ZIP Code 63021
standardSource:
Ballwin · St. Louis County · Missouri
- Population
- 56,261
- Median income
- $120,177
- Median home value
- $349,500
- Bachelor's or higher
- 63.0%
- Land area
- 57.1 sq mi
986/sq mi
▲ 58% vs US
higher than 90% of US ZIPs
▲ 26% vs US
higher than 74% of US ZIPs
Median age 40.7
Chicago
ZIP code 63021 in Ballwin, Missouri has a population of 56,261. The median household income is $120,177, which is 58% above the national average. Median home value is $349,500, 26% above the US average. 63.0% of residents hold a bachelor's degree or higher.
ZIP code 63021 is classified by USPS as a standard delivery area and covers roughly 57.1 square miles in Ballwin, St. Louis County, Missouri. The area is home to 56,261 residents, producing a population density of 986 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 63021 against Missouri and the nation.
On the economic side, the median household income for ZIP 63021 sits at $120,177 (80% above the Missouri average), while per-capita income is $56,249. The poverty rate stands at 5.4% and the unemployment rate at 4.1%. On housing, the median home value is $349,500 (83% above the state average) with median rent at $1,423 per month, and 80.7% of occupied units are owner-occupied, a direct signal of whether 63021 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 63.0% of adults hold a bachelor's degree or higher, the median age is 40.7, and the average commute is 24 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing St. Louis County, so you can benchmark 63021 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 63021
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 63021.
- Professional, scientific, and technical services
Professional, scientific, and technical services
132 establishments
- Health care and social assistance
Health care and social assistance
93 establishments
- Construction
Construction
75 establishments
- Administrative and support and waste management and remediation services
Administrative and support and waste management and remediation services
64 establishments
- Other services (except public administration)
Other services (except public administration)
54 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, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 63021, Ballwin, MO · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
56,261
Population
57.1
Area (sq mi)
986
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 63021?
40.7
Median Age
48.9%
Male
51.1%
Female
10.7%
Foreign-Born
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?
$120,177
Median Household Income
+80% vs state
$56,249
Per Capita Income
5.4%
Poverty Rate
4.1%
Unemployment Rate
23.9 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
22,942
Total Housing Units
22,131
Occupied Units
811
Vacant Units
2.50
Avg Household Size
Occupancy Type
$349,500
Median Home Value
+83% vs state
$1,423
Median Rent
1983
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
+7.8%
YoY Change (2024)
230
HPI Index (2000 = 100)
+130%
Total Change Since 2000
Home values in ZIP 63021 have increased 7.8% over the past year (2024). Since 2000, this ZIP has seen +130% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +3.9% | 164 |
| 2021 | +8.4% | 178 |
| 2022 | +13.4% | 202 |
| 2023 | +5.9% | 213 |
| 2024 | +7.8% | 230 |
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 725 business establishments in ZIP 63021, employing approximately 6,403 people with a combined annual payroll of $334,131,000.
725
Businesses
6,403
Employees
$334.1M
Annual Payroll
17
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 132 | 18.2% |
| Health care and social assistance | 93 | 12.8% |
| Construction | 75 | 10.3% |
| Administrative and support and waste management and remediation services | 64 | 8.8% |
| Other services (except public administration) | 54 | 7.5% |
| Finance and insurance | 48 | 6.6% |
| Retail trade | 46 | 6.3% |
| Real estate and rental and leasing | 45 | 6.2% |
| Wholesale trade | 44 | 6.1% |
| Accommodation and food services | 31 | 4.3% |
| Transportation and warehousing | 19 | 2.6% |
| Educational services | 18 | 2.5% |
| Arts, entertainment, and recreation | 15 | 2.1% |
| Manufacturing | 14 | 1.9% |
| Information | 12 | 1.7% |
| Management of companies and enterprises | 7 | 1.0% |
| Industries not classified | 5 | 0.7% |
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 63021 vs 63011 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 63011 | Ballwin, MO | 36,347 | 2.5 mi |
| 63088 | Valley Park, MO | 8,269 | 2.8 mi |
| 63017 | Chesterfield, MO | 41,470 | 5.7 mi |
| 63040 | Wildwood, MO | 8,512 | 4.8 mi |
| 63049 | High Ridge, MO | 15,896 | 6.2 mi |
| 63122 | Saint Louis, MO | 38,495 | 6.9 mi |
| 63038 | Wildwood, MO | 6,914 | 6.8 mi |
| 63131 | Saint Louis, MO | 16,769 | 6.5 mi |
| 63025 | Eureka, MO | 13,854 | 6.7 mi |
| 63026 | Fenton, MO | 44,124 | 6.5 mi |
More ZIP Codes in St. Louis County
Related Areas
Frequently Asked Questions
What county is ZIP code 63021 in? ▼
What is the population of ZIP code 63021? ▼
What is the median household income in ZIP 63021? ▼
What is the average home value in ZIP 63021? ▼
What is the demographic makeup of ZIP 63021? ▼
How many businesses are in ZIP code 63021? ▼
What are the main industries in ZIP code 63021? ▼
How have home values changed in ZIP code 63021? ▼
What is the education level in ZIP code 63021? ▼
What is the average commute time in ZIP 63021? ▼
What percentage of residents own vs. rent in ZIP 63021? ▼
What is the poverty rate in ZIP code 63021? ▼
ZIP Code Research Guides
Official Data Resources for Ballwin, MO
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.