Census tract · Knox County
Census Tract 9551, Knox County, Indiana
Census Tract 9551, GEOID 18083955100, in Knox County, Indiana, mostly within Vigo Township (68% of its census blocks). 3,068 residents in the ACS 2020-2024 5-year estimates (±464); the 2020 Census counted 2,814.
Residents, 2020-2024
3,068
±464 (90% margin)
2020 Census count: 2,814
Median household income
$68,884
±$14,053 (90% margin)
Knox County: $61,237
Median home value
$100,800
±$31,293 (90% margin)
Knox County: $137,700
Median gross rent
$689
±$209 (90% margin)
Knox County: $796
Where is Census Tract 9551?
Census Tract 9551 is one of 11 census tracts in Knox County, Indiana. It covers 115.34 square miles of land, 24 residents per square mile in 2020. Its GEOID, 18083955100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Vigo Township | 68% |
| Widner Township | 22% |
| Washington Township, Knox County | 10% |
| Sandborn | 10% |
| Freelandville | 7% |
| Edwardsport | 7% |
| Westphalia | 5% |
| Bicknell | 2% |
| Ragsdale | 1% |
9 census tracts border Census Tract 9551: Tract 9543 in Daviess County ($69,813), Tract 9544 in Daviess County ($74,934), Tract 9553 in Greene County ($63,077), Tract 9550 ($53,294), Tract 9552.01 ($46,690), Tract 9552.02 ($96,979), Tract 9558 ($78,750), Tract 505.01 in Sullivan County ($50,601) and Tract 505.02 in Sullivan County ($59,609). 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 9551?
The 2020-2024 American Community Survey puts Census Tract 9551's population at 3,068 (±464) in 1,213 households; the 2020 Census counted 2,814 residents and 1,347 housing units.
| Measure | Tract 9551 | Vigo Township |
|---|---|---|
| Total population | 3,068 ±464 | 4,051 |
| Households | 1,213 ±185 | 1,830 |
| Average household size | 2.50 ±0.28 | 2.21 |
| Housing units | 1,294 ±186 | 1,964 |
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 9551?
The median resident of Census Tract 9551 is 41.0 years old; 23.1% are under 18 and 21.7% are 65 or older. The largest group is non-Hispanic white residents at 90.7%, then non-Hispanic residents of two or more races at 5.5%.
| Measure | Tract 9551 | Vigo Township |
|---|---|---|
| Median age | 41.0 ±6.4 | 42.5 |
| Under 18 years | 23.1% ±4.7 pts | 19.4% |
| 65 years and over | 21.7% ±5.3 pts | 20.6% |
| Hispanic or Latino (any race) | 3.8% ±4.1 pts | 2.0% |
| White alone, not Hispanic | 90.7% ±8.0 pts | 88.4% |
| Black or African American alone, not Hispanic | 0.0% ±1.2 pts | 0.0% |
| Asian alone, not Hispanic | 0.0% ±1.2 pts | 1.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.2 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.2 pts | 0.0% |
| Two or more races, not Hispanic | 5.5% ±7.0 pts | 8.6% |
| Some other race alone, not Hispanic | 0.0% ±1.2 pts | 0.0% |
| Born outside the United States | 0.0% ±1.2 pts | 1.0% |
| Speak a language other than English at home (age 5+) | 1.1% ±1.1 pts | 1.8% |
| Civilian veterans (age 18+) | 4.4% ±2.3 pts | 7.2% |
| With a disability | 18.0% ±5.7 pts | 22.9% |
| No health insurance coverage | 4.4% ±2.0 pts | 6.1% |
| High school graduate or higher (age 25+) | 93.5% ±2.4 pts | 89.2% |
| Bachelor's degree or higher (age 25+) | 19.6% ±7.0 pts | 10.8% |
| Graduate or professional degree (age 25+) | 4.5% ±2.1 pts | 2.3% |
| Lived in the same house a year earlier | 94.0% ±2.7 pts | 85.7% |
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 9551 earn?
Half of the 1,213 households in Census Tract 9551 earn less than $68,884 a year (±$14,053), against $61,237 across Knox County: 4th highest of the county's 11 tracts with a reliable estimate. 10.8% of residents live below the poverty line.
| Measure | Tract 9551 | Vigo Township |
|---|---|---|
| Median household income | $68,884 ±$14,053 | $59,120 |
| Mean household income | $71,552 ±$10,710 | $66,445 |
| Per capita income | $28,105 ±$4,058 | $30,844 |
| People below the poverty line | 10.8% ±4.6 pts | 9.7% |
| Children under 18 below the poverty line | 7.3% ±6.2 pts | 6.2% |
| Households receiving SNAP | 12.2% ±6.4 pts | 7.5% |
| Households with a computer | 84.2% ±8.0 pts | 94.3% |
| Households with a broadband subscription | 79.8% ±7.6 pts | 87.9% |
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 9551?
Owners occupy 79.4% of Census Tract 9551's occupied homes and renters 20.6%. The median owner-occupied home is valued at $100,800 by its owner (±$31,293). The median renter pays $689 a month including utilities, and 45.9% of renters pay 35% or more of their income on rent.
| Measure | Tract 9551 | Vigo Township |
|---|---|---|
| Median home value (owner-occupied) | $100,800 ±$31,293 | $73,800 |
| Median gross rent | $689 ±$209 | $845 |
| Renters paying 35% or more of income on rent | 45.9% ±23.2 pts | 29.3% |
| Median monthly owner costs, with a mortgage | $1,107 ±$98 | $831 |
| Owner-occupied homes | 79.4% ±8.2 pts | 72.8% |
| Renter-occupied homes | 20.6% ±8.2 pts | 27.2% |
| Housing units | 1,294 ±186 | 1,964 |
| Single-family detached homes | 84.4% ±7.0 pts | 86.5% |
| Mobile homes | 4.2% ±3.6 pts | 3.5% |
| Built 2020 or later | 0.5% ±0.6 pts | 0.3% |
| Built 2010 to 2019 | 7.7% ±5.7 pts | 3.8% |
| Built 1939 or earlier | 34.2% ±7.8 pts | 57.6% |
| Households with no vehicle | 4.2% ±3.0 pts | 8.3% |
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 9551 get to work?
93.0% of Census Tract 9551's workers drive alone. The average trip to work takes 23.9 minutes.
| Measure | Tract 9551 | Vigo Township |
|---|---|---|
| In the labor force (age 16+) | 64.3% ±6.5 pts | 59.6% |
| Unemployment rate | 3.9% ±3.3 pts | 1.2% |
| Drove alone to work | 93.0% ±3.6 pts | 84.8% |
| Carpooled | 3.5% ±2.5 pts | 10.6% |
| Public transportation | 0.0% ±2.5 pts | 0.0% |
| Walked | 1.4% ±2.1 pts | 0.2% |
| Worked from home | 1.4% ±1.3 pts | 3.6% |
| Mean travel time to work | 23.9 min ±3.1 | 27.3 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 9551 compare with the other tracts in Knox County?
Among Knox County's tracts with a reliable estimate, Census Tract 9551 ranks as shown below (1 = highest).
| Measure | In Knox County |
|---|---|
| Population | 6th of 11 |
| Residents per square mile | 10th of 11 |
| Median household income | 4th of 11 |
| Per capita income | 8th of 11 |
| Median home value | 7th of 10 |
| Median gross rent | 9th of 11 |
| Poverty rate | 7th of 8 |
| Bachelor's degree or higher | 4th of 11 |
| Median age | 5th of 11 |
| Owner-occupied share | 3rd of 11 |
The tracts next to it on Knox County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 9552.02 | 1st | $96,979±$21,341 |
| Tract 9558 | 2nd | $78,750±$13,135 · within the margin of this tract |
| Tract 9559 | 3rd | $68,947±$27,471 · within the margin of this tract |
| Tract 9551 | 4th | $68,884±$14,053 |
| Tract 9557 | 5th | $64,074±$17,896 · within the margin of this tract |
| Tract 9555 | 6th | $62,842±$11,710 · within the margin of this tract |
| Tract 9550 | 7th | $53,294±$15,797 · 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 9551?
4 of the 18 figures for Census Tract 9551 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