ZIP CodesZIP codes in LaPorte County, Indiana
LaPorte County, Indiana has 13 ZIP codes in this list, from 46340 to 46391. They cover 11 places, among them La Porte, Michigan City, Hanna and Kingsbury.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 46340 | Hanna | 33.2 | 41.409, -86.776 |
| 46345 | Kingsbury | 0.1 | 41.526, -86.700 |
| 46346 | Kingsford Heights | 0.9 | 41.480, -86.692 |
| 46348 | La Crosse | 50.5 | 41.316, -86.868 |
| 46350 | La Porte | 193 | 41.599, -86.708 |
| 46352 | La Porte | no area | 41.499, -86.710 |
| 46360 | Michigan City | 76.6 | 41.698, -86.870 |
| 46361 | Michigan City | no area | 41.703, -86.915 |
| 46365 | Mill Creek | 22.7 | 41.609, -86.544 |
| 46371 | Rolling Prairie | 37.6 | 41.723, -86.584 |
| 46382 | Union Mills | 49.0 | 41.460, -86.835 |
| 46390 | Wanatah | 49.1 | 41.385, -86.876 |
| 46391 | Westville | 39.7 | 41.536, -86.901 |
The ZIP code areas of LaPorte County add up to about 553 square miles of land (1,432 sq km) as the Census Bureau draws them. The largest is 46350 (La Porte), with 193 square miles.
Places with more than one code here: La Porte (2 codes), Michigan City (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Hanna, IN 46340.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.