ZIP code · Platteville · Wisconsin · United States

ZIP code 53818 — Platteville

ZIP code 53818 serves Platteville, Wisconsin.

Postal code
53818
Single source Value from one source, not cross-checked.
City
Platteville
County
Grant FIPS 55043
State
Wisconsin
Country
United States
Coordinates
42.7393, -90.4854 — precision precise (locality)
View on OpenStreetMap
Population
15,843 (ZCTA, ACS 5-year)
Population density
103 / sq mi
Land area
154.4 sq mi (399.8 km²) (ZCTA, ACS 5-year)
Median household income
$55,615
Per-capita income
$28,699
Median age
24.8
Households
5,708
Housing units
6,146
Median home value
$214,200
Median gross rent
$887 / month
Congressional districts
WI-3 (also WI-2) (119th Congress)
USDA hardiness zone
5a (-20 to -15 °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
608
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 82°F), coldest Jan (avg low 10°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F263143576978828073604532
Avg low °F101425354758626051392817
Precip in1.21.52.14.04.76.05.34.24.32.82.31.8

NOAA 1991–2020 climate normals from the nearest station: PLATTEVILLE (1.2 mi) · NOAA NCEI

Places in ZIP 53818

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