ZIP Code 52172 — Waukon, IA
52172 is a standard (street delivery) ZIP code serving Waukon, Iowa, in Allamakee 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 52172 at a glance
| ZIP code | 52172 |
|---|---|
| Primary city | Waukon |
| State | Iowa (IA) |
| County | Allamakee FIPS 19005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 5,877 |
| Coordinates | 43.271170, -91.483820 |
How ZIP+4 works in 52172
The four digits after the hyphen encode a delivery segment inside 52172. 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 52172 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 52172.
| ZIP | City | Distance |
|---|---|---|
| 52170 | Waterville, IA | 9.5 mi |
| 52151 | Lansing, IA | 11.5 mi |
| 52162 | Postville, IA | 11.6 mi |
| 52140 | Dorchester, IA | 12 mi |
| 52159 | Monona, IA | 14.6 mi |
| 52133 | Castalia, IA | 14.6 mi |
| 52160 | New Albin, IA | 15.1 mi |
| 52156 | Luana, IA | 15.1 mi |
| 52101 | Decorah, IA | 15.3 mi |
| 52146 | Harpers Ferry, IA | 15.6 mi |
| 52161 | Ossian, IA | 16.9 mi |
| 55931 | Eitzen, MN | 17.3 mi |
Questions about 52172
What is the ZIP+4 code for 52172?
52172 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 52172, you need to look up a specific street address to get them.
What city is 52172?
52172 is assigned to Waukon, Iowa, in Allamakee 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.