Census tract · Iowa County
Census Tract 9604, Iowa County, Iowa
Census Tract 9604, GEOID 19095960400, in Iowa County, Iowa, partly within Williamsburg and Parnell. 4,980 residents in the ACS 2020-2024 5-year estimates (±360); the 2020 Census counted 5,505.
Residents, 2020-2024
4,980
±360 (90% margin)
2020 Census count: 5,505
Median household income
$65,097
±$9,306 (90% margin)
Iowa County: $71,223
Median home value
$220,200
±$33,616 (90% margin)
Iowa County: $193,900
Median gross rent
$666
±$42 (90% margin)
Iowa County: $686
Where is Census Tract 9604?
Census Tract 9604 is one of 4 census tracts in Iowa County, Iowa. It covers 147.21 square miles of land, 37 residents per square mile in 2020. Its GEOID, 19095960400, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Williamsburg | 34% |
| Parnell | 5% |
5 census tracts border Census Tract 9604: Tract 9601 ($98,529), Tract 9603 ($70,000), Tract 104.02 in Johnson County ($70,455), Tract 801 in Keokuk County ($75,272) and Tract 9602 in Washington County ($72,755). 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 9604?
The 2020-2024 American Community Survey puts Census Tract 9604's population at 4,980 (±360) in 2,164 households; the 2020 Census counted 5,505 residents and 2,344 housing units.
| Measure | Tract 9604 | Iowa County |
|---|---|---|
| Total population | 4,980 ±360 | 16,507 |
| Households | 2,164 ±176 | 6,909 |
| Average household size | 2.25 ±0.13 | 2.34 |
| Housing units | 2,170 ±177 | 7,369 |
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 9604?
The median resident of Census Tract 9604 is 39.2 years old; 23.1% are under 18 and 15.7% are 65 or older. The largest group is non-Hispanic white residents at 89.8%, then Hispanic or Latino residents (of any race) at 7.3%.
| Measure | Tract 9604 | Iowa County |
|---|---|---|
| Median age | 39.2 ±2.4 | 42.4 |
| Under 18 years | 23.1% ±2.2 pts | 23.3% |
| 65 years and over | 15.7% ±2.5 pts | 20.3% |
| Hispanic or Latino (any race) | 7.3% ±1.9 pts | 3.4% |
| White alone, not Hispanic | 89.8% ±3.4 pts | 92.5% |
| Black or African American alone, not Hispanic | 0.1% ±0.5 pts | 0.3% |
| Asian alone, not Hispanic | 0.0% ±0.5 pts | 0.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.5 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.5 pts | 0.0% |
| Two or more races, not Hispanic | 0.7% ±0.2 pts | 2.7% |
| Some other race alone, not Hispanic | 2.1% ±2.9 pts | 0.8% |
| Born outside the United States | 0.9% ±1.0 pts | 1.0% |
| Speak a language other than English at home (age 5+) | 6.3% ±3.3 pts | 2.7% |
| Civilian veterans (age 18+) | 5.6% ±2.7 pts | 8.6% |
| With a disability | 12.2% ±3.3 pts | 13.7% |
| No health insurance coverage | 2.0% ±1.6 pts | 3.2% |
| High school graduate or higher (age 25+) | 96.2% ±2.5 pts | 95.5% |
| Bachelor's degree or higher (age 25+) | 38.0% ±7.6 pts | 24.8% |
| Graduate or professional degree (age 25+) | 8.7% ±4.1 pts | 6.9% |
| Lived in the same house a year earlier | 89.8% ±3.7 pts | 91.6% |
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 9604 earn?
Half of the 2,164 households in Census Tract 9604 earn less than $65,097 a year (±$9,306), against $71,223 across Iowa County: 3rd highest of the county's 4 tracts with a reliable estimate. 7.6% of residents live below the poverty line.
| Measure | Tract 9604 | Iowa County |
|---|---|---|
| Median household income | $65,097 ±$9,306 | $71,223 |
| Mean household income | $98,524 ±$24,083 | $90,784 |
| Per capita income | $42,253 ±$9,091 | $38,618 |
| People below the poverty line | 7.6% ±3.6 pts | 8.9% |
| Children under 18 below the poverty line | 9.3% ±8.1 pts | 12.7% |
| Households receiving SNAP | 3.6% ±2.4 pts | 6.5% |
| Households with a computer | 99.3% ±1.0 pts | 94.4% |
| Households with a broadband subscription | 91.5% ±5.0 pts | 88.5% |
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 9604?
Owners occupy 69.4% of Census Tract 9604's occupied homes and renters 30.6%. The median owner-occupied home is valued at $220,200 by its owner (±$33,616). The median renter pays $666 a month including utilities, and 27.6% of renters pay 35% or more of their income on rent.
| Measure | Tract 9604 | Iowa County |
|---|---|---|
| Median home value (owner-occupied) | $220,200 ±$33,616 | $193,900 |
| Median gross rent | $666 ±$42 | $686 |
| Renters paying 35% or more of income on rent | 27.6% ±15.5 pts | 23.4% |
| Median monthly owner costs, with a mortgage | $1,602 ±$202 | $1,507 |
| Owner-occupied homes | 69.4% ±7.2 pts | 76.6% |
| Renter-occupied homes | 30.6% ±7.2 pts | 23.4% |
| Housing units | 2,170 ±177 | 7,369 |
| Single-family detached homes | 72.9% ±6.4 pts | 79.3% |
| Mobile homes | 1.5% ±1.3 pts | 3.1% |
| Built 2020 or later | 0.7% ±1.1 pts | 0.2% |
| Built 2010 to 2019 | 9.6% ±4.8 pts | 6.9% |
| Built 1939 or earlier | 21.3% ±6.0 pts | 34.2% |
| Households with no vehicle | 0.0% ±0.1 pts | 3.5% |
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 9604 get to work?
89.2% of Census Tract 9604's workers drive alone and 4.0% work from home. The average trip to work takes 20.8 minutes.
| Measure | Tract 9604 | Iowa County |
|---|---|---|
| In the labor force (age 16+) | 73.6% ±4.1 pts | 66.7% |
| Unemployment rate | 1.6% ±1.7 pts | 1.9% |
| Drove alone to work | 89.2% ±3.5 pts | 83.0% |
| Carpooled | 6.1% ±2.9 pts | 5.8% |
| Public transportation | 0.0% ±0.9 pts | 0.1% |
| Walked | 0.6% ±0.6 pts | 2.6% |
| Worked from home | 4.0% ±2.5 pts | 8.1% |
| Mean travel time to work | 20.8 min ±2.6 | 22.2 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 9604 compare with the other tracts in Iowa County?
Among Iowa County's tracts with a reliable estimate, Census Tract 9604 ranks as shown below (1 = highest).
| Measure | In Iowa County |
|---|---|
| Population | 1st of 4 |
| Residents per square mile | 1st of 4 |
| Median household income | 3rd of 4 |
| Per capita income | 2nd of 4 |
| Median home value | 2nd of 4 |
| Median gross rent | 3rd of 4 |
| Poverty rate | 3rd of 4 |
| Bachelor's degree or higher | 1st of 4 |
| Median age | 4th of 4 |
| Owner-occupied share | 4th of 4 |
The tracts next to it on Iowa County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 9601 | 1st | $98,529±$11,097 |
| Tract 9603 | 2nd | $70,000±$8,424 · within the margin of this tract |
| Tract 9604 | 3rd | $65,097±$9,306 |
| Tract 9602 | 4th | $61,280±$5,977 · 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 9604?
2 of the 18 figures for Census Tract 9604 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