Village · Maryland
Rosemont, Maryland
Rosemont, village, in Frederick County, Maryland. Rosemont had 258 residents on July 1, 2025 by the Census Bureau's estimate, up 0.8% from the Bureau's April 2020 estimates base of 256; the 2020 Census counted 272 on the place as it was defined then and the ACS 2020-2024 5-year estimates put it at 310 (±102). GEOID 2468600.
Residents, July 2025 estimate
258
Census Bureau estimate (no margin published)
2020 Census count: 272 · ACS 2020-2024: 310 ±102
Median household income
$106,250
±$19,251 (90% margin)
Maryland: $103,678
Median home value
$437,900
±$52,737 (90% margin)
Maryland: $419,900
Median gross rent
not published
Maryland: $1,705
Where is Rosemont and what county is it in?
Rosemont is a village in Frederick County, Maryland. It covers 0.6 square miles of land, 489 residents per square mile in 2020.
Rosemont is in the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan statistical area, which takes in 23 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Rosemont, and is it growing?
The Census Bureau estimates that 258 people lived in Rosemont on July 1, 2025, up 0.8% since 2020, slower than Maryland (+1.4%). The Census Bureau's yearly estimates start from its own April 2020 base for Rosemont, 256, which differs from the 2020 Census count of 272: the estimates follow the place as the estimates program defines it today (its present boundaries, and for a consolidated city-county the area the program assigns it), so the change since 2020 is measured from that base. The 2020-2024 American Community Survey, a five-year sample, puts the population at 310 (±102).
| Measure | Rosemont | Frederick County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 310 ±102 | 287,048 | no clear change |
| Households | 133 ±41 | 104,635 | no clear change |
| Average household size | 2.33 ±0.31 | 2.70 | no clear change |
| Housing units | 142 ±44 | 108,924 | no clear change |
Rosemont's population since 2000
From 273 in 2000 to 258 in 2025: down 5.5%. The 2000, 2010 and 2020 figures are census counts, each for Rosemont as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Rosemont?
The median resident of Rosemont is 56.0 years old; 11.0% are under 18 and 36.1% are 65 or older. The largest group is non-Hispanic white residents at 92.3%, then non-Hispanic residents of two or more races at 3.2%.
| Measure | Rosemont | Frederick County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 56.0 ±11.7 | 39.0 | no clear change |
| Under 18 years | 11.0% ±6.8 pts | 23.3% | – |
| 65 years and over | 36.1% ±9.7 pts | 15.3% | – |
| Male | 55.2% ±6.7 pts | 49.5% | – |
| Hispanic or Latino (any race) | 2.3% ±3.2 pts | 12.9% | – |
| White alone, not Hispanic | 92.3% ±5.5 pts | 65.7% | no clear change |
| Black or African American alone, not Hispanic | 2.3% ±2.2 pts | 10.1% | – |
| Asian alone, not Hispanic | 0.0% ±12.8 pts | 5.9% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±12.8 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±12.8 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.2% ±3.6 pts | 5.0% | – |
| Some other race alone, not Hispanic | 0.0% ±12.8 pts | 0.3% | – |
| Born outside the United States | 1.6% ±2.6 pts | 13.8% | – |
| Speak a language other than English at home (age 5+) | 0.3% ±0.7 pts | 17.7% | – |
| Civilian veterans (age 18+) | 8.3% ±4.8 pts | 7.5% | – |
| With a disability | 13.2% ±6.4 pts | 9.9% | – |
| No health insurance coverage | 1.0% ±1.7 pts | 4.7% | – |
| High school graduate or higher (age 25+) | 94.7% ±3.2 pts | 93.4% | – |
| Bachelor's degree or higher (age 25+) | 32.5% ±10.6 pts | 45.8% | no clear change |
| Graduate or professional degree (age 25+) | 18.7% ±8.4 pts | 20.5% | – |
| Lived in the same house a year earlier | 95.2% ±4.5 pts | 89.4% | – |
| Moved from another state in the past year | 0.6% ±1.0 pts | 2.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Rosemont earn?
Half of Rosemont's 133 households earn less than $106,250 a year (±$19,251), against $122,002 in Frederick County and $103,678 in Maryland. In 2015-2019 it was $116,916 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Rosemont | Frederick County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $106,250 ±$19,251 | $122,002 | no clear change |
| Mean household income | $110,992 ±$15,110 | $148,300 | – |
| Per capita income | $50,108 ±$6,975 | $54,982 | no clear change |
| People below the poverty line | 9.4% ±7.0 pts | 6.0% | – |
| Children under 18 below the poverty line | 0.0% ±58.2 pts | 6.8% | – |
| Households receiving SNAP | 6.0% ±6.6 pts | 7.4% | – |
| Households with a computer | 95.5% ±4.0 pts | 96.8% | – |
| Households with a broadband subscription | 93.2% ±5.7 pts | 93.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Rosemont?
Owners occupy 97.0% of Rosemont's occupied homes and renters 3.0%. The median owner-occupied home is valued at $437,900 by its owner (±$52,737).
| Measure | Rosemont | Frederick County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $437,900 ±$52,737 | $464,600 | +$79,768 |
| Renters paying 35% or more of income on rent | 100.0% ±100.0 pts | 39.7% | – |
| Median monthly owner costs, with a mortgage | $2,108 ±$274 | $2,449 | – |
| Owner-occupied homes | 97.0% ±3.5 pts | 77.0% | no clear change |
| Renter-occupied homes | 3.0% ±3.5 pts | 23.0% | – |
| Housing units | 142 ±44 | 108,924 | no clear change |
| Homeowner vacancy rate | 0.0% ±26.3 pts | 0.4% | – |
| Rental vacancy rate | 0.0% ±100.0 pts | 3.2% | – |
| Single-family detached homes | 100.0% ±25.4 pts | 60.1% | – |
| Mobile homes | 0.0% ±25.4 pts | 0.6% | – |
| Built 2020 or later | 0.0% ±25.4 pts | 4.1% | – |
| Built 2010 to 2019 | 5.6% ±6.3 pts | 12.3% | – |
| Built 1939 or earlier | 38.0% ±14.4 pts | 10.8% | – |
| Households with no vehicle | 1.5% ±2.5 pts | 4.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Rosemont work and get to work?
63.3% of Rosemont's workers drive alone and 27.3% work from home. The average trip to work takes 36.0 minutes.
| Measure | Rosemont | Frederick County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 50.7% ±10.4 pts | 69.9% | – |
| Unemployment rate | 0.7% ±1.8 pts | 3.3% | – |
| Drove alone to work | 63.3% ±15.6 pts | 67.5% | – |
| Carpooled | 6.5% ±6.6 pts | 7.2% | – |
| Public transportation | 0.7% ±1.5 pts | 1.1% | – |
| Walked | 2.2% ±2.5 pts | 1.8% | – |
| Worked from home | 27.3% ±17.1 pts | 21.2% | – |
| Mean travel time to work | 36.0 min ±5.9 | 33.1 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Rosemont?
No census tract lies mostly in Rosemont; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 7753.02Frederick County | 6,328 | $135,110 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Rosemont) · Census block assignment files
How does Rosemont compare with other places in Maryland?
By the Census Bureau's July 2025 estimates, Rosemont is the 15,670th-most populous of the 19,476 U.S. incorporated places that have one and the 139th-most populous of 157 in Maryland.
Rosemont is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 139th | 157 |
Rosemont's figures with every place in Maryland (CSV)
Every place in Maryland, sortable · Compare Rosemont with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Rosemont?
26 of the 56 figures for Rosemont on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Rosemont are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Rosemont.