Census tract · Woodbury County
Census Tract 33.01, Woodbury County, Iowa
Census Tract 33.01, GEOID 19193003301, in Woodbury County, Iowa, mostly within Sergeant Bluff (98% of its census blocks). 5,171 residents in the ACS 2020-2024 5-year estimates (±32); the 2020 Census counted 5,046.
Residents, 2020-2024
5,171
±32 (90% margin)
2020 Census count: 5,046
Median household income
$123,481
±$15,366 (90% margin)
Woodbury County: $73,658
Median home value
$298,500
±$25,536 (90% margin)
Woodbury County: $183,200
Median gross rent
$1,156
±$211 (90% margin)
Woodbury County: $981
Where is Census Tract 33.01?
Census Tract 33.01 is one of 29 census tracts in Woodbury County, Iowa. It covers 2.57 square miles of land, 1,966 residents per square mile in 2020. Its GEOID, 19193003301, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Sergeant Bluff | 98% |
4 census tracts border Census Tract 33.01: Tract 21.02 ($77,360), Tract 33.02 ($110,125), Tract 35 ($85,758) and Tract 36 ($38,193). 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 33.01?
The 2020-2024 American Community Survey puts Census Tract 33.01's population at 5,171 (±32) in 1,808 households; the 2020 Census counted 5,046 residents and 1,832 housing units.
| Measure | Tract 33.01 | Sergeant Bluff |
|---|---|---|
| Total population | 5,171 ±32 | 5,171 |
| Households | 1,808 ±156 | 1,808 |
| Average household size | 2.82 ±0.24 | 2.82 |
| Housing units | 1,957 ±176 | 1,957 |
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 33.01?
The median resident of Census Tract 33.01 is 36.9 years old; 27.7% are under 18 and 12.5% are 65 or older. The largest group is non-Hispanic white residents at 87.1%, then non-Hispanic Asian residents at 7.2%. 7.9% of residents were born outside the United States.
| Measure | Tract 33.01 | Sergeant Bluff |
|---|---|---|
| Median age | 36.9 ±5.9 | 36.9 |
| Under 18 years | 27.7% ±4.2 pts | 27.7% |
| 65 years and over | 12.5% ±2.6 pts | 12.5% |
| Hispanic or Latino (any race) | 3.2% ±2.7 pts | 3.2% |
| White alone, not Hispanic | 87.1% ±5.6 pts | 87.1% |
| Black or African American alone, not Hispanic | 0.9% ±1.0 pts | 0.9% |
| Asian alone, not Hispanic | 7.2% ±4.6 pts | 7.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.5 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.5 pts | 0.0% |
| Two or more races, not Hispanic | 1.5% ±1.5 pts | 1.5% |
| Some other race alone, not Hispanic | 0.0% ±0.5 pts | 0.0% |
| Born outside the United States | 7.9% ±4.8 pts | 7.9% |
| Speak a language other than English at home (age 5+) | 8.4% ±5.1 pts | 8.4% |
| Civilian veterans (age 18+) | 5.6% ±2.4 pts | 5.6% |
| With a disability | 9.9% ±3.0 pts | 9.9% |
| No health insurance coverage | 1.2% ±1.1 pts | 1.2% |
| High school graduate or higher (age 25+) | 96.3% ±2.8 pts | 96.3% |
| Bachelor's degree or higher (age 25+) | 36.7% ±7.5 pts | 36.7% |
| Graduate or professional degree (age 25+) | 14.1% ±4.5 pts | 14.1% |
| Lived in the same house a year earlier | 96.5% ±2.3 pts | 96.5% |
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 33.01 earn?
Half of the 1,808 households in Census Tract 33.01 earn less than $123,481 a year (±$15,366), against $73,658 across Woodbury County: 1st highest of the county's 28 tracts with a reliable estimate. 9.5% of residents live below the poverty line.
| Measure | Tract 33.01 | Sergeant Bluff |
|---|---|---|
| Median household income | $123,481 ±$15,366 | $123,481 |
| Mean household income | $134,265 ±$13,688 | $134,265 |
| Per capita income | $47,805 ±$4,462 | $47,805 |
| People below the poverty line | 9.5% ±4.8 pts | 9.5% |
| Children under 18 below the poverty line | 10.6% ±7.8 pts | 10.6% |
| Households receiving SNAP | 8.6% ±5.0 pts | 8.6% |
| Households with a computer | 96.8% ±2.5 pts | 96.8% |
| Households with a broadband subscription | 94.8% ±3.4 pts | 94.8% |
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 33.01?
Owners occupy 73.2% of Census Tract 33.01's occupied homes and renters 26.8%. The median owner-occupied home is valued at $298,500 by its owner (±$25,536). The median renter pays $1,156 a month including utilities, and 30.4% of renters pay 35% or more of their income on rent.
| Measure | Tract 33.01 | Sergeant Bluff |
|---|---|---|
| Median home value (owner-occupied) | $298,500 ±$25,536 | $298,500 |
| Median gross rent | $1,156 ±$211 | $1,156 |
| Renters paying 35% or more of income on rent | 30.4% ±17.3 pts | 30.4% |
| Median monthly owner costs, with a mortgage | $2,049 ±$199 | $2,049 |
| Owner-occupied homes | 73.2% ±5.7 pts | 73.2% |
| Renter-occupied homes | 26.8% ±5.7 pts | 26.8% |
| Housing units | 1,957 ±176 | 1,957 |
| Single-family detached homes | 60.0% ±8.3 pts | 60.0% |
| Mobile homes | 6.8% ±4.5 pts | 6.8% |
| Built 2020 or later | 2.1% ±1.5 pts | 2.1% |
| Built 2010 to 2019 | 24.0% ±7.8 pts | 24.0% |
| Built 1939 or earlier | 8.0% ±4.4 pts | 8.0% |
| Households with no vehicle | 0.0% ±1.4 pts | 0.0% |
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 33.01 get to work?
80.7% of Census Tract 33.01's workers drive alone. The average trip to work takes 13.4 minutes.
| Measure | Tract 33.01 | Sergeant Bluff |
|---|---|---|
| In the labor force (age 16+) | 75.2% ±4.4 pts | 75.2% |
| Unemployment rate | 1.7% ±1.7 pts | 1.7% |
| Drove alone to work | 80.7% ±8.3 pts | 80.7% |
| Carpooled | 12.3% ±8.3 pts | 12.3% |
| Public transportation | 0.3% ±0.5 pts | 0.3% |
| Walked | 1.3% ±1.1 pts | 1.3% |
| Worked from home | 5.3% ±4.3 pts | 5.3% |
| Mean travel time to work | 13.4 min ±1.5 | 13.4 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 33.01 compare with the other tracts in Woodbury County?
Among Woodbury County's tracts with a reliable estimate, Census Tract 33.01 ranks as shown below (1 = highest).
| Measure | In Woodbury County |
|---|---|
| Population | 5th of 28 |
| Residents per square mile | 14th of 29 |
| Median household income | 1st of 28 |
| Per capita income | 5th of 28 |
| Median home value | 2nd of 28 |
| Median gross rent | 5th of 27 |
| Poverty rate | 22nd of 25 |
| Bachelor's degree or higher | 4th of 24 |
| Median age | 13th of 28 |
| Owner-occupied share | 13th of 28 |
The tracts next to it on Woodbury County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 33.01 | 1st | $123,481±$15,366 |
| Tract 21.01 | 2nd | $121,136±$16,593 · within the margin of this tract |
| Tract 33.02 | 3rd | $110,125±$20,433 · within the margin of this tract |
| Tract 4 | 4th | $102,385±$12,398 |
"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 33.01?
3 of the 18 figures for Census Tract 33.01 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