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Diamond town, MO

ZIP Code 64840 — Diamond town, MO Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Map, Quick Facts & Location

Quick Facts

Local time
Population
3,566
Median Income
$65,912
-12% vs US avg
Home Value
$215,200
-38% vs US avg
Median Rent
$427
-63% vs US avg
Median Age
39.8 yrs
+2% vs US avg
Area Code
Congress
Top Ancestry
GermanEnglishPolish
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Location
Coordinates
37.0166, -94.3361
Elevation
1,070 ft
Land Area
50.9 sq mi
Water Area
0.1 sq mi (0% water)

At a glance

Population
3,566
Density
N/A
Median income
$65,912
-12% vs US avg
Home value
$215,200
-38% vs US avg
Median rent
$427
-63% vs US avg
Timezone

Overview of ZIP Code 64840

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What to know about ZIP 64840

ZIP code 64840 covers Diamond, MO in Newton County with a population of about 3,566.

At a glance, the area shows median age of 39.8 (near the U.S. median).

It sits in telephone area code 417; U.S. House district MO-7; the JOPLIN - PITTSBURG media market.

Income and economy in Diamond, MO

Median household income in ZIP 64840 is about $65,912 — about 12% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 9.7%; unemployment rate near 3.3%; 22.3% of adults with a bachelor’s degree or higher (about 11.4 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Manufacturing, Healthcare, and Construction; about 2.1% of workers reporting work-from-home (about 13.1 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 64840

Median home value is about $215,200 — about 38% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $427 (about 63% below the U.S. median rent ($1,163)), and owner-occupancy near 76.6% (about 11.2 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 64840 in Diamond, MO, a household would need roughly $59,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $1,382. That sits below the local median household income ($65,912), suggesting the typical household income is closer to a workable buy-in level under these assumptions. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for Diamond town, MO as Relatively Low (composite score 77.5), which is elevated versus much of the country. The strongest component scores on US5 are flood (80.0) and wildfire (77.3). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Diamond town, MO show little to no average snow and around 46.9 inches of annual precipitation.

IRS migration statistics show a net inflow of about 161 for ZIP 64840 (Diamond town, MO) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport JLN (12.9 miles (20.8 km)) · Missouri Southern State University (8.8 miles (14.2 km)) · George Washington Carver National Monument (2.3 miles (3.7 km)) · VA: Baxter Springs City Soldiers' Lot (23.9 miles (38.5 km))

Full lists and map pins are in the Infrastructure section below.