Census tract · Baltimore County
Census Tract 4102, Baltimore County, Maryland
Census Tract 4102, GEOID 24005410200, in Baltimore County, Maryland, outside any city, town or census-designated place. 5,077 residents in the ACS 2020-2024 5-year estimates (±464); the 2020 Census counted 5,175.
Residents, 2020-2024
5,077
±464 (90% margin)
2020 Census count: 5,175
Median household income
$186,071
±$28,037 (90% margin)
Baltimore County: $91,768
Median home value
$664,000
±$30,759 (90% margin)
Baltimore County: $349,300
Median gross rent
not published
Baltimore County: $1,627
Where is Census Tract 4102?
Census Tract 4102 is one of 219 census tracts in Baltimore County, Maryland. It covers 12.99 square miles of land, 398 residents per square mile in 2020. Its GEOID, 24005410200, names it uniquely (how tract numbers and GEOIDs work).
5 census tracts border Census Tract 4102: Tract 4085.02 ($121,250), Tract 4101 ($168,846), Tract 4112.01 ($149,808), Tract 4112.02 ($162,050) and Tract 3042.01 in Harford County ($147,500). 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 4102?
The 2020-2024 American Community Survey puts Census Tract 4102's population at 5,077 (±464) in 1,726 households; the 2020 Census counted 5,175 residents and 1,857 housing units.
| Measure | Tract 4102 | Baltimore County |
|---|---|---|
| Total population | 5,077 ±464 | 850,796 |
| Households | 1,726 ±148 | 332,801 |
| Average household size | 2.94 ±0.18 | 2.50 |
| Housing units | 1,762 ±143 | 350,821 |
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 4102?
The median resident of Census Tract 4102 is 47.5 years old; 23.9% are under 18 and 22.2% are 65 or older. The largest group is non-Hispanic white residents at 91.0%, then non-Hispanic Asian residents at 2.5%. 4.1% of residents were born outside the United States.
| Measure | Tract 4102 | Baltimore County |
|---|---|---|
| Median age | 47.5 ±2.4 | 39.7 |
| Under 18 years | 23.9% ±3.0 pts | 21.9% |
| 65 years and over | 22.2% ±3.1 pts | 18.1% |
| Hispanic or Latino (any race) | 2.2% ±2.1 pts | 7.8% |
| White alone, not Hispanic | 91.0% ±3.4 pts | 51.1% |
| Black or African American alone, not Hispanic | 1.4% ±0.8 pts | 30.1% |
| Asian alone, not Hispanic | 2.5% ±1.8 pts | 6.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.2 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 2.0% ±1.7 pts | 4.1% |
| Some other race alone, not Hispanic | 0.9% ±1.0 pts | 0.6% |
| Born outside the United States | 4.1% ±1.9 pts | 13.2% |
| Speak a language other than English at home (age 5+) | 8.4% ±3.6 pts | 15.8% |
| Civilian veterans (age 18+) | 5.5% ±1.9 pts | 5.8% |
| With a disability | 7.9% ±2.3 pts | 12.1% |
| No health insurance coverage | 0.9% ±0.8 pts | 5.4% |
| High school graduate or higher (age 25+) | 98.8% ±1.1 pts | 91.7% |
| Bachelor's degree or higher (age 25+) | 67.0% ±5.5 pts | 42.3% |
| Graduate or professional degree (age 25+) | 29.1% ±4.8 pts | 19.1% |
| Lived in the same house a year earlier | 94.3% ±3.5 pts | 89.2% |
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 Census Tract 4102 earn?
Half of the 1,726 households in Census Tract 4102 earn less than $186,071 a year (±$28,037), against $91,768 across Baltimore County: 10th highest of the county's 213 tracts with a reliable estimate.
| Measure | Tract 4102 | Baltimore County |
|---|---|---|
| Median household income | $186,071 ±$28,037 | $91,768 |
| Mean household income | $229,780 ±$25,739 | $122,863 |
| Per capita income | $79,526 ±$8,626 | $49,074 |
| People below the poverty line | 5.2% ±3.8 pts | 9.8% |
| Children under 18 below the poverty line | 3.6% ±4.3 pts | 12.2% |
| Households receiving SNAP | 2.0% ±1.8 pts | 11.3% |
| Households with a computer | 96.6% ±2.9 pts | 95.9% |
| Households with a broadband subscription | 98.2% ±1.2 pts | 91.4% |
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 4102?
Owners occupy 98.6% of Census Tract 4102's occupied homes and renters 1.4%. The median owner-occupied home is valued at $664,000 by its owner (±$30,759).
| Measure | Tract 4102 | Baltimore County |
|---|---|---|
| Median home value (owner-occupied) | $664,000 ±$30,759 | $349,300 |
| Median monthly owner costs, with a mortgage | $3,373 ±$200 | $2,049 |
| Owner-occupied homes | 98.6% ±1.4 pts | 66.4% |
| Renter-occupied homes | 1.4% ±1.4 pts | 33.6% |
| Housing units | 1,762 ±143 | 350,821 |
| Single-family detached homes | 99.2% ±1.3 pts | 47.2% |
| Mobile homes | 0.8% ±1.3 pts | 0.8% |
| Built 2020 or later | 0.0% ±2.4 pts | 0.7% |
| Built 2010 to 2019 | 8.2% ±4.1 pts | 5.2% |
| Built 1939 or earlier | 5.3% ±3.1 pts | 7.4% |
| Households with no vehicle | 2.4% ±2.3 pts | 7.8% |
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 4102 get to work?
72.6% of Census Tract 4102's workers drive alone and 21.1% work from home. The average trip to work takes 32.4 minutes.
| Measure | Tract 4102 | Baltimore County |
|---|---|---|
| In the labor force (age 16+) | 61.4% ±3.9 pts | 65.8% |
| Unemployment rate | 3.0% ±2.2 pts | 4.9% |
| Drove alone to work | 72.6% ±5.2 pts | 69.5% |
| Carpooled | 3.1% ±2.3 pts | 7.8% |
| Public transportation | 0.5% ±0.8 pts | 2.5% |
| Walked | 1.7% ±1.6 pts | 1.9% |
| Worked from home | 21.1% ±5.2 pts | 16.5% |
| Mean travel time to work | 32.4 min ±3.0 | 28.0 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 4102 compare with the other tracts in Baltimore County?
Among Baltimore County's tracts with a reliable estimate, Census Tract 4102 ranks as shown below (1 = highest).
| Measure | In Baltimore County |
|---|---|
| Population | 50th of 217 |
| Residents per square mile | 200th of 219 |
| Median household income | 10th of 213 |
| Per capita income | 19th of 217 |
| Median home value | 9th of 215 |
| Bachelor's degree or higher | 33rd of 214 |
| Median age | 43rd of 217 |
| Owner-occupied share | 4th of 213 |
The tracts next to it on Baltimore County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4038.01 | 7th | $188,889±$53,874 · within the margin of this tract |
| Tract 4005 | 8th | $188,500±$44,145 · within the margin of this tract |
| Tract 4082 | 9th | $188,000±$37,055 · within the margin of this tract |
| Tract 4102 | 10th | $186,071±$28,037 |
| Tract 4083.02 | 11th | $180,833±$27,772 · within the margin of this tract |
| Tract 4906.01 | 12th | $176,184±$37,723 · within the margin of this tract |
| Tract 4901 | 13th | $172,250±$39,094 · 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 4102?
3 of the 17 figures for Census Tract 4102 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