ZIP Code 40203
standardSource:
Louisville · Jefferson County · Kentucky
- Population
- 19,694
- Median income
- $30,794
- Median home value
- $197,300
- Bachelor's or higher
- 22.5%
- Land area
- 7.6 sq mi
2,586/sq mi
▼ 60% vs US
higher than 2% of US ZIPs
▼ 29% vs US
higher than 43% of US ZIPs
Median age 32.8
Kentucky/Louisville
ZIP code 40203 in Louisville, Kentucky has a population of 19,694. The median household income is $30,794, which is 60% below the national average. Median home value is $197,300, 29% below the US average. 22.5% of residents hold a bachelor's degree or higher.
ZIP code 40203 is classified by USPS as a standard delivery area and covers roughly 7.6 square miles in Louisville, Jefferson County, Kentucky. The area is home to 19,694 residents, producing a population density of 2,586 people per square mile, and falls within the Kentucky/Louisville time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 40203 against Kentucky and the nation.
On the economic side, the median household income for ZIP 40203 sits at $30,794 (48% below the Kentucky average), while per-capita income is $23,941. The poverty rate stands at 43.3% and the unemployment rate at 11.8%. On housing, the median home value is $197,300 (24% above the state average) with median rent at $809 per month, and 24.9% of occupied units are owner-occupied, a direct signal of whether 40203 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 22.5% of adults hold a bachelor's degree or higher, the median age is 32.8, and the average commute is 19 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Jefferson County, so you can benchmark 40203 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 40203
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 40203.
- Health care and social assistance
Health care and social assistance
84 establishments
- Other services (except public administration)
Other services (except public administration)
82 establishments
- Retail trade
Retail trade
59 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
53 establishments
- Construction
Construction
36 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 40203, Louisville, KY · 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
19,694
Population
7.6
Area (sq mi)
2,586
People / sq mi
Kentucky/Louisville
Time Zone
standard
ZIP Type
Who lives in ZIP 40203?
32.8
Median Age
47.6%
Male
52.4%
Female
2.9%
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?
$30,794
Median Household Income
-48% vs state
$23,941
Per Capita Income
43.3%
Poverty Rate
11.8%
Unemployment Rate
19.1 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?
10,481
Total Housing Units
8,911
Occupied Units
1,570
Vacant Units
1.86
Avg Household Size
Occupancy Type
$197,300
Median Home Value
+24% vs state
$809
Median Rent
1955
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
+1.8%
YoY Change (2024)
296
HPI Index (2000 = 100)
+196%
Total Change Since 2000
Home values in ZIP 40203 have increased 1.8% over the past year (2024). Since 2000, this ZIP has seen +196% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +4.5% | 223 |
| 2021 | +11.9% | 250 |
| 2022 | +12.5% | 281 |
| 2023 | +3.5% | 291 |
| 2024 | +1.8% | 296 |
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 522 business establishments in ZIP 40203, employing approximately 8,514 people with a combined annual payroll of $431,402,000.
522
Businesses
8,514
Employees
$431.4M
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Health care and social assistance | 84 | 16.1% |
| Other services (except public administration) | 82 | 15.7% |
| Retail trade | 59 | 11.3% |
| Professional, scientific, and technical services | 53 | 10.2% |
| Construction | 36 | 6.9% |
| Wholesale trade | 35 | 6.7% |
| Manufacturing | 31 | 5.9% |
| Accommodation and food services | 29 | 5.6% |
| Real estate and rental and leasing | 28 | 5.4% |
| Administrative and support and waste management and remediation services | 25 | 4.8% |
| Finance and insurance | 19 | 3.6% |
| Information | 16 | 3.1% |
| Transportation and warehousing | 8 | 1.5% |
| Arts, entertainment, and recreation | 7 | 1.3% |
| Educational services | 5 | 1.0% |
| Management of companies and enterprises | 3 | 0.6% |
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 40203 vs 40202 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 40202 | Louisville, KY | 6,772 | 0.9 mi |
| 40208 | Louisville, KY | 13,227 | 2.0 mi |
| 40210 | Louisville, KY | 14,822 | 1.6 mi |
| 40204 | Louisville, KY | 14,236 | 2.5 mi |
| 40212 | Louisville, KY | 17,685 | 2.5 mi |
| 40217 | Louisville, KY | 12,507 | 2.6 mi |
| 47129 | Clarksville, IN | 19,527 | 4.6 mi |
| 40211 | Louisville, KY | 22,612 | 3.3 mi |
| 40206 | Louisville, KY | 18,865 | 3.4 mi |
| 40209 | Louisville, KY | 360 | 4.1 mi |
More ZIP Codes in Jefferson County
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Frequently Asked Questions
What county is ZIP code 40203 in? ▼
What is the population of ZIP code 40203? ▼
What is the median household income in ZIP 40203? ▼
What is the average home value in ZIP 40203? ▼
What is the demographic makeup of ZIP 40203? ▼
How many businesses are in ZIP code 40203? ▼
What are the main industries in ZIP code 40203? ▼
How have home values changed in ZIP code 40203? ▼
What is the education level in ZIP code 40203? ▼
What is the average commute time in ZIP 40203? ▼
What percentage of residents own vs. rent in ZIP 40203? ▼
What is the poverty rate in ZIP code 40203? ▼
ZIP Code Research Guides
Official Data Resources for Louisville, KY
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.