ZIP code · Mercer · Missouri · United States
ZIP code 64661 — Mercer
ZIP code 64661 serves Mercer, Missouri.
- Postal code
- 64661Single source Value from one source, not cross-checked.
- City
- Mercer
- County
- Mercer FIPS 29129
- State
- Missouri
- Country
- United States
- Coordinates
- 40.5169, -93.5242 — precision precise (locality)
View on OpenStreetMap - Population
- 762 (ZCTA, ACS 5-year)
- Population density
- 8 / sq mi
- Land area
- 99.5 sq mi (257.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $53,929
- Per-capita income
- $30,614
- Median age
- 44.3
- Households
- 316
- Housing units
- 456
- Median home value
- $80,000
- Median gross rent
- $550 / month
- Congressional district
- MO-6 (119th Congress)
- USDA hardiness zone
- 5b (-15 to -10 °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 64661 with another ZIP · ZIPs within 25 miles · distance from 64661
Map of ZIP code 64661
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 15°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 34 | 39 | 51 | 63 | 72 | 81 | 86 | 84 | 77 | 65 | 51 | 38 |
| Avg low °F | 15 | 18 | 29 | 39 | 50 | 61 | 65 | 63 | 54 | 42 | 30 | 20 |
| Precip in | 1.1 | 1.2 | 2.2 | 4.2 | 5.0 | 5.6 | 3.9 | 4.3 | 3.8 | 3.3 | 1.9 | 1.4 |
NOAA 1991–2020 climate normals from the nearest station: PRINCETON (8.8 mi) · NOAA NCEI
Places in ZIP 64661
- 4 parks
- 2 playgrounds
- 1 gyms & sports centres
- 2 post offices
- 3 places of worship
- 1 gas stations
- 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