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Idaho County
Minidoka County, Idaho
Minidoka National Historic Site - the WWII Japanese American incarceration camp - from the Minidoka War Relocation Center (one of ten War Relocation Authority camps where Japanese Americans were incarcerated during World War II - at its peak, over 9,000 Japanese Americans - most of them US citizens from Oregon, Washington, and Alaska - were imprisoned at Minidoka on the Snake River Plain - the Minidoka National Historic Site preserves the camp's physical remnants and honors the experience of the incarcerated community, many of whose members simultaneously sent their sons to fight in the 442nd Regimental Combat Team, the most decorated unit in US Army history) and Minidoka County's significant potato and sugar beet production.
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Office: Minidoka County Sheriff’s Office – 715 G Street, P.O. Box 368, Rupert, ID 83350 | (208) 434-2320 / (208) 436-7180; Sheriff Dave C. Pinther, appointed 2021. Records Division – 724 H Street, Rupert, ID, hours Mon-Fri 8:30 AM-5 PM. Serves as part of the Mini-Cassia Criminal Justice Center.
Notes: For an active emergency, call 911.
Roads & Utilities
ROADS & TRANSPORTATION
Roads: I-84/86 serve Rupert, the county seat and largest city, part of the Burley Micropolitan Statistical Area.
Notes: Minidoka County was established January 28, 1913. Its name derives from a Dakota Sioux word meaning “a fountain or spring of water,” first applied in 1883 to a Union Pacific Oregon Short Line railroad spur and watering station in the middle of the Snake River Plain.
Business & Permits
BUILDING & PERMITS
Office: Minidoka County Courthouse – Rupert, ID.
Notes: Minidoka County shares its name with the well-known Minidoka War Relocation Center of WWII, though that camp was actually located in neighboring Jerome County – a naming connection worth clarifying, as the camp took its name from the nearby Minidoka railroad stop and irrigation project rather than being situated within Minidoka County itself.
Veterans Services
VETERANS SERVICES
Office: Minidoka County Veterans Services – confirm current contact via minidoka.id.us.
Libraries
LIBRARIES
Rupert Public Library (Rupert) – confirm current address/phone via the county library system.
Parks & Recreation
PARKS & RECREATION
Key Assets: Minidoka National Wildlife Refuge (spanning parts of Minidoka, Blaine, Cassia, and Power Counties, with roughly 80 miles of shoreline around Lake Walcott, established 1909) and downtown Rupert’s historic square are the county’s premier heritage and recreational attractions.
Notes: The genuine Native American linguistic origin of the “Minidoka” name, and its important but easily confused distinction from the nearby WWII Minidoka relocation camp (located in Jerome County), are both worth clarifying for residents and visitors.
GIS & Maps
GIS & MAPS
Appraisal/Parcel Search: Minidoka County Assessor’s Office – confirm current contact via minidoka.id.us.
Animal Services
ANIMAL SERVICES
Confirm current dedicated shelter contact via minidoka.id.us; Minidoka County Sheriff’s Office for animal control arrangements.
Environmental & Waste
ENVIRONMENTAL / WASTE MANAGEMENT
Office: Minidoka County Solid Waste / Weed Department – confirm current contact via minidoka.id.us.
NOTES: Minidoka County is the thirty-fifth county completed in Idaho’s Round 3 v2 redo, under the A+ sourced standard established for this project. The county’s Dakota Sioux-derived name and its distinction from the nearby WWII Minidoka relocation camp (actually in Jerome County) are clarified for accuracy. 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 Minidoka County
Minidoka County is the site of one of WWII’s Japanese American incarceration camps – the Minidoka National Historic Site preserves the remnants of the camp where 9,000+ Japanese Americans were imprisoned, many of whose sons simultaneously served in the 442nd Regimental Combat Team, the most decorated unit in US Army history.
Rupert (the county seat, population ~5,500) serves the county’s potato, sugar beet, and dairy farming communities on the Snake River Plain.
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Minidoka County Assessor at 715 G Street, Rupert, ID 83350, phone 208-436-7190. ID homeowner’s exemption up to $125,000.
Courts & Legal
Minidoka County District Court at 715 G Street, Rupert, ID 83350, phone 208-436-9250, handles probate.
Marriage & Vital Records
Marriage licenses, divorce records, and birth & death certificates are handled by the following office(s):
COUNTY CLERK / ADMINISTRATOR
715 G St., Rupert, ID 83350
(208) 436-9651
CLERK OF COURT (Records, Marriage Licenses)
715 G St., Rupert, ID 83350
(208) 436-9651
ELECTIONS / CLERK
715 G St., Rupert, ID 83350
(208) 436-9651
Genealogy
County-level record sources
Minidoka County Magistrate Court (probate/estate case files – see Probate section above).
Minidoka National Historic Site (Minidoka War Relocation Center) – a National Park Service unit preserving the history of Japanese American incarceration during WWII; a significant resource for descendants researching internment-era family history.
Local societies
No dedicated Minidoka 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
Minidoka County Magistrate Court 8th & G Streets, P.O. Box 368, Rupert, ID 83350 (208) 436-7186
Minidoka County is in south-central Idaho’s Magic Valley, and was the site of the Minidoka War Relocation Center, where Japanese Americans were incarcerated during World War II – now a National Historic Site.
Step 1: figure out which path applies
Idaho has adopted the Uniform Probate Code (Idaho Code Title 15). Idaho is also a community property state. Idaho recognizes four main paths:
Small Estate Affidavit – a non-court process for estates with a total value of $100,000 or less (excluding liens and encumbrances) and no real property. Available 30 days after death. No court filing required (Idaho Code § 15-3-1201).
Summary Administration – available when the value of all the decedent’s property is less than the homestead allowance, exempt property, and last-illness medical expenses combined, or when a surviving spouse is sole beneficiary (Idaho Code §§ 15-3-1203, 15-3-1205).
Informal Probate – the most common track for uncontested estates, handled through the court registrar.
Formal Probate – court-supervised proceedings required when disputes arise or the will is contested.
Step 2: filing
For informal probate with a will, file an Application for Informal Probate of Will and Appointment of Personal Representative with the Magistrate Division.
For formal probate, file a Petition for Probate of Will and Appointment of Personal Representative (or the equivalent for intestate estates).
Idaho does not have a statutory fee schedule for attorneys or personal representatives – fees must be reasonable given the services rendered and complexity.
If formal or informal probate is needed
Determine whether small estate affidavit, summary administration, or full probate applies.
File the appropriate application or petition with the Minidoka County Magistrate Court.
Under informal proceedings, the registrar reviews the application without a hearing. Under formal proceedings, a judge holds a hearing.
The personal representative accepts the appointment and may need to post a bond.
Once appointed, the court issues Letters Testamentary or Letters of Administration. Obtain several certified copies.
Publish notice to creditors as required.
Mail notice to all heirs, beneficiaries, and interested parties.
Marshal assets, obtain an EIN, open an estate account, pay valid debts and expenses, and prepare any required inventory.
Distribute remaining assets per the will or Idaho’s intestacy statutes, then close the estate.
What it costs
Idaho does not impose its own state estate or inheritance tax.
Idaho does not have a statutory fee schedule for attorneys or personal representatives.
Court filing fees and publication costs are separate – confirm current amounts with the Minidoka County Magistrate Court.
Probate in Idaho typically takes 6-12 months for uncontested estates.
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
715 G St., Rupert, ID 83350
(208) 436-4131
Elections & Voting
Voter registration, polling locations, and elections information are handled by the following office(s):
ELECTIONS / CLERK
715 G St., Rupert, ID 83350
(208) 436-9651
Health & Human Services
Offices & Contacts
Health services, social services, and assistance programs are handled by the following office(s):
Idaho Dept of Health & Welfare — South Central
(208) 736-3072
Idaho Medicaid
(800) 926-2588
Minidoka Memorial Hospital
minidokamemorial.com (Rupert)
Public Health Information
PUBLIC HEALTH
Office: South Central Public Health District (serving Minidoka County) – confirm current contact via phd5.idaho.gov.
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Last verified June 2026
County Facts
County Seat: Rupert
Population: 21,000
Area: 758 sq mi
Established: 1913
Tier: 3
Public Records
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