| City: | Saint Louis, Missouri |
| City Alias: | Affton, Grantwood Village, Grantwood Vlg, Lakeshire, Mackenzie, Marlborough, Saint George |
| Names to Avoid: | Green Park, Wilbur Park |
| Counties: | Saint Louis County[Primary] Saint Louis City County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:07:25 AM |
| Population: | 50,989 [See All] |
| Area Codes: | 314 / 557 |
| Classification: | Standard [Normal Street Delivery] |
| Coordinates: | 38.5488, -90.3198 |
| Land Area: | 12.454 sq mi |
| Quick Link: |
ZIP Code 63123 has 50,989 residents and 22,711 households (average 2.24 persons per household). The median age is 40.8 years, slightly older than the state (39.0) and slightly older than the nation (38.8). The gender split is 48.1% male and 51.9% female, which is about the same as the state male share (49.1%), making this a female-majority area. Largest groups are White (84.8%, much higher than the state average of 77.0% and well above the national average of 61.6%) and Asian (4.8%, slightly higher than the state average of 2.2%); Hispanic or Latino residents make up 3.3%, which is much lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 50,989Source: Census DHC |
| 2023 ACS Population Estimate: | 49,826Source: Census ACS |
| 2025 ZC Population Estimate: | 51,266Source: ZIP-Codes.com |
| Population Density: | 4,094.2 people per sq mile |
| Average Income: | $74,187Source: Census ACS |
| Households: | 22,711Source: Census DHC |
| Average House Value: | $205,300Source: Census ACS |
| Persons Per Household: | 2.24Source: Census DHC |
| Average Family Size: | 3.17Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 48,538 | 48,869 | 49,390 | 49,581 | 49,924 | 50,739 | 50,790 | 51,130 | 50,783 | 50,463 | 49,886 | 50,347 | 49,826 |
| Decennial Census | 49,308 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 50,989 | -- | -- | -- |
Median Age: 40.8
Male Median Age: 39.3
Female Median Age: 42.7
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 1,374 | 1,476 | 1,471 | 1,267 | 1,344 | 1,765 | 1,895 | 1,976 | 1,464 | 1,394 | 1,449 | 1,799 | 1,766 | 1,509 | 992 | 630 | 453 | 521 |
| Female | 1,336 | 1,439 | 1,302 | 1,162 | 1,339 | 1,819 | 1,957 | 2,000 | 1,497 | 1,405 | 1,482 | 1,856 | 2,069 | 1,756 | 1,293 | 961 | 792 | 979 |
| Total | 2,710 | 2,915 | 2,773 | 2,429 | 2,683 | 3,584 | 3,852 | 3,976 | 2,961 | 2,799 | 2,931 | 3,655 | 3,835 | 3,265 | 2,285 | 1,591 | 1,245 | 1,500 |
| White: | 43,219 | 87.06% |
| Black: | 1,568 | 3.16% |
| Hispanic:* | 1,708 | 3.44% |
| Asian: | 2,467 | 4.97% |
| American Indian: | 118 | 0.24% |
| Hawaiian: | 22 | 0.04% |
| Other: | 539 | 1.09% |
| Total: | 49,641 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 24,545 | 48.14% | 39.3 years |
| Females: | 26,444 | 51.86% | 42.7 years |
| Total: | 50,989 | 100% | 40.8 years |
| Native, born in the United States: | 42,475 | 85.25% |
| Native, born in PR, Island Areas, or abroad: | 744 | 1.49% |
| Foreign born, naturalized U.S. citizen: | 4,577 | 9.19% |
| Foreign born, not a U.S. citizen: | 2,030 | 13.26% |
| Total Population: | 49,826 | 100% |
| Total Native Population: | 43,219 | 86.74% |
| Total Foreign-born Population: | 6,607 | 13.26% |
In 2023, the Median household income is $74,187, which is far above the state median ($68,920), is up $21,854 (41.8%) since 2011 and above its 2019 pre-pandemic level by $15,320. Family households earn a median of $94,433 versus $47,692 for nonfamily households (a difference of $46,741). By gender, male median income is $59,447 and female is $47,273, which is well under the national female median ($53,445), with a current gap of $12,174 that has widened from 2011 to 2023. The labor-force participation rate is 68.3%, which is above the state rate (63.1%). The unemployment rate is 2.5%, which is considerably lower than the national rate (5.2%). The largest occupation group is Management (41.5%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $52,333 | $54,408 | $52,877 | $53,063 | $52,881 | $54,212 | $55,590 | $57,215 | $58,867 | $61,253 | $65,693 | $71,054 | $74,187 |
| Median Family Income | $65,181 | $69,131 | $69,492 | $70,503 | $71,089 | $70,242 | $73,724 | $74,953 | $79,688 | $82,018 | $85,338 | $89,578 | $94,433 |
| Median NonFamily Income | $35,136 | $36,204 | $35,461 | $36,164 | $37,130 | $37,515 | $38,023 | $39,160 | $39,114 | $39,584 | $42,153 | $44,926 | $47,692 |
| Median Male Income | $44,265 | $45,317 | $45,545 | $45,711 | $47,175 | $48,301 | $49,328 | $50,499 | $51,014 | $51,711 | $53,433 | $57,130 | $59,447 |
| Median Female Income | $37,095 | $38,107 | $38,773 | $39,038 | $38,789 | $39,184 | $40,150 | $40,907 | $43,369 | $40,761 | $42,179 | $43,973 | $47,273 |
| Employed: | 27,799 | 66.56% |
| Unemployed: | 721 | 1.73% |
| Not In Labor Force: | 13,244 | 31.71% |
| Total: | 41,764 | 100% |
| Management, business, science, and arts: | 11,533 | 41.49% |
| Service: | 4,999 | 17.98% |
| Sales and Office: | 5,631 | 20.26% |
| Natural resources, construction, and maintenance: | 2,108 | 7.58% |
| Production, transportation, and material moving: | 3,528 | 12.69% |
| Total Civilian Employed Population: | 27,799 | 100% |
In 2023, the median home value is $205,300, which is far less than the national median ($303,400), is up $53,900 (35.60%) since 2011 and above its 2019 pre-pandemic level by $55,200. The median gross rent is $987, which is much lower than the national median ($1,348), is up $291 (41.81%) since 2011 and above its 2019 pre-pandemic level by $145. Of occupied housing, owners make up 73.95% (61.98% with a mortgage, 38.02% free-and-clear) and renters 26.05% - making this ZIP Code more home ownership than the state and under national rental averages. The vacancy rate is 5.76%, which is much lower than the state rate (11.56%).
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $151,400 | $149,900 | $147,400 | $144,800 | $143,900 | $142,500 | $144,100 | $146,000 | $150,100 | $158,100 | $166,300 | $191,900 | $205,300 |
| Less than $500: | 114 | 2.00% |
| $500 to $999: | 2,691 | 47.24% |
| $1,000 to $1,499: | 1,969 | 34.56% |
| $1,500 to $1,999: | 443 | 7.78% |
| $2,000 to $2,499: | 80 | 1.40% |
| $2,500 to $2,999: | 69 | 1.21% |
| $3,000 or more: | 47 | 0.82% |
| No Rent: | 284 | 4.99% |
| Total: | 5,697 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $696 | $719 | $719 | $738 | $743 | $772 | $801 | $833 | $842 | $868 | $887 | $959 | $987 |
| Owner Occupied (with mortgage): | 10,025 | 45.83% |
| Owner Occupied (free and clear, no mortgage): | 6,150 | 28.12% |
| Renter Occupied: | 5,697 | 26.05% |
| Total Occupied Housing Units: | 21,872 | 100% |
| Occupied Housing Units: | 21,872 | 94.24% |
| Vacant Housing Units (not graphed): | 1,336 | 5.76% |
| Total Housing Units: | 23,208 | 100% |
| Single-Family Units: | 18,158 | 78.24% |
| Multi-Family Units: | 4,957 | 21.36% |
| Other Units: | 93 | 0.40% |
| Total Housing Units: | 23,208 | 100% |
In 2023, 36.00% of adults (25+) have a bachelor's degree or higher, which is notably higher than the state rate (31.90%). High school or higher is 92.30%, which is well above the national rate (89.40%). The uninsured rate is 5.30%, which is generally lower than the state rate (9.20%). The share of people in poverty is 4.80%, which is falls below the national rate (8.70%), down 0.80 percentage points since 2011 and below its 2019 pre-pandemic level by 0.30 percentage points. This suggests a positive shift in the local economic and social landscape - higher incomes, steadier consumer demand, and a strengthening tax base. Among residents ages 3+, the largest enrollment group is elementary (36.65%). College enrollment is 31.81%, which is markedly above the state rate (24.50%), indicating the community is likely a college hub with student-driven housing and services.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 1,124 | 3.07% |
| 9th to 12th grade, no diploma: | 1,700 | 4.64% |
| High school graduate (includes equivalency): | 9,275 | 25.31% |
| Some college, no degree: | 7,515 | 20.50% |
| Associate's degree: | 3,826 | 10.44% |
| Bachelor's degree: | 8,038 | 21.93% |
| Graduate or professional degree: | 5,172 | 14.11% |
| Total: | 36,650 | 100% |
| High school or higher: | 33,826 | 92.29% |
| Bachelor's degree or higher: | 13,210 | 36.04% |
| Private Insurance: | 38,289 | 68.68% |
| Public Insurance: | 14,827 | 26.59% |
| No Insurance: | 2,637 | 4.73% |
| Total: | 55,753 | 100% |
| Has Health Insurance: | 53,116 | 95.27% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 5.6% | 5.5% | 6.6% | 6.1% | 6.3% | 6.5% | 5.6% | 5.7% | 5.1% | 4.9% | 3.6% | 4.0% | 4.8% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 815 | 7.67% |
| Kindergarten: | 376 | 3.54% |
| Elementary school (grades 1-8): | 3,895 | 36.65% |
| High school (grades 9-12): | 2,162 | 20.34% |
| College or graduate school: | 3,381 | 31.81% |
| Total: | 10,629 | 100% |
| Early Childhood: | 1,191 | 11.21% |
| K-12 (Primary & Secondary School): | 6,433 | 60.52% |
ZIP Code 63123 supports both business and residential activity. According to the Business Census (2023), there are 915 business establishments, employing about 13,475 people with an annual payroll of $767,582,000. USPS data shows 22,887 residential mailboxes and 888 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 22,887Source: USPS |
| # Business Mailboxes: | 888Source: USPS |
| Total Delivery Receptacles: | 24,572Source: USPS |
| Single Family Delivery Units: | 18,471Source: USPS |
| Multi Family Delivery Units: | 3,958Source: USPS |
| # of Businesses: | 915Source: CBP |
| 1st Quarter Payroll: | $176,299,000Source: CBP |
| Annual Payroll: | $767,582,000Source: CBP |
| # of Employees: | 13,475Source: CBP |
ZIP Code 63123 is located in Saint Louis County, Missouri, within the St. Louis, MO-IL Metropolitan Statistical Area (CBSA 41180) and Missouri's 1st and 2nd Congressional Districts. This Metro area has a population of 2,809,414 people, about 1.81% of whom live in ZIP Code 63123. It covers 12.454 sq mi of land and a water area of 0.1 sq mi.
| CBSA Name: | St. Louis, MO-ILSource: Census |
| CBSA Number: | 41180Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,809,414Source: Census |
| MSA: | St. Louis, MO-IL MSASource: Census |
| Land Area: | 12.454 sq miSource: Census |
| Water Area: | 0.1 sq miSource: Census |
| Congressional District: | 01,02Source: USPS |
| Congressional Land Area: | 225.36, 465.76 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2965000Source: Census |
| Place Name: | St. Louis city; MissouriSource: Census |
ZIP Code 63123 is part of 3 school districts, including: Lindbergh School District (Grades KG thru 12), Affton 101 School District (Grades KG thru 12) and Bayless School District (Grades Kindergarten thru 12th). There are 8 public schools and 6 private school(s) in this ZIP Code. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on October 1, 2025.