Marion County Inmate Population
The Marion County inmate population is centered at the Marion County Jail / Marion County Law Enforcement Center in Knoxville. That facility is run by the Marion County Sheriff's Office and holds people arrested by sheriff's deputies, Knoxville police, Pella police, Pleasantville police, Melcher-Dallas police, and other local agencies when county custody applies. The same jail also holds people who are waiting for an initial appearance, bond review, transfer, or local sentence service. A person who is later committed to prison is no longer part of the county jail population in the same way, even if the case began in Marion County.
Population counts move for plain reasons. New arrests raise the jail count. Bond orders, releases, dismissals, and transfers lower it. A person may also move from the jail roster to the Iowa Department of Corrections Offender Search after a state prison commitment. Federal sentenced people are searched through the BOP Inmate Locator, while immigration detention is searched through ICE ODLS. Those systems do not replace the Marion County roster; they cover different custody stages.
Marion County Inmate Population Statistics
Marion County publishes a Sheriff's Office Metrics dashboard, but the static research did not expose a current daily jail count from that PowerBI report. The stable figures below come from the Vera Institute Incarceration Trends county dataset and should be read as historical jail statistics, not a current bed-count statement from the county. For a live local view, the sheriff's Sheriff's Office Metrics page is the county source to check.
| Measure | Figure | Source / Year |
|---|---|---|
| County jail total population | 35 | Vera Incarceration Trends county CSV, 2019 |
| Rated jail capacity | 56 | Vera Incarceration Trends county CSV, 2019 |
| Annual jail admits | 307.5 | Vera Incarceration Trends county CSV, 2019 |
| County jail population rate | 168.16 per 100,000 age 15-64 | Vera Incarceration Trends county CSV, 2019 |
| Total incarceration rate | 706.29 per 100,000 age 15-64 | Vera Incarceration Trends county CSV, 2019 |
Marion County Inmate Population Trends
The Vera trend rows show Marion County jail counts rising from the low 20s in 2010 and 2011 into the mid-30s and 40s by 2015 through 2019. The high point in the listed decade was 45 people in 2016 against a rated capacity of 50. The 2019 row shows 35 people against a capacity of 56, which is about 62.5 percent occupied using those fields. These rows are useful for scale, but they should not be treated as today's count because the sheriff's PowerBI metrics can change as bookings, releases, and transfers occur.
| Year | Total Jail Population | Rated Capacity | Pretrial | Sentenced |
|---|---|---|---|---|
| 2019 | 35 | 56 | 19 | 16 |
| 2018 | 35 | 50 | 29 | 6 |
| 2017 | 42 | 56 | 6 | 36 |
| 2016 | 45 | 50 | 2 | 43 |
| 2015 | 39 | 50 | 32 | 7 |
| 2010 | 21 | 35.38 | 8.17 | 12.83 |
The county announced its "Who's in Jail" and "Sheriff's Office Metrics" web apps in 2022, after the Vera rows listed here. That matters because Marion County now presents jail information through a local PowerBI dashboard instead of only static reports. Use historical tables for trend context and the dashboard for current checks.
Who Makes Up Marion County Jail Population
The 2019 Vera row gives the best located demographic snapshot for the Marion County inmate population. It counted 35 people in the county jail, including 19 in pretrial custody and 16 in sentenced custody. The sex fields listed 19 male jail population and 9 female jail population. Race and ethnicity fields listed 22 White, 3 Black, 2 Latinx, 1 AAPI, 0 Native, and 0 other race jail population. Those figures are historical dataset fields and do not cover a current day's roster.
- Pretrial custody: 19 people were listed in the 2019 Vera row, meaning the case had not reached final disposition.
- Sentenced jail custody: 16 people were listed as serving local jail sentences in the same row.
- Other jail transfers: Vera listed 13 people from another jail field in 2019, while the listed federal, prison, BOP, ICE, and Marshals fields were 0.
- State prison contrast: Iowa DOC daily statistics are statewide prison figures, not Marion County jail roster figures.
Marion County Jail Capacity
Marion County's official jail pages did not publish a current static rated bed count during research. The most useful historical capacity fields came from Vera: 56 beds in 2019, 50 in 2018, 56 in 2017, 50 in 2016, and 50 in 2015. No official local news item, consent decree, DOJ investigation, jail construction plan, or recent death-in-custody report tied to Marion County, Iowa was located in the research file. Search results for other Marion counties in other states should not be used for this Iowa county.
For statewide context, the Iowa DOC Daily Statistics page inspected for June 12, 2026 listed 8,937 institutional prisoners against capacity of 6,990, with statewide institutional overcrowding of 27.85 percent. That number is not part of the Marion County jail count. It explains why a sentenced person from Marion County may later appear in a state prison data system that has its own population pressure, rules, and locator.
Laws for Marion County Inmate Population
Iowa law shapes how Marion County jail data is held, requested, and supervised. Iowa's open-records law is the base rule for many jail, booking, and public-record requests. Jail operation and custody duties are handled under separate jail statutes and DOC jail standards. A person searching the Marion County inmate population should know that public access does not mean every detail is online or releasable. Juvenile records, sealed records, ongoing investigations, victim details, and safety-sensitive information can be withheld or redacted.
Key Statutes:
Iowa Code Chapter 22 governs examination and copying of public records unless a confidentiality rule applies.
Iowa Code Chapter 356 governs jails and says the sheriff has charge and custody of county jail prisoners.
Iowa Administrative Code 201 Chapter 50 contains jail facility standards and the DOC jail-inspection framework.
Iowa Code 331.802 covers public-interest death reporting and investigation, including deaths in custody through linked rules and guidance.
Marion County State Prison Population
No Iowa DOC prison is physically located in Marion County. Once a person is sentenced to Iowa prison custody or moves into DOC supervision, the search path changes from the Marion County jail roster to the statewide DOC locator. The DOC search lets users filter by name, offender number, sex, location, offense, and county of commitment, including Marion County. DOC states that offender records are public under Iowa Code 904.601 and that information is updated weekly but can change quickly.
The state prison population should not be blended into the local Marion County inmate population. A local arrest can start at the Law Enforcement Center, produce a court docket in Marion County District Court, and later result in a DOC record after commitment. That is a custody path, not one continuous roster. VINELink Iowa can help with custody notification, but it is a notification service rather than the official county roster or DOC search database.
Search Marion County Inmate Population
The official current-custody starting point is the sheriff's Who's in Jail? page. It embeds a public PowerBI Government report titled "Recent Arrests." Marion County's 2022 announcement says the web apps show recent arrests, active inmates, charges, incidents, citations, and other jail information. The static page did not expose exact filter labels, so the safe search method is to let the report load and use the visible PowerBI controls without assuming a specific field name.
The county roster is for jail and arrest custody. It is not the formal court charge record, not a full criminal-history report, and not the state prison locator. When a person does not appear, the next step depends on the facts: a very recent arrest may require a jail phone call, a sentenced prison transfer may require the Iowa DOC locator, and a federal or immigration case may require BOP or ICE.
- Open the sheriff's "Who's in Jail?" page and allow the embedded PowerBI report to load.
- Use the visible PowerBI filters, tabs, and search controls to look for the person's name or recent-arrest entry.
- Read the result as a jail custody or recent-arrest record, not as proof of guilt or a complete charge history.
- If the person is not listed after a recent arrest, call the jail at (641) 828-2245 or dispatch at (641) 828-2220.
- If the case may have moved beyond the jail, check Iowa DOC, BOP, ICE, Iowa Courts Online, or VINELink based on the custody type.
Current Marion County Inmate Lookup
The PowerBI roster is unusual for a smaller rural Iowa county because it is a dashboard embedded in the county website instead of a conventional jail-vendor roster page. The county news release announced the jail roster and sheriff metrics apps together, which makes the dashboard part of the local records workflow. The roster can be blocked or delayed by browser settings, slow connections, or PowerBI loading issues, so phone and public-records fallbacks remain important.
The screenshot captured from the official Marion County Who's in Jail page shows the county's jail roster access point inside the sheriff section.
That local page is the right place to begin a Marion County jail roster lookup before using state or federal systems.
| Roster Access Point | Type | Required | Notes |
|---|---|---|---|
| PowerBI interactive filters | Report controls | Unspecified | Static HTML exposed the iframe title, not exact filter labels. |
| Recent arrests / active inmates | Report content | Unspecified | County announcement says the app shows both categories. |
| Charges / incidents / citations / jail info | Metrics content | Unspecified | County announcement links these categories to the sheriff metrics tools. |
Past Marion County Inmate Records
A released person may or may not remain visible in the sheriff's PowerBI report. The official snippet for the "Who's in Jail?" page says people who are in jail or released from jail do not necessarily prove guilt or innocence, but the research did not locate a fixed retention period. For older booking records, missing mugshots, incident reports, or records not visible in the dashboard, use the Marion County Information Requests form.
The county form is tied to Iowa Code Chapter 22. It asks for request date and time, name, email, phone if provided, organization name, organization type, and a text description of the information requested. Marion County says phone requests may be made at 641-205-3721, though it encourages the online form. It also says some requests may require fees, and within 10 business days the county will provide notice of acceptance, estimated delivery, and whether prepayment is required.
Marion County Inmate Record Fields
The exact Marion County PowerBI field list was not fully exposed in static research. The county announcement supports recent arrests, active inmates, charges, incidents, citations, and jail information. The official search snippet warns that an arrest record on the site may not contain a complete history of charges from Marion County or other jurisdictions and directs users to the Clerk of Court for a copy of the actual charge.
| Field or Topic | What the Research Supports |
|---|---|
| Current or recent custody | The roster is announced for recent arrests and active inmates. |
| Charges | Charges are part of the announced sheriff metrics, but actual charge copies route to the Clerk of Court. |
| Booking photo | Not confirmed from static inspection; request through public records if not shown. |
| Release status | The official snippet references people in jail or released from jail, but exact status labels were not captured. |
| Full criminal history | Not provided by the roster; use courts, DOC, or proper background-check channels. |
Marion County Jail vs State Prison
Readers often search one system for every inmate record, but Marion County custody is split by legal status. The county jail roster covers local jail custody, including pretrial detainees, recent arrests, short local sentences, and people waiting for bond or transfer. Iowa DOC covers state sentenced offenders and community corrections. BOP covers federal sentenced custody from 1982 to present. ICE ODLS covers immigration detention when ICE has searchable custody information.
| System | Who It Covers | Where to Search |
|---|---|---|
| County jail | Recent arrests, active local inmates, pretrial and short local sentences | Marion County "Who's in Jail?" PowerBI page |
| Iowa DOC | State sentenced offenders and DOC-supervised records | Iowa DOC Offender Search |
| Federal BOP | Federal sentenced inmates from 1982 to present | BOP Inmate Locator |
| ICE | Immigration detainees searchable by A-number or biographical details | ICE Online Detainee Locator System |
Marion County DOC and Federal Search
The Iowa DOC Offender Search is the right statewide tool once a Marion County case results in a state prison commitment or DOC supervision. Its search fields include first, middle, and last name, offender number, sex, location, offense, county of commitment, and name-match mode. County of commitment includes Marion, which helps when a person was sentenced from Marion County but housed elsewhere in Iowa.
The BOP locator uses number search options such as BOP Register Number, DCDC Number, FBI Number, and INS Number, or a name search with first and last name. ICE ODLS uses A-number plus country of birth or a name, country of birth, and birth date search. No BOP prison, ICE detention center, or dedicated federal detention facility was located in Marion County through official channels.
Marion County Detention Facility
The facility map resolves to one Marion County detention facility. Municipal police agencies in Knoxville, Pella, Pleasantville, and Melcher-Dallas may make arrests, but the research did not locate separate city jail roster pages for them. Arrestees generally route through the Marion County Sheriff's Office and the county jail access channels unless a court or arresting agency gives a different custody location.
- Marion County Jail / Marion County Law Enforcement Center - county jail for pretrial detainees, local sentences, recent arrests, bond holds, and accepted agency holds.
Marion County Inmate Population FAQ
How big is the Marion County inmate population?
The latest historical county jail figure in the research is Vera's 2019 row, which listed 35 people and rated capacity of 56. Marion County also has a Sheriff's Office Metrics PowerBI page for current local jail information, but a current daily count was not exposed in static research.
How do I search the Marion County inmate population?
Start with the sheriff's "Who's in Jail?" PowerBI page. If the report does not load, the arrest is very recent, or the person is no longer in county custody, use the jail phone, public-records request form, Iowa DOC, BOP, ICE, Iowa Courts Online, or VINELink as the facts require.
Are Marion County jail records the same as court records?
No. Jail records show custody and arrest information. Court records show formal charges, docket events, bond orders, warrants, dispositions, and case documents. The official roster snippet directs people to the Clerk of Court for copies of actual charges.
Does Marion County have a state prison?
No Iowa DOC prison was located in Marion County. State-sentenced prisoners from Marion County are searched through the statewide DOC locator, not the county jail roster.