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Troy, OH ZIP codes

Troy, Ohio has 2 ZIP codes, including 1 PO Box ZIP. They are in Miami County.

Population in these ZIPs
37,565
Avg. median income
$75,700population-weighted
Typical home value
$281,900population-weighted
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ZIP codes within 10 miles

Troy, OH ZIP codes list

Troy, OH ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
45373Miami County37,565$75,742$281,900
45374 PO BoxMiami County———

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 near Troy

Frequently asked questions

What is the ZIP code for Troy, OH?

Troy, OH has 2 ZIP codes: 45373 and 45374.

What county is Troy, Ohio in?

Troy ZIP codes are in Miami County.

Which Troy ZIP codes are PO Boxes?

45374 is a PO Box or single-organization ZIP code; it has no residential delivery area.