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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

Plymouth County Records at a Glance

Record typePlymouth County verified sources
Court recordsIowa Courts Online Search - Select Action
Plymouth County Courthouse | Iowa Judicial Branch
Criminal recordsNo verified source — see Plymouth County state portal below
Wants & warrantsNo verified source — see Plymouth County state portal below
Property recordsCounty Homepage
Plymouth County Assessor
Vital recordsVital Records - Plymouth County Iowa
Recorder - Plymouth County Iowa
Voter recordsVoting - Plymouth County Iowa
Primary Election Absentee Voting Information - Plymouth Coun…
Professional licensesFind a Record or License | Department of Inspections, Appeal…
Recorded documentsNo verified source — see Plymouth County state portal below
Plymouth County — Verified Record Sources by Type (2026)
Court records2Criminal records0Wants & warrants0Property records4Vital records2Voter records2Licenses1Recorded docs0
Count of officially verified .gov / .us record sources cataloged for Plymouth County. Data verified June 04, 2026.

What Changed in 2026 — Plymouth County Records

2026
Plymouth County official government portal active
The official Plymouth County government website at plymouthcountyiowa.gov continues to serve as the canonical local source.
2026
Plymouth County court records portal verified
State court system links for Plymouth County verified against the Iowa judiciary portal in 2026.
2026
Plymouth County property records online
Plymouth County property assessment and recorder office online portal active in 2026.
2026
FBI Identity History Summary (federal complement)
For records that may exist outside Iowa, the FBI Identity History Summary at fbi.gov complements all county-level state records.

The 4-Step Plymouth County Records Pathway

1
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."
✓ Truth: False. Criminal 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."
✓ Truth: False. Sealing 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."
✓ Truth: False. Only 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."
✓ Truth: False. The 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."
✓ Truth: Partially 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).

Primary Sources (All Verified)

Related — Plymouth County & Iowa Records

For records not specific to Plymouth County, use Iowa's statewide system or the national hub.
📍 Iowa statewide record systems:
🇺🇸 National hubs:
Related Public Records
Other counties in Iowa: Page · Palo Alto · Pocahontas · Polk · Pottawattamie

About Plymouth County, Iowa

Plymouth County is located in northwest Iowa. The county seat is Le Mars (official site: https://plymouthcountyiowa.gov/).

  • Population: 25,825
  • Households: 10,214
  • Median household income: $79,963
  • Median home value: $199,800
  • Below poverty line: 5.7%
  • Land area: 862.8 sq mi
  • Population density: 29.9 people / sq mi
  • Public libraries indexed: 5
  • NCES schools indexed: 17
PR
County Homepage
Official Free
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.
PR
Plymouth County Assessor
Official Free
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.
PR
Commercial Sales Search
Official Free
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 ...
PR
Buchanan County Treasurer | Iowa Tax And Tags
Official Free
Property Taxes and Vehicle Registration Monday - Friday 8:00 AM - 4:30 PM Call (319) 334-7456 to schedule an appointment. Any changes in hours will be posted on the Buchanan Treasurer's homepage. Buchanan County Treasurer's Office 210 5th Ave.
CT
Iowa Courts Online Search - Select Action
Official Free
Iowa Courts Online Search - Select Action · This page uses frames, but your browser doesn't support them
CT
Plymouth County Courthouse | Iowa Judicial Branch
Official Free
The county's population grew and so another courthouse was needed. This building, which serves as the present courthouse, was completed in 1902. Today its red sandstone exterior remains nearly as it was when first built, except that a large cupola was removed. Plymouth has plans for a new courthouse to be completed in 1998. © 2026 Iowa Judicial Branch...
VR
Vital Records - Plymouth County Iowa
Official Free
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 ...
VR
Recorder - Plymouth County Iowa
Official Free
To serve as the county's registrar of vital records (birth, death and marriage).
VR
APPLICATION FOR A SEARCH FOR AN IOWA VITAL RECORD
Official Free
This application is for a SEARCH for an Iowa birth, death or marriage record .
VT
Voting - Plymouth County Iowa
Official Free
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 ...
VT
Primary Election Absentee Voting Information - Plymouth County Iowa
Official Free
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.
VT
Iowa Voter Info | U.S. Election Assistance Commission
Official Free
Iowa State Election Office Website Register to Vote @media (max-width:47.938em) { .respTbl ta
🌐 eac.gov
LC
Find a Record or License | Department of Inspections, Appeals, & Licensing
Official Free
Search State of Iowa online services to verify professional licensure, and search inspection and survey records.
LC
Iowa License Lookup
Official Free
PACER systems will undergo maintenance on Sunday, May 10, 2026, from 5:00 a.m. to 4:00 p.m. ET . As a result, certain portions of this site may be temporarily degraded during the maintenance window. Log in to the federal Judiciary’s electronic public access services.
RD
Plymouth County Recorder | Iowa Land Records
Official Free
Why Iowa Land Records Matters · Celebrating Two Decades of Digital Access · Fraudulent Activity From “County Deeds” Reappear · Joan McCalmant – ISAC Golden Eagle Award · SCAM ALERT – Home Warranty Letter · September 2025 · January 2025 · February 2024 ·
BZ
Plymouth County Government
Business, Voter & Other

Plymouth County, Iowa government portal.

co.plymouth.ia.us

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.