Census tract · Gwinnett County
Census Tract 505.78, Gwinnett County, Georgia
Census Tract 505.78, GEOID 13135050578, in Gwinnett County, Georgia, outside any city, town or census-designated place. 4,060 residents in the ACS 2020-2024 5-year estimates (±583); the 2020 Census counted 4,114.
Residents, 2020-2024
4,060
±583 (90% margin)
2020 Census count: 4,114
Median household income
$110,889
±$27,983 (90% margin)
Gwinnett County: $87,890
Median home value
$384,100
±$41,470 (90% margin)
Gwinnett County: $380,900
Median gross rent
$2,345
±$181 (90% margin)
Gwinnett County: $1,810
Where is Census Tract 505.78?
Census Tract 505.78 is one of 220 census tracts in Gwinnett County, Georgia. It covers 1.88 square miles of land, 2,186 residents per square mile in 2020. Its GEOID, 13135050578, names it uniquely (how tract numbers and GEOIDs work).
5 census tracts border Census Tract 505.78: Tract 505.63 ($80,859), Tract 505.72 ($122,974), Tract 505.79 ($107,083), Tract 505.82 ($99,022) and Tract 505.83 ($98,913). 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 505.78?
The 2020-2024 American Community Survey puts Census Tract 505.78's population at 4,060 (±583) in 1,315 households; the 2020 Census counted 4,114 residents and 1,308 housing units.
| Measure | Tract 505.78 | Gwinnett County |
|---|---|---|
| Total population | 4,060±583 | 979,864 |
| Households | 1,315±136 | 327,043 |
| Average household size | 3.09±0.35 | 2.98 |
| Housing units | 1,388±141 | 340,962 |
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 505.78?
The median resident of Census Tract 505.78 is 34.5 years old; 24.2% are under 18 and 13.4% are 65 or older. The largest group is non-Hispanic white residents at 31.9%, then non-Hispanic Black residents at 28.4%. 29.8% of residents were born outside the United States.
| Measure | Tract 505.78 | Gwinnett County |
|---|---|---|
| Median age | 34.5±2.9 | 36.0 |
| Under 18 years | 24.2%±5.2 pts | 26.0% |
| 65 years and over | 13.4%±4.1 pts | 11.3% |
| Hispanic or Latino (any race) | 13.4%±4.2 pts | 23.7% |
| White alone, not Hispanic | 31.9%±8.2 pts | 30.6% |
| Black or African American alone, not Hispanic | 28.4%±12.6 pts | 27.8% |
| Asian alone, not Hispanic | 14.7%±4.8 pts | 13.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.2 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.2 pts | 0.0% |
| Two or more races, not Hispanic | 9.8%±6.1 pts | 4.0% |
| Some other race alone, not Hispanic | 1.7%±2.1 pts | 0.6% |
| Born outside the United States | 29.8%±6.6 pts | 28.4% |
| Speak a language other than English at home (age 5+) | 41.4%±9.9 pts | 38.1% |
| Civilian veterans (age 18+) | 7.7%±5.9 pts | 5.0% |
| With a disability | 7.7%±3.3 pts | 8.9% |
| No health insurance coverage | 10.3%±4.7 pts | 15.2% |
| High school graduate or higher (age 25+) | 94.4%±3.5 pts | 87.9% |
| Bachelor's degree or higher (age 25+) | 48.7%±6.8 pts | 39.0% |
| Graduate or professional degree (age 25+) | 11.1%±5.1 pts | 13.9% |
| Lived in the same house a year earlier | 82.4%±10.3 pts | 88.4% |
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 505.78 earn?
Half of the 1,315 households in Census Tract 505.78 earn less than $110,889 a year (±$27,983), against $87,890 across Gwinnett County: 57th highest of the county's 219 tracts with a reliable estimate. 3.2% of residents live below the poverty line.
| Measure | Tract 505.78 | Gwinnett County |
|---|---|---|
| Median household income | $110,889±$27,983 | $87,890 |
| Mean household income | $141,869±$22,045 | $113,877 |
| Per capita income | $47,533±$7,339 | $38,906 |
| People below the poverty line | 3.2%±1.8 pts | 10.8% |
| Children under 18 below the poverty line | 0.0%±4.7 pts | 14.7% |
| Households receiving SNAP | 6.1%±3.5 pts | 7.8% |
| Households with a computer | 97.8%±2.5 pts | 98.4% |
| Households with a broadband subscription | 95.6%±6.7 pts | 94.6% |
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 505.78?
Owners occupy 81.9% of Census Tract 505.78's occupied homes and renters 18.1%. The median owner-occupied home is valued at $384,100 by its owner (±$41,470). The median renter pays $2,345 a month including utilities, and 63.5% of renters pay 35% or more of their income on rent.
| Measure | Tract 505.78 | Gwinnett County |
|---|---|---|
| Median home value (owner-occupied) | $384,100±$41,470 | $380,900 |
| Median gross rent | $2,345±$181 | $1,810 |
| Renters paying 35% or more of income on rent | 63.5%±29.6 pts | 51.3% |
| Median monthly owner costs, with a mortgage | $2,338±$213 | $2,050 |
| Owner-occupied homes | 81.9%±10.0 pts | 66.3% |
| Renter-occupied homes | 18.1%±10.0 pts | 33.7% |
| Housing units | 1,388±141 | 340,962 |
| Single-family detached homes | 96.2%±2.6 pts | 70.6% |
| Mobile homes | 0.8%±1.2 pts | 1.3% |
| Built 2020 or later | 0.0%±3.4 pts | 3.1% |
| Built 2010 to 2019 | 22.9%±9.5 pts | 12.8% |
| Built 1939 or earlier | 0.0%±3.4 pts | 0.4% |
| Households with no vehicle | 0.0%±3.5 pts | 3.8% |
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 505.78 get to work?
54.6% of Census Tract 505.78's workers drive alone and 34.4% work from home. The average trip to work takes 34.0 minutes.
| Measure | Tract 505.78 | Gwinnett County |
|---|---|---|
| In the labor force (age 16+) | 70.8%±6.4 pts | 68.6% |
| Unemployment rate | 0.7%±1.1 pts | 4.2% |
| Drove alone to work | 54.6%±13.4 pts | 66.7% |
| Carpooled | 7.8%±3.9 pts | 11.8% |
| Public transportation | 1.2%±1.9 pts | 0.5% |
| Walked | 1.3%±2.1 pts | 0.7% |
| Worked from home | 34.4%±14.3 pts | 18.4% |
| Mean travel time to work | 34.0 min±5.4 | 32.8 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 505.78 compare with the other tracts in Gwinnett County?
Among Gwinnett County's tracts with a reliable estimate, Census Tract 505.78 ranks as shown below (1 = highest).
| Measure | In Gwinnett County |
|---|---|
| Population | 120th of 220 |
| Residents per square mile | 142nd of 220 |
| Median household income | 57th of 219 |
| Per capita income | 52nd of 220 |
| Median home value | 88th of 216 |
| Median gross rent | 44th of 206 |
| Poverty rate | 91st of 92 |
| Bachelor's degree or higher | 48th of 218 |
| Median age | 143rd of 220 |
| Owner-occupied share | 86th of 214 |
The tracts next to it on Gwinnett County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 507.61 | 54th | $112,443±$27,349 · within the margin of this tract |
| Tract 501.19 | 55th | $112,334±$16,069 · within the margin of this tract |
| Tract 505.60 | 56th | $111,603±$19,879 · within the margin of this tract |
| Tract 505.78 | 57th | $110,889±$27,983 |
| Tract 504.25 | 58th | $110,795±$18,912 · within the margin of this tract |
| Tract 504.66 | 59th | $110,511±$29,355 · within the margin of this tract |
| Tract 501.21 | 60th | $110,382±$10,245 · 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 505.78?
Every figure for Census Tract 505.78 on this page has a coefficient of variation under 40%, the Census Bureau's threshold for a usable estimate.
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