Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/MD/CALIFORNIA

California ZIP code, Maryland

The ZIP code for California, MD is 20619.

USPS city name
1 ZIP code
Overlapping the city
2 more
Population
13,136

Mail addressed to California uses the ZIP code above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

California in numbers

About 13,136 people live in California, in 5,294 households. The median household income is $119,855 a year, 16% above the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $346,800 (17% below the Maryland median), and median gross rent is $1,927 a month. The median age is 35.0; 43.8% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 24 minutes.

Population13,136California13,136
Households5,294California5,294
Median age35.0California35.0Maryland39.4US 38.9
Median household income$119,855California$119,855Maryland$103,678US $80,734
Median home value$346,800California$346,800Maryland$419,900US $332,700
Median gross rent$1,927California$1,927Maryland$1,705US $1,413
Bachelor's degree or higher43.8%California43.8%Maryland43.4%US 35.7%
Mean commute23.7 minCalifornia23.7 minMaryland31.1 minUS 26.4 min
Population density1,021 / sq miCalifornia1,021 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place California CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as California

ZIP codes with the USPS city name California
ZIP City Type Population Median income Median home
20619 California , MD Standard 14,212 $119,432 $376,800

Other ZIP codes overlapping California

These ZIP codes cover part of California but are addressed as somewhere else.

ZIP codes overlapping California
ZIP City Type Population Median income Median home
20634 Great Mills , MD Standard 7,088 $139,375 $342,300
20653 Lexington Park , MD Standard 26,852 $103,048 $353,300

Map of California ZIP codes

20619

The ZIP codes of California, MD, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near California

The nearest larger towns are Lexington Park (13,252 people, 4.2 mi), Cambridge (13,152 people, 29 mi) and Waldorf (82,943 people, 32 mi).

Towns near California
TownPopulationDistance
Wildewood 7,552 3.0 mi
Drum Point 3,589 3.8 mi
Lexington Park 13,252 4.2 mi
Lusby 2,595 5.4 mi
Chesapeake Ranch Estates 9,241 5.8 mi
Leonardtown 4,808 8.0 mi
Golden Beach 3,830 17.4 mi
Prince Frederick 2,955 17.8 mi
Huntingtown 2,689 22.8 mi
Chesapeake Beach 6,456 27.3 mi
Colonial Beach, VA 3,966 27.3 mi
Cambridge 13,152 28.6 mi
Owings 2,643 29.3 mi

More nearby: every ZIP code in St. Mary's County · Maryland ZIP codes

Cite this page

zipcodes.pro. “California, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/california

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