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Madison County, Missouri ZIP codes

2 ZIP codes are in Madison County, plus 5 that cross in from neighboring counties.

ZIP codes
2
Population in these ZIPs
13,193
Avg. median income
$55,600population-weighted
Cities & towns
2
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ZIP codes in Madison County

ZIP codes in Madison County
ZIP codeCityPopulationMedian incomeTypical home value
63645Fredericktown11,554$54,747$175,800
63655Marquand1,639$61,469$210,100

ZIP codes partly in Madison County

These ZIP codes are mostly in a neighboring county but cover part of Madison County.

ZIP codes partly in Madison County
ZIP codeCityCountyPopulationMedian incomeTypical home value
63620AnnapolisIron County1,036$42,426$162,700
63621ArcadiaIron County1,632$87,825$194,400
63636Des ArcIron County446$65,000$132,900
63650IrontonIron County3,600$50,183$133,200
63964SilvaWayne County733$41,500—

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 and towns in Madison County

Nearby counties

Frequently asked questions

How many ZIP codes are in Madison County, Missouri?

2 ZIP codes are mainly in Madison County, and 5 more ZIP codes from neighboring areas reach partly into it.

What cities are in Madison County?

ZIP codes in Madison County use the city names Fredericktown and Marquand.