ZIP code · Armstrong · Missouri · United States
ZIP code 65230 — Armstrong
ZIP code 65230 serves Armstrong, Missouri.
- Postal code
- 65230Single source Value from one source, not cross-checked.
- City
- Armstrong
- County
- Howard FIPS 29089
- State
- Missouri
- Country
- United States
- Coordinates
- 39.2566, -92.7090 — precision precise (locality)
View on OpenStreetMap - Population
- 521 (ZCTA, ACS 5-year)
- Population density
- 8 / sq mi
- Land area
- 65.5 sq mi (169.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $42,000
- Per-capita income
- $30,651
- Median age
- 34.6
- Households
- 204
- Housing units
- 273
- Median home value
- $61,700
- Congressional districts
- MO-4 (also MO-6) (119th Congress)
- USDA hardiness zone
- 6b (-5 to 0 °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
- 660Telephone 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 65230 with another ZIP · ZIPs within 25 miles · distance from 65230
Map of ZIP code 65230
Climate — monthly normals
Warmest month Jul (avg high 88°F), coldest Jan (avg low 18°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 43 | 54 | 65 | 75 | 84 | 88 | 87 | 80 | 68 | 54 | 42 |
| Avg low °F | 18 | 22 | 32 | 43 | 54 | 64 | 67 | 65 | 56 | 44 | 33 | 24 |
| Precip in | 1.5 | 1.8 | 2.8 | 4.0 | 5.2 | 5.5 | 4.2 | 3.6 | 3.7 | 3.5 | 2.4 | 1.6 |
NOAA 1991–2020 climate normals from the nearest station: SALISBURY (12.8 mi) · NOAA NCEI
Places in ZIP 65230
- 2 schools
- 2 places of worship
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