ZIP code · Saint Louis · Missouri · United States

ZIP code 63140 — Saint Louis

ZIP code 63140 serves Saint Louis, Missouri.

Postal code
63140
Single source Value from one source, not cross-checked.
City
Saint Louis
County
St. Louis FIPS 29189
State
Missouri
Country
United States
Coordinates
38.7375, -90.3265 — precision estimated (postal-area centroid)
View on OpenStreetMap
Population
350 (ZCTA, ACS 5-year)
Population density
667 / sq mi
Land area
0.5 sq mi (1.4 km²) (ZCTA, ACS 5-year)
Median household income
$43,438
Per-capita income
$26,812
Median age
24.3
Households
169
Housing units
211
Median home value
$84,000
Median gross rent
$833 / month
Congressional district
MO-1 (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
314, 557
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 90°F), coldest Jan (avg low 24°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F404657687786908881695645
Avg low °F242837475867716961493729
Precip in2.62.23.54.74.84.53.93.43.03.13.42.5

NOAA 1991–2020 climate normals from the nearest station: ST LOUIS LAMBERT INTL AP (2.7 mi) · NOAA NCEI

Places in ZIP 63140

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