Osceola County Treasurer
Becky MarcoTook Office: January 1, 2011
Services and Information
Osceola County Office Information
2026 Tax Sale Information - The 2026 Osceola County Tax Sale will begin at 9:00 a.m. on Monday, June 15th, 2026. The sale will be conducted at the Osceola County Courthouse and bidders shall place their bids online. Bidders need not be present at the courthouse.
2026 Osceola County NOTICE TO TAX SALE PURCHASERS Osceola County 2026 Bidder Listing
Send an Email
Becky Marco, Treasurer - bmarco@osceolacioa.org
Sara Howard, Deputy - showard@osceolacoia.org
Barb Seivert, Clerk - bseivert@osceolacoia.org
Frances Reiter, Clerk - freiter@osceolacoia.org
Phone Number
Phone: (712) 754-2117
Fax: (866) 985-0668
Location
Osceola County Treasurer's Office
300 7th St
Sibley IA 51249
Handicap parking located on the north side of courthouse.
Hours
Property Tax & Motor Vehicle Services
M-F 8:00-4:30
Drivers License
M-F 8:30-4:00
- Written Test 8:30-3:30
- Drive Test - By Appointment
Mailing Address
Osceola County Treasurer
300 7th St., PO Box 166, Sibley IA 51249
Website
https://osceolacountyia.gov/ (opens in new tab)
Holiday Closings:
| Thursday, Jan. 1, 2026 | New Year’s Holiday |
| Monday, Jan. 19, 2026 | Martin Luther King Jr. Day |
| Monday, May 25, 2026 | Memorial Day |
| Friday, July 3, 2026 | Independence Day |
| Monday, Sept. 7, 2026 | Labor Day |
| Wednesday, Nov. 11, 2026 | Veteran’s Day |
| Thursday, Nov. 26, 2026 | Thanksgiving Day |
| Friday, Nov. 27, 2026 | Day After Thanksgiving |
| Thursday, Dec. 24, 2026 | Christmas Holiday |
| Friday, Dec. 25, 2026 | Christmas Holiday |
| Friday, Jan. 1, 2027 | New Year’s Holiday |
Property Tax Information
2026 Tax Sale Information- The 2026 Osceola County Tax Sale will begin at 9:00 a.m. on Monday, June 15th, 2026. The sale will be conducted at the Osceola County Courthouse and bidders shall place their bids online. Bidders need not be present at the courthouse.
2026 Osceola County NOTICE TO TAX SALE PURCHASERS
Pay your property taxes online quickly and securely. Search by owner name, parcel number, receipt number, or street address.
We accept Discover Card, MasterCard, Visa Card, and Electronic Check (eCheck). A non-refundable Service Delivery Fee applies.
Vehicle Registration Renewal
Renew your vehicle registration online 24 hours a day, 7 days a week. You will need your plate number and either the PIN from your renewal notice or the audit number from your registration renewal receipt.
We accept Discover Card, MasterCard, Visa Card, and Electronic Check (eCheck). A non-refundable Service Delivery Fee applies.
Osceola County Driver's License Services
Drivers License
M-F 8:30-4:00
- Written Test 8:30-3:30
- Drive Test - By Appointment (712-754-2117)

