US Gazetteer > Missouri Gazetteer > Missouri ZIP Codes > Saint Louis, MO 63123

City/Town Names Most Popular Resources Current Weather & 7-Day Forecast 
Preferred Name, USPS
Saint Louis, MO 63123
Acceptable Alternative
Affton, MO 63123

Saint Louis MO MLS real estate listings Search the MLS in Saint Louis, MO

Property & neighborhood reports Property & Neighborhood Reports

Apartments in/near Saint Louis MO Apartments | Job Search

background checks Instant Background Checks
Weather forecast ZIP Code 63123

ZIP Code 63123 has segments in 2 Counties (Saint Louis, Saint Louis City).

The 63123 ZIP Code is centered1 in Saint Louis County at latitude 38.544 and longitude -90.318 (Panoramio Photos). It is a standard type ZIP Code. Saint Louis County is in the Central Time Zone (UTC -6 hours) and observes daylight savings time.

The population in ZIP Code Tabulation Area (ZCTA) 63123 was 49,680 with 22,749 housing units; a land area land area of 12.37 sq. miles; a water area of 0 sq. miles; and a population density of 4,016.35 people per sq. mile for Census 2000. Demographic Profile

Saint Louis, MO 63123 Map (Marker is ZIP Code Centroid)

Local Search, 63123 ZIP Code| Distance & Driving Directions

Nearby Cities, Towns & Census Designated Places

Affton, MO (< 0.1 mile)
Wilbur Park, MO (< 0.1 mile)
Saint George, MO (< 0.1 mile)
Lakeshire, MO (1.4 miles WSW)
Marlborough, MO (1.9 miles NNW)
Grantwood Village, MO (1.9 miles WNW)
Green Park, MO (1.9 miles SW)
Bella Villa, MO (1.9 miles E)
Concord, MO (2.4 miles WSW)
Ivory, MO (2.4 miles ESE)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Grantwood, MO (1.4 miles WNW)
Jefferson Barracks, MO (3.6 miles SE)
Dutchtown, MO (4.7 miles ENE)
Mount Pleasant, MO (4.9 miles ENE)
Hi-Pointe, MO (5.8 miles N)
Tower Grove East, MO (6 miles NE)
Cheltenham, MO (6 miles NNE)
Clayton-Tamm, MO (6 miles NNE)
Marina Villa, MO (6.1 miles ENE)
Shaw, MO (6.1 miles NE)

ZIP Codes - Key Concepts

  1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
  2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
  3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
  4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
  5. ZIP Codes are only loosely tied to cities.

1 Keeping the above key concepts in mind, what we informally refer to as the "center" of a ZIP Code is most often actually the centroid of a polygon.