ZIP code · Valley Falls · Kansas · United States

ZIP code 66088 — Valley Falls

ZIP code 66088 serves Valley Falls, Kansas.

Postal code
66088
Single source Value from one source, not cross-checked.
City
Valley Falls
County
Jefferson FIPS 20087
State
Kansas
Country
United States
Coordinates
39.3484, -95.4670 — precision precise (locality)
View on OpenStreetMap
Population
2,723 (ZCTA, ACS 5-year)
Population density
23 / sq mi
Land area
120 sq mi (310.9 km²) (ZCTA, ACS 5-year)
Median household income
$73,125
Per-capita income
$36,956
Median age
44.2
Households
1,089
Housing units
1,210
Median home value
$186,700
Median gross rent
$738 / month
Congressional districts
KS-1 (also KS-2) (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
785
Telephone 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.

Climate — monthly normals

Warmest month Jul (avg high 91°F), coldest Jan (avg low 18°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F394556677686918981705542
Avg low °F182032425464686556453323
Precip in0.91.32.33.85.64.93.94.73.73.01.91.6

NOAA 1991–2020 climate normals from the nearest station: VALLEY FALLS 3 SW (3.3 mi) · NOAA NCEI

Places in ZIP 66088

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