Porter County, IN ZIP codes
There are 10 ZIP codes in Porter County, IN, in 8 towns, from 46301 to 46393. The largest are 46385 (Valparaiso), 46383 (Valparaiso) and 46368 (Portage).
The county seat is Valparaiso.
- ZIP codes
- 10
- Towns
- 8
- County seat
- Valparaiso
- County FIPS
18127- State
- Indiana
- Population
- 174,818
- Median household income
- $87,972
- Land area
- 418 sq mi
- Area code
- 219
- Metro area
- Chicago-Naperville-Elgin
Porter County ZIP codes by town
- Valparaiso (county seat)
- 46383, 46384, 46385
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Porter County ZIP codes
The ZIP codes of Porter County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Porter County in numbers
About 174,818 people live in Porter County, in 68,639 households, the 10th most populous of Indiana's 92 counties. The median household income is $87,972 a year, 22% above the Indiana median of $71,957 (US: $80,734). The median owner-occupied home is valued at $281,500 (29% above the Indiana median), and median gross rent is $1,219 a month. The median age is 40.8; 31.1% of adults 25 and over hold a bachelor's degree or higher (29.5% across Indiana); the average commute takes 28 minutes.
| Population | 174,818 |
|---|---|
| Households | 68,639 |
| Median age | 40.8 |
| Median household income | $87,972 |
| Median home value | $281,500 |
| Median gross rent | $1,219 |
| Bachelor's degree or higher | 31.1% |
| Mean commute | 28.4 min |
| Population density | 418 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Porter County
| Town | ZIP codes | Population |
|---|---|---|
| Portage | 1 | 38,082 |
| Valparaiso | 3 | 34,733 |
| Chesterton | 1 | 14,446 |
| Hebron | 1 | 3,976 |
| Kouts | 1 | 2,372 |
| Beverly Shores | 1 | 650 |
| Wheeler | 1 | 283 |
| Boone Grove | 1 | 30 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Porter County.
Not sure you are in Porter County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Porter County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
46301 | Beverly Shores , IN | Standard | 650 | $119,948 | $606,900 |
46302 | Boone Grove , IN | Standard | 29 | $56,875 | $304,500 |
46304 | Chesterton , IN | Standard | 28,307 | $91,326 | $293,100 |
46341 | Hebron , IN | Standard | 10,048 | $89,559 | $269,300 |
46347 | Kouts , IN | Standard | 4,951 | $95,348 | $255,400 |
46368 | Portage , IN | Standard | 40,301 | $76,368 | $227,100 |
46383 | Valparaiso , IN | Standard | 42,183 | $76,224 | $279,900 |
46384 | Valparaiso , IN | No street area | — | — | — |
46385 | Valparaiso , IN | Standard | 40,856 | $98,957 | $331,700 |
46393 | Wheeler , IN | Standard | 216 | $56,250 | $143,600 |
Cite this page
zipcodes.pro. “Porter County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/in/county/porter
Underlying data is public domain or openly licensed — sources, vintages and licences.