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Office: Osceola County Emergency Management – located in the Public Safety Building, Sibley, IA, alongside the Sheriff’s Office and dispatch.
Sheriff: Osceola County Sheriff’s Office – 309 6th Street, Sibley, IA 51249 | (712) 754-2556 | Fax (712) 754-2872; Sheriff Kevin Wollmuth (in office since 2021, a 35-year veteran of county law enforcement), Chief Deputy Seth Hofman, seven full-time deputies, six dispatchers, one jailer. Handles countywide law enforcement, jail operations, courtroom security, civil process, and hazardous material/methamphetamine lab response.
Notes: For an active emergency, call 911.
Roads & Utilities
ROADS & TRANSPORTATION
Roads: US-60 and IA-9 serve Sibley, the county seat and largest city, in Iowa’s extreme northwest corner.
Notes: Osceola County was created January 15, 1851, and organized January 1, 1872 (originally part of Woodbury County, then called Wahkaw County), named for Seminole war chief Osceola. Sibley, the county seat, was named for Henry Hastings Sibley of Minnesota.
Business & Permits
BUILDING & PERMITS
Office: Osceola County Courthouse – 3rd Avenue & 8th Street, Sibley, IA (built 1902-1903, architect E.N. Kinney; National Register of Historic Places since 1981; the second courthouse building in county history). Features a rotunda separated from hallways by column screens, wide friezes with medallions, an oval floor opening, and brass railings.
Notes: Just north of Sibley sits Hawkeye Point, at 1,670 feet the highest natural point in the state of Iowa. This genuine geographic landmark, along with the county’s other small communities (Ocheyedan, Ashton, Melvin, and Harris), makes Osceola County a notable stop for elevation “highpointers” touring all 50 states.
Veterans Services
VETERANS SERVICES
Office: Osceola County Veterans Affairs – confirm current contact via osceolacountyia.gov.
Libraries
LIBRARIES
Sibley Public Library (Sibley) – confirm current address/phone via the county library system.
Parks & Recreation
PARKS & RECREATION
Key Assets: Hawkeye Point (Iowa’s highest natural elevation, 1,670 feet, just north of Sibley) is the county’s premier natural landmark and draws visitors specifically for its elevation distinction.
Notes: The genuine status of Hawkeye Point as Iowa’s true highest point is among the standout geographic facts covered in this project.
GIS & Maps
GIS & MAPS
Appraisal/Parcel Search: Osceola County Assessor’s Office – confirm current contact via osceolacountyia.gov.
Animal Services
ANIMAL SERVICES
Humane Society of Northwest Iowa – serves Osceola County alongside Dickinson, Clay, Emmet, Palo Alto, and O’Brien counties; a 501(c)(3) nonprofit providing shelter, care, and rehabilitation. Confirm current physical location and phone via humanesocietyofnwia.com.
Environmental & Waste
ENVIRONMENTAL / WASTE MANAGEMENT
Office: Osceola County Environmental Health – confirm current contact via osceolacountyia.gov.
NOTES: Osceola County is the seventy-fourth county in Iowa’s Round 3 v2 redo, under the A+ sourced standard established for this project. The genuine status of Hawkeye Point as Iowa’s true highest point is among the standout geographic facts covered in this project. All contact information above was sourced via web search as of early August 2026 and should be reconfirmed directly with the relevant office before a visit, deadline-sensitive filing, or emergency-adjacent decision.
About Osceola County County
Osceola County is northwest Iowa’s flat Drift Plain and tri-state corner agricultural county – the nearly level glaciated terrain near the Minnesota and South Dakota borders and the intensive corn and soybean production define a remote Iowa community where Sibley serves the county’s farming families in one of Iowa’s most geographically isolated corners.
Sibley (the county seat, population ~2,700) is Osceola County’s governmental hub on US 60, a northwest Iowa agricultural community whose corn and soybean economy and courthouse anchor its identity near the tri-state corner.
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Osceola County Assessor at 300 7th Street, Sibley, IA 51249, phone 712-754-2241. IA assessed at actual value.
Courts & Legal
Osceola County District Court at 300 7th Street, Sibley, IA 51249, phone 712-754-3595, handles probate.
Marriage & Vital Records
Marriage licenses, divorce records, and birth & death certificates are handled by the following office(s):
CLERK OF DISTRICT COURT (Court Records, Marriage Licenses)
300 7th St., Sibley, IA 51249
(712) 754-3835
Genealogy
County-level record sources
Osceola County District Court (probate/estate case files – see Probate section above).
Local societies
No dedicated Osceola County genealogical society was confirmed in available directories.
Probate & Estate
Losing someone and having to deal with courts and paperwork at the same time is hard. This section won’t make that easier, but it should tell you what to expect, what it costs, and where to go – so at least you’re not walking in blind.
Where to go
Osceola County District Court, 3rd Judicial District 300 7th Street, Sibley, IA 51249 (712) 754-3595 Osceola County is in Iowa’s extreme northwestern corner, seated in Sibley.
Step 1: figure out which path applies
Iowa has its own comprehensive probate code (Iowa Code Chapter 633) and has not formally adopted the Uniform Probate Code. Iowa offers several tracks depending on estate size and complexity:
Distribution by Affidavit (“very small estates”) – for estates where the gross value of personal property is $50,000 or less and there is no real estate, available 40 days after death under Iowa Code § 633.356. A sworn affidavit is presented directly to banks and other institutions. No court filing is required.
Small Estate Administration – a simplified probate process under Iowa Code Chapter 635 for estates with a gross value of $200,000 or less, with reduced notice requirements and court costs compared to full administration.
Regular (Full) Probate – standard administration through the district court for larger or more complex estates, which can be independent (unsupervised) or supervised.
Supervised Administration – closer court oversight, typically used for contested estates.
Step 2: filing for formal probate
File a Petition for Probate of Will and Appointment of Executor (if there’s a will) or a Petition for Administration (if intestate) with the Osceola County District Court.
The court admits the will (if any) and issues Letters Testamentary (with a will) or Letters of Administration (intestate) appointing the personal representative.
Publish notice to creditors; under independent administration, creditors generally have 4 months from the date of first publication to file claims.
The personal representative inventories assets, pays valid debts and expenses, and – under independent administration – largely acts without ongoing court check-ins.
After the creditor period closes and debts are paid, the personal representative distributes assets to heirs or beneficiaries.
File a final accounting/final report; the court closes the estate upon approval.
What it costs
Personal representative fees are capped by statute at 3% of the gross value of the probate estate (excluding life insurance) unless services are itemized; attorney fees follow a similar framework.
Recording fees at the county recorder run about $7 for the first page of a document and $5 for each additional page.
Typical timelines: Distribution by Affidavit – a minimum 40-day wait; independent (unsupervised) probate typically closes in 6-12 months, with the 4-month creditor period as the primary timing constraint.
Probate filings, estate administration, and guardianship matters are handled by the following office(s):
Public Safety & Arrests
Arrest records, inmate search, and law enforcement services are handled by the following office(s):
SHERIFF
300 7th St., Sibley, IA 51249
(712) 754-3636
Elections & Voting
Voter registration, polling locations, and elections information are handled by the following office(s):
COUNTY AUDITOR (Records, Elections, Finance)
300 7th St., Sibley, IA 51249
(712) 754-3595
ELECTIONS (County Auditor)
300 7th St., Sibley, IA 51249
(712) 754-3595
Health & Human Services
Offices & Contacts
Health services, social services, and assistance programs are handled by the following office(s):
Office: Osceola County Public Health – confirm current contact via osceolacountyia.gov.
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Last verified June 2026
County Facts
County Seat: Sibley
Population: 6,100
Area: 399 sq mi
Established: 1872
Public Records
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