About Sweetwater County

Population 42,000 residents
County Seat Green River
Established 1867

Sweetwater County is located in southwestern Wyoming and stands as the largest county in the state by area, encompassing approximately 10,491 square miles of diverse terrain ranging from high desert basins to rugged mountain ranges. The county seat is Green River, with Rock Springs serving as the largest city and primary commercial center. As of recent census estimates, Sweetwater County has a population of approximately 42,000 residents.

The county was established in 1867, making it one of Wyoming's original five counties, and its rich history is deeply intertwined with the Union Pacific Railroad, coal mining, and the transcontinental railroad. Major landmarks include Flaming Gorge National Recreation Area, Killpecker Sand Dunes, Wild Horse Loop, and the historic downtown districts of both Green River and Rock Springs. The county's economy has traditionally been driven by mining (trona, coal, and natural gas), energy production, and tourism.

Public records are maintained by several county agencies headquartered primarily in Green River: the Sweetwater County Clerk's Office at 80 West Flaming Gorge Way, the Sweetwater County Recorder's Office at the same address within the County Courthouse, and the Sweetwater County Assessor's Office which handles property valuations and tax assessments. The county's unique geographic position along Interstate 80 makes it a critical transportation corridor connecting the western United States, while its vast mineral wealth continues to shape its economic and demographic character.

Sheriff, Police & Law Enforcement

Sheriff & Law Enforcement

The Sweetwater County Sheriff's Office is responsible for law enforcement in the unincorporated areas of the county. It operates the county jail, processes arrests, and maintains criminal records. The office is involved in various community programs, including drug prevention initiatives and search and rescue operations. The Sheriff's Office also collaborates with other local law enforcement agencies to ensure public safety and manage emergency situations effectively.

Police Departments

Law enforcement in Sweetwater County is provided by the Sweetwater County Sheriff's Office and municipal police departments in cities like Rock Springs and Green River. The Rock Springs Police Department and Green River Police Department handle law enforcement within their respective city limits, focusing on community policing and crime prevention. These agencies work in coordination with the Sheriff's Office on major crimes and regional law enforcement initiatives, ensuring comprehensive coverage across the county.

Law Enforcement & Arrests

Law enforcement in Sweetwater County is primarily provided by the Sweetwater County Sheriff's Office, headquartered at 80 West Flaming Gorge Way, Suite 2600, Green River, WY 82935. The Sheriff's Office can be reached at (307) 922-5346 and maintains a website at www.sweet.wy.us/sheriff. The Sheriff's Office operates the Sweetwater County Detention Center, which houses pre-trial detainees and sentenced inmates. Inmate searches and jail roster information can be accessed through the Sheriff's Office website or by calling the detention center directly at (307) 922-5445.

  • § 16-4-201 et seq.) and can be requested from the arresting agency or the Sheriff's Office.
  • Written requests should specify the individual's name and approximate date of arrest.
  • Response time for records requests typically ranges from immediate for recent bookings to several business days for archived records.
  • Fees may apply for copies and certified documents according to the county's fee schedule.

Current inmate information typically includes booking date, charges, bond amount, and projected release dates. Municipal law enforcement is provided by the Rock Springs Police Department (serving Rock Springs, the county's largest city), the Green River Police Department (serving the county seat), and smaller departments in Wamsutter and other incorporated areas. Arrest records and booking reports are considered public records under the Wyoming Public Records Act (W.S.

Mugshots and booking photos are generally available as part of arrest records, though some restrictions may apply for juvenile offenders or sealed cases. The Sheriff's Office maintains an online portal for recent bookings with photos.

Criminal, Arrest & Jail Records

Criminal Records

Sweetwater County's criminal records system includes felony, misdemeanor, and traffic records, as well as a sex offender registry. The Sweetwater County Sheriff's Office and local police departments maintain these records. Residents can conduct background checks through the Wyoming Division of Criminal Investigation, which provides statewide criminal history reports. The Wyoming Bureau of Investigation offers additional resources for accessing criminal records, ensuring residents have the necessary information for legal and personal purposes.

Arrest Records

Arrest records in Sweetwater County are maintained by the Sweetwater County Sheriff's Office. These records can be requested by residents and attorneys through formal applications, often requiring identification and a processing fee. An arrest record in Sweetwater County typically includes the individual's personal information, the charges filed, and the arresting agency. The Wyoming Public Records Act governs the accessibility of these records, ensuring transparency while protecting sensitive information.

Jail & Inmate Records

The Sweetwater County Detention Center is the primary jail facility in the county. It handles the booking process for individuals arrested within the county, where they are photographed and fingerprinted. Inmate information can be accessed online through the county's official website, which provides details on current inmates and visitation rules. Visitation is typically scheduled and requires adherence to specific guidelines. The bond and bail process follows Wyoming state law, allowing for cash bonds or bail bonds through a licensed bondsman.

Mugshots & Booking Photos

Mugshots in Sweetwater County are taken and retained by the Sweetwater County Sheriff's Office during the booking process. These images are part of the public record and can be accessed through the sheriff's official website or by request. Wyoming does not have specific mugshot removal laws, so these images remain accessible unless expunged by court order. The availability of mugshots is subject to state and local regulations regarding privacy and public access.

Courts & Case Records

The Third Judicial District Court serves Sweetwater County and is located at 80 West Flaming Gorge Way, Green River, WY 82935, with phone contact at (307) 872-3720. This court has general jurisdiction over felony criminal cases, civil matters exceeding small claims limits, domestic relations including divorce and custody, probate matters, and appeals from lower courts. The Circuit Court, also located in the courthouse, handles misdemeanor criminal cases, small claims (up to $6,000), preliminary hearings, protection orders, and certain civil matters.

  • Copy fees are typically $0.50 per page for standard documents, with certified copies costing an additional fee.
80 West Flaming Gorge Way, Green River, WY 82935 • Phone: (307) 872-3720

Justice of the Peace Courts operate in Green River and Rock Springs, handling traffic citations, minor criminal matters, and small claims within their geographic jurisdiction. Court records in Sweetwater County can be searched through the Wyoming Court System's online portal at wyomingcases.gov, which provides access to case information for both civil and criminal matters filed in District and Circuit Courts. Public access to court records is governed by Wyoming Statute § 5-2-101 and the Wyoming Public Records Act.

The online system allows searching by party name, case number, or attorney, though some sensitive records (such as juvenile cases, sealed matters, and certain family court documents) are restricted. In-person searches can be conducted at the Clerk of District Court office during regular business hours, Monday through Friday, 8:00 AM to 5:00 PM. Case file viewing is free, though copying requires payment.

The court also maintains physical archives for older cases not yet digitized.

Property & Public Records

Property and land records for Sweetwater County are maintained by the Sweetwater County Clerk's Office, which serves as the County Recorder, located at 80 West Flaming Gorge Way, Suite 2100, Green River, WY 82935, phone (307) 872-6400. The Recorder's office maintains documents including warranty deeds, quit claim deeds, mortgage instruments, satisfaction of mortgages, mechanic's liens, UCC financing statements, easements, rights-of-way, subdivision plats, and military discharge papers (DD-214s).

  • An online document search system is available through the county website at www.sweet.wy.us allowing the public to search recorded documents by name, document type, or legal description.
  • The system provides images of recorded documents dating back several decades.
  • Recording fees vary by document type, with standard deeds costing approximately $15 for the first page and $3 for each additional page.
  • Certified copies of recorded documents can be requested in person, by mail, or by phone with payment, with certification fees adding approximately $2.50 per document.

Vital Records

Vital records for Sweetwater County residents are managed through multiple offices depending on the record type. Birth and death certificates occurring in Sweetwater County can be requested from the Sweetwater County Clerk's Office at 80 West Flaming Gorge Way, Suite 2100, Green River, WY 82935, phone (307) 872-6400. The county Clerk maintains birth records and death records for events occurring within county boundaries. Certified copies of birth certificates cost $15 for the first copy and $7 for additional copies ordered at the same time. Death certificates have the same fee structure.

  • Processing time is typically same-day or next business day for walk-in requests.
  • The marriage license fee is approximately $25, and there is no waiting period or blood test required in Wyoming.
  • Online ordering of vital records is available through VitalChek for Wyoming statewide records, though additional service fees apply for this expedited service.

Applicants must provide valid photo identification and demonstrate eligibility to receive the record (immediate family member, legal representative, or person with direct interest). The Wyoming Department of Health, Vital Statistics Services, located in Cheyenne, serves as the central repository for all vital records statewide and can provide certified copies for events anywhere in Wyoming. Marriage licenses are issued by the Sweetwater County Clerk's Office, with both parties required to appear in person with valid identification.

Divorce records and dissolution decrees are maintained by the Clerk of District Court as part of court case files. Vital records in Wyoming are governed by W.S. § 35-1-401 et seq., which specifies confidentiality requirements and authorized recipients.

Business & Licensing

Business and licensing records in Sweetwater County are maintained by multiple agencies depending on the business type and registration level. The Sweetwater County Clerk's Office at 80 West Flaming Gorge Way, Suite 2100, Green River, WY 82935, handles certain local business filings and can be reached at (307) 872-6400. For comprehensive business entity searches including corporations, limited liability companies, partnerships, and trade names, the Wyoming Secretary of State Business Division maintains the official statewide database accessible online at wyobiz.wyo.gov.

  • This free searchable database allows users to look up business names, registered agents, filing dates, and current status.
  • Sales tax licenses are administered by the Wyoming Department of Revenue Excise Tax Division and can be searched through their online system.
  • The Sweetwater County Chamber of Commerce, serving both Rock Springs and Green River areas, provides business resources and networking opportunities at www.sweetwaterchamber.com.
200 West 24th Street, Cheyenne, WY 82002 • Phone: (307) 872-6400

The Secretary of State's office is located at 200 West 24th Street, Cheyenne, WY 82002, phone (307) 777-7311. Wyoming does not require general business licenses at the state level, but specific professional licenses are issued by respective boards (such as the Board of Professional Engineers, State Board of Nursing, etc.). Local business licensing requirements vary by county—the City of Rock Springs and City of Green River each maintain their own business license requirements and can provide information on local permits.

Building permits, zoning approvals, and land use permits are handled by the Sweetwater County Planning and Development Department at 80 West Flaming Gorge Way, Suite 2200, Green River, WY 82935, phone (307) 872-6420.

Elections & Voter Records

Elections in Sweetwater County are administered by the Sweetwater County Clerk's Office, which serves as the County Election Officer. The elections division is located at 80 West Flaming Gorge Way, Suite 2100, Green River, WY 82935, and can be reached at (307) 872-6400. The office maintains a webpage with election information accessible through the county website at www.sweet.wy.us.

  • Wyoming law requires voters to register at least 14 days before an election (not 30 days as in some states).
  • Registered voters can verify their registration status and find their assigned polling place through the Wyoming Secretary of State's voter lookup tool online.
  • Early voting and absentee voting are available—voters can request an absentee ballot by contacting the County Clerk's office by mail, phone, or in person.
  • Wyoming allows any registered voter to vote absentee without providing a reason.

Voter registration in Sweetwater County can be completed online through the Wyoming Secretary of State's website at sos.wyo.gov, in person at the County Clerk's office, or by mail using a Wyoming voter registration form. Sweetwater County typically operates multiple polling locations on election day in Rock Springs, Green River, and other communities, with exact locations published prior to each election. In the November 2024 general election, Sweetwater County voter turnout was approximately 62%, consistent with Wyoming's historically strong participation rates in presidential election years.

Election records that are public under Wyoming law include voter registration lists (with certain personal information redacted), campaign finance reports filed with the Secretary of State, candidate filing information, and precinct-level election results. The County Clerk publishes unofficial election results on election night and certified results following the official canvass. The next major election is scheduled for November 3, 2026, featuring U.S.

House and Senate races (Wyoming's single at-large U.S. House seat and one U.S. Senate seat), along with state constitutional offices including Governor, Secretary of State, and State Legislature positions.

Wyoming maintains transparent election processes with paper ballot systems and post-election audits, and citizens may request to observe ballot counting and canvassing processes by contacting the County Clerk's office in advance.

Economy & Demographics

Sweetwater County's economy is heavily anchored in natural resource extraction and energy production, with trona mining representing a particularly distinctive economic driver—the county sits atop the world's largest known deposit of natural trona, a sodium carbonate-bearing mineral used in glass manufacturing, detergents, and various industrial processes. Major employers include Genesis Alkali, Sisecam Wyoming, and OCI Wyoming, all operating significant trona mining and processing facilities.

Energy production, particularly natural gas extraction and coal mining, continues to play a substantial role, though the sector has experienced fluctuations in recent years. The Jim Bridger Power Plant and Naughton Power Plant are significant regional employers. According to recent economic data, Sweetwater County's median household income is estimated at approximately $72,000, notably above the national average, reflecting the higher wages associated with mining and energy sector employment.

The county's unemployment rate has historically tracked closely with commodity prices and energy demand. Beyond extraction industries, the county benefits from tourism related to Flaming Gorge National Recreation Area, which attracts anglers, boaters, and outdoor enthusiasts year-round. Retail and service sectors are concentrated in Rock Springs and Green River, serving both local populations and Interstate 80 travelers.

Economic diversification efforts have been ongoing, with the Sweetwater County Economic Development serving as the primary agency promoting business retention and attraction. The county's strategic location along I-80 has supported growth in transportation and logistics. Energy transition discussions continue to shape long-term economic planning, with renewable energy and critical mineral development representing potential future growth areas.

Transparency Score

Court Records: ✅ Online | Property: ✅ Free Search | Arrest/Jail: ✅ Online Roster | Vital Records: ⚠️ In-Person or Mail | Business: ✅ State Database Online | Elections: ✅ Online Registration & Results | Overall Score: 8/10 — Sweetwater County provides robust online access to most public records through county and state portals, with particularly strong property and court record systems.

Frequently Asked Questions

How can I search for someone recently arrested in Sweetwater County, Wyoming?
To search for someone recently arrested in Sweetwater County, you can use the Sweetwater County Detention Center's inmate lookup tool. The facility is located at 50140B US-191, Rock Springs, WY 82901. You can also contact the Sweetwater County Sheriff's Office at (307) 922-5300 for more information on recent arrests and inmate status.
Mugshots and booking photos for Sweetwater County are typically handled by the Sweetwater County Sheriff's Office. You can visit their official website or contact them directly at (307) 922-5300. Additionally, some booking photos may be available through the Wyoming Department of Corrections' online portal, depending on the case and public access policies.
To obtain a criminal background check in Sweetwater County, you should contact the Wyoming Division of Criminal Investigation (DCI). You can submit a request through their website or by visiting their office. Locally, the Sweetwater County Sheriff's Office can provide guidance on the process and any necessary forms.
You can look up sex offenders in Sweetwater County by accessing the Wyoming Sex Offender Registry. This registry is managed by the Wyoming Division of Criminal Investigation and provides a searchable online database. You can search by name, location, or view a map of registered offenders in Sweetwater County.
Voter registration in Sweetwater County is handled by the Sweetwater County Clerk's Office at (307) 872-6400. You can register online through the Wyoming Secretary of State's website at sos.wyo.gov, in person at the County Clerk's office at 80 West Flaming Gorge Way in Green River, or by mail. Wyoming law requires registration at least 14 days before an election. The County Clerk's office can also provide information on absentee ballot requests and polling locations.
Property records in Sweetwater County are maintained by the County Clerk's Office (serving as Recorder) and the County Assessor's Office, both located at 80 West Flaming Gorge Way in Green River. The county offers free online searching through www.sweet.wy.us where you can access recorded deeds, mortgages, liens, and plats through the Recorder's database, and property tax assessments, ownership information, and parcel maps through the Assessor's GIS system. For certified copies or assistance, contact the Recorder at (307) 872-6400.
Birth and death certificates for events occurring in Sweetwater County can be obtained from the Sweetwater County Clerk's Office at 80 West Flaming Gorge Way, Suite 2100, Green River, WY 82935, phone (307) 872-6400. Certified copies cost $15 for the first copy and $7 for additional copies ordered simultaneously. You must provide valid photo ID and proof of eligibility (immediate family or legal interest). Processing is typically same-day for walk-in requests, or you can order statewide Wyoming vital records through the Wyoming Department of Health Vital Statistics Services or VitalChek online with additional fees.
Business entity records for Sweetwater County businesses are searchable through the Wyoming Secretary of State's free online database at wyobiz.wyo.gov, which includes corporations, LLCs, and trade names. For local business licenses specific to Rock Springs or Green River, contact those city clerk offices directly. The Sweetwater County Clerk's Office at (307) 872-6400 can provide information on certain county-level filings. Professional licenses are maintained by individual Wyoming licensing boards through the Department of Commerce.

Cities & Towns in Sweetwater County

County Info
StateWyoming
County SeatGreen River
Population42000
Area10491 sq mi
Founded1867