🇺🇸 United States ZIP Code

STANDARD

63124

Saint Louis

ZIP Code 63124 is a standard zip code serving Saint Louis, Saint Louis, Missouri (MO), in St. Louis County, United States. It has an estimated population of 10,417 with a median household income of $118,816. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Missouri (MO)
County: St. Louis
City: Saint Louis
Timezone: America/Chicago

Coordinates

Latitude: 38.637200
Longitude: -90.377600

Geographic Details

Land Area: 8.75 mi²
Population Density: 1190.0 people per mi² (80th percentile)
Bounding Box: 38.662499°N, 38.609238°S, -90.347893°E, -90.405948°W

With 10,417 residents spread across 8.75 square miles, this area has a population density of 1190.0 people per square mile.

Demographics

10,417

Population

70th percentile

$118,816

Median Income

95th percentile

$656,800

Median Home Value

95th percentile

8.75 mi²

Land Area

The median household income in 63124 is $118,816, and the median home value is $656,800. This places the area in the top 25% nationally for household income.

Housing

4,935

Total Units

4,493

Occupied Units

91.0%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Saint Louis, MO.

63101

Saint Louis

63102

Saint Louis

63103

Saint Louis

63104

Saint Louis

63105

Saint Louis

63106

Saint Louis

63107

Saint Louis

63108

Saint Louis

63109

Saint Louis

63110

Saint Louis

Similar ZIP Codes in Missouri

ZIP codes with similar median household income in Missouri.

63040

Grover

$108,655

64113

Kansas City

$113,536

63141

Saint Louis

$102,708

64082

Lees Summit

$104,975

63038

Glencoe

$106,513

63131

Saint Louis

$132,500

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.