Census tract · Miami-Dade County
Census Tract 46.08, Miami-Dade County, Florida
Census Tract 46.08, GEOID 12086004608, in Miami-Dade County, Florida, entirely within Key Biscayne. 2,142 residents in the ACS 2020-2024 5-year estimates (±398); the 2020 Census counted 1,973.
Residents, 2020-2024
2,142
±398 (90% margin)
2020 Census count: 1,973
Median household income
$105,000
±$41,867 (90% margin)
Miami-Dade County: $71,753
Median home value
$781,300
±$336,366 (90% margin)
Miami-Dade County: $463,000
Median gross rent
$3,067
±$819 (90% margin)
Miami-Dade County: $1,829
Where is Census Tract 46.08?
Census Tract 46.08 is one of 707 census tracts in Miami-Dade County, Florida. It covers 0.08 square miles of land, 23,488 residents per square mile in 2020. Its GEOID, 12086004608, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Key Biscayne | 100% |
2 census tracts border Census Tract 46.08: Tract 46.02 ($250,000 or more) and Tract 46.07 ($176,333). 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 46.08?
The 2020-2024 American Community Survey puts Census Tract 46.08's population at 2,142 (±398) in 800 households; the 2020 Census counted 1,973 residents and 1,023 housing units.
| Measure | Tract 46.08 | Key Biscayne |
|---|---|---|
| Total population | 2,142±398 | 14,791 |
| Households | 800±160 | 4,945 |
| Average household size | 2.68±0.26 | 2.99 |
| Housing units | 1,074±155 | 7,310 |
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 46.08?
The median resident of Census Tract 46.08 is 42.6 years old; 33.6% are under 18 and 12.0% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 79.6%, then non-Hispanic residents of two or more races at 10.4%. 55.0% of residents were born outside the United States.
| Measure | Tract 46.08 | Key Biscayne |
|---|---|---|
| Median age | 42.6±4.1 | 42.2 |
| Under 18 years | 33.6%±5.9 pts | 31.8% |
| 65 years and over | 12.0%±3.1 pts | 15.7% |
| Hispanic or Latino (any race) | 79.6%±7.4 pts | 70.3% |
| White alone, not Hispanic | 9.8%±3.7 pts | 23.5% |
| Black or African American alone, not Hispanic | 0.0%±2.4 pts | 0.3% |
| Asian alone, not Hispanic | 0.2%±0.4 pts | 0.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±2.4 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±2.4 pts | 0.0% |
| Two or more races, not Hispanic | 10.4%±6.7 pts | 5.7% |
| Some other race alone, not Hispanic | 0.0%±2.4 pts | 0.1% |
| Born outside the United States | 55.0%±8.2 pts | 58.1% |
| Speak a language other than English at home (age 5+) | 84.5%±7.4 pts | 80.4% |
| Civilian veterans (age 18+) | 0.5%±0.7 pts | 1.5% |
| With a disability | 4.9%±2.8 pts | 5.1% |
| No health insurance coverage | 1.9%±1.9 pts | 1.8% |
| High school graduate or higher (age 25+) | 99.2%±0.8 pts | 96.1% |
| Bachelor's degree or higher (age 25+) | 80.0%±6.2 pts | 77.2% |
| Graduate or professional degree (age 25+) | 37.9%±6.4 pts | 42.2% |
| Lived in the same house a year earlier | 92.4%±5.6 pts | 82.8% |
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 46.08 earn?
Half of the 800 households in Census Tract 46.08 earn less than $105,000 a year (±$41,867), against $71,753 across Miami-Dade County: 143rd highest of the county's 662 tracts with a reliable estimate.
| Measure | Tract 46.08 | Key Biscayne |
|---|---|---|
| Median household income | $105,000±$41,867 | $181,505 |
| Mean household income | $198,336±$39,918 | $309,291 |
| Per capita income | $75,470±$12,861 | $106,219 |
| People below the poverty line | 4.7%±3.4 pts | 5.5% |
| Children under 18 below the poverty line | 3.1%±4.6 pts | 4.0% |
| Households receiving SNAP | 3.6%±3.0 pts | 1.1% |
| Households with a computer | 98.0%±2.1 pts | 98.4% |
| Households with a broadband subscription | 93.6%±4.6 pts | 92.6% |
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 46.08?
Owners occupy 52.3% of Census Tract 46.08's occupied homes and renters 47.8%. The median owner-occupied home is valued at $781,300 by its owner (±$336,366). The median renter pays $3,067 a month including utilities, and 49.5% of renters pay 35% or more of their income on rent.
| Measure | Tract 46.08 | Key Biscayne |
|---|---|---|
| Median home value (owner-occupied) | $781,300±$336,366 | $1,575,300 |
| Median gross rent | $3,067±$819 | $3,500 or more |
| Renters paying 35% or more of income on rent | 49.5%±22.7 pts | 51.3% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 or more |
| Owner-occupied homes | 52.3%±10.5 pts | 66.6% |
| Renter-occupied homes | 47.8%±10.5 pts | 33.4% |
| Housing units | 1,074±155 | 7,310 |
| Single-family detached homes | 2.1%±2.1 pts | 18.6% |
| Mobile homes | 0.0%±4.8 pts | 0.6% |
| Built 2020 or later | 0.0%±4.8 pts | 0.4% |
| Built 2010 to 2019 | 1.4%±1.6 pts | 4.5% |
| Built 1939 or earlier | 0.0%±4.8 pts | 0.4% |
| Households with no vehicle | 7.9%±4.6 pts | 2.8% |
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 46.08 get to work?
58.7% of Census Tract 46.08's workers drive alone and 28.0% work from home. The average trip to work takes 20.6 minutes.
| Measure | Tract 46.08 | Key Biscayne |
|---|---|---|
| In the labor force (age 16+) | 68.3%±4.9 pts | 60.7% |
| Unemployment rate | 0.7%±1.2 pts | 2.8% |
| Drove alone to work | 58.7%±7.3 pts | 51.2% |
| Carpooled | 3.0%±2.6 pts | 5.4% |
| Public transportation | 0.7%±1.0 pts | 1.9% |
| Walked | 3.1%±2.9 pts | 2.0% |
| Worked from home | 28.0%±6.8 pts | 34.6% |
| Mean travel time to work | 20.6 min±1.7 | 23.7 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 46.08 compare with the other tracts in Miami-Dade County?
Among Miami-Dade County's tracts with a reliable estimate, Census Tract 46.08 ranks as shown below (1 = highest).
| Measure | In Miami-Dade County | In Key Biscayne |
|---|---|---|
| Population | 624th of 697 | 4th of 4 |
| Residents per square mile | 74th of 706 | 2nd of 4 |
| Median household income | 143rd of 662 | 3rd of 3 |
| Per capita income | 71st of 695 | 4th of 4 |
| Median home value | 70th of 650 | 4th of 4 |
| Median gross rent | 43rd of 641 | 4th of 4 |
| Bachelor's degree or higher | 21st of 680 | 1st of 4 |
| Median age | 318th of 696 | 3rd of 4 |
| Owner-occupied share | 382nd of 661 | 4th of 4 |
The tracts next to it on Miami-Dade County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 128.01 | 140th | $105,137±$27,921 · within the margin of this tract |
| Tract 199.01 | 141st | $105,134±$60,433 · within the margin of this tract |
| Tract 27.02 | 142nd | $105,035±$27,783 · within the margin of this tract |
| Tract 46.08 | 143rd | $105,000±$41,867 |
| Tract 194.02 | 144th | $104,831±$8,014 · within the margin of this tract |
| Tract 167 | 145th | $104,375±$13,730 · within the margin of this tract |
| Tract 90.60 | 146th | $104,096±$22,048 · 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 46.08?
3 of the 18 figures for Census Tract 46.08 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