California, MD ZIP Codes
3 ZIP codes serve California, Maryland: 20653, 20619 and 20634. Together they are home to 48,152 residents in 19,441 households. That is more than the 13,136 people counted inside California Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $103,048 in 20653 to $139,375 in 20634.
California Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 13,136 |
| Households | 5,294 |
| Median household income | $119,855 |
| Median home value | $346,800 |
| Median age | 35 |
| Median rent | $1,927 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 48,152 |
| Households (sum of ZIP codes) | 19,441 |
| Median household income, range across ZIP codes | $103,048 (20653) to $139,375 (20634) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $112,902 |
| Homeowners | 60.6% |
| Households with kids under 18 | 33.4% |
| Moved in the past year | 16.6% |
| Carrier routes in EDDM2GO's route library | 29 routes, 19,325 homes (3 of 3 ZIP codes) |
Top facts
- Highest median household income in California: 20634 ($139,375)
- Most residents: 20653 (26,852 people)
- Highest homeownership: 20634 (65.4% own their home)
- Most households with kids: 20619 (36.0% of households)
- Most new movers: 20619 (20.6% moved in last year)
- Youngest median age: 20634 (32.0 years)
- Highest median home value: 20619 ($376,800)
Every ZIP code in California
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 20653 | Lexington Park | 26,852 | 11,028 | $103,048 | $353,300 | 57.4% | 31.9% | 13.9% | 14 | 10,765 | 12% of its land |
| 20619 | California | 14,212 | 5,719 | $119,432 | $376,800 | 64.5% | 36.0% | 20.6% | 9 | 6,800 | 33% of its land; mailing city |
| 20634 | Great Mills | 7,088 | 2,694 | $139,375 | $342,300 | 65.4% | 33.8% | 18.7% | 6 | 2,864 | 51% of its land |
A ZIP code is listed for California when at least 10% of its land lies inside the California Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is California. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside California.
Counties
- St. Mary's County — 27 ZIP codes
Nearby cities sharing these ZIP codes
- Lexington Park — 1 ZIP code
- Wildewood — 1 ZIP code
Price a mailing to California ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in California, MD?
- 20653, 20619 and 20634. A ZIP code is listed for California when at least 10% of its land lies inside the California Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is California.
- What is the population of California, MD?
- The Census Bureau counts 13,136 residents inside California Census-designated place (ACS 2020–2024). The 3 ZIP codes that serve California hold 48,152 residents in all.
- What is the median household income in California, MD?
- $119,855 inside California Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $103,048 to $139,375.
- Which California ZIP code has the highest median household income?
- 20634, at $139,375, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in California, MD?
- For the 3 of 3 ZIP codes in EDDM2GO's stored route library: 29 carrier routes reaching 19,325 residential and 1,102 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.