St. James, MD ZIP Codes
3 ZIP codes serve St. James, Maryland: 21740, 21733 and 21781. Together they are home to 66,092 residents in 25,747 households. That is more than the 4,824 people counted inside St. James Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $62,873 in 21740 to $109,896 in 21733.
St. James Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 4,824 |
| Households | 1,654 |
| Median household income | $97,361 |
| Median home value | $409,000 |
| Median age | 40.9 |
| Median rent | $1,289 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 66,092 |
| Households (sum of ZIP codes) | 25,747 |
| Median household income, range across ZIP codes | $62,873 (21740) to $109,896 (21733) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $63,733 |
| Homeowners | 55.8% |
| Households with kids under 18 | 30.2% |
| Moved in the past year | 14.4% |
| Carrier routes in EDDM2GO's route library | 46 routes, 27,214 homes (2 of 3 ZIP codes) |
Top facts
- Highest median household income in St. James: 21733 ($109,896)
- Most residents: 21740 (64,792 people)
- Highest homeownership: 21733 (82.6% own their home)
- Most households with kids: 21740 (30.2% of households)
- Most new movers: 21733 (16.0% moved in last year)
- Youngest median age: 21740 (37.9 years)
- Highest median home value: 21733 ($291,800)
Every ZIP code in St. James
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 21740 | Hagerstown | 64,792 | 25,276 | $62,873 | $262,300 | 55.3% | 30.2% | 14.4% | 45 | 29,238 | 6% of its land |
| 21733 | Fairplay | 1,275 | 471 | $109,896 | $291,800 | 82.6% | 29.5% | 16.0% | 1 | 462 | 31% of its land |
| 21781 | St. James | 25 | 0 | — | — | — | — | 48.0% | — | — | 100% of its land; mailing city |
A ZIP code is listed for St. James when at least 10% of its land lies inside the St. James Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is St. James. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside St. James.
Counties
- Washington County — 19 ZIP codes
Nearby cities sharing these ZIP codes
- Hagerstown — 3 ZIP codes
- Halfway — 2 ZIP codes
Price a mailing to St. James ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in St. James, MD?
- 21740, 21733 and 21781. A ZIP code is listed for St.
- What is the population of St. James, MD?
- The Census Bureau counts 4,824 residents inside St. James Census-designated place (ACS 2020–2024). The 3 ZIP codes that serve St. James hold 66,092 residents in all.
- What is the median household income in St. James, MD?
- $97,361 inside St. James Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $62,873 to $109,896.
- Which St. James ZIP code has the highest median household income?
- 21733, at $109,896, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in St. James, MD?
- For the 2 of 3 ZIP codes in EDDM2GO's stored route library: 46 carrier routes reaching 27,214 residential and 2,488 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.