ZIP code · Gary · Indiana · United States
ZIP code 46401 — Gary
ZIP code 46401 serves Gary, Indiana.
- Postal code
- 46401Single source Value from one source, not cross-checked.
- City
- Gary
- County
- Lake
- State
- Indiana
- Country
- United States
- Coordinates
- 41.5907, -87.3199 — precision precise (locality)
View on OpenStreetMap - USDA hardiness zone
- 6a (-10 to -5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 219Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 46401 with another ZIP · ZIPs within 25 miles · distance from 46401
Climate — monthly normals
Warmest month Jul (avg high 82°F), coldest Jan (avg low 18°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 32 | 36 | 46 | 57 | 68 | 78 | 82 | 80 | 74 | 62 | 49 | 37 |
| Avg low °F | 18 | 21 | 30 | 40 | 50 | 60 | 64 | 63 | 56 | 45 | 34 | 24 |
| Precip in | 2.2 | 2.0 | 2.3 | 3.5 | 4.3 | 4.3 | 4.0 | 4.1 | 3.6 | 3.8 | 2.8 | 2.3 |
NOAA 1991–2020 climate normals from the nearest station: INDIANA DUNES NL (12.3 mi) · NOAA NCEI
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page