Census tract · Linn County
Census Tract 105, Linn County, Iowa
Census Tract 105, GEOID 19113010500, in Linn County, Iowa, partly within Marion, Bertram and Cedar Rapids. 3,889 residents in the ACS 2020-2024 5-year estimates (±455); the 2020 Census counted 3,810.
Residents, 2020-2024
3,889
±455 (90% margin)
2020 Census count: 3,810
Median household income
$85,313
±$22,794 (90% margin)
Linn County: $77,649
Median home value
$337,000
±$23,862 (90% margin)
Linn County: $214,300
Median gross rent
$970
±$385 (90% margin)
Linn County: $945
Where is Census Tract 105?
Census Tract 105 is one of 54 census tracts in Linn County, Iowa. It covers 63.14 square miles of land, 60 residents per square mile in 2020. Its GEOID, 19113010500, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Marion | 20% |
| Bertram | 11% |
| Cedar Rapids | 2% |
10 census tracts border Census Tract 105: Tract 1.01 ($110,616), Tract 1.02 ($93,487), Tract 1.03, Tract 2.08 ($120,342), Tract 103 ($87,065), Tract 104 ($95,091), Tract 106 ($127,917), Tract 107 ($120,462), Tract 108.01 ($102,813) and Tract 108.02 ($103,143). 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 105?
The 2020-2024 American Community Survey puts Census Tract 105's population at 3,889 (±455) in 1,648 households; the 2020 Census counted 3,810 residents and 1,697 housing units.
| Measure | Tract 105 | Linn County |
|---|---|---|
| Total population | 3,889 ±455 | 230,004 |
| Households | 1,648 ±222 | 95,600 |
| Average household size | 2.36 ±0.16 | 2.35 |
| Housing units | 1,859 ±239 | 103,104 |
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 105?
The median resident of Census Tract 105 is 43.8 years old; 21.4% are under 18 and 25.0% are 65 or older. The largest group is non-Hispanic white residents at 88.8%, then Hispanic or Latino residents (of any race) at 5.6%.
| Measure | Tract 105 | Linn County |
|---|---|---|
| Median age | 43.8 ±2.6 | 39.0 |
| Under 18 years | 21.4% ±3.6 pts | 22.5% |
| 65 years and over | 25.0% ±4.2 pts | 17.3% |
| Hispanic or Latino (any race) | 5.6% ±3.8 pts | 4.1% |
| White alone, not Hispanic | 88.8% ±5.4 pts | 82.4% |
| Black or African American alone, not Hispanic | 3.2% ±3.6 pts | 5.9% |
| Asian alone, not Hispanic | 0.0% ±0.6 pts | 2.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.4% ±0.7 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.0% |
| Two or more races, not Hispanic | 2.1% ±1.7 pts | 4.7% |
| Some other race alone, not Hispanic | 0.0% ±0.6 pts | 0.4% |
| Born outside the United States | 2.4% ±3.0 pts | 5.6% |
| Speak a language other than English at home (age 5+) | 1.7% ±1.5 pts | 7.1% |
| Civilian veterans (age 18+) | 5.8% ±2.0 pts | 7.4% |
| With a disability | 13.6% ±3.5 pts | 11.9% |
| No health insurance coverage | 4.7% ±3.0 pts | 4.1% |
| High school graduate or higher (age 25+) | 96.5% ±2.3 pts | 95.2% |
| Bachelor's degree or higher (age 25+) | 37.4% ±7.4 pts | 34.7% |
| Graduate or professional degree (age 25+) | 15.7% ±4.6 pts | 11.4% |
| Lived in the same house a year earlier | 89.2% ±4.4 pts | 87.8% |
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 105 earn?
Half of the 1,648 households in Census Tract 105 earn less than $85,313 a year (±$22,794), against $77,649 across Linn County: 20th highest of the county's 53 tracts with a reliable estimate.
| Measure | Tract 105 | Linn County |
|---|---|---|
| Median household income | $85,313 ±$22,794 | $77,649 |
| Mean household income | $116,113 ±$17,647 | $104,478 |
| Per capita income | $49,354 ±$8,150 | $43,820 |
| People below the poverty line | 7.8% ±5.2 pts | 9.4% |
| Children under 18 below the poverty line | 18.7% ±15.5 pts | 11.1% |
| Households receiving SNAP | 9.4% ±5.7 pts | 8.1% |
| Households with a computer | 90.7% ±6.4 pts | 96.3% |
| Households with a broadband subscription | 85.4% ±6.7 pts | 91.6% |
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 105?
Owners occupy 73.3% of Census Tract 105's occupied homes and renters 26.7%. The median owner-occupied home is valued at $337,000 by its owner (±$23,862). The median renter pays $970 a month including utilities.
| Measure | Tract 105 | Linn County |
|---|---|---|
| Median home value (owner-occupied) | $337,000 ±$23,862 | $214,300 |
| Median gross rent | $970 ±$385 | $945 |
| Renters paying 35% or more of income on rent | 24.3% ±19.2 pts | 35.2% |
| Median monthly owner costs, with a mortgage | $2,188 ±$108 | $1,584 |
| Owner-occupied homes | 73.3% ±7.6 pts | 73.5% |
| Renter-occupied homes | 26.7% ±7.6 pts | 26.5% |
| Housing units | 1,859 ±239 | 103,104 |
| Single-family detached homes | 63.6% ±7.2 pts | 66.7% |
| Mobile homes | 20.9% ±6.9 pts | 3.4% |
| Built 2020 or later | 5.4% ±4.6 pts | 1.8% |
| Built 2010 to 2019 | 25.2% ±8.1 pts | 11.1% |
| Built 1939 or earlier | 6.2% ±2.9 pts | 13.7% |
| Households with no vehicle | 6.3% ±4.2 pts | 4.9% |
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 105 get to work?
78.7% of Census Tract 105's workers drive alone and 14.5% work from home. The average trip to work takes 23.1 minutes.
| Measure | Tract 105 | Linn County |
|---|---|---|
| In the labor force (age 16+) | 57.8% ±5.0 pts | 67.7% |
| Unemployment rate | 0.8% ±1.3 pts | 3.5% |
| Drove alone to work | 78.7% ±6.2 pts | 75.6% |
| Carpooled | 6.6% ±4.0 pts | 6.3% |
| Public transportation | 0.0% ±1.4 pts | 0.6% |
| Walked | 0.0% ±1.4 pts | 1.8% |
| Worked from home | 14.5% ±6.2 pts | 14.7% |
| Mean travel time to work | 23.1 min ±2.9 | 19.3 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 105 compare with the other tracts in Linn County?
Among Linn County's tracts with a reliable estimate, Census Tract 105 ranks as shown below (1 = highest).
| Measure | In Linn County |
|---|---|
| Population | 31st of 54 |
| Residents per square mile | 50th of 54 |
| Median household income | 20th of 53 |
| Per capita income | 15th of 54 |
| Median home value | 4th of 52 |
| Median gross rent | 23rd of 48 |
| Bachelor's degree or higher | 19th of 54 |
| Median age | 13th of 54 |
| Owner-occupied share | 32nd of 53 |
The tracts next to it on Linn County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 101 | 17th | $91,591±$14,185 · within the margin of this tract |
| Tract 30.06 | 18th | $87,813±$16,034 · within the margin of this tract |
| Tract 103 | 19th | $87,065±$12,776 · within the margin of this tract |
| Tract 105 | 20th | $85,313±$22,794 |
| Tract 4 | 21st | $83,734±$13,764 · within the margin of this tract |
| Tract 17 | 22nd | $79,427±$44,329 · within the margin of this tract |
| Tract 3 | 23rd | $78,211±$13,747 · 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 105?
4 of the 18 figures for Census Tract 105 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