ZIP Code 63123: Population, Income, Housing

State: MO
Total population: 49,077 Household income: $77,055 Rent: $1,006

Overview

Total population
49,077
Rent
$1,006
Year built
1960
Household income
$77,055
Per capita income
$44,373
Poverty rate
7.9%
Unemployment rate
N/A
Household size
2.3 persons
Rent over 30% of income
36%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Demographics

State
Missouri
County
St. Louis County
City
Affton
Total population
49,077
Adults over 25
36,224
Total households
21,755
Household size
2.3 persons

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Income & Poverty

Household income
$77,055
Per capita income
$44,373
Poverty rate
7.9%
Unemployment rate
N/A
Rent over 30% of income
36%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Housing

Rent
$1,006
Year built
1960
Households that rent
25.1%
Households that own
74.9%
Rooms per home (all homes)
5.4

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Race

White
82.5%
Black
4%
Asian
4.8%
Two or more races
8%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Ethnicity

Hispanic or Latino
4.1%
Not Hispanic or Latino
95.9%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Commute

Commute rate
23,755 (86.7%)
Commute time to work
24 mins
Work from home
3,631 (13.3%)

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Education

Less than high school
25.1%
High school graduate or GED
24.9%
Some college or associate degree
12.5%
Bachelor’s degree or higher
37.6%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

 

Comparison of ZIP Code 63123 with: St. Louis County, MO St. Louis metro area, MO-IL Missouri United States

ZIP 63123

Total population49,077
Rent$1,006
Year built1960
Household income$77,055
Per capita income$44,373
Poverty rate7.9%
Unemployment rateN/A

St. Louis County, MO

Total population995,569
Rent$1,209
Year built1969
Household income$82,936
Per capita income$51,977
Poverty rate9.8%
Unemployment rate3.3%

St. Louis Metro Area, MO-IL

Total population2,810,850
Rent$1,113
Year built1973
Household income$80,196
Per capita income$45,864
Poverty rate10.5%
Unemployment rate3.7%

Missouri State

Total population6,191,814
Rent$1,033
Year built1978
Household income$70,702
Per capita income$39,695
Poverty rate12.6%
Unemployment rate3.6%

United States

Total population334,922,499
Rent$1,413
Year built1980
Household income$80,734
Per capita income$44,673
Poverty rate12.5%
Unemployment rate4%
Metric ZIP63123 CountySt. Louis, MOMetro AreaSt. Louis metro area, MO-ILStateMissouriCountryUnited States
Total population49,077995,5692,810,8506,191,814334,922,499
Rent$1,006$1,209$1,113$1,033$1,413
Year built19601969197319781980
Household income$77,055$82,936$80,196$70,702$80,734
Per capita income$44,373$51,977$45,864$39,695$44,673
Poverty rate7.9%9.8%10.5%12.6%12.5%
Unemployment rateN/A3.3%3.7%3.6%4%

View the full multi-level comparison →

 

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Summary for 63123

Rent & Income

In 63123, the typical monthly rent is $1,006 and the typical household income is $77,055. Rent here is similar to Missouri, and household income is higher than Missouri. The estimated poverty rate is 7.9%.

Housing & Affordability

This ZIP Code is primarily owner-occupied, with renters accounting for about 25.1% of households. Around 36% of renters are cost-burdened, indicating a moderate level of rent pressure.

Education & Employment

Educational attainment is high, with about 37.6% of adults holding a bachelor’s degree or higher.

 

ZIP 63123 — Rent vs Household Income

 

 

ZIP 63123 — Poverty

 

 

How ZIP 63123 compares in Missouri (47 ZIP Codes)

Metric This ZIP Rank Starts from State range
Rent $1,006 13 / 47 from lower rent $791 – $1,749
Household income $77,055 25 / 47 from higher income $41,154 – $136,385
Poverty rate 7.9% 22 / 47 from lower poverty 3.5% – 34.2%

Rankings are calculated among ZIP Codes in Missouri with total population > 30,000 (year 2024).

 

Detailed Ranking Explanation for ZIP Code 63123

Rent

Rent-wise, this area comes 13th out of 47 ZIP Codes in Missouri. At the state level, values extend from $791 in ZIP 63901 up to $1,749 in ZIP 63304.

Household income

Looking at income levels, ZIP Code 63123 holds the 25th out of 47 ZIP Codes. In Missouri as a whole, the range goes from $41,154 in ZIP 63136 up to $136,385 in ZIP 63122.

Poverty rate

Regarding poverty rate, ZIP Code 63123 ranks 22nd out of 47 ZIP Codes. Statewide, values range from 3.5% in ZIP 63304 up to 34.2% in ZIP 65201.

 

💰 Rent in ZIP Code 63123 (with Utilities)

Estimated Monthly Rent: $1,006 ℹ️ What’s Included:
✅ Base rent, electricity, gas, water/sewer, and heating fuels
❌ Not included: internet, cable TV, renter's insurance, parking

💡 What does this rent estimate mean?

Explanation: This estimate shows what renters typically pay each month for housing — including the apartment or home and essential utilities like heat, water, and electricity.

Included in this number: Rent plus electricity, gas, water/sewer, and heating fuel.

Not included: Internet, cable, parking, renter’s insurance, or furniture rental.

Note: This cost does not depend on the number of people living in the home.

👨‍👧‍👦 Household Income in ZIP Code 63123

Annual Household Income: $77,055

💡 What does Household Income mean?

Definition: This represents the middle value of all household incomes in the ZIP code — half of households earn less, and half earn more.

Includes: wages, salaries, self-employment income, Social Security, pensions, investments, unemployment, public assistance, and rental income.

Does NOT include: capital gains, non-cash benefits (like food stamps), or tax refunds.

Household = any group of people (or a single person) living in the same housing unit.

Example: A couple earning $40,000 and $30,000 together have a household income of $70,000. If that's in the middle of all local incomes, it's the value shown here.

📉 Poverty Rate in ZIP Code 63123

Estimated Rate: 7.9%

💡 What does the Poverty Rate represent?

Definition: The percentage of people in this area living below the federal poverty threshold.

How it works: The threshold is a dollar amount set by the U.S. Census Bureau that varies by family size and age. If a household's income is below that level, everyone in it is included in this rate.

Example: In a town of 10,000 people, if 1,500 have incomes below the poverty line, the poverty rate is 15%.

Note: This statistic only includes people living in households; it does not count those in student housing, military barracks, or nursing homes.

🏘️ Renter vs. Owner Households in ZIP Code 63123

In ZIP Code 63123, households that rent: 5,459 (25.1%)

📊 What does the renter household percentage reveal about this ZIP Code?
Household Type Count Share
Renter-Occupied 5,459 25.1%
Owner-Occupied 16,296 74.9%

Definition: This is the percentage of households that rent their home rather than own it. It includes only occupied housing units.

Why it matters: Areas with a high share of renter households often have younger populations, higher mobility, and different housing needs compared to mostly owner-occupied areas.

Example: If 65% of homes in an area are renter-occupied, it means 65 out of every 100 households rent their home.

📉 Renters Spending Over 30% of Income on Rent in ZIP Code 63123

In ZIP Code 63123, cost-burdened renters (households spending over 30% of income on housing): 1,965 (36%)

🏚️ What Does It Mean When Renters Spend Over 30% of Their Income on Housing?
Household Group Households Share
Cost-burdened renters (over 30%) 1,965 36%
Other renter households 3,494 64%
Total renter households 5,459 100%

Shares are calculated as a percentage of renter households.

This shows how many renters in the ZIP code are considered cost-burdened — meaning they spend more than 30% of their income on housing (rent and basic utilities).

It’s a sign that housing might be unaffordable in the area or that lower-income residents may be struggling with rent.

Data comes from the U.S. Census Bureau’s American Community Survey.

📊 Education Levels in ZIP Code 63123

Less than High School: 9,076 people (25.1%)

Includes adults who did not complete high school.

High School Graduate or GED: 9,021 people (24.9%)

Includes adults whose highest education is a high school diploma or GED.

Some College or Associate Degree: 4,512 people (12.5%)

Includes adults who attended college without completing a bachelor’s degree (some college or associate degree).

Bachelor’s Degree or Higher: 13,615 people (37.6%)

Includes adults with a bachelor’s degree or higher (bachelor’s, master’s, professional, or doctoral degree).

👥 Total Adults (25+): 36,224

ℹ️ Have questions about how these statistics are calculated? See our data methodology & FAQs

 

Source: ACS 5-Year Estimates (U.S. Census Bureau) — unemployment rate from BLS. Some values are derived metrics.