Saint Louis, MO 63121 ZIP Code Profile


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ZIP Code 63121: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Saint Louis, MO 63121

Acceptable Alternative
Normandy, MO 63121

Not Acceptable, USPS
Bel Nor, MO 63121
Bel Ridge, MO 63121
Bellerive, MO 63121
Beverly Hills, MO 63121
Northwoods, MO 63121
Pasadena Hills, MO 63121
Pasadena Park, MO 63121
Velda Village Hills, MO 63121

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 524
  • Single Family Addresses: 9,429
  • Multi-Family Addresses: 1,526
  • County: Saint Louis County
  • Centroid: Latitude 38.704, Longitude -90.299
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


63121 ZIP Code Map

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Saint Louis, MO 63121 Data & Demographics (As of July 1, 2015)


Total Population 25,517
Population in Households 24,928
Population in Familes 19,216
Population in Group Qrtrs 589
Population Density1 3,484
Diversity Index2 30


Total Households 10,427
Average Household Size 2.39
Family Households 6,268
Average Family Size 3


Total Housing Units 12,320 (100%)
Owner Occupied HU 5,629 (45.7%)
Renter Occupied HU 4,798 (38.9%)
Vacant Housing Units 1,893 (15.4%)
Median Home Value $84,440
Average Home Value $103,611


Median Household Income $32,559
Average Household Income $44,415
Per Capita Income $18,391
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.43% -0.18%
Households -0.3% -0.15%
Families -0.48% -0.27%
Median Household Income   2.69%
Per Capita Income   2.74%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Saint Louis, MO 63121 - Peer Comparisons by Rank and Percentile

The table below compares 63121 to the other 1,004 ZIP Codes in Missouri by rank and percentile using July 1, 2015 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 61 94th
Population Density1 # 41 96th
Diversity Index2 # 156 85th
Median Household Income # 843 16th
Per Capita Income # 761 24th

Additional comparisons and rankings can be made with a VERY EASY TO USE Missouri Census Data Comparison Tool.