Direct links to official Plymouth County, Iowa public records: courts, criminal, vital, property, business, licenses, and more.
Searching Plymouth County: what to expect
Plymouth County keeps a modest online footprint — 3 of the 15 sources below are the county's own; the rest is statewide coverage. You don't need a county-level docket here — Iowa courts are searchable statewide, mapped on our Iowa court records page. Two local sources do most of the work — plymouth.iowaassessors.com for parcel and property-tax data, plymouthcountyiowa.gov for local vital-records requests. One gap: criminal records aren't published by the county itself. Use the Iowa criminal records page for those.
Last reviewed: June 04, 2026 · Methodology: all Plymouth County record-source URLs verified against the official local and Iowa state publishers on the review date. 4 primary .gov / official sources cited below.
Plymouth County — Key Numbers (2026)
Population, demographics, and county-seat data for Plymouth County, Iowa — verified against U.S. Census 2024 estimates.
25,825
Population
Census estimate
10,214
Households
Census estimate
$79,963
Median income
Annual household
$199,800
Median home value
Census ACS
Le Mars
County seat
In Iowa
Plymouth County Records Availability Map
Criminal records
see state portal
Court records
2 sources
Wants & warrants
see state portal
Property records
4 sources
Vital records
2 sources
Voter records
2 sources
Professional licenses
1 source
Recorded documents
see state portal
Count of verified official sources per record type. Multiple sources One source Use state portal
Step 1 — Start at the Plymouth County clerk/courthouse
For most local records (court cases, property deeds, marriage licenses), the Plymouth County clerk's office is the first stop.
2
Step 2 — Use the Iowa statewide systems
Criminal background, court case search, voter registration, and professional licensing are all run at the Iowa state level — not by the county.
3
Step 3 — Federal sources for federal records
Federal court cases (PACER), federal tax liens (IRS), military records (NPRC), and immigration data (ICE) are all federal — not held by the county.
4
Step 4 — Cross-check before relying on data
Most county portals lag 24-48 hours behind the courthouse. For time-sensitive verification, call the clerk directly.
Five Things People Get Wrong About Plymouth County Records
MYTH"Plymouth County maintains all criminal records."
FACTCriminal records for Plymouth County are held by the Iowa state repository, NOT the county. The county sheriff has only the local arrest log.
MYTH"Records sealed in Plymouth County are gone everywhere."
FACTSealing removes records from public search but they still exist at the courthouse and may appear in FBI records (Identity History Summary).
MYTH"Free 'instant background' sites have Plymouth County data."
FACTOnly the official Iowa state repository has verified, current Plymouth County data. Free sites often have stale data.
MYTH"The Plymouth County assessor's value is what I'll sell my home for."
FACTThe Plymouth County assessor's value is for property tax purposes only — usually below market value.
MYTH"All county records older than 50 years are public."
FACTPartially false. Public-records rules vary by record type AND state. Court records and deeds are usually older-public; vital records remain restricted longer (often 75-125 years).
Please check the Treasurers Office for any unsold properties · Accepted On-Line Payment Methods-eCheck, Discover, MasterCard and Visa are accepted for Internet transactions. You can now access the Assessor Property Information on each parcel from Step 3 of the property tax application.
Home Real Estate Search Sale Search Building Search Assessor's Duties Reducing Tax Liability Owner's Legal Responsibility As Plymouth County has been declared a disaster county the time to file a Board of Review protest has been extended. Board of Review petitions may be filed from April 2-June 5. Forms are located on the Plymouth County website at https://plymouthcountyiowa.gov · Property owners may inquire at the Assessor's office regarding an informal protest from April 2-May 25.
The Plymouth County Assessor may provide property information to the public "as is" without warranty of any kind, expressed or implied. Assessed values are subject to change by the assessor, Board of Review or State Equalization processes. Additionally, statutory exemptions may affect the taxable.
Vital Records In Iowa, official registrations of births, deaths and marriages began in 1880. Copies of birth, death and marriage records from 1880 to the present are available for viewing during regular business hours. County recorders do not have code authority to have on record single-parent.
Voting & Elections To access the new State of Iowa Voter Registration System, you can go to either of these 3 websites: www.sos.iowa.gov then click on “Register to vote” www.iowadot.gov then click on “Online Services” mymvd.iowadot.gov Elections Primary & General Election Register to.
If a voter is not registered to vote and wishes to vote an absentee ballot in the Auditor’s office between Tuesday, May 19th through Monday, June 1st, the voter will be required to complete the EDR (Election Day Registration) process in the Auditor’s Office prior to casting the absentee ballot.
Recorded land documents for Plymouth County, Iowa — deeds, mortgages, and liens. Documents index by grantor and grantee, so search both directions to catch everything. Military discharge records (DD-214s) are held here as well but stay restricted by law.
Official public records resource for Plymouth County, Iowa. Start here before paying any commercial site for the same information. It is the authoritative source for this record type in its jurisdiction.
Frequently Asked Questions
How do I look up court cases in Plymouth County?
Plymouth County court cases are searchable through the Plymouth County Courthouse | Iowa Judicial Branch portal: https://www.iowacourts.gov/for-the-public/educational-resources-and-services/iowa-courts-history/iowa-county-courthouse-history/plymouth-county-courthouse. Iowa also operates a state-level case lookup through the Iowa Courts Online system. For federal matters, see PACER.
Does an arrest show up on a background check before conviction in Iowa?
Yes — in Iowa, an arrest can appear on a name-based background check from the moment of booking, even before any court ruling. Whether it appears on an employment screening depends on the type of check (name-based vs. fingerprint-based) and how recent the arrest is.
How long does an arrest stay on my record in Iowa if I wasn't convicted?
In Iowa, an arrest stays on your record indefinitely unless you petition the court to seal or expunge it, even if charges were dropped or you were found not guilty. Iowa's rules for clearing non-conviction records are stricter than for convictions — start with the Iowa Department of Public Safety.
How do I run an Iowa background check?
Iowa background checks are handled by the Iowa Department of Public Safety. Name-based searches are available through the official state portal (per-search fee applies). Fingerprint-based checks — required for licensing, foster care, and many employers — must be submitted through an approved vendor.