Who is the Sioux County County Attorney?

Thomas Kunstle (Republican) is the County Attorney of Sioux County, Iowa. The seat was on the November 3, 2026 ballot; the count isn't certified yet.

Who is the Sioux County County Auditor?

Joe E. Van Tol (Republican) is the County Auditor of Sioux County, Iowa.

Who is the Sioux County County Recorder?

Jessica Kooiker (Republican) is the County Recorder of Sioux County, Iowa. The seat was on the November 3, 2026 ballot; the count isn't certified yet.

Who is the Sioux County Sheriff?

Jamie Van Voorst (Republican) is the Sheriff of Sioux County, Iowa.

Who is the Sioux County County Treasurer?

Daniel D. Zomermaand (Republican) is the County Treasurer of Sioux County, Iowa. The seat was on the November 3, 2026 ballot; the count isn't certified yet.

Who are the Sioux County commissioners?

John Degen (County Supervisor, District 1); Jerry Muilenburg (County Supervisor, District 2); Dan Altena (County Supervisor, District 3); Carl Vande Weerd (County Supervisor, District 4); Craig Hoftyzer (County Supervisor, District 5).

What is the population of Sioux County?

About 36,212 people, with a median age of 33.8; the median household income is $86,098 and 6.7% live below the poverty line (Census Bureau, American Community Survey 2020–2024 5-year estimates).

What is the unemployment rate in Sioux County?

2.1% in September 2026 (preliminary): 469 people unemployed in a labor force of 22,067, against 1.8% a year earlier (Bureau of Labor Statistics, Local Area Unemployment Statistics, not seasonally adjusted).

How many local governments are there in Sioux County?

23 in the Census Bureau's 2022 Census of Governments: 1 county, 13 municipal, 5 school district and 4 special district governments.

Sioux County, IA elected officials: county supervisors, sheriff, school board and cities

Who holds every elected county, school board, city and special-district office in Sioux County: 10 seats on 6 elected bodies. 5 seats were on the November 3, 2026 ballot; they update once the county certifies its results.

Board of Supervisors

Sioux County Board of Supervisors

Each member is elected by the voters of their district.

Office	Who holds it now	Next term
County Supervisor, District 1	John Degen Republican source
County Supervisor, District 2	Jerry Muilenburg Republican source	On the Nov 3, 2026 ballot: count not certified yet
County Supervisor, District 3	Dan Altena Republican source
County Supervisor, District 4	Carl Vande Weerd Republican source	On the Nov 3, 2026 ballot: count not certified yet
County Supervisor, District 5	Craig Hoftyzer Republican source

County officers

Office	Who holds it now	Next term
County Attorney	Thomas Kunstle Republican source	On the Nov 3, 2026 ballot: count not certified yet
County Auditor	Joe E. Van Tol Republican source
County Recorder	Jessica Kooiker Republican source	On the Nov 3, 2026 ballot: count not certified yet
Sheriff	Jamie Van Voorst Republican source
County Treasurer	Daniel D. Zomermaand Republican source	On the Nov 3, 2026 ballot: count not certified yet

How many local governments Sioux County has

The Census Bureau's 2022 Census of Governments counts 23 local governments in Sioux County. This page lists the ones whose offices are elected.

Kind of government	Census count (2022)	Listed on this page
County government	1	1
Cities, towns, villages and townships	13	0
School districts (school boards)	5	0
Special districts (elected boards)	4	0

Census Bureau, 2022 Census of Governments: Government Units Listing (census.gov).

About these counts

The Census Bureau counts every independent local government once, in the county it assigns it to: the one it mostly serves or where it's based. A city or district that crosses county lines is counted in only one county, so it may be listed on this page but counted elsewhere, or the other way around. Many special districts, such as housing authorities, have appointed boards, and some places have more than one elected body, so the two columns measure different things. School systems run by a county, city or the state aren't counted as separate governments, though their boards may be listed here; in some states the Bureau counts community or state colleges as school districts. The counts are as of 2022.

Who lives in Sioux County

36,212people

33.8median ageU.S.: 38.9

$86,098 household incomeU.S.: $80,734

6.7%below the U.S.: 12.5%

30.6%of adults 25+ with a bachelor's degreeU.S.: 35.7%

$250,100median home valueU.S.: $332,700

1.5%unemployed (of the labor force)U.S.: 5.2%

8.5%born outside the U.S.U.S.: 14.1%

3.7%of adults are veteransU.S.: 6.2%

5.8%U.S.: 8.4%

30%of renting households pay of income on rentU.S.: 51.1%

20.1%of homeowners with a mortgage pay of income on housing costsU.S.: 28.1%

Race and Hispanic origin: Hispanic or Latino 14.3% · White 82.8% · Black 0.6% · Asian 0.5% · Other or more than one race 1.7% (Hispanic or Latino people can be of any race; the other groups are non-Hispanic.)

Census Bureau, 2020–2024 5-year estimates (data.census.gov).

About these figures

The American Community Survey asks about 3.5 million households a year about who lives there, their work, income, schooling and housing. The 5-year estimates pool 2020–2024 answers so that every county and district has enough of them. They're estimates with a (larger for smaller places), and they're different from the once-a-decade census count. "Median" means half are above and half below. Household income is before taxes and includes everyone in the household. The unemployment share here is the survey's five-year average, so it differs from the monthly rate in the BLS jobs report. Race and Hispanic origin are as people describe themselves.

Health insurance means any coverage, private or public (such as Medicaid or Medicare), when people answered; the share is of everyone except people on active military duty and people living in institutions such as prisons and nursing homes. The housing shares are of renting households, and of homeowners with a mortgage, for whom the Census Bureau can compute them (households with no income, or renters who pay no cash rent, are left out). Rent here is gross rent, rent plus utilities; owner costs include the mortgage, property taxes, insurance, utilities and fees.

Jobs in Sioux County

2.1%September 2026, preliminary. A year earlier: 1.8%. Iowa: 3.2%.

469people unemployedSeptember 2026, preliminary.

21,598people employedSeptember 2026, preliminary. Counted where they live, not where they work.

22,067in the September 2026, preliminary.

Yearly average unemployment rate, 2016–2025.

Every month, last two years

Month	Rate	Unemployed	Employed	Labor force
September 2026 (preliminary)	2.1%	469	21,598	22,067
August 2026	2.2%	472	21,259	21,731
July 2026	2.4%	528	21,405	21,933
June 2026	2.4%	525	21,668	22,193
May 2026	1.9%	433	21,803	22,236
April 2026	1.7%	378	21,981	22,359
March 2026	2.5%	564	21,954	22,518
February 2026	2.8%	612	21,629	22,241
January 2026	3.0%	665	21,197	21,862
December 2025	2.4%	540	21,871	22,411
November 2025	1.8%	397	21,946	22,343
October 2025	not collected (2025 federal shutdown)
September 2025	1.8%	398	22,204	22,602
August 2025	2.0%	444	21,716	22,160
July 2025	2.5%	570	22,084	22,654
June 2025	2.2%	500	22,145	22,645
May 2025	2.3%	519	22,336	22,855
April 2025	2.1%	482	22,779	23,261
March 2025	2.7%	624	22,460	23,084
February 2025	2.9%	653	22,005	22,658
January 2025	3.1%	690	21,822	22,512
December 2024	2.0%	441	21,902	22,343
November 2024	2.1%	455	21,704	22,159
October 2024	2.0%	454	22,298	22,752

Yearly averages

Year	Rate	Unemployed	Employed	Labor force
2025 (11 months)	2.3%	529	22,124	22,653
2024	2.1%	463	21,854	22,317
2023	2.0%	444	21,895	22,339
2022	2.0%	439	21,974	22,413
2021	2.3%	487	21,043	21,530
2020	2.6%	544	20,247	20,791
2019	1.8%	388	20,655	21,043
2018	1.8%	372	19,978	20,350
2017	2.0%	406	19,709	20,115
2016	2.3%	477	20,002	20,479

Bureau of Labor Statistics, Local Area Unemployment Statistics, : BLS publishes county figures only that way, so they rise and fall with the seasons; compare a month with the same month a year earlier rather than with the month before. Iowa's figure above is on the same basis; seasonally adjusted, as in BLS's monthly state release, it was 3.2% in September 2026. The latest month is preliminary and is revised the next month, and BLS revises earlier years each spring. People are counted where they live. October 2025 wasn't collected during the 2025 federal government shutdown, so 2025's yearly average covers 11 months.

Crime reported in Sioux County

33.1 per 100,0002025. Iowa: 233.9.

248.1 per 100,0002025. Iowa: 1,171.7.

0murders2025, 12 violent crimes in all.

Earlier years

Year	Violent	Rate	Property	Rate
2025	12	33.1	90	248.1
2024	20	54.9	69	189.4
2023	27	75.2	92	256.4
2020	30	86.3	123	353.9
2019	24	69.1	134	386.1
2018	6	17.2	82	235.6
2017	23	65.9	138	395.7
2016	15	42.9	151	432.0

By police agency (5)

Agency	Year	Violent	Property	People served
Sioux County Sheriff's Office	2024	13	35	14,684
Sioux Center Police Department	2025	1	43	8,786
Orange City Police Department	2025	3	9	6,616
Rock Valley Police Department	2025	1	5	4,012
Hawarden Police Department	2020	4	5	2,434

Crimes to the county's city and county police agencies (FBI Uniform Crime Reporting, Return A), per 100,000 people they serve. Years with incomplete reporting are left out. Crime in Iowa · the U.S.

Police staffing

1.30 per 1,000 residents2025, 5 agencies serving 36,272 people.

47sworn officers2025, full-time, as of October 31.

25civilian staff2025, full-time.

Agencies counted (5), 2025

Agency	Officers	Civilians	People served
Sioux County Sheriff's Office	17	25	14,244
Sioux Center Police Department	11	0	8,786
Orange City Police Department	9	0	6,616
Rock Valley Police Department	6	0	4,012
Hawarden Police Department	4	0	2,614

Earlier years

Year	Officers	Per 1,000	Civilians	Agencies
2025	47	1.30	25	5
2024	45	1.24	27	5
2023	44	1.23	30	5
2021	39	1.11	26	5
2020	39	1.12	26	5
2019	38	1.09	27	5
2017	38	1.09	26	5
2016	37	1.06	26	5

Full-time employees of the county's city police departments and sheriff's office, as each reported them to the FBI (Uniform Crime Reporting, Law Enforcement Employees), per 1,000 people in the areas those agencies serve (the FBI's population figures). A year is shown only when every one of these agencies sent a count; a count under half or over double the agency's own counts in nearby years is treated as not sent. Towns policed under contract by another agency are counted through that agency. State police, campus and other agencies aren't included. Sheriffs' offices often also run the county jail and courthouse security, so their staff counts include those jobs.

Quick answers

Who is the Sioux County County Attorney?: Thomas Kunstle (Republican) is the County Attorney of Sioux County, Iowa. The seat was on the November 3, 2026 ballot; the count isn't certified yet.
Who is the Sioux County County Auditor?: Joe E. Van Tol (Republican) is the County Auditor of Sioux County, Iowa.
Who is the Sioux County County Recorder?: Jessica Kooiker (Republican) is the County Recorder of Sioux County, Iowa. The seat was on the November 3, 2026 ballot; the count isn't certified yet.
Who is the Sioux County Sheriff?: Jamie Van Voorst (Republican) is the Sheriff of Sioux County, Iowa.
Who is the Sioux County County Treasurer?: Daniel D. Zomermaand (Republican) is the County Treasurer of Sioux County, Iowa. The seat was on the November 3, 2026 ballot; the count isn't certified yet.
Who are the Sioux County commissioners?: John Degen (County Supervisor, District 1); Jerry Muilenburg (County Supervisor, District 2); Dan Altena (County Supervisor, District 3); Carl Vande Weerd (County Supervisor, District 4); Craig Hoftyzer (County Supervisor, District 5).
What is the population of Sioux County?: About 36,212 people, with a median age of 33.8; the median household income is $86,098 and 6.7% live below the poverty line (Census Bureau, American Community Survey 2020–2024 5-year estimates).
What is the unemployment rate in Sioux County?: 2.1% in September 2026 (preliminary): 469 people unemployed in a labor force of 22,067, against 1.8% a year earlier (Bureau of Labor Statistics, Local Area Unemployment Statistics, not seasonally adjusted).
How many local governments are there in Sioux County?: 23 in the Census Bureau's 2022 Census of Governments: 1 county, 13 municipal, 5 school district and 4 special district governments.

Officeholders as of November 6, 2026, from county election offices' elected-officials pages where they publish one, and elsewhere from the Iowa Secretary of State's certified 2022 and 2024 general election results (each seat's last election); officials appointed since then may differ; each name links to its source. Officials change between elections (appointments, resignations), and the body's own website is the authority. Party is shown only for offices elected on a partisan ballot.

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