Census-designated place · Maryland
Green Valley, Maryland
Green Valley, census-designated place, in Frederick County, Maryland. Green Valley had 13,602 people in the ACS 2020-2024 5-year estimates (±1,421). GEOID 2435412.
Residents, 2020-2024
13,602
±1,421 (90% margin)
2020 Census count: 12,643
Median household income
$171,707
±$16,148 (90% margin)
Maryland: $103,678
Median home value
$594,300
±$32,619 (90% margin)
Maryland: $419,900
Median gross rent
$3,000
±$2,251 (90% margin)
Maryland: $1,705
Where is Green Valley and what county is it in?
Green Valley is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Frederick County, Maryland. It covers 17.1 square miles of land, 740 residents per square mile in 2020.
Green Valley 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 Green Valley, and is it growing?
The 2020-2024 American Community Survey puts Green Valley's population at 13,602 (±1,421). The 2020 Census counted 12,643 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; Green Valley is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Green Valley | Frederick County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 13,602 ±1,421 | 287,048 | – |
| Households | 4,246 ±360 | 104,635 | – |
| Average household size | 3.20 ±0.16 | 2.70 | – |
| Housing units | 4,309 ±353 | 108,924 | – |
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 Green Valley?
The median resident of Green Valley is 40.9 years old; 21.3% are under 18 and 18.9% are 65 or older. The largest group is non-Hispanic white residents at 79.5%, then non-Hispanic residents of two or more races at 6.2%. 7.2% of residents were born outside the United States.
| Measure | Green Valley | Frederick County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 40.9 ±1.6 | 39.0 | – |
| Under 18 years | 21.3% ±2.0 pts | 23.3% | – |
| 65 years and over | 18.9% ±2.7 pts | 15.3% | – |
| Male | 51.9% ±2.1 pts | 49.5% | – |
| Hispanic or Latino (any race) | 5.7% ±2.5 pts | 12.9% | – |
| White alone, not Hispanic | 79.5% ±5.3 pts | 65.7% | – |
| Black or African American alone, not Hispanic | 5.6% ±3.2 pts | 10.1% | – |
| Asian alone, not Hispanic | 2.4% ±1.1 pts | 5.9% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.3 pts | 0.0% | – |
| Two or more races, not Hispanic | 6.2% ±2.8 pts | 5.0% | – |
| Some other race alone, not Hispanic | 0.5% ±0.6 pts | 0.3% | – |
| Born outside the United States | 7.2% ±2.5 pts | 13.8% | – |
| Speak a language other than English at home (age 5+) | 9.0% ±2.7 pts | 17.7% | – |
| Civilian veterans (age 18+) | 5.7% ±1.9 pts | 7.5% | – |
| With a disability | 10.8% ±3.7 pts | 9.9% | – |
| No health insurance coverage | 2.5% ±1.6 pts | 4.7% | – |
| High school graduate or higher (age 25+) | 97.9% ±0.9 pts | 93.4% | – |
| Bachelor's degree or higher (age 25+) | 49.7% ±4.9 pts | 45.8% | – |
| Graduate or professional degree (age 25+) | 21.2% ±3.2 pts | 20.5% | – |
| Lived in the same house a year earlier | 93.0% ±2.6 pts | 89.4% | – |
| Moved from another state in the past year | 1.4% ±0.8 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 Green Valley earn?
Half of Green Valley's 4,246 households earn less than $171,707 a year (±$16,148), against $122,002 in Frederick County and $103,678 in Maryland. 2.8% of residents live below the poverty line.
| Measure | Green Valley | Frederick County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $171,707 ±$16,148 | $122,002 | – |
| Mean household income | $190,415 ±$13,372 | $148,300 | – |
| Per capita income | $59,911 ±$4,915 | $54,982 | – |
| People below the poverty line | 2.8% ±1.5 pts | 6.0% | – |
| Children under 18 below the poverty line | 2.9% ±3.2 pts | 6.8% | – |
| Households receiving SNAP | 4.4% ±2.1 pts | 7.4% | – |
| Households with a computer | 99.3% ±0.7 pts | 96.8% | – |
| Households with a broadband subscription | 97.3% ±1.5 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 Green Valley?
Owners occupy 98.2% of Green Valley's occupied homes and renters 1.8%. The median owner-occupied home is valued at $594,300 by its owner (±$32,619).
| Measure | Green Valley | Frederick County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $594,300 ±$32,619 | $464,600 | – |
| Median gross rent | $3,000 ±$2,251 | $1,774 | – |
| Renters paying 35% or more of income on rent | 0.0% ±46.1 pts | 39.7% | – |
| Median monthly owner costs, with a mortgage | $2,866 ±$165 | $2,449 | – |
| Owner-occupied homes | 98.2% ±1.3 pts | 77.0% | – |
| Renter-occupied homes | 1.8% ±1.3 pts | 23.0% | – |
| Housing units | 4,309 ±353 | 108,924 | – |
| Homeowner vacancy rate | 0.0% ±1.0 pts | 0.4% | – |
| Rental vacancy rate | 0.0% ±38.9 pts | 3.2% | – |
| Single-family detached homes | 99.1% ±0.7 pts | 60.1% | – |
| Mobile homes | 0.0% ±1.0 pts | 0.6% | – |
| Built 2020 or later | 2.4% ±1.5 pts | 4.1% | – |
| Built 2010 to 2019 | 6.1% ±2.6 pts | 12.3% | – |
| Built 1939 or earlier | 4.3% ±3.1 pts | 10.8% | – |
| Households with no vehicle | 1.7% ±1.3 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 Green Valley work and get to work?
68.8% of Green Valley's workers drive alone and 22.5% work from home. The average trip to work takes 34.6 minutes.
| Measure | Green Valley | Frederick County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 65.2% ±5.0 pts | 69.9% | – |
| Unemployment rate | 3.3% ±2.5 pts | 3.3% | – |
| Drove alone to work | 68.8% ±4.1 pts | 67.5% | – |
| Carpooled | 6.5% ±2.3 pts | 7.2% | – |
| Public transportation | 0.0% ±0.6 pts | 1.1% | – |
| Walked | 1.6% ±1.0 pts | 1.8% | – |
| Worked from home | 22.5% ±3.5 pts | 21.2% | – |
| Mean travel time to work | 34.6 min ±2.5 | 33.1 min | – |
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 Green Valley?
2 census tracts lie mostly in Green Valley, and 3 more reach into it (2020 census blocks). Their median household incomes run from $178,797 (Tract 7519.03) to $193,194 (Tract 7521.01).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 7519.03Frederick County | 7,473 | $178,797 |
| Tract 7521.01Frederick County | 3,781 | $193,194 |
| Tract 7521.02Frederick County | 8,071 | $179,609 |
| Tract 7518.02Frederick County | 3,960 | $164,706 |
| Tract 7520.01Frederick County | 5,360 | $163,681 |
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 Green Valley) · Census block assignment files
How does Green Valley compare with other places in Maryland?
Green Valley ranks 39th of 322 places in Maryland with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 108th | 326 |
| Residents per square mile | 287th | 326 |
| Median household income | 39th | 322 |
| Per capita income | 93rd | 326 |
| Median home value | 54th | 323 |
| Poverty rate | 219th | 230 |
| Bachelor's degree or higher | 101st | 325 |
| Median age | 138th | 326 |
| Owner-occupied share | 5th | 323 |
| Work from home | 96th | 293 |
| Travel time to work | 93rd | 325 |
Green Valley's figures with every place in Maryland (CSV)
Every place in Maryland, sortable · Compare Green Valley 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 Green Valley?
14 of the 57 figures for Green Valley 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 Green Valley 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' school search.