Residential delivery area · Missouri
ZIP Code 63109: Saint Louis, MO
ZIP code 63109 uses the postal name Saint Louis, Missouri and lies entirely in St. Louis city (Census 2020 ZIP-county file). About 25,000 people live there (Census Bureau, ACS 2020-2024), the 13th most populous of Saint Louis's 46 residential ZIP codes. Median household income is $69,938 (Census Bureau, ACS 2020-2024). Most of its land (100%) lies in the city of St. Louis.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Saint Louis · 46 residential ZIPs
- County
- St. Louis city
- Census places
- St. Louis
- Metro area
- St. Louis, MO-IL
- House district
- MO-1 119th Congress
- State
- Missouri
- Time zone
- Central
- Land area
- 3.5 sq mi · 7,137 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 63109?
63109 centers on 38.585°, -90.294° and covers 3.5 square miles of land plus 0.0 of water. It borders 5 ZIP codes: 63116, 63139, 63143, 63119, 63123.
The map draws ZIP code areas only. For the streets inside 63109, 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 63109 compare with the rest of Saint Louis?
| Measure | 63109 | In Saint Louis | In MO |
|---|---|---|---|
| People (ACS 2020-2024) | 25,236 | 13th of 46 | 69th of 1,035 |
| Median household income | $70k | 19th of 38 | 201st of 479 |
| Median home value | $265k | 19th of 42 | 115th of 494 |
Its median household income is higher than in 47% of U.S. residential ZIP codes, and it is denser than 96% 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 63109?
The 2020 Census counted 26,777 people in 63109; the ACS, which samples households over 2020-2024, estimates 25,236. Between the 2010 and 2020 censuses its population fell 0.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 25,236
- 2020 Census count
- 26,777−0.6% since 2010 (26,946)
- Households
- 14,080
- 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 63109?
Of the 25,236 people the ACS estimates in 63109, 15.6% are under 18 and 19.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (85.9%).
- Under 1815.6%
- 18 to 6464.6%
- 65 and older19.7%
- White, not Hispanic85.9%
- Black, not Hispanic5.7%
- Hispanic or Latino3.8%
- Other or two or more3.1%
- Asian, not Hispanic1.5%
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 63109 earn?
Median household income is $69,938 (ACS 2020-2024), the 19th highest of the 38 ranked ZIP codes in Saint Louis. It fell from $77,584 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $69,938
- Income per person
- $50,768
- Below the poverty line
- 9.9%
- Unemployed (of the labor force)
- 2.0%
- Adults 25+ with a bachelor's degree
- 52.5%
- Adjusted gross income per tax return, 2022
- $80,87814,460 returns; wages 77% 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 63109?
FHFA's house price index for 63109, built from repeat sales and appraisals of the same homes, rose 73% from 2015 to 2025 and rose 40% from 2020 to 2025, and moved +0.3% in 2025.
- Median home value (owners' estimate)
- $264,700
- Median gross rent
- $971
- Homes owned by their occupants
- 60.9%
- Housing units
- 15,066
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 63109?
574 business establishments had a location in this ZIP code in 2023, 30 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance117
- Professional, scientific, and technical services73
- Other services (except public administration)73
- Accommodation and food services71
- Retail trade60
- Finance and insurance42
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 63109?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 63116 | Saint Louis | 42,170 | $61k | 1.6 mi |
| 63139 | Saint Louis | 21,631 | $76k | 1.8 mi |
| 63143 | Saint Louis | 8,975 | $66k | 2.4 mi |
| 63119 | Saint Louis | 34,181 | $106k | 3.0 mi |
| 63123 | Saint Louis | 49,077 | $77k | 3.1 mi |
| 63111 | Saint Louis | 18,851 | $47k | 3.0 mi (near) |
| 63110 | Saint Louis | 17,645 | $82k | 3.2 mi (near) |
| 63117 | Saint Louis | 9,261 | $91k | 3.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.