Mercer County Inmate Population Overview
Mercer County inmate population data has to be read through a regional lens. The county seat is Princeton, but the main jail for a Mercer County arrest is Southern Regional Jail and Correctional Facility in Beaver, Raleigh County. West Virginia Division of Corrections and Rehabilitation records identify Southern Regional Jail as the regional jail serving Fayette, Greenbrier, Mercer, Monroe, Raleigh, Summers, and Wyoming counties. That means the facility count is not a pure Mercer County jail count. It is the best official count for the jail where most Mercer County arrestees go after the local short-term phase.
The Mercer County inmate population changes when police make arrests, a magistrate sets bond, charges are dismissed or amended, or a sentenced person moves from jail to state prison. People arrested by the Mercer County Sheriff, Princeton Police, Bluefield Police, West Virginia State Police, or another agency may first pass through a local holding point. Once a person is transferred into the regional jail system, the public lookup channel is the West Virginia Regional Jail Authority offender search. After felony sentencing, the prison side is handled through WVDCR offender search rather than the jail roster.
Mercer County Inmate Population Statistics
The clearest local population figures come from WVDCR annual reports and outside jail-population research. The FY2025 WVDCR Annual Report lists Southern Regional Jail with a rated population of 468. That same report states that the jail houses pretrial felons and misdemeanants, sentenced felons and misdemeanants, and U.S. Marshals detainees under contract. For state prison custody, the FY2025 report lists 222 prison offenders by county for Mercer County on or around June 30, 2025. Those prison offenders are not the same as current jail inmates.
| Measure | Figure | Source / Year |
|---|---|---|
| Southern Regional Jail rated population | 468 | WVDCR FY2025 Annual Report |
| Counties served by Southern Regional Jail | 7 | WVDCR FY2025 and official facility page |
| Mercer County prison offenders by county | 222 | WVDCR FY2025, around June 30, 2025 |
| West Virginia adult prison sentenced offenders total | 5,966 | WVDCR FY2025 custody by county total |
| West Virginia incarceration rate | 674 per 100,000 people | Prison Policy Initiative West Virginia profile |
Mercer County Jail Population Trends
Southern Regional Jail has been above its FY2025 rated population in several public trend points, but those figures reflect the full seven-county regional jail, not Mercer County alone. Prison Policy Initiative Census guidance listed Southern Regional Jail at 512 people in 2010 and 570 people in 2020. WVDCR report lines gathered in the research file showed 681 in FY2021, 557 in FY2022, 506 in FY2023, and 550 in FY2024. The FY2025 facility summary reported a rated population instead of an average daily population number in the captured text.
Mercer County still feels the jail count through regional jail billing. February 2026 reporting said county officials faced a January regional jail bill of $241,000 and a budgeted yearly allocation of about $1.7 million. That local cost issue does not prove how many Mercer residents were in custody on any one day, but it explains why the Mercer County inmate population is a county budget topic as well as a custody lookup topic.
| Year / Report | Southern Regional Figure | Notes |
|---|---|---|
| Census 2010 | 512 | PPI correctional-population guidance |
| Census 2020 | 570 | PPI correctional-population guidance |
| FY2021 | 681 | WVDCR annual-report trend line in research |
| FY2022 | 557 | WVDCR annual-report trend line in research |
| FY2023 | 506 | WVDCR annual-report trend line in research |
| FY2024 | 550 | WVDCR annual-report trend line in research |
| FY2025 | 468 rated population | WVDCR FY2025 facility section |
Who Counts in Mercer County Custody
Mercer County-specific jail demographics were not located in the official sources. The research instead supports a custody-type breakdown. Southern Regional Jail holds people from Mercer and six other counties, including pretrial detainees, sentenced jail inmates, and contracted federal detainees. WVDCR prison data separately counts people committed to the state prison system by county. Vera state data reported that 55 percent of West Virginia jail population was pretrial in its statewide trend data, and statewide prison offense categories in FY2025 included forcible sex offenses, homicide, drug offenses, burglary or breaking and entering, robbery, and other groups.
- Pretrial
- A person held before the criminal case is resolved, often while bond or first-appearance issues are pending.
- Sentenced jail custody
- A short sentence or jail placement that remains in the regional jail system instead of state prison.
- State prison custody
- WVDCR sentenced custody after commitment, searched through the state offender locator.
- Federal detainee
- A person held for the U.S. Marshals Service before federal sentencing or transfer.
Mercer County Jail Capacity Limits
Mercer County does not have a conventional county jail with a local bed count. Southern Regional Jail is the real capacity reference for most Mercer County jail searches, and WVDCR listed its FY2025 rated population as 468. The facility has also drawn public scrutiny. Associated Press reporting in 2023 linked Southern Regional Jail to death investigations, guilty pleas by correctional officers in the Quantez Burks case, and a class-action settlement over conditions. Those reports do not replace the jail roster, but they are relevant to any local discussion of population, staffing, and regional jail pressure.
Important: Southern Regional Jail totals should not be described as Mercer-only totals because the jail serves seven counties and also houses federal detainees by contract.
Laws for Mercer County Jail Records
West Virginia law controls much of the public-record framework behind Mercer County inmate population records. WV Code § 29B-1-1 states the public policy favoring access to government affairs and official acts. WV Code § 29B-1-3 gives a person the right to inspect or copy public records unless an exemption applies and gives the custodian up to five business days to respond. WV Code § 15A-3-16 addresses county responsibility for regional jail costs and inmate-day calculations.
Key Statutes:
WV Code § 29B-1-3 explains public-record request timing and custodian duties.
WV Code § 62-1-6A limits some law-enforcement social-media sharing of booking photographs and provides a removal route after listed case outcomes.
WV Code § 61-11-26 sets the sealing and expungement process for eligible conviction records.
Mercer County State Prison Population
State prison custody is a separate slice of the Mercer County inmate population. The West Virginia Division of Corrections and Rehabilitation offender search is the correct starting point once a person has been committed to state prison. WVDCR FY2025 data counted 222 prison offenders by county for Mercer County and 5,966 adult prison sentenced offenders statewide around June 30, 2025. No state prison is physically located in Mercer County, so facility placement can be elsewhere in West Virginia. A person may start in Southern Regional Jail, wait there during court proceedings, and later appear in the state prison locator after sentencing.
Search Mercer County Inmate Population
The main current jail search is the WV Regional Jail Authority inmate search. The portal is free and does not require a login in the public search view. It requires at least the first three letters of the last name, with first name available as an optional narrowing field. The roster carries an official warning that data updates regularly but may not reflect a true current location, release date, status, or other detail. That warning matters for same-day Mercer County arrests because local holding and transport can come before the OIS record appears.
- Open the WV Regional Jail Authority inmate search.
- Enter at least three letters of the last name.
- Add the first name when the surname is common.
- Review matches and check whether the facility is Southern Regional Jail.
- If no jail result appears, check daily incarcerations, call the jail, or contact the arresting agency.
Mercer County Roster Search Fields
The regional jail search is name-based, not a broad county-history database. A current Mercer County inmate may be listed under Southern Regional Jail after transfer from the sheriff, Princeton Police, Bluefield Police, or another arresting agency. Daily incarcerations can help when the question is whether a person was admitted recently, but the same accuracy warning applies. For a very fresh arrest, the first practical chain is local police or sheriff, then Southern Regional Jail, then OIS once regional booking has caught up.
| Field Label | Type | Required | Notes |
|---|---|---|---|
| Last Name, partial or full | Text | Yes | At least first three letters are required. |
| First Name | Text | No | Useful for common surnames. |
| Search | Button | Yes | Submitting accepts the DCR terms and disclaimer. |
| Daily incarceration filters | List or link | No | Daily page may show admissions or active inmates by institution or county. |
The manifest includes a screenshot of the Mercer County Sheriff home page, which is useful for local contact context before a person reaches regional jail custody.
The sheriff site is most relevant for local arrest and records questions, while Southern Regional Jail and WVDCR remain the main custody lookup channels after transfer.
Past Mercer County Inmate Records
Released or older Mercer County inmate records may not stay visible in the current jail roster. The research did not find an official Mercer-only archive of old jail bookings. For historical booking, incident, accident, or closed criminal investigation records, the practical route is a written request to the custodian. The Mercer Sheriff Records Division maintains department records, while Mercer County FOIA instructions tell requesters to contact the agency that holds the record and be specific about the record sought. WVDCR records go to DCR, court documents go to the proper court clerk, and police records go to the arresting police department.
FOIA does not make every record public. Juvenile records, sealed or expunged cases, medical information, security-sensitive jail data, and open-investigation material can be withheld or redacted. Court records are also different from jail records. A booking entry may show arrest or custody facts, but filed charges, amended charges, dismissed charges, pleas, and convictions must be checked through West Virginia court portals or the Mercer clerk.
Mercer County Inmate Record Fields
A regional jail record can help identify a current inmate, but it is not the final word on the criminal case. WVDCR’s public disclaimer says the information may change quickly and that sentencing information in OIS is not meant to reflect the underlying criminal action. The court file controls the legal charge history. Use the jail record for custody status, facility, and booking context, then use court search for case status.
| Field | What It Shows |
|---|---|
| Name | Search is based on last name and optional first name. |
| Current location | May show the facility, but location can change faster than the public display. |
| Custody or release status | May show current custody context, with the DCR accuracy disclaimer. |
| Booking or admission link | Daily incarcerations can show admissions by institution or county where available. |
| Charges or sentencing notes | Useful for lead information, but court records control the case. |
| Booking photo | Photos may appear when available, but a live sample was not captured in the research. |
Mercer County Jail vs Prison
The strongest lookup results come from using the correct system for the custody stage. A Mercer County arrest starts locally or at Southern Regional Jail. A sentenced state prisoner belongs in the WVDCR prison locator. A federal sentenced inmate may appear in the BOP locator, while a pre-sentence federal detainee can still be housed at Southern Regional Jail under a U.S. Marshals contract. ICE custody is checked through the ICE locator, not the county roster.
| Custody Type | Where to Look | What It Covers |
|---|---|---|
| Regional jail | WV Regional Jail Authority OIS | Pretrial, short sentence, and some federal detainees housed at Southern Regional Jail. |
| Short-term local holding | Mercer Sheriff, Princeton Police, or Bluefield Police | Very recent arrests before transfer or court appearance. |
| State prison | WVDCR offender search | Sentenced offenders committed to state custody. |
| Federal prison | BOP inmate locator | Federal inmates from 1982 to present. |
| Immigration detention | ICE detainee locator | A-number or name, country of birth, and date of birth searches. |
Federal and ICE Custody
The Federal Bureau of Prisons inmate locator covers federal inmates from 1982 to the present, but it is not the main tool for a newly arrested federal defendant. The U.S. Marshals Service explains that pre-sentenced federal prisoners are often held by contract in state, local, or private jails. Southern Regional Jail’s FY2025 description says it contractually houses U.S. Marshals detainees, so a federal Mercer County defendant may be listed locally before any later BOP placement.
The ICE Online Detainee Locator System is separate from jail and prison search. USA.gov says ICE searches can use an A-number or a name with country of birth and birth date. No ICE detention facility in Mercer County was located in the research. ICE and BOP locators are custody tools, not mugshot galleries, and federal booking photos are not published through a public county-style roster.
Mercer County Detention Facilities
The facility map for Mercer County includes one regional jail and three local short-term or police custody points. The most common long-term custody answer is Southern Regional Jail, even though it is outside Mercer County. Local holding matters for same-day searches, property questions, municipal warrants, and court appearance timing.
- Southern Regional Jail and Correctional Facility holds regional jail inmates from Mercer and six other counties, plus U.S. Marshals detainees by contract.
- Mercer County Sheriff's Department Temporary Holding Facility handles short-term sheriff custody before release, court, or transfer.
- Princeton Police Department is the municipal police contact for very recent Princeton arrests before regional jail transfer.
- Bluefield Police Department is the municipal police and court contact for Bluefield arrests, bench warrants, and city court matters.
Mercer County VINE Notifications
West Virginia VINE gives custody-status and notification options outside the ordinary roster search. WVDCR FY2025 reporting says victims can register by phone, email, TTY, SMR text, and the VINE app, and that there were 6,696 new VINE registrations and 24,730 VINE notifications in FY2025. VINE should be used as a notification tool, not as a substitute for a court clerk, jail records office, or emergency call.
Mercer County Inmate FAQ
How big is the Mercer County inmate population?
There is no single official county jail daily count in the research because Mercer County has no full county jail. WVDCR FY2025 data lists Southern Regional Jail with a rated population of 468, and that jail serves seven counties. WVDCR also counted 222 Mercer County prison offenders by county around June 30, 2025.
Where do Mercer County inmates go after arrest?
Many people pass through sheriff or municipal short-term holding first, then transfer to Southern Regional Jail in Beaver for regional jail custody. The regional jail is outside Mercer County, but it is the primary facility for Mercer County jail searches.
Can a new arrest be missing from the roster?
Yes. OIS says records update regularly but can change quickly and may not show true current location or status. If the arrest just happened, call the arresting agency or Southern Regional Jail before assuming no custody exists.
Does the roster show final charges?
No. The roster can show custody and charge-related notes, but WVDCR warns sentencing information is not the underlying criminal action. Use MCRSearch, WVPASS, and the Mercer court clerks for court records after a jail arrest.