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/DIAMOND

Diamond ZIP code, Missouri

The ZIP code for Diamond, MO is 64840, and its area code is 417.

USPS city name
1 ZIP code
Population
914
Area code
417

Diamond in numbers

About 914 people live in Diamond, in 336 households. The median household income is $73,587 a year, 4% above the Missouri median of $70,702 (US: $80,734). The median owner-occupied home is valued at $141,400 (39% below the Missouri median), and median gross rent is $863 a month. The median age is 37.3; 17.9% of adults 25 and over hold a bachelor's degree or higher (32.4% across Missouri); the average commute takes 28 minutes.

Population914Diamond914
Households336Diamond336
Median age37.3Diamond37.3Missouri39.0US 38.9
Median household income$73,587Diamond$73,587Missouri$70,702US $80,734
Median home value$141,400Diamond$141,400Missouri$230,300US $332,700
Median gross rent$863Diamond$863Missouri$1,033US $1,413
Bachelor's degree or higher17.9%Diamond17.9%Missouri32.4%US 35.7%
Mean commute27.5 minDiamond27.5 minMissouri23.5 minUS 26.4 min
Population density1,169 / sq miDiamond1,169 / sq mi

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

ZIP codes addressed as Diamond

ZIP codes with the USPS city name Diamond
ZIP City Type Population Median income Median home
64840 Diamond , MO Standard 3,325 $65,000 $225,600

Map of Diamond ZIP codes

64840

The ZIP codes of Diamond, 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 Diamond

The nearest larger towns are Granby (2,745 people, 6.1 mi), Duenweg (1,918 people, 8.2 mi) and Duquesne (2,257 people, 9.3 mi).

Towns near Diamond
TownPopulationDistance
Granby 2,745 6.1 mi
Carthage 15,574 10.6 mi
Neosho 13,224 11.0 mi
Joplin 52,593 11.6 mi
Webb City 13,221 13.0 mi
Oronogo 2,804 15.7 mi
Carl Junction 8,339 17.0 mi
Galena, KS 2,754 18.5 mi
Monett 9,873 22.1 mi
Baxter Springs, KS 3,855 23.2 mi
Anderson 2,685 24.8 mi
Mount Vernon 4,563 28.4 mi

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

Cite this page

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

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