ZIP Code 52207 — Baldwin, IA
52207 is a standard (street delivery) ZIP code serving Baldwin, Iowa, in Jackson 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 52207 at a glance
| ZIP code | 52207 |
|---|---|
| Primary city | Baldwin |
| State | Iowa (IA) |
| County | Jackson FIPS 19097 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 256 |
| Coordinates | 42.092860, -90.830000 |
How ZIP+4 works in 52207
The four digits after the hyphen encode a delivery segment inside 52207. 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 52207 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 52207.
| ZIP | City | Distance |
|---|---|---|
| 52309 | Monmouth, IA | 3.6 mi |
| 52060 | Maquoketa, IA | 7.7 mi |
| 52321 | Onslow, IA | 8.5 mi |
| 52362 | Wyoming, IA | 9.1 mi |
| 52254 | Lost Nation, IA | 9.8 mi |
| 52323 | Oxford Junction, IA | 9.8 mi |
| 52030 | Andrew, IA | 12.9 mi |
| 52212 | Center Junction, IA | 13.3 mi |
| 52037 | Delmar, IA | 13.5 mi |
| 52032 | Bernard, IA | 13.6 mi |
| 52079 | Zwingle, IA | 14.6 mi |
| 52033 | Cascade, IA | 15.6 mi |
Questions about 52207
What is the ZIP+4 code for 52207?
52207 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 52207, you need to look up a specific street address to get them.
What city is 52207?
52207 is assigned to Baldwin, Iowa, in Jackson 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.