ZIP code · Diamond · Missouri · United States
ZIP code 64840 — Diamond
ZIP code 64840 serves Diamond, Missouri.
- Postal code
- 64840Single source Value from one source, not cross-checked.
- City
- Diamond
- County
- Newton FIPS 29145
- State
- Missouri
- Country
- United States
- Coordinates
- 37.0060, -94.3204 — precision precise (locality)
View on OpenStreetMap - Population
- 3,566 (ZCTA, ACS 5-year)
- Population density
- 69 / sq mi
- Land area
- 52 sq mi (134.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $65,912
- Per-capita income
- $32,813
- Median age
- 39.8
- Households
- 1,313
- Housing units
- 1,397
- Median home value
- $215,200
- Median gross rent
- $715 / month
- Congressional district
- MO-7 (119th Congress)
- USDA hardiness zone
- 7a (0 to 5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 417Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 64840 with another ZIP · ZIPs within 25 miles · distance from 64840
Map of ZIP code 64840
Climate — monthly normals
Warmest month Aug (avg high 90°F), coldest Jan (avg low 23°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 46 | 51 | 60 | 69 | 76 | 85 | 90 | 90 | 83 | 72 | 59 | 49 |
| Avg low °F | 23 | 26 | 35 | 44 | 54 | 63 | 67 | 65 | 57 | 45 | 35 | 26 |
| Precip in | 1.9 | 2.2 | 3.5 | 5.2 | 6.7 | 5.5 | 3.8 | 3.5 | 4.5 | 3.9 | 3.6 | 2.5 |
NOAA 1991–2020 climate normals from the nearest station: DIAMOND 2W (2.4 mi) · NOAA NCEI
Places in ZIP 64840
- 1 schools
- 1 parks
- 2 playgrounds
- 4 places of worship
- 1 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page