Dubuque County, Iowa

Tax Lien99,242 residents

County research last verified 2026-07. Office holders, platforms, and deposit rules change — re-confirm anything time-sensitive.

Sale typestate default

Tax Lien

Redemption periodstate default

1 year, 9 months from sale

Investor returnstate default

2% per month (24%/yr) statutory

Governing statutestate default

Iowa Code Ch. 446–448

Notes

Iowa tax-lien certificate county. Dubuque County Treasurer administers the annual tax sale under Iowa Code Ch. 446. 2026 sale: Monday, June 15, 2026 at 9:00 a.m., online bids only. Notice to Tax Sale Purchasers and delinquent publication list posted on county Treasurer page. Winning bidders receive tax sale certificates; redemption interest is 2% per month under Iowa law. After statutory wait (~1 year 9 months before deed process), certificate holders may pursue tax sale deed. Unsold parcels and subsequent sales follow county terms each year.

Auction logistics

Format

Online

Frequency

Annual third-Monday-in-June pattern (2026: June 15 online from 9:00 a.m.)

Platform

Dubuque County Treasurer — Annual Online Tax Sale (IowaTaxAuction / county online bidding) ↗

Deposit rules

Register and fund per 2026 Notice to Tax Sale Purchasers PDF on the Treasurer site. Online-only bidding; ACH/funding rules and certificate fees set in annual notice. Office: 720 Central Avenue, Dubuque; (563) 589-4450. Review publication report before bidding.

Title risk

Liens that survive the sale

Tax sale certificate is not ownership. Mortgages, federal liens, and municipal assessments can remain until a valid tax sale deed issues after the statutory process — full diligence required.

Quiet title

After tax sale deed, title insurers commonly require quiet title or extended seasoning before insuring free-and-clear marketable title.

Offices and records

Tax collector

Dubuque County Treasurer (Michael Clasen) — Tax Sale ↗

563-589-4450

Clerk of court

Dubuque County Recorder / Clerk of Court (land records) ↗

Property appraiser

Dubuque County Assessor — Beacon parcel search ↗

GIS / parcel map

Dubuque County Assessor Beacon GIS / parcel maps ↗

Areas trending up

Directional read from dated market analysis — not a guarantee, and not a substitute for your own comps.

Downtown Dubuque / Millwork District

Riverfront redevelopment and tourism supporting selective multifamily and SF turns

West Dubuque / Asbury fringe

Suburban school-driven demand with stronger resale liquidity than soft core blocks

Dyersville / west county industrial edge

Manufacturing employment and relative value with logistics adjacency