Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest and crime counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. Every office link was opened and checked against the office's own site between September 24, 2026 and October 4, 2026.
Delaware County, Iowa, has about 18,000 residents (2024 Census Bureau estimate). In Iowa the public criminal record is the court file, kept by the Clerk of the District Court; the statewide criminal history kept by the Iowa Division of Criminal Investigation is open to anyone who asks. This guide says where each record of a criminal case from Delaware County is kept and how it is seen.
This guide covers the court file, the statewide record, local arrest records, the crimes behind the records, the prosecutor, sex offender registry, records requests and common questions.
Related guides: Delaware County public records, Delaware County arrest records, Delaware County warrants, Delaware County inmate search, Delaware County court records, Iowa arrest records and Iowa inmate search.
Criminal Cases in the Iowa District Court for Delaware County
A criminal case from Delaware County is filed in the Iowa District Court for Delaware County, and the court file, kept by the Clerk of the District Court, is the record of it that the public may see.
The court records page SearchSystems verified for the county is at iowacourts.gov/iowa-courts/district-court/judicial-district-1/distr... (page title: Delaware | Judicial District 1 | Iowa Judicial Branch), phone 563-927-4942, 301 East Main Street Manchester, IA 52057, which answered when SearchSystems opened it on September 24, 2026.
Statewide, Iowa Courts Online is the Iowa Judicial Branch's free statewide case search.
The Iowa Criminal History and Your Own Copy
Iowa is one of the states that lets anyone look up another person's statewide criminal history: anyone can request a name-based criminal history check online, through the Iowa Division of Criminal Investigation. The result is the repository record, what agencies reported to the state, which is wider than one county's court index but can lag it.
Arrest Records Kept Locally in Delaware County
The Delaware County Sheriff's Office and the agency that reports for Manchester keep the arrest records in Delaware County: the report and the booking record of each arrest stay with the agency that made it, separate from the court file and from the state repository.
The Dyersville Police Department is listed by the FBI across two counties including Delaware County, so its arrests are not broken out for Delaware County here.
Together, the two agencies in Delaware County with all twelve months of 2025 on file reported 352 arrests to the FBI that year; how each case ended is in the court file, not in the arresting agency's.
The agencies and their counts, year by year, are in Delaware County arrest records.
The Crimes Behind the Records: Delaware County in 2024
The two agencies in Delaware County with all twelve months of 2024 on file reported 26 violent and 69 property crimes to the FBI that year; the same agencies with both 2024 and 2023 complete reported 95 crimes in 2024 against 186 in 2023. Each reported crime is a report on file with the agency that took it, and each arrest that follows is the start of a criminal record.
The full crime section, agency by agency, is on the Delaware County public records guide.
The County Attorney for Delaware County
Charges in Delaware County are filed by the County Attorney, which reviews the arrests of every agency in the county and brings the cases in the Iowa District Court for Delaware County.
The office's page SearchSystems verified is at delawarecounty.iowa.gov/attorney (page title: Delaware County Iowa | Attorney), phone (563) 927-3819, 301 E Main Street Manchester, IA 52057, Monday - Friday 8:00 am - 4:30 pm, which answered when SearchSystems opened it on September 30, 2026.
The Sex Offender Registry for Delaware County
Registered sex offenders living in Delaware County are listed on the Iowa Sex Offender Registry, run by the Iowa Department of Public Safety at iowasexoffender.gov. The registry is public and can be searched online; the county sheriff registers them.
Registration itself is done in person with the local agency where the registrant lives: the sheriff's office, or the city police in a city with its own department.
Asking an Agency in Delaware County for a Record
An arrest report, a booking record or a local criminal history letter comes from the agency that holds it, not from the court.
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.
Frequently Asked Questions
Are criminal records public in Delaware County?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Iowa Division of Criminal Investigation: anyone can request a name-based criminal history check online. The arrest report itself is released by the agency that made the arrest, under the Iowa Open Records Law (Chapter 22).
Can I search Delaware County criminal cases online?
The court records page SearchSystems verified for the county is at iowacourts.gov (page title: Delaware | Judicial District 1 | Iowa Judicial Branch). Statewide, Iowa Courts Online is the Iowa Judicial Branch's free statewide case search.
How do I get my own Iowa criminal history?
Through the same record check, run on yourself.
Who prosecutes crimes in Delaware County?
The County Attorney, reached at (563) 927-3819, which files its cases in the Iowa District Court for Delaware County.
Is this the official Delaware 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.