| ZIP code | 50843 |
|---|---|
| Primary city | Cumberland |
| State | Iowa (IA) |
| County | Cass FIPS 19029 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 540 |
| Coordinates | 41.240570, -94.889130 |
How ZIP+4 works in 50843
The four digits after the hyphen encode a delivery segment inside 50843. 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 50843 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 50843.
| ZIP | City | Distance |
|---|---|---|
| 50853 | Massena, IA | 5.9 mi |
| 50847 | Grant, IA | 8.4 mi |
| 50274 | Wiota, IA | 9.9 mi |
| 50837 | Bridgewater, IA | 10.7 mi |
| 51544 | Lewis, IA | 12.4 mi |
| 51535 | Griswold, IA | 12.7 mi |
| 50022 | Atlantic, IA | 13.6 mi |
| 50839 | Carbon, IA | 13.7 mi |
| 51532 | Elliott, IA | 13.7 mi |
| 50020 | Anita, IA | 15.1 mi |
| 50841 | Corning, IA | 17.1 mi |
| 50846 | Fontanelle, IA | 17.3 mi |
Questions about 50843
What is the ZIP+4 code for 50843?
50843 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 50843, you need to look up a specific street address to get them.
What city is 50843?
50843 is assigned to Cumberland, Iowa, in Cass 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.