Minnehaha County

The Detention Center

Minnehaha County Jail

• Operated byMinnehaha County Sheriff's Office, Jail Division (Warden Mike Mattson)
• Detention commandMike Mattson — Warden
• Address305 W. 4th St., Sioux Falls, SD 57104
• FeesSentenced inmates are charged a $10 daily room-and-board fee; electronic messages via the NCIC.com system cost $0.25 each, replacing traditional mail
• PREACounty's own PREA page states 'The 2025 PREA Audit can be found at The National PREA Resource Center'; describes zero-tolerance policy, PREA Coordinators, and a Compliance Manager
• Roster / bond'Who's Behind Bars' online roster updated every 15 minutes; bond posting available via CourtMoney online, with a note that 'bond amounts may not be correct' and a direction to call the jail to confirm
• What was triedhttps://www.minnehahacounty.gov/dept/so/divisions/jail/jail.php and its linked pages fetched; bed capacity, year built, funding, deaths in custody, inspection reports, and interagency housing contracts/rates were not found published on the county's own site

Source: Minnehaha County — Jail Division · checked 2026-08-25

• ✓The jail is named
• ✓Who is in custody
• ✗Beds and daily population — not published
• ✗What it costs taxpayers — not published
• ✗Deaths in custody — not published
• ✓PREA audits
• ✗Independent inspection — not published
• ✗Who else it holds, and for how much — not published
• ✓How to post bond
• ✓Phone, video and commissary rates

This rates disclosure, not conduct — what Minnehaha County publishes about a jail its taxpayers own, checked 2026-08-25. Nothing here says the jail is run well or badly. Every mark moves the moment the county posts the document.

The Building

You paid for it. Here is what the record says it cost.

• Year builtNot found
• Original costNot found
• Paid for byNot found
• BedsNot found

The Sheriff

Sheriff Mike Milstead

• Runs the jailSheriff's Office operates the Minnehaha County Jail (Jail Division) as one of its divisions, per the county's own site
• How the office is filledElected countywide, four-year term (SDCL 7-7-1.1); South Dakota Sheriffs' Association biography states he was sworn in as Sheriff of Minnehaha County in May 1997

Source: Minnehaha County — Sheriff's Office · checked 2026-08-25

The Judges

South Dakota circuit judges are elected in a nonpartisan election for an eight-year term (S.D. Const. Art. V, sec. 7; SDCL 16-6-3); a mid-term vacancy is filled by the Governor from two or more nominees of the Judicial Qualifications Commission. Magistrate judges, who in practice handle most rural first appearances and bail-setting under SDCL 16-12B-7, are not elected: the presiding judge of the circuit nominates them and the Supreme Court approves or disapproves the appointment (SDCL 16-12B-1.2); full-time magistrates serve four-year terms, part-time magistrates serve at the presiding judge's pleasure (SDCL 16-12B-1.3). Named circuit or magistrate judges for this county were not located from the sources reviewed in this pass.

Source: the state judiciary · checked 2026-08-25

The County Commissioners

They pay for the jail. The sheriff runs it.

• What they controlThe detention budget, the building itself, and the agreements that let other agencies rent its beds.
• What they don'tDay-to-day operations. The sheriff is separately elected and answers to voters, not to the board.
• The boardBoard of County Commissioners →
• Where the jail money is decidedAgendas and minutes →