Diamond, MO ZIP code
The ZIP code for Diamond, Missouri is 64840. It is in Newton County.
- Population in these ZIPs
- 3,325
- Avg. median income
- $65,000population-weighted
- Typical home value
- $248,100population-weighted
- Metro area
- Joplin, MO-KS
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Diamond, MO ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 64840 | 3,325 | $65,000 | $248,100 |
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 Diamond
Frequently asked questions
What is the ZIP code for Diamond, MO?
The ZIP code for Diamond, MO is 64840.
What county is Diamond, Missouri in?
Diamond ZIP codes are in Newton County.