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Miamisburg, OH ZIP codes

Miamisburg, Ohio has 2 ZIP codes, including 1 PO Box ZIP. They are in Montgomery County.

Population in these ZIPs
36,152
Avg. median income
$84,900population-weighted
Typical home value
$262,400population-weighted
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ZIP codes within 10 miles

Miamisburg, OH ZIP codes list

Miamisburg, OH ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
45342Montgomery County36,152$84,907$262,400
45343 PO BoxMontgomery 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 Miamisburg

Frequently asked questions

What is the ZIP code for Miamisburg, OH?

Miamisburg, OH has 2 ZIP codes: 45342 and 45343.

What county is Miamisburg, Ohio in?

Miamisburg ZIP codes are in Montgomery County.

Which Miamisburg ZIP codes are PO Boxes?

45343 is a PO Box or single-organization ZIP code; it has no residential delivery area.