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County ZIP codes · Maryland · FIPS 24001

Allegany County, MD ZIP Codes

Allegany County, Maryland has 22 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 16 residential and 6 for PO boxes or a single organization. 13 of the residential ones lie mainly in Allegany County and 3 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $57,708 in 21539 (Lonaconing) to $64,194 in 21521 (Barton) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Allegany County?

21502 · Cumberland: $61k21521 · Barton: $64k21524 · Corriganville: $76k21529 · Ellerslie: $37k21530 · Flintstone: $64k21532 · Frostburg: $64k21539 · Lonaconing: $58k21540 · Luke: $81k21542 · Midland: –21543 · Midlothian: –21545 · Mount Savage: $60k21555 · Oldtown: $53k21557 · Rawlings: $35k21560 · Spring Gap: –21562 · Westernport: $48k21766 · Little Orleans: $62k215022155521532215302153921766215572156221521215452152421502 · Cumberland: $61k21521 · Barton: $64k21524 · Corriganville: $76k21529 · Ellerslie: $37k21530 · Flintstone: $64k21532 · Frostburg: $64k21539 · Lonaconing: $58k21540 · Luke: $81k21542 · Midland: –21543 · Midlothian: –21545 · Mount Savage: $60k21555 · Oldtown: $53k21557 · Rawlings: $35k21560 · Spring Gap: –21562 · Westernport: $48k21766 · Little Orleans: $62k2150221555215322153021539217662155721562215212154521502 · Cumberland: $61k21521 · Barton: $64k21524 · Corriganville: $76k21529 · Ellerslie: $37k21530 · Flintstone: $64k21532 · Frostburg: $64k21539 · Lonaconing: $58k21540 · Luke: $81k21542 · Midland: –21543 · Midlothian: –21545 · Mount Savage: $60k21555 · Oldtown: $53k21557 · Rawlings: $35k21560 · Spring Gap: –21562 · Westernport: $48k21766 · Little Orleans: $62k21502215552153221530215392176621557215622152121545
The residential ZIP codes of Allegany County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $60,264 and $63,542.

They carry 16 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 16 residential ZIP codes in Allegany County

13 ZIP codes lie mainly in Allegany County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Allegany County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
21502 Cumberland 41,015 445 $61k $154k 100%
21532 Frostburg 13,647 184 $64k $182k 54%
21545 Mount Savage 1,694 106 $60k $131k 100%
21557 Rawlings 1,481 55 $35k $123k 100%
21555 Oldtown 1,470 15 $53k $198k 100%
21530 Flintstone 1,404 23 $64k $202k 100%
21766 Little Orleans 854 21 $62k $221k 100%
21524 Corriganville 710 198 $76k $159k 100%
21529 Ellerslie 514 557 $37k $163k 100%
21543 Midlothian 185 75 – $190k 100%
21540 Luke 89 333 $81k $51k 100%
21542 Midland 84 3,818 – $103k 100%
21560 Spring Gap 9 16 – – 100%

Partly in Allegany County

Residential ZIP codes mainly in another county that reach at least 1% into Allegany County, by their share here
In this county
21562 Westernport 3,032 105 $48k $99k 50%
21539 Lonaconing 1,975 53 $58k $130k 43%
21521 Barton 1,400 59 $64k $108k 38%

Download the 22 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

4 ZIP codes of Allegany County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Allegany County and in the neighboring counties
ZIPIn AlleganyElsewhere
2153254%Garrett County 46%
2156250%Garrett County 50%
2153943%Garrett County 57%
2152138%Garrett County 62%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Allegany County without a residential area (GeoNames postal codes)
ZIPPostal name
21501Cumberland
21503Cumberland
21504Cumberland
21505Cumberland
21528Eckhart Mines
21556Pinto

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Allegany County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Allegany County's ZIP codes use 2 prefixes: 215 and 217.

Three-digit prefixes of Allegany County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Allegany County's
PrefixSectional centerHereAll codes
215 Baltimore, MD (SCF 212) 21 30
217 Baltimore, MD (SCF 212) 1 66

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.