ZIP Code 46383 — Valparaiso, IN
46383 is a standard (street delivery) ZIP code serving Valparaiso, Indiana, in Porter 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 46383 at a glance
| ZIP code | 46383 |
|---|---|
| Primary city | Valparaiso |
| State | Indiana (IN) |
| County | Porter FIPS 18127 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 42,183 |
| Coordinates | 41.458380, -87.001560 |
How ZIP+4 works in 46383
The four digits after the hyphen encode a delivery segment inside 46383. 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 46383 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.
Other ZIP codes in Valparaiso
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 46383.
| ZIP | City | Distance |
|---|---|---|
| 46385 | Valparaiso, IN | 6.3 mi |
| 46390 | Wanatah, IN | 7.2 mi |
| 46391 | Westville, IN | 7.5 mi |
| 46302 | Boone Grove, IN | 9.3 mi |
| 46393 | Wheeler, IN | 9.4 mi |
| 46347 | Kouts, IN | 10.6 mi |
| 46304 | Chesterton, IN | 11 mi |
| 46382 | Union Mills, IN | 12.4 mi |
| 46348 | La Crosse, IN | 12.5 mi |
| 46368 | Portage, IN | 12.7 mi |
| 46340 | Hanna, IN | 13.1 mi |
| 46342 | Hobart, IN | 13.2 mi |
Questions about 46383
What is the ZIP+4 code for 46383?
46383 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 46383, you need to look up a specific street address to get them.
What city is 46383?
46383 is assigned to Valparaiso, Indiana, in Porter 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.