ZIP codes
2
California, MD Demographics & ZIP Codes
California, Maryland demographics and median household income by ZIP code (in St. Mary's County) — 2 ZIP codes — population 21,719 — median income $116,140 — avg. home value $349,500. Compare income, housing, and population across ZIP codes on US5.
Population
21,719
Median household income (avg.)
$116,140
155% of U.S. median
Average home value
$349,500
100% of U.S. median
Average rent
$1,624
140% of U.S. median
Median age (avg.)
34.4
California demographics
California, Maryland covers 2 ZIP codes primarily in St. Mary's County, with a combined ZIP-area population of about 21,719.
Across ZIP codes with age data, the average median age is about 34.4 years.
Median household income in California
The average median household income across ZIP codes in California, Maryland is about $116,140 — about 4% above the MD ZIP average ($111,660), and about 55% above the U.S. median ($75,149).
Among ZIPs with income data, 20634 is near the top at about $117,431, while 20619 is near the bottom at about $114,848.
Housing in California
For housing in California, Maryland, the average median home value is about $349,500 and the average median rent is about $1,624.
The most populous ZIP in this set is 20619 (about 14,743 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in California
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 20619 | California | St. Mary's County | MD | 14,743 | $114,848 | $364,200 |
| 20634 | California | St. Mary's County | MD | 6,976 | $117,431 | $334,800 |
Frequently asked questions
What are the demographics of California?
California, Maryland has a combined ZIP-area population of about 21,719 across 2 ZIP codes (primarily St. Mary's County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in California?
The average median household income across ZIP codes in California, Maryland is about $116,140, about 4% above the state ZIP average ($111,660), and about 55% above the U.S. median ($75,149). Average median home value is about $349,500. Among ZIPs with data, 20634 is near the top ($117,431) and 20619 is near the bottom ($114,848).
How many ZIP codes are in California?
California, Maryland includes 2 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for California?
This page lists ZIP codes in California, Maryland with population, median household income, and home value. Select a ZIP for a full demographics profile.