ZIP Code 50635 — Gladbrook, IA
50635 is a standard (street delivery) ZIP code serving Gladbrook, Iowa, in Tama 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 50635 at a glance
| ZIP code | 50635 |
|---|---|
| Primary city | Gladbrook |
| State | Iowa (IA) |
| County | Tama FIPS 19171 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 1,423 |
| Coordinates | 42.198860, -92.698960 |
How ZIP+4 works in 50635
The four digits after the hyphen encode a delivery segment inside 50635. 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 50635 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 50635.
| ZIP | City | Distance |
|---|---|---|
| 50652 | Lincoln, IA | 4.5 mi |
| 50609 | Beaman, IA | 6.1 mi |
| 50632 | Garwin, IA | 8.4 mi |
| 50657 | Morrison, IA | 10.1 mi |
| 50669 | Reinbeck, IA | 10.3 mi |
| 50675 | Traer, IA | 10.5 mi |
| 50621 | Conrad, IA | 11.7 mi |
| 50638 | Grundy Center, IA | 11.9 mi |
| 52342 | Toledo, IA | 12.5 mi |
| 50142 | Le Grand, IA | 13.9 mi |
| 50158 | Marshalltown, IA | 14.6 mi |
| 50148 | Liscomb, IA | 15.2 mi |
Questions about 50635
What is the ZIP+4 code for 50635?
50635 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 50635, you need to look up a specific street address to get them.
What city is 50635?
50635 is assigned to Gladbrook, Iowa, in Tama 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.