ZIP code · Summerfield · Kansas · United States

ZIP code 66541 — Summerfield

ZIP code 66541 serves Summerfield, Kansas.

Postal code
66541
Single source Value from one source, not cross-checked.
City
Summerfield
County
Marshall FIPS 20117
State
Kansas
Country
United States
Coordinates
39.9798, -96.3279 — precision precise (locality)
View on OpenStreetMap
Population
259 (ZCTA, ACS 5-year)
Population density
5 / sq mi
Land area
50 sq mi (129.6 km²) (ZCTA, ACS 5-year)
Median household income
$42,500
Per-capita income
$21,619
Median age
61.1
Households
108
Housing units
117
Median home value
$84,500
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
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 87°F), coldest Jan (avg low 15°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F353953637383878578665139
Avg low °F151829395262656353412920
Precip in0.61.02.13.24.34.03.73.42.52.61.81.3

NOAA 1991–2020 climate normals from the nearest station: BAILEYVILLE (12.8 mi) · NOAA NCEI

Places in ZIP 66541

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