Frederick
Source:
Maryland
Frederick is a mid-size county in Maryland with 28 ZIP codes, 247,113 people, and top-decile household income among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.
National county placement
According to ACS 5-Year Estimates, Frederick, MD sits among US counties with a top-decile household income, on a mid-size county population base, across a multi-ZIP patchwork.
- Top 1%
- household income vs 3,210 US counties
- 247,113
- combined ZIP population
- 28
- USPS ZIP codes covered
- $129,049
- avg ZIP median income
Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.
Frederick lands in the national county income distribution as top-decile household income on mid-size county footing (FIPS 24021, 28 ZIPs, combined population 247,113). Sort the ZIP table by population before treating the county mean as uniform.
High-income counties with wide ZIP mosaics hide sharp internal gradients. The densest ZIP here is 21702 (Frederick) with 38,847 residents - open it beside a thin rural code from the table before treating the county mean as uniform. HUD Fair Market Rents and FBI county tables attach to FIPS 24021, so scorecards stay county-keyed while household income stays ZIP-keyed.
Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.
28
Total ZIPs
247,113
Total Population
ZIP Codes in Frederick
Side-by-side: Compare 21702 vs 21701 →
| ZIP Code | City | Population | Density |
|---|---|---|---|
| 21702 | Frederick | 38,847 | 371 |
| 21701 | Frederick | 35,293 | 350 |
| 21703 | Frederick | 32,854 | 381 |
| 21771 | Mount Airy | 29,563 | 134 |
| 21704 | Frederick | 13,321 | 197 |
| 21774 | New Market | 11,662 | 313 |
| 21788 | Thurmont | 11,622 | 67 |
| 21769 | Middletown | 11,236 | 106 |
| 21793 | Walkersville | 9,775 | 185 |
| 21754 | Ijamsville | 6,323 | 103 |
| 21727 | Emmitsburg | 5,850 | 71 |
| 21755 | Jefferson | 5,591 | 63 |
| 21773 | Myersville | 5,460 | 54 |
| 21770 | Monrovia | 5,164 | 181 |
| 21758 | Knoxville | 4,921 | 59 |
| 21716 | Brunswick | 4,885 | 585 |
| 21710 | Adamstown | 4,515 | 68 |
| 21757 | Keymar | 3,036 | 31 |
| 21798 | Woodsboro | 2,345 | 55 |
| 21780 | Sabillasville | 1,625 | 28 |
| 21777 | Point Of Rocks | 1,470 | 260 |
| 21778 | Rocky Ridge | 1,094 | 24 |
| 21762 | Libertytown | 249 | 261 |
| 21718 | Burkittsville | 151 | 128 |
| 21790 | Tuscarora | 100 | 10 |
| 21714 | Braddock Heights | 99 | 1,320 |
| 21717 | Buckeystown | 54 | 57 |
| 21705 | Frederick | 8 | 131 |
Frequently Asked Questions
What is the population of Frederick?
Frederick has a total population of 247,113 across 28 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Frederick?
Frederick includes 28 ZIP codes: 21702, 21701, 21703, 21771, 21704, 21774, 21788, 21769, 21793, 21754, and more.