ZIP Code 50066 — Dawson, IA
50066 is a standard (street delivery) ZIP code serving Dawson, Iowa, in Dallas 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 50066 at a glance
| ZIP code | 50066 |
|---|---|
| Primary city | Dawson |
| State | Iowa (IA) |
| County | Dallas FIPS 19049 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 191 |
| Coordinates | 41.805100, -94.227080 |
How ZIP+4 works in 50066
The four digits after the hyphen encode a delivery segment inside 50066. 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 50066 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 50066.
| ZIP | City | Distance |
|---|---|---|
| 50128 | Jamaica, IA | 4.9 mi |
| 50220 | Perry, IA | 5.8 mi |
| 50277 | Yale, IA | 6.4 mi |
| 50235 | Rippey, IA | 8.7 mi |
| 50146 | Linden, IA | 8.7 mi |
| 50216 | Panora, IA | 9.7 mi |
| 50167 | Minburn, IA | 10 mi |
| 50039 | Bouton, IA | 11.4 mi |
| 50026 | Bagley, IA | 12 mi |
| 50233 | Redfield, IA | 13.3 mi |
| 50107 | Grand Junction, IA | 15.9 mi |
| 50276 | Woodward, IA | 16.1 mi |
Questions about 50066
What is the ZIP+4 code for 50066?
50066 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 50066, you need to look up a specific street address to get them.
What city is 50066?
50066 is assigned to Dawson, Iowa, in Dallas 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.