ZIP Code 52543 — Cedar, IA
52543 is a standard (street delivery) ZIP code serving Cedar, Iowa, in Mahaska 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 52543 at a glance
| ZIP code | 52543 |
|---|---|
| Primary city | Cedar |
| State | Iowa (IA) |
| County | Mahaska FIPS 19123 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 541 |
| Coordinates | 41.200650, -92.517730 |
How ZIP+4 works in 52543
The four digits after the hyphen encode a delivery segment inside 52543. 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 52543 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 52543.
| ZIP | City | Distance |
|---|---|---|
| 52561 | Fremont, IA | 4.2 mi |
| 52566 | Kirkville, IA | 5 mi |
| 52595 | University Park, IA | 7.9 mi |
| 52548 | Chillicothe, IA | 8 mi |
| 52553 | Eddyville, IA | 8.1 mi |
| 52577 | Oskaloosa, IA | 8.9 mi |
| 52534 | Beacon, IA | 9.8 mi |
| 52586 | Rose Hill, IA | 10.4 mi |
| 52550 | Delta, IA | 11.3 mi |
| 52501 | Ottumwa, IA | 12 mi |
| 52563 | Hedrick, IA | 12.6 mi |
| 52568 | Martinsburg, IA | 13.9 mi |
Questions about 52543
What is the ZIP+4 code for 52543?
52543 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 52543, you need to look up a specific street address to get them.
What city is 52543?
52543 is assigned to Cedar, Iowa, in Mahaska 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.