ZIP Code 50161 — Maxwell, IA
50161 is a standard (street delivery) ZIP code serving Maxwell, Iowa, in Polk 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 50161 at a glance
| ZIP code | 50161 |
|---|---|
| Primary city | Maxwell |
| State | Iowa (IA) |
| County | Polk FIPS 19153 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 2,296 |
| Coordinates | 41.847640, -93.399140 |
How ZIP+4 works in 50161
The four digits after the hyphen encode a delivery segment inside 50161. 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 50161 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 50161.
| ZIP | City | Distance |
|---|---|---|
| 50055 | Collins, IA | 6.2 mi |
| 50046 | Cambridge, IA | 7 mi |
| 50073 | Elkhart, IA | 7.5 mi |
| 50168 | Mingo, IA | 8.1 mi |
| 50035 | Bondurant, IA | 9 mi |
| 50127 | Ira, IA | 10.7 mi |
| 50007 | Alleman, IA | 10.8 mi |
| 50124 | Huxley, IA | 10.9 mi |
| 50234 | Rhodes, IA | 11.7 mi |
| 50021 | Ankeny, IA | 12.3 mi |
| 50028 | Baxter, IA | 12.9 mi |
| 50244 | Slater, IA | 13 mi |
Questions about 50161
What is the ZIP+4 code for 50161?
50161 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 50161, you need to look up a specific street address to get them.
What city is 50161?
50161 is assigned to Maxwell, Iowa, in Polk 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.