Porter County, Indiana ZIP codes
10 ZIP codes are in Porter County, plus 7 that cross in from neighboring counties. It's part of the Chicago-Naperville-Elgin, IL-IN metro area.
- ZIP codes
- 10
- Population in these ZIPs
- 167,541
- Avg. median income
- $85,900population-weighted
- Cities & towns
- 8
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Porter County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 46301 | Beverly Shores | 650 | $119,948 | $691,000 |
| 46302 | Boone Grove | 29 | $56,875 | $304,500 |
| 46304 | Chesterton | 28,307 | $91,326 | $332,500 |
| 46341 | Hebron | 10,048 | $89,559 | $328,100 |
| 46347 | Kouts | 4,951 | $95,348 | $315,100 |
| 46368 | Portage | 40,301 | $76,368 | $270,600 |
| 46383 | Valparaiso | 42,183 | $76,224 | $346,700 |
| 46384 PO Box | Valparaiso | — | — | — |
| 46385 | Valparaiso | 40,856 | $98,957 | $373,500 |
| 46393 | Wheeler | 216 | $56,250 | $215,700 |
ZIP codes partly in Porter County
These ZIP codes are mostly in a neighboring county but cover part of Porter County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 46307 | Crown Point | Lake County | 71,673 | $107,800 | $360,200 |
| 46342 | Hobart | Lake County | 32,224 | $75,521 | $239,100 |
| 46348 | La Crosse | LaPorte County | 1,217 | $64,375 | $214,600 |
| 46360 | Michigan City | LaPorte County | 43,817 | $59,266 | $233,200 |
| 46390 | Wanatah | LaPorte County | 2,554 | $87,639 | $284,000 |
| 46391 | Westville | LaPorte County | 8,986 | $82,692 | $350,500 |
| 46403 | Gary | Lake County | 10,929 | $45,991 | $149,800 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Porter County
Nearby counties
Frequently asked questions
How many ZIP codes are in Porter County, Indiana?
10 ZIP codes are mainly in Porter County, and 7 more ZIP codes from neighboring areas reach partly into it.
What cities are in Porter County?
ZIP codes in Porter County use the city names Beverly Shores, Boone Grove, Chesterton, Hebron, Kouts, Portage, Valparaiso and Wheeler.
What metro area is Porter County in?
Porter County is part of the Chicago-Naperville-Elgin, IL-IN metropolitan statistical area.