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Where am ILOCATED

Frederick County, Maryland

Frederick County, Maryland, has 302,883 residents (July 2025 estimate). Its county seat is Frederick. It uses Eastern Time and covers 661 sq mi (1,711 km²) of land.

BaltimoreColumbia
Frederick County in Maryland
Carroll CountyHoward CountyWashington CountyFrederickBallenger CreekUrbanaGreen Valley
Frederick County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
302,883
Land area
661 sq mi (1,711 km²)
County seat or government
Frederick
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$122,002 ± $2,489
Median home value
$464,600 ± $4,368
Median rent, with utilities
$1,774 ± $37
Homes lived in by their owners
77% ± 0.8 points
County type
County
Metro or micro area
Washington-Arlington-Alexandria, DC-VA-MD-WV metro areaOutlying county
Water area
6.81 sq mi (17.6 km²)
State
Maryland
County code (FIPS)
24021
Coordinates (central point)
39.470176, -77.397636
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Frederick County

Time zoneLocal time and UTC offsetNext clock change
Eastern TimeAmerica/New_YorkUTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 2170249,605 people
  2. 2170143,048 people
  3. 2170341,960 people
  4. 2177133,031 people
  5. 2087130,182 people
  6. 2170420,006 people
  7. 2177417,134 people
  8. 2176911,965 people
  9. 2178811,654 people
  10. 2178711,645 people
  11. 2179310,719 people
  12. 217839,910 people
All 35
  1. 217708,751 people
  2. 217548,156 people
  3. 217167,200 people
  4. 217766,261 people
  5. 217276,052 people
  6. 217555,909 people
  7. 217735,826 people
  8. 217915,340 people
  9. 217104,661 people
  10. 217584,409 people
  11. 217982,928 people
  12. 217572,671 people
  13. 217772,462 people
  14. 208422,369 people
  15. 217802,159 people
  16. 217191,178 people
  17. 21778745 people
  18. 21717245 people
  19. 21790170 people
  20. 21762139 people
  21. 21718134 people
  22. 2171495 people
  23. 217056 people

35 ZIP Code areas overlap Frederick County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Election districts in Frederick County, largest first

  1. District 2, Frederick88,062 people
  2. District 9, New Market37,361 people
  3. District 7, Urbana21,735 people
  4. District 21, Tuscarora14,764 people
  5. District 1, Buckeystown14,735 people
  6. District 3, Middletown10,949 people
  7. District 18, Woodville10,449 people
  8. District 26, Walkersville9,842 people
  9. District 13, Mount Pleasant8,446 people
  10. District 15, Thurmont8,300 people
  11. District 23, Ballenger7,427 people
  12. District 5, Emmitsburg6,798 people
All 26
  1. District 24, Braddock5,805 people
  2. District 14, Jefferson5,604 people
  3. District 25, Brunswick5,296 people
  4. District 12, Petersville5,225 people
  5. District 16, Jackson4,843 people
  6. District 11, Woodsboro3,814 people
  7. District 20, Lewistown3,238 people
  8. District 8, Liberty3,196 people
  9. District 10, Hauvers2,836 people
  10. District 17, Johnsville2,256 people
  11. District 6, Catoctin2,138 people
  12. District 19, Linganore1,461 people
  13. District 4, Creagerstown1,291 people
  14. District 22, Burkittsville1,177 people

People counts are American Community Survey 2020–2024 5-year estimates. All election districts in Maryland, by county

School districts in Frederick County, largest first

  1. Frederick County Public Schools287,048 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Frederick, Maryland (city)83,395 people
  2. Ballenger Creek, Maryland (CDP)26,390 people
  3. Linganore, Maryland (CDP)14,444 people
  4. Urbana, Maryland (CDP)14,260 people
  5. Green Valley, Maryland (CDP)13,602 people
  6. Mount Airy, Maryland (town)9,805 people
  7. Brunswick, Maryland (city)8,450 people
  8. Walkersville, Maryland (town)6,414 people
  9. Thurmont, Maryland (town)6,254 people
  10. Spring Ridge, Maryland (CDP)5,922 people
  11. Middletown, Maryland (town)5,014 people
  12. Monrovia, Maryland (CDP)3,568 people
All 28
  1. Jefferson, Maryland (CDP)3,314 people
  2. Bartonsville, Maryland (CDP)3,282 people
  3. Braddock Heights, Maryland (CDP)2,892 people
  4. Emmitsburg, Maryland (town)2,845 people
  5. Point of Rocks, Maryland (CDP)2,462 people
  6. Myersville, Maryland (town)2,358 people
  7. Adamstown, Maryland (CDP)2,025 people
  8. New Market, Maryland (town)1,603 people
  9. Woodsboro, Maryland (town)1,540 people
  10. Libertytown, Maryland (CDP)1,346 people
  11. Buckeystown, Maryland (CDP)1,192 people
  12. Sabillasville, Maryland (CDP)556 people
  13. Lewistown, Maryland (CDP)362 people
  14. Rosemont, Maryland (village)310 people
  15. Burkittsville, Maryland (town)135 people
  16. Graceham, Maryland (CDP)121 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Carroll County, Maryland21 mi east
  2. Washington County, Maryland24 mi northwest
  3. Montgomery County, Maryland25 mi southeast
  4. Adams County, Pennsylvania29 mi north
  5. Howard County, Maryland29 mi southeast
  6. Loudoun County, Virginia30 mi southwest
  7. Franklin County, Pennsylvania36 mi northwest

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.