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Where am ILOCATED

Montgomery County, Maryland

Montgomery County, Maryland, has 1,074,582 residents (July 2025 estimate). Its county seat is Rockville. It uses Eastern Time and covers 493 sq mi (1,277 km²) of land.

BaltimoreGermantown
Montgomery County in Maryland
Howard CountyLoudoun CountyGermantownSilver SpringGaithersburgBethesdaRockville
Montgomery County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
1,074,582
Land area
493 sq mi (1,277 km²)
County seat or government
Rockville
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$132,450 ± $2,073
Median home value
$640,300 ± $5,098
Median rent, with utilities
$2,068 ± $20
Homes lived in by their owners
65.3% ± 0.6 points
County type
County
Metro or micro area
Washington-Arlington-Alexandria, DC-VA-MD-WV metro areaCentral county
Water area
13.8 sq mi (35.6 km²)
State
Maryland
County code (FIPS)
24031
Coordinates (central point)
39.137381, -77.203063
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 Montgomery 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. 2090670,595 people
  2. 2087866,115 people
  3. 2087462,738 people
  4. 2090458,646 people
  5. 2090254,261 people
  6. 2085450,498 people
  7. 2085050,353 people
  8. 2085248,180 people
  9. 2091045,943 people
  10. 2087738,546 people
  11. 2081737,454 people
  12. 2070737,278 people
All 53
  1. 2090136,435 people
  2. 2088634,718 people
  3. 2177133,031 people
  4. 2081432,795 people
  5. 2085331,851 people
  6. 2081530,505 people
  7. 2087130,182 people
  8. 2070528,713 people
  9. 2087626,406 people
  10. 2091225,749 people
  11. 2083225,553 people
  12. 2087925,264 people
  13. 2090324,815 people
  14. 2089519,184 people
  15. 2090519,004 people
  16. 2081618,140 people
  17. 2085517,279 people
  18. 2086615,986 people
  19. 2085114,946 people
  20. 2087213,983 people
  21. 2088213,751 people
  22. 208419,969 people
  23. 217978,643 people
  24. 208337,860 people
  25. 208376,699 people
  26. 207773,221 people
  27. 208612,890 people
  28. 208422,369 people
  29. 208602,035 people
  30. 208181,539 people
  31. 20896932 people
  32. 20889584 people
  33. 20880577 people
  34. 20862430 people
  35. 20838306 people
  36. 20812276 people
  37. 20868198 people
  38. 20839158 people
  39. 2089957 people
  40. 208920 people
  41. 208940 people

53 ZIP Code areas overlap Montgomery 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.

School districts in Montgomery County, largest first

  1. Montgomery County Public Schools1,065,949 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. Germantown, Maryland (CDP)90,719 people
  2. Silver Spring, Maryland (CDP)81,462 people
  3. Gaithersburg, Maryland (city)69,825 people
  4. Bethesda, Maryland (CDP)69,397 people
  5. Rockville, Maryland (city)67,671 people
  6. Aspen Hill, Maryland (CDP)53,279 people
  7. Wheaton, Maryland (CDP)52,926 people
  8. North Bethesda, Maryland (CDP)49,677 people
  9. Potomac, Maryland (CDP)45,902 people
  10. Olney, Maryland (CDP)35,797 people
  11. Montgomery Village, Maryland (CDP)34,110 people
  12. Clarksburg, Maryland (CDP)30,487 people
All 59
  1. Fairland, Maryland (CDP)26,231 people
  2. North Potomac, Maryland (CDP)23,922 people
  3. Redland, Maryland (CDP)18,665 people
  4. Damascus, Maryland (CDP)17,640 people
  5. Takoma Park, Maryland (city)17,632 people
  6. Calverton, Maryland (CDP)17,624 people
  7. White Oak, Maryland (CDP)17,329 people
  8. Glenmont, Maryland (CDP)17,208 people
  9. Cloverly, Maryland (CDP)16,646 people
  10. Colesville, Maryland (CDP)14,519 people
  11. Flower Hill, Maryland (CDP)13,794 people
  12. Kemp Mill, Maryland (CDP)13,042 people
  13. Travilah, Maryland (CDP)11,721 people
  14. Burtonsville, Maryland (CDP)10,203 people
  15. Chevy Chase, Maryland (CDP)9,445 people
  16. North Kensington, Maryland (CDP)8,954 people
  17. Leisure World, Maryland (CDP)8,882 people
  18. Four Corners, Maryland (CDP)8,150 people

See all 59 cities, towns and communities in Montgomery County, largest first

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Howard County, Maryland17 mi northeast
  2. Arlington County, Virginia19 mi south
  3. District of Columbia19 mi southeast
  4. Fairfax County, Virginia22 mi south
  5. Loudoun County, Virginia24 mi west
  6. Frederick County, Maryland25 mi northwest
  7. Prince George's County, Maryland29 mi southeast

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.