ZIP Code 66434 — Hiawatha, KS
66434 is a standard (street delivery) ZIP code serving Hiawatha, Kansas, in Brown 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 66434 at a glance
| ZIP code | 66434 |
|---|---|
| Primary city | Hiawatha |
| State | Kansas (KS) |
| County | Brown FIPS 20013 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 4,740 |
| Coordinates | 39.867310, -95.546790 |
How ZIP+4 works in 66434
The four digits after the hyphen encode a delivery segment inside 66434. 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 66434 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 66434.
| ZIP | City | Distance |
|---|---|---|
| 66532 | Robinson, KS | 9.5 mi |
| 66515 | Morrill, KS | 9.9 mi |
| 66425 | Fairview, KS | 10.1 mi |
| 66527 | Powhattan, KS | 10.9 mi |
| 66094 | White Cloud, KS | 12.5 mi |
| 66439 | Horton, KS | 14.6 mi |
| 68431 | Rulo, NE | 15.1 mi |
| 66424 | Everest, KS | 15.2 mi |
| 66035 | Highland, KS | 15.2 mi |
| 66534 | Sabetha, KS | 15.4 mi |
| 68433 | Salem, NE | 16.4 mi |
| 68355 | Falls City, NE | 17.2 mi |
Questions about 66434
What is the ZIP+4 code for 66434?
66434 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 66434, you need to look up a specific street address to get them.
What city is 66434?
66434 is assigned to Hiawatha, Kansas, in Brown 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.