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City ZIP codes · Missouri

Cape Girardeau, MO ZIP Codes

3 ZIP codes use the postal name Cape Girardeau, Missouri (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 2 residential and 1 for PO boxes or a single organization. Median household income runs from $38,695 in 63703 to $66,654 in 63701, 1.7 times as much (Census Bureau, ACS 2020-2024). Cape Girardeau's most populous ZIP code is 63701, with 39,345 people (ACS 2020-2024); 15% of its land is in the city of Cape Girardeau.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Cape Girardeau's ZIP codes?

63701: $67k median household income63703: $39k median household income637016370363701: $67k median household income63703: $39k median household income637016370363701: $67k median household income63703: $39k median household income6370163703
The 2 residential ZIP codes named Cape Girardeau, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are Cape Girardeau's ZIP codes?

The highest median household income is in 63701 ($66,654), the lowest in 63703 ($38,695). Home values run from $122,200 in 63703 to $219,800 in 63701.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).

All 2 residential ZIP codes of Cape Girardeau

Residential ZIP codes with the postal name Cape Girardeau, MO, largest first (ACS 2020-2024); sort by any column
County
63701 Cape Girardeau County 39,345 297 $67k $220k
63703 Cape Girardeau County 8,201 635 $39k $122k

Download the 3 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

PO Box and single-organization ZIP codes in Cape Girardeau

1 ZIP code named Cape Girardeau has no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.

Cape Girardeau, MO: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIPCounty
63702Cape Girardeau County

Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.

Which counties do Cape Girardeau's ZIP codes reach?

Cape Girardeau's residential ZIP codes lie in Cape Girardeau County.

Which places do Cape Girardeau's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Cape Girardeau's residential ZIP codes cover Cape Girardeau itself and 2 other places, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

  • Dutchtown census-designated 63701
  • Gordonville 63701

Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).

Which first three digits do Cape Girardeau's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Cape Girardeau starts with 637.

Three-digit prefixes of Cape Girardeau's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Cape Girardeau's
PrefixSectional centerHereAll codes
637 St Louis, MO (SCF 630) 3 42

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.