ZIP Code 52353 — Washington, IA
52353 is a standard (street delivery) ZIP code serving Washington, Iowa, in Washington 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 52353 at a glance
| ZIP code | 52353 |
|---|---|
| Primary city | Washington |
| State | Iowa (IA) |
| County | Washington FIPS 19183 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 9,241 |
| Coordinates | 41.299230, -91.715960 |
How ZIP+4 works in 52353
The four digits after the hyphen encode a delivery segment inside 52353. 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 52353 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 52353.
| ZIP | City | Distance |
|---|---|---|
| 52359 | West Chester, IA | 6.2 mi |
| 52201 | Ainsworth, IA | 9 mi |
| 52540 | Brighton, IA | 11.2 mi |
| 52621 | Crawfordsville, IA | 11.4 mi |
| 52654 | Wayland, IA | 11.5 mi |
| 52248 | Keota, IA | 12 mi |
| 52356 | Wellman, IA | 13.9 mi |
| 52327 | Riverside, IA | 14.1 mi |
| 52647 | Olds, IA | 14.4 mi |
| 52247 | Kalona, IA | 14.9 mi |
| 52585 | Richland, IA | 16.1 mi |
| 52652 | Swedesburg, IA | 16.2 mi |
Questions about 52353
What is the ZIP+4 code for 52353?
52353 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 52353, you need to look up a specific street address to get them.
What city is 52353?
52353 is assigned to Washington, Iowa, in Washington 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.