| ZIP Codes: | 22 ZIP Codes (11 Standard, 11 PO Box, 0 Unique) [See All] |
| Area Codes: | 227 / 240 / 301 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:28 PM |
| Population: | 69,563 [See All] |
| FIPS: | 24001 |
| CBSA: | Cumberland, MD-WV |
| Land Area: | 511 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 39.6133, -78.8265 |
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69,563 residents live across 22 ZIPs covering 511 sq mi, served by 18 distinct USPS-recognized cities.
Population moved from 76,084 to 69,554 from 2014 to 2024 — a -8.6% change. 5 ZIPs gained residents, 10 lost.
The county's wealthiest ZIP 21524 (Corriganville, $76,417 median) and poorest ZIP 21557 (Rawlings, $34,936) are 14.7 miles apart — a 2.2× income gap across local geography.
Median home values vary 2.2× across this county — from $98,500 in 21562 (Westernport) to $221,100 in 21766 (Little Orleans).
Density varies 248× across the county — from 14 people/sq mi in 21555 (Oldtown) to 3,597 in 21524 (Corriganville).
Educational attainment ranges from 6.4% bachelor's+ in 21529 (Ellerslie) to 31.5% in 21766 (Little Orleans) — the breadth of educational profiles across the area.
Within Maryland, this is the #16 most populous of 24 counties and ranks #24 for median household income .
Weighted by population, the typical household earns about $60,080 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.0% of adults age 25+ hold a bachelor's degree or higher (10,373 of 49,425 reporting).
11 Standard delivery, 11 PO Box only, 0 single-entity Unique ZIPs serve this county.
Allegany County lost 8.6% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 21502 | Cumberland | Standard | 41,015 | $60,725 | 97.8 | -5.8% |
| 21532 | Frostburg | Standard | 13,647 | $63,690 | 74.0 | -12.4% |
| 21562 | Westernport | Standard | 3,032 | $47,500 | 32.9 | 1.3% |
| 21539 | Lonaconing | Standard | 1,975 | $57,708 | 38.7 | -29.1% |
| 21545 | Mount Savage | Standard | 1,694 | $60,264 | 15.2 | -15.8% |
| 21557 | Rawlings | Standard | 1,481 | $34,936 | 24.0 | -26.5% |
| 21555 | Oldtown | Standard | 1,470 | $53,266 | 101.4 | -21.0% |
| 21530 | Flintstone | Standard | 1,404 | $63,542 | 61.9 | -16.7% |
| 21521 | Barton | Standard | 1,400 | $64,194 | 16.9 | 11.5% |
| 21766 | Little Orleans | Standard | 854 | $62,054 | 44.8 | 71.8% |
| 21524 | Corriganville | PO Box | 710 | $76,417 | 0.2 | 43.4% |
| 21529 | Ellerslie | PO Box | 514 | $37,240 | 0.9 | -5.9% |
| 21543 | Midlothian | PO Box | 185 | — | 2.2 | 143.4% |
| 21540 | Luke | Standard | 89 | $81,250 | 0.3 | -2.2% |
| 21542 | Midland | PO Box | 84 | — | 0.0 | -86.9% |
| 21560 | Spring Gap | PO Box | 9 | — | 0.0 | — |
| 21556 | Pinto | PO Box | — | — | 0.0 | — |
| 21505 | Cumberland | PO Box | — | — | 0.0 | — |
| 21501 | Cumberland | PO Box | — | — | 0.0 | — |
| 21528 | Eckhart Mines | PO Box | — | — | 0.0 | — |
| 21504 | Cumberland | PO Box | — | — | 0.0 | — |
| 21503 | Cumberland | PO Box | — | — | 0.0 | — |