ZIP code · Formoso · Kansas · United States
ZIP code 66942 — Formoso
ZIP code 66942 serves Formoso, Kansas.
- Postal code
- 66942Single source Value from one source, not cross-checked.
- City
- Formoso
- County
- Jewell FIPS 20089
- State
- Kansas
- Country
- United States
- Coordinates
- 39.7795, -97.9889 — precision precise (locality)
View on OpenStreetMap - Population
- 332 (ZCTA, ACS 5-year)
- Population density
- 3 / sq mi
- Land area
- 95.4 sq mi (247.1 km²) (ZCTA, ACS 5-year)
- Median household income
- $96,250
- Per-capita income
- $40,785
- Median age
- 26.7
- Households
- 115
- Housing units
- 156
- Congressional district
- KS-1 (119th Congress)
- USDA hardiness zone
- 6a (-10 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
- 785Telephone 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 66942 with another ZIP · ZIPs within 25 miles · distance from 66942
Map of ZIP code 66942
Climate — monthly normals
Warmest month Jul (avg high 92°F), coldest Jan (avg low 18°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 39 | 44 | 56 | 66 | 77 | 87 | 92 | 90 | 82 | 69 | 54 | 42 |
| Avg low °F | 18 | 21 | 31 | 41 | 54 | 64 | 69 | 66 | 57 | 44 | 31 | 21 |
| Precip in | 0.7 | 0.9 | 1.6 | 2.5 | 4.5 | 4.8 | 4.8 | 3.3 | 2.5 | 2.0 | 1.2 | 1.0 |
NOAA 1991–2020 climate normals from the nearest station: COURTLAND (5.0 mi) · NOAA NCEI
Places in ZIP 66942
- 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