Census tract · Allen County
Census Tract 108.12, Allen County, Indiana
Census Tract 108.12, GEOID 18003010812, in Allen County, Indiana, mostly within St. Joseph Township (69% of its census blocks). 4,462 residents in the ACS 2020-2024 5-year estimates (±669); the 2020 Census counted 4,397.
Residents, 2020-2024
4,462
±669 (90% margin)
2020 Census count: 4,397
Median household income
$87,324
±$15,394 (90% margin)
Allen County: $70,737
Median home value
$228,100
±$25,492 (90% margin)
Allen County: $214,900
Median gross rent
$878
±$43 (90% margin)
Allen County: $1,021
Where is Census Tract 108.12?
Census Tract 108.12 is one of 96 census tracts in Allen County, Indiana. It covers 3.66 square miles of land, 1,202 residents per square mile in 2020. Its GEOID, 18003010812, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| St. Joseph Township | 69% |
| Fort Wayne | 52% |
| Adams Township, Allen County | 31% |
| New Haven | 24% |
6 census tracts border Census Tract 108.12: Tract 108.09 ($72,381), Tract 108.11 ($72,871), Tract 109 ($101,250), Tract 110 ($80,568), Tract 111 ($75,636) and Tract 112.01 ($58,281). 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 108.12?
The 2020-2024 American Community Survey puts Census Tract 108.12's population at 4,462 (±669) in 1,737 households; the 2020 Census counted 4,397 residents and 1,915 housing units.
| Measure | Tract 108.12 | St. Joseph Township |
|---|---|---|
| Total population | 4,462 ±669 | 77,745 |
| Households | 1,737 ±226 | 31,442 |
| Average household size | 2.57 ±0.16 | 2.40 |
| Housing units | 1,902 ±214 | 32,721 |
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 108.12?
The median resident of Census Tract 108.12 is 42.9 years old; 21.0% are under 18 and 17.4% are 65 or older. The largest group is non-Hispanic white residents at 90.7%, then non-Hispanic Black residents at 4.4%.
| Measure | Tract 108.12 | St. Joseph Township |
|---|---|---|
| Median age | 42.9 ±3.6 | 35.5 |
| Under 18 years | 21.0% ±3.4 pts | 24.4% |
| 65 years and over | 17.4% ±3.3 pts | 17.8% |
| Hispanic or Latino (any race) | 0.5% ±0.7 pts | 6.5% |
| White alone, not Hispanic | 90.7% ±4.1 pts | 74.3% |
| Black or African American alone, not Hispanic | 4.4% ±3.7 pts | 7.6% |
| Asian alone, not Hispanic | 0.5% ±0.6 pts | 5.7% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.1 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 3.4% ±1.6 pts | 5.2% |
| Some other race alone, not Hispanic | 0.5% ±0.8 pts | 0.6% |
| Born outside the United States | 0.4% ±0.4 pts | 6.3% |
| Speak a language other than English at home (age 5+) | 0.8% ±0.8 pts | 9.4% |
| Civilian veterans (age 18+) | 14.2% ±6.8 pts | 7.0% |
| With a disability | 13.5% ±5.4 pts | 12.2% |
| No health insurance coverage | 2.9% ±2.1 pts | 6.1% |
| High school graduate or higher (age 25+) | 97.6% ±1.7 pts | 94.5% |
| Bachelor's degree or higher (age 25+) | 34.7% ±6.6 pts | 34.1% |
| Graduate or professional degree (age 25+) | 8.3% ±3.3 pts | 11.1% |
| Lived in the same house a year earlier | 90.8% ±8.6 pts | 85.6% |
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 108.12 earn?
Half of the 1,737 households in Census Tract 108.12 earn less than $87,324 a year (±$15,394), against $70,737 across Allen County: 21st highest of the county's 94 tracts with a reliable estimate.
| Measure | Tract 108.12 | St. Joseph Township |
|---|---|---|
| Median household income | $87,324 ±$15,394 | $72,566 |
| Mean household income | $105,886 ±$11,803 | $92,943 |
| Per capita income | $41,920 ±$4,958 | $37,850 |
| People below the poverty line | 2.2% ±1.8 pts | 10.4% |
| Children under 18 below the poverty line | 5.0% ±5.9 pts | 12.0% |
| Households receiving SNAP | 6.0% ±6.4 pts | 6.0% |
| Households with a computer | 96.9% ±2.8 pts | 95.2% |
| Households with a broadband subscription | 95.7% ±3.1 pts | 90.9% |
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 108.12?
Owners occupy 87.6% of Census Tract 108.12's occupied homes and renters 12.4%. The median owner-occupied home is valued at $228,100 by its owner (±$25,492). The median renter pays $878 a month including utilities.
| Measure | Tract 108.12 | St. Joseph Township |
|---|---|---|
| Median home value (owner-occupied) | $228,100 ±$25,492 | $208,100 |
| Median gross rent | $878 ±$43 | $1,110 |
| Renters paying 35% or more of income on rent | 22.7% ±15.6 pts | 41.2% |
| Median monthly owner costs, with a mortgage | $1,162 ±$103 | $1,279 |
| Owner-occupied homes | 87.6% ±5.6 pts | 71.5% |
| Renter-occupied homes | 12.4% ±5.6 pts | 28.5% |
| Housing units | 1,902 ±214 | 32,721 |
| Single-family detached homes | 85.5% ±6.2 pts | 69.5% |
| Mobile homes | 0.0% ±1.9 pts | 1.7% |
| Built 2020 or later | 3.9% ±3.2 pts | 1.7% |
| Built 2010 to 2019 | 7.1% ±3.9 pts | 6.2% |
| Built 1939 or earlier | 2.8% ±2.4 pts | 1.5% |
| Households with no vehicle | 2.1% ±1.8 pts | 5.1% |
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 108.12 get to work?
75.5% of Census Tract 108.12's workers drive alone and 11.9% work from home. The average trip to work takes 23.0 minutes.
| Measure | Tract 108.12 | St. Joseph Township |
|---|---|---|
| In the labor force (age 16+) | 64.0% ±6.0 pts | 64.8% |
| Unemployment rate | 2.5% ±1.8 pts | 4.0% |
| Drove alone to work | 75.5% ±7.9 pts | 79.3% |
| Carpooled | 6.4% ±4.5 pts | 9.3% |
| Public transportation | 0.0% ±1.7 pts | 0.1% |
| Walked | 0.0% ±1.7 pts | 0.7% |
| Worked from home | 11.9% ±7.1 pts | 9.4% |
| Mean travel time to work | 23.0 min ±2.5 | 22.4 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 108.12 compare with the other tracts in Allen County?
Among Allen County's tracts with a reliable estimate, Census Tract 108.12 ranks as shown below (1 = highest).
| Measure | In Allen County |
|---|---|
| Population | 38th of 95 |
| Residents per square mile | 67th of 96 |
| Median household income | 21st of 94 |
| Per capita income | 25th of 94 |
| Median home value | 29th of 93 |
| Median gross rent | 78th of 89 |
| Bachelor's degree or higher | 32nd of 89 |
| Median age | 13th of 95 |
| Owner-occupied share | 22nd of 94 |
The tracts next to it on Allen County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 116.06 | 18th | $91,756±$12,692 · within the margin of this tract |
| Tract 116.05 | 19th | $88,945±$12,917 · within the margin of this tract |
| Tract 103.04 | 20th | $88,274±$9,762 · within the margin of this tract |
| Tract 108.12 | 21st | $87,324±$15,394 |
| Tract 3 | 22nd | $87,303±$16,732 · within the margin of this tract |
| Tract 105 | 23rd | $86,818±$18,988 · within the margin of this tract |
| Tract 118.02 | 24th | $84,167±$16,942 · 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 108.12?
4 of the 18 figures for Census Tract 108.12 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