Census tract · Fond du Lac County
Census Tract 405, Fond du Lac County, Wisconsin
Census Tract 405, GEOID 55039040500, in Fond du Lac County, Wisconsin, entirely within Fond du Lac. 3,917 residents in the ACS 2020-2024 5-year estimates (±459); the 2020 Census counted 3,933.
Residents, 2020-2024
3,917
±459 (90% margin)
2020 Census count: 3,933
Median household income
$32,750
±$10,066 (90% margin)
Fond du Lac County: $74,275
Median home value
$137,600
±$15,162 (90% margin)
Fond du Lac County: $222,800
Median gross rent
$773
±$59 (90% margin)
Fond du Lac County: $960
Where is Census Tract 405?
Census Tract 405 is one of 23 census tracts in Fond du Lac County, Wisconsin. It covers 0.66 square miles of land, 5,995 residents per square mile in 2020. Its GEOID, 55039040500, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Fond du Lac | 100% |
7 census tracts border Census Tract 405: Tract 401 ($69,644), Tract 402 ($60,368), Tract 403 ($61,164), Tract 404 ($59,527), Tract 407 ($82,241), Tract 408 ($77,118) and Tract 409 ($59,123). 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 405?
The 2020-2024 American Community Survey puts Census Tract 405's population at 3,917 (±459) in 1,978 households; the 2020 Census counted 3,933 residents and 2,044 housing units.
| Measure | Tract 405 | Fond du Lac |
|---|---|---|
| Total population | 3,917 ±459 | 44,494 |
| Households | 1,978 ±215 | 19,018 |
| Average household size | 1.85 ±0.16 | 2.22 |
| Housing units | 2,212 ±197 | 20,433 |
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 405?
The median resident of Census Tract 405 is 32.9 years old; 24.3% are under 18 and 11.8% are 65 or older. The largest group is non-Hispanic white residents at 74.1%, then Hispanic or Latino residents (of any race) at 11.3%.
| Measure | Tract 405 | Fond du Lac |
|---|---|---|
| Median age | 32.9 ±3.9 | 36.9 |
| Under 18 years | 24.3% ±4.6 pts | 22.5% |
| 65 years and over | 11.8% ±3.5 pts | 16.4% |
| Hispanic or Latino (any race) | 11.3% ±6.6 pts | 9.4% |
| White alone, not Hispanic | 74.1% ±8.6 pts | 80.3% |
| Black or African American alone, not Hispanic | 7.2% ±3.8 pts | 3.0% |
| Asian alone, not Hispanic | 1.3% ±2.0 pts | 3.6% |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.3 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.0% |
| Two or more races, not Hispanic | 5.2% ±3.8 pts | 3.0% |
| Some other race alone, not Hispanic | 0.7% ±0.9 pts | 0.6% |
| Born outside the United States | 4.4% ±3.1 pts | 5.2% |
| Speak a language other than English at home (age 5+) | 6.2% ±3.9 pts | 8.6% |
| Civilian veterans (age 18+) | 5.9% ±2.2 pts | 6.8% |
| With a disability | 19.9% ±5.1 pts | 13.8% |
| No health insurance coverage | 5.7% ±3.6 pts | 4.6% |
| High school graduate or higher (age 25+) | 82.1% ±5.4 pts | 91.1% |
| Bachelor's degree or higher (age 25+) | 12.4% ±4.3 pts | 21.3% |
| Graduate or professional degree (age 25+) | 2.5% ±2.0 pts | 7.0% |
| Lived in the same house a year earlier | 82.9% ±7.7 pts | 86.4% |
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 405 earn?
Half of the 1,978 households in Census Tract 405 earn less than $32,750 a year (±$10,066), against $74,275 across Fond du Lac County: 23rd highest of the county's 23 tracts with a reliable estimate. 30.6% of residents live below the poverty line.
| Measure | Tract 405 | Fond du Lac |
|---|---|---|
| Median household income | $32,750 ±$10,066 | $62,260 |
| Mean household income | $50,323 ±$9,280 | $75,500 |
| Per capita income | $25,224 ±$3,963 | $32,942 |
| People below the poverty line | 30.6% ±9.2 pts | 12.4% |
| Children under 18 below the poverty line | 40.2% ±18.6 pts | 15.3% |
| Households receiving SNAP | 42.7% ±9.4 pts | 14.2% |
| Households with a computer | 96.0% ±2.5 pts | 93.9% |
| Households with a broadband subscription | 91.4% ±4.3 pts | 89.7% |
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 405?
Owners occupy 19.3% of Census Tract 405's occupied homes and renters 80.7%. The median owner-occupied home is valued at $137,600 by its owner (±$15,162). The median renter pays $773 a month including utilities, and 38.3% of renters pay 35% or more of their income on rent.
| Measure | Tract 405 | Fond du Lac |
|---|---|---|
| Median home value (owner-occupied) | $137,600 ±$15,162 | $173,700 |
| Median gross rent | $773 ±$59 | $913 |
| Renters paying 35% or more of income on rent | 38.3% ±10.8 pts | 34.5% |
| Median monthly owner costs, with a mortgage | $1,184 ±$128 | $1,351 |
| Owner-occupied homes | 19.3% ±4.9 pts | 58.2% |
| Renter-occupied homes | 80.7% ±4.9 pts | 41.8% |
| Housing units | 2,212 ±197 | 20,433 |
| Single-family detached homes | 24.9% ±5.9 pts | 58.6% |
| Mobile homes | 0.0% ±1.0 pts | 1.7% |
| Built 2020 or later | 0.0% ±1.0 pts | 0.5% |
| Built 2010 to 2019 | 10.9% ±4.1 pts | 7.7% |
| Built 1939 or earlier | 61.4% ±7.4 pts | 28.2% |
| Households with no vehicle | 28.2% ±7.6 pts | 9.5% |
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 405 get to work?
80.0% of Census Tract 405's workers drive alone and 8.7% work from home. The average trip to work takes 18.2 minutes.
| Measure | Tract 405 | Fond du Lac |
|---|---|---|
| In the labor force (age 16+) | 54.5% ±5.9 pts | 63.9% |
| Unemployment rate | 6.6% ±5.2 pts | 4.4% |
| Drove alone to work | 80.0% ±8.3 pts | 76.0% |
| Carpooled | 1.8% ±1.9 pts | 9.1% |
| Public transportation | 1.0% ±1.5 pts | 0.2% |
| Walked | 3.5% ±2.9 pts | 3.5% |
| Worked from home | 8.7% ±5.5 pts | 9.2% |
| Mean travel time to work | 18.2 min ±3.8 | 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 405 compare with the other tracts in Fond du Lac County?
Among Fond du Lac County's tracts with a reliable estimate, Census Tract 405 ranks as shown below (1 = highest).
| Measure | In Fond du Lac County | In Fond du Lac |
|---|---|---|
| Population | 16th of 23 | 8th of 13 |
| Residents per square mile | 2nd of 23 | 2nd of 13 |
| Median household income | 23rd of 23 | 13th of 13 |
| Per capita income | 23rd of 23 | 13th of 13 |
| Median home value | 22nd of 23 | 12th of 13 |
| Median gross rent | 22nd of 23 | 13th of 13 |
| Poverty rate | 1st of 23 | 1st of 13 |
| Bachelor's degree or higher | 22nd of 23 | 12th of 13 |
| Median age | 23rd of 23 | 13th of 13 |
| Owner-occupied share | 23rd of 23 | 13th of 13 |
The tracts next to it on Fond du Lac County's income ladder
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 405?
1 of the 18 figures for Census Tract 405 on this page carries a coefficient of variation over 40% and is 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