ZIP code · Troy · Ohio · United States

ZIP code 45374 — Troy

ZIP code 45374 serves Troy, Ohio.

Postal code
45374
Single source Value from one source, not cross-checked.
City
Troy
County
Miami
State
Ohio
Country
United States
Coordinates
40.0400, -84.2298 — 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/New_York (UTC−5 / UTC−4 DST)
Area code
937
Telephone 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.

Climate — monthly normals

Warmest month Jul (avg high 84°F), coldest Jan (avg low 21°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F364151647481848378665240
Avg low °F212332415261656255443425
Precip in3.02.33.23.94.44.24.23.63.02.93.23.0

NOAA 1991–2020 climate normals from the nearest station: PIQUA WWTP (6.3 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