ZIP code · Saint Germain · Wisconsin · United States

ZIP code 54558 — Saint Germain

ZIP code 54558 serves Saint Germain, Wisconsin.

Postal code
54558
Single source Value from one source, not cross-checked.
City
Saint Germain
County
Vilas FIPS 55125
State
Wisconsin
Country
United States
Coordinates
45.9183, -89.4866 — precision precise (locality)
View on OpenStreetMap
Population
2,224 (ZCTA, ACS 5-year)
Population density
51 / sq mi
Land area
43.2 sq mi (111.9 km²) (ZCTA, ACS 5-year)
Median household income
$62,404
Per-capita income
$41,526
Median age
56.9
Households
1,154
Housing units
2,655
Median home value
$234,500
Median gross rent
$856 / month
Congressional district
WI-7 (119th Congress)
USDA hardiness zone
4a (-30 to -25 °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
715 (from the nearest rate centre)
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 75°F), coldest Jan (avg low 1°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F202536496372757366523725
Avg low °F121326405156554734229
Precip in1.41.21.82.83.84.24.33.33.83.41.91.6

NOAA 1991–2020 climate normals from the nearest station: ST GERMAIN (0.2 mi) · NOAA NCEI

Places in ZIP 54558

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