Census tract · Frederick County
Census Tract 7521.01, Frederick County, Maryland
Census Tract 7521.01, GEOID 24021752101, in Frederick County, Maryland, entirely within Green Valley. 3,781 residents in the ACS 2020-2024 5-year estimates (±318); the 2020 Census counted 3,661.
Residents, 2020-2024
3,781
±318 (90% margin)
2020 Census count: 3,661
Median household income
$193,194
±$32,722 (90% margin)
Frederick County: $122,002
Median home value
$655,400
±$47,727 (90% margin)
Frederick County: $464,600
Median gross rent
not published
Frederick County: $1,774
Where is Census Tract 7521.01?
Census Tract 7521.01 is one of 65 census tracts in Frederick County, Maryland. It covers 4.15 square miles of land, 882 residents per square mile in 2020. Its GEOID, 24021752101, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Green Valley | 100% |
3 census tracts border Census Tract 7521.01: Tract 7521.02 ($179,609), Tract 7002.04 in Montgomery County ($130,285) and Tract 7003.17 in Montgomery County ($183,355). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 7521.01?
The 2020-2024 American Community Survey puts Census Tract 7521.01's population at 3,781 (±318) in 1,181 households; the 2020 Census counted 3,661 residents and 1,237 housing units.
| Measure | Tract 7521.01 | Green Valley |
|---|---|---|
| Total population | 3,781 ±318 | 13,602 |
| Households | 1,181 ±90 | 4,246 |
| Average household size | 3.20 ±0.18 | 3.20 |
| Housing units | 1,191 ±93 | 4,309 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 7521.01?
The median resident of Census Tract 7521.01 is 40.1 years old; 25.5% are under 18 and 17.1% are 65 or older. The largest group is non-Hispanic white residents at 66.7%, then Hispanic or Latino residents (of any race) at 11.0%. 10.1% of residents were born outside the United States.
| Measure | Tract 7521.01 | Green Valley |
|---|---|---|
| Median age | 40.1 ±3.2 | 40.9 |
| Under 18 years | 25.5% ±2.9 pts | 21.3% |
| 65 years and over | 17.1% ±3.0 pts | 18.9% |
| Hispanic or Latino (any race) | 11.0% ±6.9 pts | 5.7% |
| White alone, not Hispanic | 66.7% ±9.3 pts | 79.5% |
| Black or African American alone, not Hispanic | 4.3% ±3.3 pts | 5.6% |
| Asian alone, not Hispanic | 7.2% ±3.8 pts | 2.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.1 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.1 pts | 0.0% |
| Two or more races, not Hispanic | 10.4% ±6.4 pts | 6.2% |
| Some other race alone, not Hispanic | 0.4% ±0.6 pts | 0.5% |
| Born outside the United States | 10.1% ±3.6 pts | 7.2% |
| Speak a language other than English at home (age 5+) | 14.0% ±5.2 pts | 9.0% |
| Civilian veterans (age 18+) | 9.8% ±3.7 pts | 5.7% |
| With a disability | 8.5% ±2.8 pts | 10.8% |
| No health insurance coverage | 3.5% ±3.1 pts | 2.5% |
| High school graduate or higher (age 25+) | 98.0% ±1.8 pts | 97.9% |
| Bachelor's degree or higher (age 25+) | 59.0% ±6.7 pts | 49.7% |
| Graduate or professional degree (age 25+) | 28.3% ±5.8 pts | 21.2% |
| Lived in the same house a year earlier | 90.8% ±5.0 pts | 93.0% |
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 Census Tract 7521.01 earn?
Half of the 1,181 households in Census Tract 7521.01 earn less than $193,194 a year (±$32,722), against $122,002 across Frederick County: 2nd highest of the county's 65 tracts with a reliable estimate.
| Measure | Tract 7521.01 | Green Valley |
|---|---|---|
| Median household income | $193,194 ±$32,722 | $171,707 |
| Mean household income | $220,738 ±$33,136 | $190,415 |
| Per capita income | $69,597 ±$9,831 | $59,911 |
| People below the poverty line | 4.1% ±3.1 pts | 2.8% |
| Children under 18 below the poverty line | 0.0% ±4.3 pts | 2.9% |
| Households receiving SNAP | 1.1% ±1.4 pts | 4.4% |
| Households with a computer | 99.2% ±1.1 pts | 99.3% |
| Households with a broadband subscription | 93.4% ±4.3 pts | 97.3% |
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 Census Tract 7521.01?
Owners occupy 97.7% of Census Tract 7521.01's occupied homes and renters 2.3%. The median owner-occupied home is valued at $655,400 by its owner (±$47,727).
| Measure | Tract 7521.01 | Green Valley |
|---|---|---|
| Median home value (owner-occupied) | $655,400 ±$47,727 | $594,300 |
| Renters paying 35% or more of income on rent | 0.0% ±65.3 pts | 0.0% |
| Median monthly owner costs, with a mortgage | $3,208 ±$344 | $2,866 |
| Owner-occupied homes | 97.7% ±2.4 pts | 98.2% |
| Renter-occupied homes | 2.3% ±2.4 pts | 1.8% |
| Housing units | 1,191 ±93 | 4,309 |
| Single-family detached homes | 98.0% ±2.1 pts | 99.1% |
| Mobile homes | 0.0% ±3.5 pts | 0.0% |
| Built 2020 or later | 0.0% ±3.5 pts | 2.4% |
| Built 2010 to 2019 | 10.2% ±4.0 pts | 6.1% |
| Built 1939 or earlier | 2.4% ±2.5 pts | 4.3% |
| Households with no vehicle | 1.5% ±2.0 pts | 1.7% |
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 Census Tract 7521.01 get to work?
53.9% of Census Tract 7521.01's workers drive alone and 31.2% work from home. The average trip to work takes 38.6 minutes.
| Measure | Tract 7521.01 | Green Valley |
|---|---|---|
| In the labor force (age 16+) | 62.9% ±5.4 pts | 65.2% |
| Unemployment rate | 0.7% ±1.0 pts | 3.3% |
| Drove alone to work | 53.9% ±6.7 pts | 68.8% |
| Carpooled | 8.1% ±5.3 pts | 6.5% |
| Public transportation | 0.0% ±2.3 pts | 0.0% |
| Walked | 4.5% ±3.0 pts | 1.6% |
| Worked from home | 31.2% ±7.1 pts | 22.5% |
| Mean travel time to work | 38.6 min ±5.4 | 34.6 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
How does Census Tract 7521.01 compare with the other tracts in Frederick County?
Among Frederick County's tracts with a reliable estimate, Census Tract 7521.01 ranks as shown below (1 = highest).
| Measure | In Frederick County | In Green Valley |
|---|---|---|
| Population | 41st of 65 | 3rd of 3 |
| Residents per square mile | 36th of 65 | 1st of 3 |
| Median household income | 2nd of 65 | 1st of 3 |
| Per capita income | 5th of 65 | 1st of 3 |
| Median home value | 3rd of 65 | 1st of 3 |
| Bachelor's degree or higher | 11th of 65 | 1st of 3 |
| Median age | 27th of 65 | 2nd of 3 |
| Owner-occupied share | 2nd of 65 | 2nd of 3 |
The tracts next to it on Frederick County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 7522.05 | 1st | $197,404±$43,625 · within the margin of this tract |
| Tract 7521.01 | 2nd | $193,194±$32,722 |
| Tract 7756 | 3rd | $181,700±$12,192 · within the margin of this tract |
| Tract 7521.02 | 4th | $179,609±$22,803 · within the margin of this tract |
| Tract 7519.03 | 5th | $178,797±$20,120 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 7521.01?
2 of the 17 figures for Census Tract 7521.01 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.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). 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 · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections