Census tract · Dubuque County
Census Tract 103, Dubuque County, Iowa
Census Tract 103, GEOID 19061010300, in Dubuque County, Iowa, partly within Cascade, Zwingle and Bernard. 3,399 residents in the ACS 2020-2024 5-year estimates (±310); the 2020 Census counted 3,270.
Residents, 2020-2024
3,399
±310 (90% margin)
2020 Census count: 3,270
Median household income
$100,285
±$4,463 (90% margin)
Dubuque County: $77,630
Median home value
$326,300
±$26,673 (90% margin)
Dubuque County: $237,300
Median gross rent
$999
±$155 (90% margin)
Dubuque County: $959
Where is Census Tract 103?
Census Tract 103 is one of 27 census tracts in Dubuque County, Iowa. It covers 144.44 square miles of land, 23 residents per square mile in 2020. Its GEOID, 19061010300, names it uniquely (how tract numbers and GEOIDs work).
7 census tracts border Census Tract 103: Tract 101.05 ($119,598), Tract 102.01 ($117,016), Tract 102.02 ($95,063), Tract 104 ($93,438), Tract 9501 in Jackson County ($75,139), Tract 9502 in Jackson County ($86,818) and Tract 701 in Jones County ($97,232). 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 103?
The 2020-2024 American Community Survey puts Census Tract 103's population at 3,399 (±310) in 1,263 households; the 2020 Census counted 3,270 residents and 1,295 housing units.
| Measure | Tract 103 | Dubuque County |
|---|---|---|
| Total population | 3,399 ±310 | 99,030 |
| Households | 1,263 ±114 | 40,989 |
| Average household size | 2.68 ±0.19 | 2.31 |
| Housing units | 1,270 ±114 | 43,288 |
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 103?
The median resident of Census Tract 103 is 37.8 years old; 26.4% are under 18 and 17.1% are 65 or older. The largest group is non-Hispanic white residents at 91.0%, then Hispanic or Latino residents (of any race) at 5.9%.
| Measure | Tract 103 | Dubuque County |
|---|---|---|
| Median age | 37.8 ±1.8 | 39.1 |
| Under 18 years | 26.4% ±3.9 pts | 22.5% |
| 65 years and over | 17.1% ±3.8 pts | 19.3% |
| Hispanic or Latino (any race) | 5.9% ±4.5 pts | 3.3% |
| White alone, not Hispanic | 91.0% ±5.4 pts | 88.3% |
| Black or African American alone, not Hispanic | 0.0% ±0.7 pts | 2.9% |
| Asian alone, not Hispanic | 0.5% ±0.5 pts | 1.3% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.8% |
| Two or more races, not Hispanic | 2.5% ±2.8 pts | 3.3% |
| Some other race alone, not Hispanic | 0.1% ±0.2 pts | 0.1% |
| Born outside the United States | 3.2% ±3.6 pts | 3.3% |
| Speak a language other than English at home (age 5+) | 7.0% ±6.7 pts | 4.8% |
| Civilian veterans (age 18+) | 4.4% ±2.3 pts | 5.9% |
| With a disability | 6.1% ±2.0 pts | 11.0% |
| No health insurance coverage | 5.2% ±5.2 pts | 3.5% |
| High school graduate or higher (age 25+) | 90.3% ±6.0 pts | 93.9% |
| Bachelor's degree or higher (age 25+) | 17.5% ±4.2 pts | 33.4% |
| Graduate or professional degree (age 25+) | 5.3% ±1.9 pts | 11.6% |
| Lived in the same house a year earlier | 94.7% ±3.5 pts | 89.7% |
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 103 earn?
Half of the 1,263 households in Census Tract 103 earn less than $100,285 a year (±$4,463), against $77,630 across Dubuque County: 5th highest of the county's 26 tracts with a reliable estimate. 6.9% of residents live below the poverty line.
| Measure | Tract 103 | Dubuque County |
|---|---|---|
| Median household income | $100,285 ±$4,463 | $77,630 |
| Mean household income | $120,414 ±$18,932 | $100,177 |
| Per capita income | $42,498 ±$4,225 | $41,404 |
| People below the poverty line | 6.9% ±3.6 pts | 9.7% |
| Children under 18 below the poverty line | 13.5% ±8.9 pts | 10.6% |
| Households receiving SNAP | 1.9% ±1.5 pts | 8.0% |
| Households with a computer | 96.0% ±2.3 pts | 94.8% |
| Households with a broadband subscription | 93.8% ±2.6 pts | 90.0% |
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 103?
Owners occupy 87.8% of Census Tract 103's occupied homes and renters 12.2%. The median owner-occupied home is valued at $326,300 by its owner (±$26,673). The median renter pays $999 a month including utilities.
| Measure | Tract 103 | Dubuque County |
|---|---|---|
| Median home value (owner-occupied) | $326,300 ±$26,673 | $237,300 |
| Median gross rent | $999 ±$155 | $959 |
| Renters paying 35% or more of income on rent | 21.1% ±25.6 pts | 40.6% |
| Median monthly owner costs, with a mortgage | $1,862 ±$162 | $1,562 |
| Owner-occupied homes | 87.8% ±5.5 pts | 73.3% |
| Renter-occupied homes | 12.2% ±5.5 pts | 26.7% |
| Housing units | 1,270 ±114 | 43,288 |
| Single-family detached homes | 86.7% ±5.9 pts | 71.0% |
| Mobile homes | 2.3% ±1.7 pts | 3.2% |
| Built 2020 or later | 3.9% ±4.0 pts | 1.3% |
| Built 2010 to 2019 | 8.9% ±3.4 pts | 9.4% |
| Built 1939 or earlier | 19.2% ±8.9 pts | 23.8% |
| Households with no vehicle | 2.0% ±1.7 pts | 6.1% |
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 103 get to work?
78.8% of Census Tract 103's workers drive alone and 15.8% work from home. The average trip to work takes 22.8 minutes.
| Measure | Tract 103 | Dubuque County |
|---|---|---|
| In the labor force (age 16+) | 71.6% ±4.9 pts | 66.8% |
| Unemployment rate | 3.5% ±2.7 pts | 3.7% |
| Drove alone to work | 78.8% ±5.6 pts | 78.7% |
| Carpooled | 3.8% ±1.9 pts | 5.2% |
| Public transportation | 0.0% ±1.4 pts | 0.8% |
| Walked | 1.6% ±1.4 pts | 2.3% |
| Worked from home | 15.8% ±5.8 pts | 12.0% |
| Mean travel time to work | 22.8 min ±3.1 | 16.7 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 103 compare with the other tracts in Dubuque County?
Among Dubuque County's tracts with a reliable estimate, Census Tract 103 ranks as shown below (1 = highest).
| Measure | In Dubuque County |
|---|---|
| Population | 17th of 27 |
| Residents per square mile | 27th of 27 |
| Median household income | 5th of 26 |
| Per capita income | 13th of 26 |
| Median home value | 6th of 27 |
| Median gross rent | 15th of 27 |
| Poverty rate | 14th of 20 |
| Bachelor's degree or higher | 25th of 27 |
| Median age | 19th of 27 |
| Owner-occupied share | 9th of 27 |
The tracts next to it on Dubuque County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 101.05 | 2nd | $119,598±$20,298 · within the margin of this tract |
| Tract 102.01 | 3rd | $117,016±$14,298 |
| Tract 11.03 | 4th | $102,237±$18,268 · within the margin of this tract |
| Tract 103 | 5th | $100,285±$4,463 |
| Tract 8.01 | 6th | $100,000±$11,913 · within the margin of this tract |
| Tract 8.02 | 7th | $98,826±$21,058 · within the margin of this tract |
| Tract 106 | 8th | $96,174±$7,962 · 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 103?
3 of the 18 figures for Census Tract 103 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