Residential delivery area · Missouri
ZIP Code 63126: Saint Louis, MO
ZIP code 63126 uses the postal name Saint Louis, Missouri and lies entirely in St. Louis County (Census 2020 ZIP-county file). About 15,000 people live there (Census Bureau, ACS 2020-2024), the 27th most populous of Saint Louis's 46 residential ZIP codes. Median household income is $98,852 (Census Bureau, ACS 2020-2024). Most of its land (66%) lies in the city of Crestwood.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Saint Louis · 46 residential ZIPs
- County
- St. Louis County
- Census places
- Crestwood (66%); Sappington (25%) census-designated place; Sunset Hills (9%)
- Metro area
- St. Louis, MO-IL
- House district
- MO-2 119th Congress
- State
- Missouri
- Time zone
- Central
- Land area
- 4.6 sq mi · 3,361 people per sq mi
- PO Box ZIPs
- 22 more ZIP codes use the name Saint Louis for PO boxes or single organizations
Where is ZIP code 63126?
63126 centers on 38.550°, -90.379° and covers 4.6 square miles of land. It borders 5 ZIP codes: 63127, 63123, 63122, 63119, 63128.
The map draws ZIP code areas only. For the streets inside 63126, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 63126 compare with the rest of Saint Louis?
| Measure | 63126 | In Saint Louis | In St. Louis County | In MO |
|---|---|---|---|---|
| People (ACS 2020-2024) | 15,452 | 27th of 46 | 32nd of 47 | 132nd of 1,035 |
| Median household income | $99k | 9th of 38 | 17th of 44 | 49th of 479 |
| Median home value | $306k | 14th of 42 | 19th of 45 | 73rd of 494 |
Its median household income is higher than in 80% of U.S. residential ZIP codes, and it is denser than 90% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 63126?
The 2020 Census counted 15,851 people in 63126; the ACS, which samples households over 2020-2024, estimates 15,452. Between the 2010 and 2020 censuses its population grew 4.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 15,452
- 2020 Census count
- 15,851+4.9% since 2010 (15,112)
- Households
- 6,208
- Median age
- 41.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 63126?
Of the 15,452 people the ACS estimates in 63126, 21.1% are under 18 and 20.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.1%).
- Under 1821.1%
- 18 to 6458.2%
- 65 and older20.7%
- White, not Hispanic90.1%
- Other or two or more3.4%
- Hispanic or Latino2.7%
- Black, not Hispanic2.2%
- Asian, not Hispanic1.6%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 63126 earn?
Median household income is $98,852 (ACS 2020-2024), the 17th highest of the 44 ranked ZIP codes in St. Louis County. It is not measurably different from 2015-2019 ($98,227 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $98,852±$11,120
- Income per person
- $48,833
- Below the poverty line
- 5.0%
- Unemployed (of the labor force)
- 2.0%
- Adults 25+ with a bachelor's degree
- 54.4%
- Adjusted gross income per tax return, 2022
- $91,6448,110 returns; wages 68% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 63126?
FHFA's house price index for 63126, built from repeat sales and appraisals of the same homes, rose 75% from 2015 to 2025 and rose 41% from 2020 to 2025, and moved +1.5% in 2025.
- Median home value (owners' estimate)
- $306,300
- Median gross rent
- $1,121
- Homes owned by their occupants
- 86.1%
- Housing units
- 6,462
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 63126?
454 business establishments had a location in this ZIP code in 2023, 55 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services66
- Finance and insurance57
- Retail trade50
- Other services (except public administration)50
- Health care and social assistance44
- Construction33
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 63126?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 63127 | Saint Louis | 5,268 | $123k | 2.3 mi |
| 63123 | Saint Louis | 49,077 | $77k | 2.7 mi |
| 63122 | Saint Louis | 41,634 | $136k | 3.1 mi |
| 63119 | Saint Louis | 34,181 | $106k | 3.2 mi |
| 63128 | Saint Louis | 30,540 | $92k | 4.0 mi |
| 63125 | Saint Louis | 33,294 | $62k | 5.1 mi (near) |
| 63144 | Saint Louis | 9,505 | $104k | 5.1 mi (near) |
| 63109 | Saint Louis | 25,236 | $70k | 5.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.