Frederick County, MD ZIP Codes
33 ZIP codes cover all or part of Frederick County, Maryland. The Census Bureau counts 287,048 residents in the county, with a median household income of $122,002 and a median home value of $464,600. Median household income ranges from $83,785 in 21780 to $204,013 in 20842. Its largest communities include Frederick, Ballenger Creek, Linganore, Urbana and Green Valley.
Frederick County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 287,048 |
| Households | 104,635 |
| Median household income | $122,002 |
| Median home value | $464,600 |
| Median age | 39 |
| Median rent | $1,774 |
All 33 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 337,365 |
| Households (sum of ZIP codes) | 122,990 |
| Median household income, range across ZIP codes | $83,785 (21780) to $204,013 (20842) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $124,640 |
| Homeowners | 78.2% |
| Households with kids under 18 | 35.4% |
| Moved in the past year | 10.4% |
| Carrier routes in EDDM2GO's route library | 205 routes, 113,341 homes (28 of 33 ZIP codes) |
Top facts
- Highest median household income in Frederick County: 20842 ($204,013)
- Most residents: 21702 (49,605 people)
- Highest homeownership: 21770 (98.8% own their home)
- Most households with kids: 21704 (56.4% of households)
- Most new movers: 21727 (18.1% moved in last year)
- Youngest median age: 21727 (29.5 years)
- Highest median home value: 20842 ($745,800)
Every ZIP code in Frederick County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 21702 | Frederick | 49,605 | 18,525 | $106,983 | $426,300 | 65.2% | 34.6% | 12.6% | 31 | 20,856 | 100% of its land |
| 21701 | Frederick | 43,048 | 18,651 | $106,577 | $435,000 | 66.2% | 26.4% | 12.9% | 35 | 22,204 | 100% of its land |
| 21703 | Frederick | 41,960 | 15,517 | $106,334 | $384,600 | 66.5% | 42.1% | 13.1% | — | — | 100% of its land |
| 21771 | Mount Airy | 33,031 | 11,226 | $157,302 | $556,200 | 94.0% | 35.1% | 9.7% | 20 | 11,600 | 51% of its land |
| 21704 | Frederick | 20,006 | 6,136 | $161,063 | $612,000 | 82.0% | 56.4% | 9.0% | 14 | 8,720 | 100% of its land |
| 21774 | New Market | 17,134 | 5,647 | $171,103 | $541,000 | 93.5% | 47.7% | 8.6% | 10 | 6,773 | 100% of its land |
| 21769 | Middletown | 11,965 | 4,146 | $151,563 | $507,000 | 87.0% | 36.5% | 5.9% | 8 | 4,551 | 99% of its land |
| 21788 | Thurmont | 11,654 | 4,649 | $98,856 | $379,200 | 82.1% | 29.8% | 15.3% | 8 | 4,916 | 100% of its land |
| 21787 | Taneytown | 11,645 | 4,431 | $91,682 | $355,000 | 78.4% | 34.8% | 7.4% | 9 | 4,781 | 13% of its land |
| 21793 | Walkersville | 10,719 | 3,890 | $121,971 | $459,400 | 88.1% | 34.0% | 7.4% | 6 | 3,938 | 100% of its land |
| 21783 | Smithsburg | 9,910 | 3,632 | $100,750 | $339,800 | 81.7% | 30.5% | 6.7% | 6 | 3,384 | 27% of its land |
| 21770 | Monrovia | 8,751 | 2,622 | $183,571 | $632,500 | 98.8% | 47.7% | 6.4% | 6 | 3,064 | 100% of its land |
| 21754 | Ijamsville | 8,156 | 2,660 | $182,188 | $647,300 | 96.2% | 40.6% | 6.6% | 6 | 2,752 | 100% of its land |
| 21716 | Brunswick | 7,200 | 2,924 | $109,382 | $361,300 | 85.1% | 26.6% | 8.5% | 6 | 3,495 | 100% of its land |
| 21776 | New Windsor | 6,261 | 2,346 | $133,409 | $461,600 | 93.2% | 29.7% | 10.1% | 5 | 2,136 | 21% of its land |
| 21727 | Emmitsburg | 6,052 | 1,673 | $95,236 | $331,100 | 76.4% | 27.7% | 18.1% | 3 | 1,543 | 100% of its land |
| 21755 | Jefferson | 5,909 | 2,136 | $137,417 | $529,600 | 86.6% | 26.8% | 7.3% | 4 | 2,318 | 100% of its land |
| 21773 | Myersville | 5,826 | 1,997 | $161,908 | $544,400 | 93.6% | 31.6% | 3.7% | 3 | 1,969 | 100% of its land |
| 21791 | Union Bridge | 5,340 | 1,968 | $93,015 | $379,800 | 81.7% | 34.5% | 5.7% | 4 | 1,858 | 61% of its land |
| 21710 | Adamstown | 4,661 | 1,672 | $163,864 | $591,100 | 84.0% | 27.3% | 6.9% | 3 | 1,735 | 100% of its land |
| 21758 | Knoxville | 4,409 | 1,588 | $111,528 | $424,600 | 84.4% | 32.6% | 6.4% | 4 | 1,869 | 50% of its land |
| 21798 | Woodsboro | 2,928 | 929 | $116,607 | $498,400 | 79.3% | 41.4% | 9.3% | 2 | 941 | 100% of its land |
| 21757 | Keymar | 2,671 | 1,018 | $100,500 | $466,100 | 82.4% | 23.1% | 9.3% | 3 | 1,123 | 48% of its land |
| 21777 | Point Of Rocks | 2,462 | 817 | $159,708 | $480,500 | 97.6% | 40.6% | 12.4% | 2 | 636 | 100% of its land |
| 20842 | Dickerson | 2,369 | 802 | $204,013 | $745,800 | 82.4% | 34.2% | 10.5% | 2 | 780 | 23% of its land |
| 21780 | Sabillasville | 2,159 | 781 | $83,785 | $451,600 | 73.0% | 24.8% | 15.2% | 2 | 678 | 96% of its land |
| 21778 | Rocky Ridge | 745 | 332 | $76,458 | $382,100 | 81.3% | 16.0% | 1.2% | 1 | 451 | 100% of its land |
| 21717 | Buckeystown | 245 | 81 | $158,413 | $430,600 | 100.0% | 46.9% | 0.0% | — | — | 100% of its land |
| 21790 | Tuscarora | 170 | 35 | $77,656 | — | 0.0% | 51.4% | 0.0% | 1 | 58 | 100% of its land |
| 21762 | Libertytown | 139 | 50 | — | — | 100.0% | 0.0% | 100.0% | — | — | 100% of its land |
| 21718 | Burkittsville | 134 | 64 | $93,500 | $576,400 | 70.3% | 15.6% | 6.0% | 1 | 33 | 100% of its land |
| 21714 | Braddock Heights | 95 | 45 | $161,806 | $415,600 | 100.0% | 0.0% | 0.0% | — | — | 100% of its land |
| 21705 | Frederick | 6 | 0 | — | — | — | — | 16.7% | — | — | 100% of its land |
A ZIP code is listed for Frederick County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Frederick — 83,395 residents · 5 ZIP codes
- Ballenger Creek — 26,390 residents · 2 ZIP codes
- Linganore — 14,444 residents · 1 ZIP code
- Urbana — 14,260 residents · 2 ZIP codes
- Green Valley — 13,602 residents · 3 ZIP codes
- Mount Airy — 9,805 residents · 1 ZIP code
- Brunswick — 8,450 residents · 2 ZIP codes
- Walkersville — 6,414 residents · 1 ZIP code
- Thurmont — 6,254 residents · 1 ZIP code
- Spring Ridge — 5,922 residents · 1 ZIP code
- Middletown — 5,014 residents · 1 ZIP code
- Monrovia — 3,568 residents · 1 ZIP code
- Jefferson — 3,314 residents · 1 ZIP code
- Bartonsville — 3,282 residents · 2 ZIP codes
- Braddock Heights — 2,892 residents · 3 ZIP codes
- Emmitsburg — 2,845 residents · 1 ZIP code
- Point of Rocks — 2,462 residents · 1 ZIP code
- Myersville — 2,358 residents · 1 ZIP code
- Adamstown — 2,025 residents · 1 ZIP code
- New Market — 1,603 residents · 2 ZIP codes
- Woodsboro — 1,540 residents · 1 ZIP code
- Libertytown — 1,346 residents · 3 ZIP codes
- Buckeystown — 1,192 residents · 2 ZIP codes
- Union Bridge — 1,055 residents · 1 ZIP code
- Sabillasville — 556 residents · 1 ZIP code
- Lewistown — 362 residents · 1 ZIP code
- Rosemont — 310 residents · 1 ZIP code
- Garretts Mill — 244 residents · 1 ZIP code
- Sandy Hook — 165 residents · 1 ZIP code
- Burkittsville — 135 residents · 2 ZIP codes
Rankings
- Richest ZIP codes in Frederick County — 26 ZIP codes ranked
- ZIP codes with the highest home values in Frederick County — 26 ZIP codes ranked
- ZIP codes with the highest homeownership in Frederick County — 26 ZIP codes ranked
- ZIP codes with the most families with kids in Frederick County — 26 ZIP codes ranked
- ZIP codes with the most new movers in Frederick County — 26 ZIP codes ranked
- Youngest ZIP codes in Frederick County — 26 ZIP codes ranked
- Oldest ZIP codes in Frederick County — 26 ZIP codes ranked
- Fastest-growing ZIP codes in Frederick County — 26 ZIP codes ranked
Price a mailing to Frederick County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Frederick County, MD?
- 21702, 21701, 21703, 21771, 21704, 21774, 21769, 21788, 21787, 21793, 21783, 21770, 21754, 21716, 21776, 21727, 21755, 21773, 21791, 21710, 21758, 21798, 21757, 21777, 20842, 21780, 21778, 21717, 21790, 21762, 21718, 21714 and 21705. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Frederick County?
- 287,048 residents in 104,635 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Frederick County?
- $122,002 for the county as a whole. Its ZIP codes range from $83,785 (21780) to $204,013 (20842).
- Which Frederick County ZIP code has the highest median household income?
- 20842, at $204,013, among ZIP codes with at least 1,000 residents. See the full ranking of Frederick County ZIP codes by income.
- How many carrier routes and mailboxes are in Frederick County?
- For the 28 of 33 ZIP codes in EDDM2GO's stored route library: 205 carrier routes reaching 113,341 residential and 5,843 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.