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: 518
  • Single Family Addresses: 9,447
  • Multi-Family Addresses: 1,624
  • 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.


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Saint Louis, MO 63121 Data & Demographics (As of July 1, 2017)


Total Population 26,873
Daytime Population: Workers 16,016
Daytime Population: Residents 16,113
Total Daytime Population (TDP) 32,129
Ratio TDP/Total Population1 1.20
Population in Households 26,211
Population in Familes 20,041
Population in Group Qrtrs 662
Population Density2 3,632
Diversity Index3 31


Median Household Income $34,300
Average Household Income $48,308
Per Capita Income $20,048


Total Housing Units 12,857 (100%)
Owner Occupied HU 5,647 (43.9%)
Renter Occupied HU 5,224 (40.6%)
Vacant Housing Units 1,986 (15.4%)
Median Home Value $85,765
Average Home Value $108,536


Total Households 10,871
Average Household Size 2.41
Family Households 6,488
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population -0.21% -0.07%
Households -0.24% -0.1%
Families -0.45% -0.24%
Median Household Income   1.24%
Per Capita Income   2.3%

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

The table below compares 63121 to the other 1,012 ZIP Codes in Missouri by rank and percentile using July 1, 2017 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 # 57 94th
Population Density # 39 96th
Diversity Index # 160 84th
Median Household Income # 880 13th
Per Capita Income # 765 25th

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

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