Census tract · Hamilton County
Census Tract 31, Hamilton County, Tennessee
Census Tract 31, GEOID 47065003100, in Hamilton County, Tennessee, entirely within Chattanooga. 1,948 residents in the ACS 2020-2024 5-year estimates (±254); the 2020 Census counted 2,073.
Residents, 2020-2024
1,948
±254 (90% margin)
2020 Census count: 2,073
Median household income
$72,955
±$16,908 (90% margin)
Hamilton County: $76,183
Median home value
$684,700
±$74,331 (90% margin)
Hamilton County: $312,800
Median gross rent
$1,600
±$194 (90% margin)
Hamilton County: $1,253
Where is Census Tract 31?
Census Tract 31 is one of 87 census tracts in Hamilton County, Tennessee. It covers 0.71 square miles of land, 2,903 residents per square mile in 2020. Its GEOID, 47065003100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Chattanooga | 100% |
5 census tracts border Census Tract 31: Tract 6 ($157,500), Tract 8 ($47,308), Tract 16 ($20,000), Tract 20 ($68,269) and Tract 124 ($71,389). 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 31?
The 2020-2024 American Community Survey puts Census Tract 31's population at 1,948 (±254) in 1,272 households; the 2020 Census counted 2,073 residents and 1,497 housing units.
| Measure | Tract 31 | Chattanooga |
|---|---|---|
| Total population | 1,948 ±254 | 185,783 |
| Households | 1,272 ±162 | 79,084 |
| Average household size | 1.43 ±0.12 | 2.26 |
| Housing units | 1,619 ±138 | 87,970 |
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 31?
The median resident of Census Tract 31 is 38.5 years old. The largest group is non-Hispanic white residents at 78.9%, then non-Hispanic Black residents at 13.8%.
| Measure | Tract 31 | Chattanooga |
|---|---|---|
| Median age | 38.5 ±5.7 | 36.3 |
| Under 18 years | 1.5% ±1.2 pts | 21.0% |
| 65 years and over | 4.9% ±2.7 pts | 17.3% |
| Hispanic or Latino (any race) | 2.6% ±2.1 pts | 10.0% |
| White alone, not Hispanic | 78.9% ±8.2 pts | 55.5% |
| Black or African American alone, not Hispanic | 13.8% ±6.3 pts | 27.6% |
| Asian alone, not Hispanic | 2.5% ±2.7 pts | 2.3% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±2.3 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±2.3 pts | 0.0% |
| Two or more races, not Hispanic | 1.8% ±1.7 pts | 4.3% |
| Some other race alone, not Hispanic | 0.4% ±0.7 pts | 0.3% |
| Born outside the United States | 3.7% ±2.8 pts | 8.3% |
| Speak a language other than English at home (age 5+) | 3.3% ±2.5 pts | 12.0% |
| Civilian veterans (age 18+) | 3.0% ±1.6 pts | 5.9% |
| With a disability | 11.5% ±6.0 pts | 14.1% |
| No health insurance coverage | 13.9% ±8.8 pts | 12.2% |
| High school graduate or higher (age 25+) | 93.0% ±3.7 pts | 90.0% |
| Bachelor's degree or higher (age 25+) | 59.6% ±8.1 pts | 36.0% |
| Graduate or professional degree (age 25+) | 23.7% ±8.3 pts | 13.5% |
| Lived in the same house a year earlier | 64.8% ±10.7 pts | 81.1% |
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 31 earn?
Half of the 1,272 households in Census Tract 31 earn less than $72,955 a year (±$16,908), against $76,183 across Hamilton County: 42nd highest of the county's 83 tracts with a reliable estimate. 14.4% of residents live below the poverty line.
| Measure | Tract 31 | Chattanooga |
|---|---|---|
| Median household income | $72,955 ±$16,908 | $64,523 |
| Mean household income | $145,929 ±$27,777 | $95,469 |
| Per capita income | $88,949 ±$12,953 | $41,600 |
| People below the poverty line | 14.4% ±7.6 pts | 19.1% |
| Children under 18 below the poverty line | 0.0% ±76.1 pts | 31.3% |
| Households receiving SNAP | 7.2% ±6.5 pts | 12.9% |
| Households with a computer | 98.7% ±1.5 pts | 95.0% |
| Households with a broadband subscription | 93.1% ±6.8 pts | 90.4% |
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 31?
Owners occupy 18.5% of Census Tract 31's occupied homes and renters 81.5%. The median owner-occupied home is valued at $684,700 by its owner (±$74,331). The median renter pays $1,600 a month including utilities, and 34.3% of renters pay 35% or more of their income on rent.
| Measure | Tract 31 | Chattanooga |
|---|---|---|
| Median home value (owner-occupied) | $684,700 ±$74,331 | $283,200 |
| Median gross rent | $1,600 ±$194 | $1,256 |
| Renters paying 35% or more of income on rent | 34.3% ±11.2 pts | 38.6% |
| Median monthly owner costs, with a mortgage | $2,321 ±$152 | $1,564 |
| Owner-occupied homes | 18.5% ±6.8 pts | 52.4% |
| Renter-occupied homes | 81.5% ±6.8 pts | 47.6% |
| Housing units | 1,619 ±138 | 87,970 |
| Single-family detached homes | 1.1% ±1.1 pts | 57.6% |
| Mobile homes | 0.6% ±0.9 pts | 1.5% |
| Built 2020 or later | 11.0% ±8.3 pts | 2.3% |
| Built 2010 to 2019 | 24.8% ±8.9 pts | 11.7% |
| Built 1939 or earlier | 35.8% ±7.3 pts | 12.6% |
| Households with no vehicle | 10.4% ±6.6 pts | 8.6% |
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 31 get to work?
68.7% of Census Tract 31's workers drive alone and 16.0% work from home. The average trip to work takes 13.0 minutes.
| Measure | Tract 31 | Chattanooga |
|---|---|---|
| In the labor force (age 16+) | 74.0% ±7.1 pts | 64.6% |
| Unemployment rate | 0.4% ±0.7 pts | 5.4% |
| Drove alone to work | 68.7% ±10.6 pts | 73.6% |
| Carpooled | 0.1% ±0.4 pts | 8.8% |
| Public transportation | 0.0% ±3.2 pts | 0.9% |
| Walked | 15.2% ±10.5 pts | 1.9% |
| Worked from home | 16.0% ±6.5 pts | 13.6% |
| Mean travel time to work | 13.0 min ±2.1 | 18.5 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 31 compare with the other tracts in Hamilton County?
Among Hamilton County's tracts with a reliable estimate, Census Tract 31 ranks as shown below (1 = highest).
| Measure | In Hamilton County | In Chattanooga |
|---|---|---|
| Population | 80th of 85 | 48th of 52 |
| Residents per square mile | 14th of 87 | 11th of 54 |
| Median household income | 42nd of 83 | 19th of 51 |
| Per capita income | 4th of 85 | 3rd of 52 |
| Median home value | 2nd of 85 | 1st of 52 |
| Median gross rent | 10th of 79 | 8th of 52 |
| Poverty rate | 31st of 66 | 29th of 46 |
| Bachelor's degree or higher | 8th of 83 | 4th of 50 |
| Median age | 47th of 85 | 20th of 52 |
| Owner-occupied share | 84th of 84 | 51st of 51 |
The tracts next to it on Hamilton County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 103.08 | 39th | $73,311±$13,265 · within the margin of this tract |
| Tract 103.03 | 40th | $73,162±$8,312 · within the margin of this tract |
| Tract 14 | 41st | $72,989±$24,655 · within the margin of this tract |
| Tract 31 | 42nd | $72,955±$16,908 |
| Tract 112.04 | 43rd | $71,455±$12,369 · within the margin of this tract |
| Tract 124 | 44th | $71,389±$39,160 · within the margin of this tract |
| Tract 114.02 | 45th | $70,787±$11,955 · 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 31?
2 of the 18 figures for Census Tract 31 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