ZIP code · Cape Girardeau · Missouri · United States

ZIP code 63703 — Cape Girardeau

ZIP code 63703 serves Cape Girardeau, Missouri.

Postal code
63703
Single source Value from one source, not cross-checked.
City
Cape Girardeau
County
Cape Girardeau FIPS 29031
State
Missouri
Country
United States
Coordinates
37.3059, -89.5181 — precision precise (locality)
View on OpenStreetMap
Population
8,494 (ZCTA, ACS 5-year)
Population density
657 / sq mi
Land area
12.9 sq mi (33.5 km²) (ZCTA, ACS 5-year)
Median household income
$36,909
Per-capita income
$24,473
Median age
41.4
Households
3,734
Housing units
4,182
Median home value
$127,300
Median gross rent
$843 / month
Congressional district
MO-8 (119th Congress)
USDA hardiness zone
7a (0 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 codes
573, 235
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 89°F), coldest Jan (avg low 26°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F434858697887898882715746
Avg low °F263037475866696658463730
Precip in3.53.34.75.25.33.83.93.23.63.64.33.6

NOAA 1991–2020 climate normals from the nearest station: CAPE GIRARDEAU MUNI AP (6.3 mi) · NOAA NCEI

Places in ZIP 63703

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