Callaway, MD ZIP Codes
2 ZIP codes serve Callaway, Maryland: 20650 and 20620. Together they are home to 17,209 residents in 6,031 households. That is more than the 930 people counted inside Callaway Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $143,116 in 20650 to $165,972 in 20620.
Callaway Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 930 |
| Households | 412 |
| Median household income | $160,341 |
| Median home value | $364,700 |
| Median age | 46.2 |
| Median rent | not published |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 17,209 |
| Households (sum of ZIP codes) | 6,031 |
| Median household income, range across ZIP codes | $143,116 (20650) to $165,972 (20620) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $144,590 |
| Homeowners | 79.8% |
| Households with kids under 18 | 37.5% |
| Moved in the past year | 12.0% |
| Carrier routes in EDDM2GO's route library | 11 routes, 6,188 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Callaway: 20620 ($165,972)
- Most residents: 20650 (16,094 people)
- Highest homeownership: 20620 (96.4% own their home)
- Most households with kids: 20650 (39.1% of households)
- Most new movers: 20650 (12.4% moved in last year)
- Youngest median age: 20650 (38.6 years)
- Highest median home value: 20650 ($481,700)
Every ZIP code in Callaway
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 20650 | Leonardtown | 16,094 | 5,642 | $143,116 | $481,700 | 78.7% | 39.1% | 12.4% | 10 | 5,932 | 1% of its land |
| 20620 | Callaway | 1,115 | 389 | $165,972 | $391,300 | 96.4% | 13.6% | 6.1% | 1 | 527 | 92% of its land; mailing city |
A ZIP code is listed for Callaway when at least 10% of its land lies inside the Callaway Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Callaway. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Callaway.
Counties
- St. Mary's County — 27 ZIP codes
Price a mailing to Callaway ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Callaway, MD?
- 20650 and 20620. A ZIP code is listed for Callaway when at least 10% of its land lies inside the Callaway Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Callaway.
- What is the population of Callaway, MD?
- The Census Bureau counts 930 residents inside Callaway Census-designated place (ACS 2020–2024). The 2 ZIP codes that serve Callaway hold 17,209 residents in all.
- What is the median household income in Callaway, MD?
- $160,341 inside Callaway Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $143,116 to $165,972.
- Which Callaway ZIP code has the highest median household income?
- 20620, at $165,972, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Callaway, MD?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 11 carrier routes reaching 6,188 residential and 271 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.