Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. Every office link was opened and checked against the office's own site between September 24, 2026 and September 30, 2026.
Lyon County, Iowa, has about 12,000 residents (2024 Census Bureau estimate). The title to a parcel in Lyon County is in the deed records of the County Recorder and its taxable value is set by the County Assessor; what is built on it is a matter for the city or the county. This guide says who keeps each record and where the page for each office is.
This guide covers deeds, assessed values, evictions and court cases, records requests, directory links and common questions.
Related guides: Lyon County public records, Lyon County arrest records, Lyon County warrants, Lyon County inmate search, Lyon County criminal records, Iowa arrest records and Iowa inmate search.
Deeds, Mortgages and Liens in Lyon County
Deeds, mortgages, liens and easements that affect title to land in Lyon County are recorded by the County Recorder, which indexes them by name and sells copies.
SearchSystems opened and checked the County Recorder's page at lyoncounty.iowa.gov/recorder (page title: Recorder of Lyon County, Iowa), phone (712) 472-8528, 206 S. 2nd Ave. Suite 203 Rock Rapids, IA 51246, Monday - Friday 8:00 am - 4:30 pm, which answered when SearchSystems opened it on September 30, 2026.
Assessed Values and the Tax Roll in Lyon County
What a parcel in Lyon County is taxed on is the business of the County Assessor, which also keeps the parcel maps. Iowa reassesses property in odd-numbered years and applies a statewide rollback, so the taxable value is a fraction of the assessed value.
SearchSystems opened and checked the County Assessor's page at lyoncounty.iowa.gov/assessor (page title: Assessor of Lyon County, Iowa | County Government), phone (712) 472-8550, 206 S. 2nd Ave. Suite 103, First Floor Rock Rapids, IA 51246, Monday - Friday 8:00 am - 4:30 pm, which answered when SearchSystems opened it on September 30, 2026.
Evictions and Court Cases About Land in Lyon County
Court cases about land from Lyon County, evictions among them, are filed in the Iowa District Court for Lyon County.
The court records page SearchSystems verified for the county is at iowacourts.state.ia.us/ESAWebApp/ESALogin.jsp.
Asking a County Office for a Record
Under the Iowa Open Records Law (Chapter 22) a county office must answer a request without delay; the law sets no fixed number of days, and a delay past 20 days must be justified, and it may charge the actual cost of copying and retrieval.
More Official Property and Land Records Pages for Lyon County
The SearchSystems directory, online since 1997, lists the official pages for Lyon County and Iowa. These recorded document pages from its Lyon County listing were opened again on October 2, 2026 and each one still answers:
- Recording Fees in Lyon County, Iowa (lyoncounty.iowa.gov)
Frequently Asked Questions
Who records deeds in Lyon County?
The County Recorder, at lyoncounty.iowa.gov/recorder, phone (712) 472-8528. Deeds, mortgages and liens on land in Lyon County are filed there, and the County Assessor (lyoncounty.iowa.gov/assessor) has the assessment records.
Who sets the assessed value of a property in Lyon County?
The County Assessor, whose page SearchSystems verified is at lyoncounty.iowa.gov/assessor.
Where are evictions from Lyon County filed?
In the Iowa District Court for Lyon County. The file is public unless the court seals it.
How is property assessed in Iowa?
Iowa reassesses property in odd-numbered years and applies a statewide rollback, so the taxable value is a fraction of the assessed value.
Is this the official Lyon County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.