About one in 14 people with a credit file in Sioux County, Iowa, has unpaid debt sent to a collector

In Sioux County, 7.0% of people with a credit file had unpaid debt sent to a collector. That is lower than in 99% of U.S. counties.

County Distress Index Data through Sep 2026
97th
of 99 counties in Iowa
3,139th of 3,144 U.S. counties
0score /100

Less distressed than 99% of U.S. counties.

What drives Sioux County's score

In Sioux County, housing costs are the highest-scoring part, at 25.3. Collections and bankruptcy is the lowest part, at 0.7.

The County Distress Index looks at five parts of household money trouble in Sioux County: jobs, late payments on loans, income and the safety net, collections and bankruptcy, and housing costs. Each part is scored from 0 to 100, and a higher score means worse off than other counties.

Sioux County isn't among the worst-off quarter of U.S. counties on any measure.

A longer bar means more trouble. See how the county score works.

  • Housing costs

    Biggest factor
    25.3 of 100

    Renters, 2020–24 Census survey; HUD's fair market rents, fiscal year 2027

    • Renters paying half their income or more in rent
      17.9% · 2020 to 2024
      48th percentile
    • Rent on a two-bedroom as a share of the median income
      14.7% · fiscal year 2027
      2nd percentile
  • Income and safety net

    11.6 of 100

    Poverty and income, 2024; disability and insurance, 2020–24 Census survey

    • People below the poverty line
      7.3% · 2024
      5th percentile
    • Children below the poverty line
      7.1% · 2024
      3rd percentile
    • People with a disability
      9.0% · 2020 to 2024
      2nd percentile
    • People without health insurance
      5.8% · 2020 to 2024
      29th percentile
    • Median household income (lower income, longer bar)
      $81,746 · 2024
      17th percentile
  • Jobs

    4.2 of 100

    Unemployment through Sep 2026; adults not working, 2020–24 Census survey

    • Unemployment rate, average over the latest year
      2.3% · Oct 2025 to Sep 2026
      2nd percentile
    • Adults 25 to 54 not working
      11.9% · 2020 to 2024
      5th percentile
  • Late payments

    3.1 of 100

    Credit records, August 2025; credit scores, second quarter of 2026

    • People with a credit card behind
      1.7% · August 2025
      2nd percentile
    • People with a car or retail loan behind
      2.1% · August 2025
      5th percentile
    • People with a subprime credit score
      22.1% · second quarter of 2026
      1st percentile
  • Collections and bankruptcy

    0.7 of 100

    Credit records, August 2025; bankruptcy filings, 2025

    • People with unpaid debt sent to a collector
      7.0% · August 2025
      0th percentile
    • Bankruptcy filings per 100,000 people
      19.3 · 2025
      0th percentile

Sources: Urban Institute, Debt in America; Equifax via the St. Louis Fed; Administrative Office of the U.S. Courts, Table F-5A; U.S. Census Bureau, American Community Survey; U.S. Department of Housing and Urban Development Fair Market Rents and Census income; U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics; Census Bureau, Small Area Income and Poverty Estimates. County Distress Index by American Default Research, from data through Sep 2026.

Where the money in Sioux County comes from

Benefit checks are Social Security, Medicare and Medicaid paid on people's behalf, veterans' benefits, and food and income support, so a high share usually means an older population, low pay, or both. In Sioux County, 16.2% of residents are 65 or older (Census Bureau, 2024), against 17.2% nationally that year.

Cents of every dollar of income, 2024

Sioux County

65 20 14

Iowa

61 19 20

United States

61 21 18
  • Pay from work
  • Investments and rent
  • Benefit checks
Source: U.S. Bureau of Economic Analysis, Regional Economic Accounts (CAINC4), shares of all personal income received by residents, 2024. Pay from work is total income minus the other two, so the three add to 100.

Benefit checks' share of income in Sioux County had its largest rise, from 12.5% in 2004 to 16.9% in 2009.

In Sioux County, benefit checks' share of income has doubled since 1969, reaching 14.2% in 2024, but pay from work still brings in about five times as much as benefit checks

In Sioux County, Iowa, benefit checks' share of income doubled from 1969 to 2024, reaching 14.2%; pay from work is plotted alongside. Every fifth year and 2024 are shown.

  • Benefit checks
  • Pay from work
0%40%80% 196919741979198419891994199920042009201420192024 0%40%80% 196919791989199920092024
Source: U.S. Bureau of Economic Analysis, Regional Economic Accounts (CAINC4), shares of all personal income received by residents, Sioux County, Iowa American Default Research · americandefault.org/counties/iowa/sioux-county-ia/
Download data (CSV)

SNAP food aid is one of the benefit checks counted in the income totals above.

The share of households in Sioux County getting SNAP food aid was at its highest on the chart in 2016 and has since fallen by about half

Biggest drop: 2018 to 2019, reaching 4.7%. Households getting SNAP, every year; each bar is a five-year survey estimate ending that year, so neighboring bars share most of their data, Sioux County, Iowa.

0%3%6% 3.1%2.8% 2009201020112012201320142015201620172018201920202021202220232024 0%3%6% 3.1%2.8% 20092011201320152017201920212024
Source: U.S. Census Bureau, American Community Survey 5-year estimates American Default Research · americandefault.org/counties/iowa/sioux-county-ia/
Download data (CSV)

How Sioux County has changed

Sioux County's population rose by about a third to 36,554, the highest on the chart

Biggest rise: 1974 to 1979, reaching 30,560. Residents, yearly estimate, every fifth year and 2024, Sioux County, Iowa.

020,00040,000 27,59536,554 196919741979198419891994199920042009201420192024 020,00040,000 27,59536,554 196919791989199920092024
Source: U.S. Bureau of Economic Analysis, Regional Economic Accounts American Default Research · americandefault.org/counties/iowa/sioux-county-ia/
Download data (CSV)

The number of jobs located in Sioux County had its largest rise in the last span, from 20,818 in 2020 to 23,005 in 2025.

The number of jobs located in Sioux County doubled from 1990 to 2025, reaching 23,005, with no dip in any year shown

Smallest rise: 2015 to 2020, reaching 20,818. Yearly average of jobs covered by unemployment insurance, every fifth year and 2025, Sioux County, Iowa.

015,00030,000 11,80423,005 19901995200020052010201520202025 015,00030,000 11,80423,005 19901995200020052010201520202025
Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages American Default Research · americandefault.org/counties/iowa/sioux-county-ia/
Download data (CSV)
MeasureThenNowSource
Unemployment rateBLS LAUS 1990 2.8% 2025 2.3% BLS LAUS
People below the poverty lineCensus SAIPE 1989 8.6% 2024 7.3% Census SAIPE
Median household incomeCensus SAIPE 1989 $27,616 2024 $81,746 Census SAIPE

Figures are as each agency published them, not adjusted for prices.

Dated events in Sioux County's history

  1. 1851

    January 15, 1851 (created) January 1, 1860 (organized). Wikipedia

  2. 1860

    Created January 15, 1851; self-governed since January 20, 1860. Wikipedia

  3. 1869

    Larger immigration wave to Sioux County began 1869, primarily of Dutch settlers. Wikipedia

  4. 1968

    A tornado in September 1968 did $2.5 million in property damage. NOAA Storm Events Database

  5. 2005

    A thunderstorm in July 2005 killed one person. NOAA Storm Events Database

  6. 2014

    A tornado in May 2014 did $3 million in property damage. NOAA Storm Events Database

  7. 2020

    The county's largest recorded population was the 2020 Census count of 35,872, which is also its most recent census. Census Bureau

  8. 2024

    A flood in June 2024 did $6.5 million in property damage and killed one person. NOAA Storm Events Database

  9. Since 1965

    15 federal disaster and emergency declarations have covered Sioux County, 9 of them for flooding. FEMA

Sioux County beside its neighbors

Of the five counties that border Sioux County, in Iowa and South Dakota, three score higher. For the share of income from benefit checks, Sioux County ranks 4th of the six; O'Brien County is highest, at 21.0%.

CountyDistress scoreScoreRank in its state Poverty rateBenefit checks, share of incomeBenefit checks
O'Brien County, IA 6 70th of 99 9.3% 21.0%
Union County, SD 1 54th of 66 5.8% 7.7%
Plymouth County, IA 1 93rd of 99 7.6% 17.6%
Lincoln County, SD 0 65th of 66 3.8% 8.6%
Sioux County, IA 0 97th of 99 7.3% 14.2%
Lyon County, IA 0 99th of 99 7.3% 14.6%

Distress score: American Default Research, County Distress Index, data through Sep 2026; each county scored against all 3,144. Poverty rate: Census Bureau, Small Area Income and Poverty Estimates, 2024. Benefit checks: Bureau of Economic Analysis, 2024. Neighbors share a border, from Census county maps.

Is Sioux County the poorest county in Iowa?

No, Sioux County's poverty rate was 7.3% in 2024, 91st highest of 99 in Iowa (U.S. Census Bureau, Small Area Income and Poverty Estimates). By that measure the poorest county in the state is Decatur County, at 18.1%. On our distress index, which counts more than poverty, Sioux County ranks 97th of 99 in the state.

If you're behind on your mortgage in Sioux County

Housing counselors approved by the U.S. Department of Housing and Urban Development work at nonprofit agencies. The Consumer Financial Protection Bureau describes free foreclosure-avoidance counseling, including help with mortgage-company conversations and available options Source CFPB.

Iowa foreclosure guide →

The score, its 14 measures and their sources, in one file. Free to use with credit to American Default Research.

Download the CSV for Sioux County · Every U.S. county (CSV)

Cite this Sioux County, Iowa, scores 0 on the County Distress Index (data through Sep 2026): less distressed than 99% of U.S. counties · American Default Research · americandefault.org/counties/iowa/sioux-county-ia/

Sources and method

  • American Default Research · County Distress Index Data through Sep 2026, built from Urban Institute, Debt in America; Equifax via the St. Louis Fed; U.S. Courts, Table F-5A; Census Bureau, American Community Survey; HUD Fair Market Rents and Census income; Bureau of Labor Statistics, Local Area Unemployment Statistics; Census Bureau, Small Area Income and Poverty Estimates. The County Distress Index is American Default Research's own calculation; the Urban Institute does not produce or endorse it. Our methodology
  • Urban Institute · Debt in America Breno Braga, Signe-Mary McKernan, Samantha Atherton, and Kassandra Martinchek, "Debt in America," last updated November 20, 2025, https://datacatalog.urban.org/dataset/debt-america-2025. Licensed under ODC-By 1.0.
  • Rent on a two-bedroom and household income The rent share compares HUD fair market rent for fiscal year 2027 with Census Bureau median household income for 2024. The page calls this the typical household's income.
  • U.S. Bureau of Economic Analysis, Regional Economic Accounts (CAINC4) · income shares Where the money in Sioux County comes from, 2024.
  • History The agencies named in each row and the linked records above.