California, MD · standard
ZIP Code 20619
St. Mary's County, Maryland — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 10,503
- 259/sq mi
- $119,432
- Median income
- $376,800
- Median home value
- 50.2%
- Bachelor's or higher
The verdict
California pairs a top-decile household income with upper-quartile home values, in a low-density, homeowner-dominated area.
- Top 10%
- household income, US ZIPs
- Top 23%
- home value, US ZIPs
- 259
- people per sq mi
- 65%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 20619 against every reporting US ZIP.
ZIP code 20619 is classified by USPS as a standard delivery area and covers roughly 40.6 square miles in California, St. Mary's County, Maryland. The area is home to 10,503 residents, producing a population density of 259 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 20619 against Maryland and the nation.
On the economic side, the median household income for ZIP 20619 sits at $119,432 (5% above the Maryland average), while per-capita income is $55,956. The poverty rate stands at 7.1% and the unemployment rate at 2.7%. On housing, the median home value is $376,800 (16% below the state average) with median rent at $2,129 per month, and 64.5% of occupied units are owner-occupied, a direct signal of whether 20619 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 50.2% of adults hold a bachelor's degree or higher, the median age is 36.6, and the average commute is 29 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing St. Mary's County, so you can benchmark 20619 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 20619
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 20619.
- Retail trade
Retail trade
75 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
67 establishments
- Accommodation and food services
Accommodation and food services
56 establishments
- Health care and social assistance
Health care and social assistance
39 establishments
- Other services (except public administration)
Other services (except public administration)
34 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 20619, California, MD · 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
10,503
Population
40.6
Area (sq mi)
259
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 20619?
36.6
Median Age
51.8%
Male
48.2%
Female
6.6%
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?
$119,432
Median Household Income
+5% vs state
$55,956
Per Capita Income
7.1%
Poverty Rate
2.7%
Unemployment Rate
29.4 min
Mean Commute Time
How ZIP 20619 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$119,432 Top 10% higher than 90% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023
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?
6,040
Total Housing Units
5,719
Occupied Units
321
Vacant Units
2.48
Avg Household Size
Occupancy Type
$376,800
Median Home Value
-16% vs state
$2,129
Median Rent
2002
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
+7.2%
YoY Change (2024)
239
HPI Index (2000 = 100)
+139%
Total Change Since 2000
Home values in ZIP 20619 have increased 7.2% over the past year (2024). Since 2000, this ZIP has seen +139% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | -0.5% | 163 |
| 2021 | +10.5% | 180 |
| 2022 | +6.3% | 191 |
| 2023 | +16.6% | 223 |
| 2024 | +7.2% | 239 |
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 352 business establishments in ZIP 20619, employing approximately 8,144 people with a combined annual payroll of $454,335,000.
352
Businesses
8,144
Employees
$454.3M
Annual Payroll
13
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 75 | 21.3% |
| Professional, scientific, and technical services | 67 | 19.0% |
| Accommodation and food services | 56 | 15.9% |
| Health care and social assistance | 39 | 11.1% |
| Other services (except public administration) | 34 | 9.7% |
| Finance and insurance | 20 | 5.7% |
| Construction | 14 | 4.0% |
| Real estate and rental and leasing | 14 | 4.0% |
| Administrative and support and waste management and remediation services | 7 | 2.0% |
| Educational services | 7 | 2.0% |
| Arts, entertainment, and recreation | 6 | 1.7% |
| Information | 5 | 1.4% |
| Wholesale trade | 4 | 1.1% |
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 20619 vs 20620 →
ZIP 20619 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20650
Leonardtown (20650)
13,717 residents
- 20619
California (20619)
10,503 residents
- 20636
Hollywood (20636)
9,937 residents
- 20685
Saint Leonard (20685)
6,471 residents
- 20634
Great Mills (20634)
5,927 residents
- 20688 1,828
Solomons (20688)
1,828 residents
- 20620 1,443
Callaway (20620)
1,443 residents
- 20692 1,051
Valley Lee (20692)
1,051 residents
- 20670 1,014
Patuxent River (20670)
1,014 residents
What this shows Among its immediate neighbors, ZIP 20619 ranks #2 by population — useful context the national average alone can't give.
ZIP 20619 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20692
Valley Lee (20692)
$201,250 median income
- 20620
Callaway (20620)
$165,972 median income
- 20636
Hollywood (20636)
$163,690 median income
- 20650
Leonardtown (20650)
$143,116 median income
- 20634
Great Mills (20634)
$139,375 median income
- 20690
Tall Timbers (20690)
$122,750 median income
- 20619
California (20619)
$119,432 median income
- 20685
Saint Leonard (20685)
$119,135 median income
- 20688
Solomons (20688)
$102,950 median income
What this shows By household income, ZIP 20619 ranks #7 of 9 neighboring ZIPs — local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 20620 | Callaway, MD | 1,443 | 4.1 mi |
| 20634 | Great Mills, MD | 5,927 | 3.7 mi |
| 20688 | Solomons, MD | 1,828 | 4.4 mi |
| 20636 | Hollywood, MD | 9,937 | 4.8 mi |
| 20670 | Patuxent River, MD | 1,014 | 5.8 mi |
| 20629 | Dowell, MD | 535 | 5.1 mi |
| 20650 | Leonardtown, MD | 13,717 | 6.0 mi |
| 20690 | Tall Timbers, MD | 740 | 8.9 mi |
| 20692 | Valley Lee, MD | 1,051 | 7.5 mi |
| 20685 | Saint Leonard, MD | 6,471 | 9.9 mi |
More ZIP Codes in St. Mary's County
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Frequently Asked Questions
What county is ZIP code 20619 in? ▼
What is the population of ZIP code 20619? ▼
What is the median household income in ZIP 20619? ▼
What is the average home value in ZIP 20619? ▼
What is the demographic makeup of ZIP 20619? ▼
How many businesses are in ZIP code 20619? ▼
What are the main industries in ZIP code 20619? ▼
How have home values changed in ZIP code 20619? ▼
What is the education level in ZIP code 20619? ▼
What is the average commute time in ZIP 20619? ▼
What percentage of residents own vs. rent in ZIP 20619? ▼
What is the poverty rate in ZIP code 20619? ▼
ZIP Code Research Guides
Official Data Resources for California, MD
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.