Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/MO/COUNTY/IRON

Iron County, MO ZIP codes

There are 9 ZIP codes in Iron County, MO, in 9 towns, from 63620 to 65439. The largest are 63650 (Ironton), 63620 (Annapolis) and 63621 (Arcadia).

The county seat is Ironton.

ZIP codes
9
Towns
9
County seat
Ironton
County FIPS
29093
Population
9,446
Median household income
$48,850
Land area
550 sq mi

Iron County ZIP codes by town

Ironton (county seat)
63650

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Iron County ZIP codes

The ZIP codes of Iron County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Iron County in numbers

About 9,446 people live in Iron County, in 3,861 households, the 89th most populous of Missouri's 115 counties. The median household income is $48,850 a year, 31% below the Missouri median of $70,702 (US: $80,734). The median owner-occupied home is valued at $119,300 (48% below the Missouri median), and median gross rent is $664 a month. The median age is 44.8; 19.0% of adults 25 and over hold a bachelor's degree or higher (32.4% across Missouri); the average commute takes 27 minutes.

Population9,446Iron9,446
Households3,861Iron3,861
Median age44.8Iron44.8Missouri39.0US 38.9
Median household income$48,850Iron$48,850Missouri$70,702US $80,734
Median home value$119,300Iron$119,300Missouri$230,300US $332,700
Median gross rent$664Iron$664Missouri$1,033US $1,413
Bachelor's degree or higher19.0%Iron19.0%Missouri32.4%US 35.7%
Mean commute26.9 minIron26.9 minMissouri23.5 minUS 26.4 min
Population density17 / sq miIron17 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Iron County

Largest towns in Iron County
TownZIP codesPopulation
Ironton 1 1,692
Belleview 1 895
Pilot Knob 1 653
Arcadia 1 586
Middle Brook 1 576
Annapolis 1 427
Des Arc 1 181
Bixby 1 55
Vulcan 1 24

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Iron County.

Not sure you are in Iron County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Iron County, with figures

ZIP codes in Iron County
ZIP City Type Population Median income Median home
63620 Annapolis , MO Standard 1,036 $42,426 $202,600
63621 Arcadia , MO Standard 1,632 $87,825 $175,300
63623 Belleview , MO Standard 895 $44,844 $140,600
63636 Des Arc , MO Standard 446 $65,000 $65,400
63650 Ironton , MO Standard 3,600 $50,183 $123,100
63656 Middle Brook , MO Standard 576 $47,181 $101,900
63663 Pilot Knob , MO Standard 649 $44,750 $108,500
63675 Vulcan , MO Standard 24 $16,250 $562,500
65439 Bixby , MO Standard 55 $21,492 —

Cite this page

zipcodes.pro. “Iron County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/mo/county/iron

Underlying data is public domain or openly licensed — sources, vintages and licences.