Residential delivery area · Missouri
ZIP Code 63043: Maryland Heights, MO
ZIP code 63043 is in Maryland Heights, Missouri, entirely in St. Louis County (Census 2020 ZIP-county file). About 22,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $91,509 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Maryland Heights (93%) and Champ (6%).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Maryland Heights · its only residential ZIP
- County
- St. Louis County
- Census places
- Maryland Heights (93%); Champ (6%)
- Metro area
- St. Louis, MO-IL
- House districts
- MO-1 (53%), MO-2 (47%) 119th Congress, by share of land
- State
- Missouri
- Time zone
- Central
- Land area
- 12.5 sq mi · 1,747 people per sq mi
Where is ZIP code 63043?
63043 centers on 38.729°, -90.455° and covers 12.5 square miles of land plus 0.2 of water. It borders 7 ZIP codes: 63146, 63045, 63044, 63074, 63303, 63114, 63301.
The map draws ZIP code areas only. For the streets inside 63043, 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 63043 compare with the rest of St. Louis County?
| Measure | 63043 | In St. Louis County | In MO |
|---|---|---|---|
| People (ACS 2020-2024) | 21,924 | 18th of 47 | 84th of 1,035 |
| Median household income | $92k | 22nd of 44 | 75th of 479 |
| Median home value | $228k | 29th of 45 | 178th of 494 |
Its median household income is higher than in 75% of U.S. residential ZIP codes, and it is denser than 83% 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 63043?
The 2020 Census counted 22,362 people in 63043; the ACS, which samples households over 2020-2024, estimates 21,924. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 21,924
- 2020 Census count
- 22,362
- Households
- 9,402
- Median age
- 37.1
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 63043?
Of the 21,924 people the ACS estimates in 63043, 19.1% are under 18 and 15.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (60.4%), then Asian (not Hispanic) (14.2%).
- Under 1819.1%
- 18 to 6465.9%
- 65 and older15.0%
- White, not Hispanic60.4%
- Asian, not Hispanic14.2%
- Black, not Hispanic13.3%
- Hispanic or Latino6.2%
- Other or two or more5.9%
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 63043 earn?
Median household income is $91,509 (ACS 2020-2024), the 22nd highest of the 44 ranked ZIP codes in St. Louis County.
- Median household income
- $91,509
- Income per person
- $44,325
- Below the poverty line
- 3.8%
- Unemployed (of the labor force)
- 2.0%
- Adults 25+ with a bachelor's degree
- 45.5%
- Adjusted gross income per tax return, 2022
- $72,19011,380 returns; wages 78% 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 63043?
FHFA's house price index for 63043, built from repeat sales and appraisals of the same homes, rose 94% from 2015 to 2025 and rose 49% from 2020 to 2025, and moved +2.6% in 2025.
- Median home value (owners' estimate)
- $227,600
- Median gross rent
- $1,283
- Homes owned by their occupants
- 69.6%
- Housing units
- 9,643
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 63043?
791 business establishments had a location in this ZIP code in 2023, 115 fewer than in 2018; the most are in wholesale trade (ZIP Code Business Patterns).
- Wholesale trade137
- Construction69
- Administrative and support and waste management and remediation services63
- Accommodation and food services63
- Retail trade62
- Manufacturing61
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 63043?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 63146 | Saint Louis | 30,678 | $85k | 2.4 mi |
| 63045 | Earth City | 0 | – | 2.8 mi |
| 63044 | Bridgeton | 10,324 | $78k | 3.3 mi |
| 63074 | Saint Ann | 15,793 | $52k | 3.6 mi |
| 63303 | Saint Charles | 46,089 | $99k | 4.8 mi |
| 63114 | Saint Louis | 33,969 | $56k | 5.3 mi |
| 63301 | Saint Charles | 52,667 | $85k | 8.9 mi |
| 63141 | Saint Louis | 20,932 | $134k | 4.9 mi (near) |
| 63042 | Hazelwood | 17,813 | $50k | 5.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.