ZIP code 64840: Diamond, MO
64840 is a ZIP code in Diamond, Missouri, mainly in Newton County, part of the Joplin, MO-KS metro area. About 3,325 people live here.
- Population
- 3,325
- Median household income
- $65,000
- Typical home value
- $248,100+5.3% in 12 months
- Median rent
- $705gross, per month
- Median age
- 41.8
- Homeowners
- 72.8%of occupied homes
Shaded: ZIP code 64840's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 64840 details
| City | Diamond |
|---|---|
| State | Missouri |
| County | Newton County (also partly Jasper County) |
| Metro area | Joplin, MO-KS |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 52 sq mi, plus 0.1 sq mi of water |
| Population density | 64 people per sq mi |
| Bachelor's degree or higher | 23.2% of adults 25+ |
| Average commute | 24.4 minutes |
| Center coordinates | 37.02006, -94.34286 |
Median rent in 64840 by bedrooms
| Size | Median gross rent |
|---|---|
| 1 bedroom | $661/mo |
| 2 bedrooms | $1,057/mo |
| 3 bedrooms | $631/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 64840
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 64841 | Duenweg, MO | 5.5 mi | 1,381 |
| 64864 | Saginaw, MO | 6.9 mi | — |
| 64804 | Joplin, MO | 9.3 mi | 37,016 |
| 64844 | Granby, MO | 9.5 mi | 4,796 |
| 64835 | Carterville, MO | 10.3 mi | 2,074 |
| 64802 | Joplin, MO | 10.4 mi | — |
| 64803 | Joplin, MO | 10.4 mi | — |
| 64801 | Joplin, MO | 10.4 mi | 36,287 |
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
Buying a home in 64840?
A typical home in ZIP code 64840 is worth about $248,100 (Zillow Home Value Index). The median household here earns $65,000 a year. See what buying here would cost per month, with Missouri average taxes and insurance filled in.
Monthly payment for a $248,100 homeWhat can a $65,000 income afford?Rental property numbers
About ZIP code 64840
What city is ZIP code 64840?
ZIP code 64840 is in Diamond, MO, in Newton County.
What county is ZIP code 64840 in?
64840 is mainly in Newton County, Missouri, and partly in Jasper County.
What is the population of ZIP code 64840?
About 3,325 people live in ZIP code 64840, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 64840 in?
64840 is in Central Time (UTC−6). It observes daylight saving time.