Mechanicsville, MD ZIP Codes
One ZIP code serves Mechanicsville, Maryland: 20659. Together they are home to 24,324 residents in 8,300 households. That is more than the 1,395 people counted inside Mechanicsville Census-designated place, because these ZIP codes reach past its boundary.
Mechanicsville Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 1,395 |
| Households | 515 |
| Median household income | $120,966 |
| Median home value | $416,100 |
| Median age | 39.9 |
| Median rent | $1,511 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 24,324 |
| Households (sum of ZIP codes) | 8,300 |
| Median household income, range across ZIP codes | $121,654 (20659) to $121,654 (20659) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $121,654 |
| Homeowners | 88.6% |
| Households with kids under 18 | 40.9% |
| Moved in the past year | 6.5% |
| Carrier routes in EDDM2GO's route library | 15 routes, 8,521 homes (1 of 1 ZIP codes) |
Every ZIP code in Mechanicsville
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 20659 | Mechanicsville | 24,324 | 8,300 | $121,654 | $416,900 | 88.6% | 40.9% | 6.5% | 15 | 8,709 | 5% of its land; mailing city |
A ZIP code is listed for Mechanicsville when at least 10% of its land lies inside the Mechanicsville Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Mechanicsville. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Mechanicsville.
Counties
- St. Mary's County — 27 ZIP codes
Price a mailing to Mechanicsville ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Mechanicsville, MD?
- 20659. A ZIP code is listed for Mechanicsville when at least 10% of its land lies inside the Mechanicsville Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Mechanicsville.
- What is the population of Mechanicsville, MD?
- The Census Bureau counts 1,395 residents inside Mechanicsville Census-designated place (ACS 2020–2024). The 1 ZIP code that serve Mechanicsville hold 24,324 residents in all.
- What is the median household income in Mechanicsville, MD?
- $120,966 inside Mechanicsville Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $121,654 to $121,654.
- How many carrier routes and mailboxes are in Mechanicsville, MD?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 15 carrier routes reaching 8,521 residential and 186 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.