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 — CITY/MO/CALEDONIA

Caledonia ZIP code, Missouri

The ZIP code for Caledonia, MO is 63631, and its area code is 573.

USPS city name
1 ZIP code
Population
209
Area code
573

Caledonia in numbers

About 209 people live in Caledonia, in 113 households. The median household income is $60,417 a year, 15% below the Missouri median of $70,702 (US: $80,734). The median owner-occupied home is valued at $55,300 (76% below the Missouri median), and median gross rent is $817 a month. The median age is 56.4; 6.1% of adults 25 and over hold a bachelor's degree or higher (32.4% across Missouri); the average commute takes 61 minutes.

Population209Caledonia209
Households113Caledonia113
Median age56.4Caledonia56.4Missouri39.0US 38.9
Median household income$60,417Caledonia$60,417Missouri$70,702US $80,734
Median home value$55,300Caledonia$55,300Missouri$230,300US $332,700
Median gross rent$817Caledonia$817Missouri$1,033US $1,413
Bachelor's degree or higher6.1%Caledonia6.1%Missouri32.4%US 35.7%
Mean commute61.1 minCaledonia61.1 minMissouri23.5 minUS 26.4 min
Population density1,274 / sq miCaledonia1,274 / sq mi

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

ZIP codes addressed as Caledonia

ZIP codes with the USPS city name Caledonia
ZIP City Type Population Median income Median home
63631 Caledonia , MO Standard 544 $74,211 $127,500

Map of Caledonia ZIP codes

63631

The ZIP codes of Caledonia, MO, 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.

Towns near Caledonia

The nearest larger towns are Irondale (622 people, 7.5 mi), Bismarck (1,508 people, 8.2 mi) and Iron Mountain Lake (781 people, 9.7 mi).

Towns near Caledonia
TownPopulationDistance
Potosi 2,544 11.7 mi
Terre du Lac 2,516 12.8 mi
Park Hills 8,678 15.3 mi
Desloge 4,863 15.8 mi
Bonne Terre 6,683 16.5 mi
Farmington 18,282 18.9 mi
De Soto 6,470 28.4 mi
Fredericktown 4,507 29.2 mi

More nearby: every ZIP code in Washington County · Missouri ZIP codes

Cite this page

zipcodes.pro. “Caledonia, MO ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mo/caledonia

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