Township · Indiana
Union Township, DeKalb County, Indiana
Union Township, DeKalb County, township, in DeKalb County, Indiana. Union Township, DeKalb County had 14,231 residents on July 1, 2025 by the Census Bureau's estimate, up 3.9% since 2020; the 2020 Census counted 13,718 and the ACS 2020-2024 5-year estimates put it at 13,917 (±19). GEOID 1803377228.
Residents, July 2025 estimate
14,231
Census Bureau estimate (no margin published)
2020 Census count: 13,718 · ACS 2020-2024: 13,917 ±19
Median household income
$75,568
±$14,193 (90% margin)
Indiana: $71,957
Median home value
$192,800
±$11,908 (90% margin)
Indiana: $218,200
Median gross rent
$856
±$48 (90% margin)
Indiana: $1,062
Where is Union Township, DeKalb County and what county is it in?
Union Township, DeKalb County is a township in DeKalb County, Indiana. It covers 17.8 square miles of land, 771 residents per square mile in 2020.
One place lies inside Union Township (DeKalb County): Auburn (city, 13,412 in 2020).
Union Township, DeKalb County is in the Auburn, IN micropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Union Township, DeKalb County, and is it growing?
The Census Bureau estimates that 14,231 people lived in Union Township, DeKalb County on July 1, 2025, up 3.9% since 2020, faster than Indiana (+2.8%). The 2020 Census counted 13,718 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 13,917 (±19).
| Measure | Union Township, DeKalb County | DeKalb County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 13,917±19 | 43,807 | +324 |
| Households | 5,724±246 | 17,096 | no clear change |
| Average household size | 2.39±0.10 | 2.53 | no clear change |
| Housing units | 5,978±283 | 18,384 | no clear change |
Union Township, DeKalb County's population since 2000
From 12,716 in 2000 to 14,231 in 2025: up 11.9%. The 2000, 2010 and 2020 figures are census counts, each for Union Township, DeKalb County as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Union Township, DeKalb County?
The median resident of Union Township, DeKalb County is 36.1 years old; 24.6% are under 18 and 18.1% are 65 or older. The largest group is non-Hispanic white residents at 95.3%, then non-Hispanic residents of two or more races at 2.5%. 2.0% of residents were born outside the United States.
| Measure | Union Township, DeKalb County | DeKalb County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 36.1±1.0 | 38.4 | −2.5 |
| Under 18 years | 24.6%±2.2 pts | 24.1% | – |
| 65 years and over | 18.1%±1.7 pts | 17.4% | – |
| Male | 48.5%±2.3 pts | 49.9% | – |
| Hispanic or Latino (any race) | 2.0%±1.1 pts | 3.1% | no clear change |
| White alone, not Hispanic | 95.3%±1.5 pts | 93.6% | no clear change |
| Black or African American alone, not Hispanic | 0.0%±0.1 pts | 0.1% | – |
| Asian alone, not Hispanic | 0.1%±0.2 pts | 0.6% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.3 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.3 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.5%±1.0 pts | 2.5% | – |
| Some other race alone, not Hispanic | 0.0%±0.3 pts | 0.2% | – |
| Born outside the United States | 2.0%±1.0 pts | 1.5% | – |
| Speak a language other than English at home (age 5+) | 2.0%±1.4 pts | 2.5% | – |
| Civilian veterans (age 18+) | 6.9%±1.8 pts | 6.7% | – |
| With a disability | 13.4%±3.3 pts | 14.6% | – |
| No health insurance coverage | 7.9%±3.2 pts | 6.5% | +5.1 pts |
| High school graduate or higher (age 25+) | 96.1%±2.1 pts | 92.9% | – |
| Bachelor's degree or higher (age 25+) | 23.2%±3.8 pts | 20.2% | no clear change |
| Graduate or professional degree (age 25+) | 5.5%±2.1 pts | 6.0% | – |
| Lived in the same house a year earlier | 87.1%±5.8 pts | 87.4% | – |
| Moved from another state in the past year | 0.6%±0.5 pts | 0.6% | – |
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 Union Township, DeKalb County earn?
Half of Union Township, DeKalb County's 5,724 households earn less than $75,568 a year (±$14,193), against $74,331 in DeKalb County and $71,957 in Indiana. In 2015-2019 it was $62,084 in 2024 dollars; the margins of error cannot tell the two periods apart. 8.7% of residents live below the poverty line.
| Measure | Union Township, DeKalb County | DeKalb County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $75,568±$14,193 | $74,331 | no clear change |
| Mean household income | $89,336±$8,160 | $88,977 | – |
| Per capita income | $37,094±$2,943 | $35,553 | no clear change |
| People below the poverty line | 8.7%±2.8 pts | 9.5% | no clear change |
| Children under 18 below the poverty line | 10.3%±6.1 pts | 11.7% | no clear change |
| Households receiving SNAP | 6.8%±2.8 pts | 6.3% | – |
| Households with a computer | 94.4%±2.5 pts | 93.3% | – |
| Households with a broadband subscription | 90.5%±2.9 pts | 88.1% | – |
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 Union Township, DeKalb County?
Owners occupy 76.4% of Union Township, DeKalb County's occupied homes and renters 23.6%. The median owner-occupied home is valued at $192,800 by its owner (±$11,908). The median renter pays $856 a month including utilities, and 29.4% of renters pay 35% or more of their income on rent.
| Measure | Union Township, DeKalb County | DeKalb County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $192,800±$11,908 | $194,100 | +$44,994 |
| Median gross rent | $856±$48 | $861 | no clear change |
| Renters paying 35% or more of income on rent | 29.4%±10.0 pts | 29.3% | no clear change |
| Median monthly owner costs, with a mortgage | $1,048±$82 | $1,207 | – |
| Owner-occupied homes | 76.4%±4.9 pts | 82.1% | +9.9 pts |
| Renter-occupied homes | 23.6%±4.9 pts | 17.9% | – |
| Housing units | 5,978±283 | 18,384 | no clear change |
| Homeowner vacancy rate | 0.0%±0.9 pts | 0.5% | – |
| Rental vacancy rate | 12.2%±8.5 pts | 13.9% | – |
| Single-family detached homes | 71.6%±4.4 pts | 78.7% | – |
| Mobile homes | 8.3%±3.2 pts | 7.7% | – |
| Built 2020 or later | 3.2%±1.8 pts | 2.1% | – |
| Built 2010 to 2019 | 5.7%±2.3 pts | 5.6% | – |
| Built 1939 or earlier | 23.3%±4.4 pts | 27.8% | – |
| Households with no vehicle | 8.1%±3.4 pts | 5.8% | – |
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 Union Township, DeKalb County work and get to work?
81.6% of Union Township, DeKalb County's workers drive alone and 3.9% work from home. The average trip to work takes 18.4 minutes. The unemployment rate in 2020-2024 averaged 5.2%.
| Measure | Union Township, DeKalb County | DeKalb County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 68.2%±3.2 pts | 66.4% | – |
| Unemployment rate | 5.2%±2.7 pts | 4.5% | no clear change |
| Drove alone to work | 81.6%±3.9 pts | 81.4% | – |
| Carpooled | 12.2%±3.5 pts | 10.9% | – |
| Public transportation | 0.0%±0.1 pts | 0.2% | – |
| Walked | 1.9%±1.2 pts | 1.1% | – |
| Worked from home | 3.9%±1.8 pts | 5.0% | – |
| Mean travel time to work | 18.4 min±2.0 | 21.3 min | +2.4 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
What census tracts are in Union Township, DeKalb County?
2 census tracts lie mostly in Union Township, DeKalb County, and 2 more reach into it (2020 census blocks). Their median household incomes run from $65,110 (Tract 205) to $82,711 (Tract 204).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 204DeKalb County | 7,731 | $82,711 |
| Tract 205DeKalb County | 6,214 | $65,110 |
| Tract 202DeKalb County | 4,298 | $82,091 |
| Tract 206.02DeKalb County | 5,158 | $60,656 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Union Township, DeKalb County) · Census block assignment files
How does Union Township, DeKalb County compare with other places in Indiana?
By the Census Bureau's July 2025 estimates, Union Township, DeKalb County is the 896th-most populous of the 16,079 U.S. towns and townships that have one and the 96th-most populous of 1,001 in Indiana.
Union Township, DeKalb County ranks 452nd of 1,072 places in Indiana with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 96th | 1,001 |
| Growth 2020-2025 (PEP) | 168th | 1,056 |
| Residents per square mile | 352nd | 1,088 |
| Median household income | 452nd | 1,072 |
| Per capita income | 422nd | 1,087 |
| Median home value | 524th | 1,075 |
| Median gross rent | 565th | 904 |
| Poverty rate | 508th | 736 |
| Bachelor's degree or higher | 416th | 1,029 |
| Median age | 844th | 1,083 |
| Owner-occupied share | 673rd | 1,087 |
| Work from home | 564th | 595 |
| Travel time to work | 1,020th | 1,088 |
Union Township, DeKalb County's figures with every place in Indiana (CSV)
Every place in Indiana, sortable · Compare Union Township, DeKalb County with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Union Township, DeKalb County?
10 of the 57 figures for Union Township, DeKalb County 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.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. 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 · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Union Township, DeKalb County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.