PlainZIP

Saint Louis, MO · standard

ZIP Code 63123

St. Louis County, Missouri - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

49,308
1,518/sq mi
$77,055
Median income
$219,400
Median home value
37.6%
Bachelor's or higher

The verdict

Saint Louis pairs an above-median household income with below-median home values, in a low-density, homeowner-dominated area.

Top 42%
household income, US ZIPs
49th pct
home value, US ZIPs
1,518
people per sq mi
75%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 63123 against every reporting US ZIP.

ZIP code 63123 is a densely settled ZIP (a standard USPS delivery area) in Saint Louis, St. Louis County, Missouri, with 49,308 residents across 32.5 square miles, a density of 1,518 people per square mile, in the Chicago time zone.

ZIP 63123 lands in the middle-income range, with a median household income of $77,055 (15% above the Missouri average), while per-capita income is $44,373. Local economic indicators show a 7.9% poverty rate alongside 2.2% unemployment. On housing, the median home value is $219,400 (15% above the state average) with median rent at $1,006 per month, and 74.9% of occupied units are owner-occupied.

A solid share of residents have a four-year degree: 37.6% of adults hold a bachelor's degree or higher, the median age is 40.9, and the average commute is 24 minutes. Beyond these figures, 10 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing St. Louis County, letting you compare 63123 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 63123

Top 5 sectors by establishment count in Saint Louis, MO

Which industries have the most business establishments in ZIP 63123.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 63123, Saint Louis, MO · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

49,308

Population

32.5

Area (sq mi)

1,518

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 63123?

40.9

Median Age

48.4%

Male

51.6%

Female

13.2%

Foreign-Born

White 82.5%
African American 4.0%
Asian 4.8%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 8.0%
Hispanic or Latino 4.1%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$77,055

Median Household Income

+15% vs state

$44,373

Per Capita Income

7.9%

Poverty Rate

2.2%

Unemployment Rate

23.7 min

Mean Commute Time

How ZIP 63123 ranks nationally

Saint Louis, MO household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$77,055 Top 42% higher than 58% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 62.5%
Bachelor's Degree or Higher 37.6%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

23,178

Total Housing Units

21,755

Occupied Units

1,423

Vacant Units

2.25

Avg Household Size

Occupancy Type

Owner 74.9%
Renter 25.1%

$219,400

Median Home Value

+15% vs state

$1,006

Median Rent

1960

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+4.2%

YoY Change (2024)

220

HPI Index (2000 = 100)

+120%

Total Change Since 2000

Home values in ZIP 63123 have increased 4.2% over the past year (2024). Since 2000, this ZIP has seen +120% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.3% 155
2021 +10.0% 171
2022 +12.1% 191
2023 +10.4% 211
2024 +4.2% 220

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 915 business establishments in ZIP 63123, employing approximately 13,475 people with a combined annual payroll of $767,582,000.

915

Businesses

13,475

Employees

$767.6M

Annual Payroll

17

Industry Sectors

Industry Establishments % of Total
Construction 115 12.6%
Health care and social assistance 107 11.7%
Other services (except public administration) 92 10.1%
Retail trade 89 9.7%
Professional, scientific, and technical services 80 8.7%
Accommodation and food services 78 8.5%
Administrative and support and waste management and remediation services 70 7.7%
Finance and insurance 67 7.3%
Transportation and warehousing 59 6.5%
Wholesale trade 46 5.0%
Real estate and rental and leasing 34 3.7%
Manufacturing 28 3.1%
Educational services 18 2.0%
Arts, entertainment, and recreation 14 1.5%
Information 9 1.0%
Management of companies and enterprises 5 0.6%
Utilities 4 0.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 63123 vs 63126 →

ZIP 63123 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 63123 ranks the most populous - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 63123 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 63123 ranks #6 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
63126 Saint Louis, MO 15,112 2.8 mi
63119 Saint Louis, MO 33,969 3.0 mi
63125 Saint Louis, MO 32,201 2.8 mi
63109 Saint Louis, MO 26,946 3.0 mi
63143 Saint Louis, MO 9,678 4.3 mi
63117 Saint Louis, MO 9,163 5.7 mi
63111 Saint Louis, MO 20,313 4.2 mi
63144 Saint Louis, MO 8,825 5.0 mi
63116 Saint Louis, MO 43,540 4.0 mi
63105 Saint Louis, MO 17,667 6.6 mi

More ZIP Codes in St. Louis County

63021 standard
Ballwin, MO
Pop: 56,261
63129 standard
Saint Louis, MO
Pop: 52,718
63136 standard
Saint Louis, MO
Pop: 48,560
63031 standard
Florissant, MO
Pop: 48,212
63026 standard
Fenton, MO
Pop: 44,124
63033 standard
Florissant, MO
Pop: 43,000

Related Areas

St. Louis County Saint Louis, MO Missouri

Frequently Asked Questions

What county is ZIP code 63123 in? ▼
ZIP code 63123 (Saint Louis) is located in St. Louis County, Missouri. St. Louis County contains multiple ZIP codes, see the full list at /counties/st-louis-mo-29189.
What is the population of ZIP code 63123? ▼
ZIP code 63123 in Saint Louis, MO has a population of 49,308 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 63123? ▼
The median household income in ZIP 63123 is $77,055, which is 1% above the national average of $76,288.
What is the average home value in ZIP 63123? ▼
The median home value in ZIP 63123 is $219,400, which is 21% below the national average of $278,155.
What is the demographic makeup of ZIP 63123? ▼
The largest racial group in ZIP 63123 is White at 82.5%. Hispanic or Latino residents make up 4.1% of the population.
How many businesses are in ZIP code 63123? ▼
ZIP code 63123 has 915 business establishments employing approximately 13,475 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 63123? ▼
The top industries by establishment count in ZIP 63123 are: Construction (115), Health care and social assistance (107), Other services (except public administration) (92). There are 17 industry sectors represented in total.
How have home values changed in ZIP code 63123? ▼
According to the FHFA House Price Index, home values in ZIP 63123 increased by 4.2% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 120%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 63123? ▼
In ZIP code 63123, 62.5% of residents aged 25+ have a high school diploma or higher, and 37.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 63123? ▼
The mean commute time for workers in ZIP code 63123 is 23.7 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 63123? ▼
In ZIP code 63123, approximately 74.9% of occupied housing units are owner-occupied and 25.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 63123? ▼
The poverty rate in ZIP code 63123 is 7.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.