Benton County Jail Mail must include the inmate’s full legal name exactly as it appears on the official roster, followed by their housing unit if known. The correct mailing format is: [Inmate Name] – [Unit], Benton County Jail, 7122 W. Okanogan Place, #B110, Kennewick, WA 99336. Always include your full name, street address, and phone number on the envelope. Handwritten letters are preferred over printed forms, which must have a handwritten signature to be accepted. Mail is screened Monday through Friday from 8:00 a.m. to 4:30 p.m. Items missing a valid name or unit will be returned. Only letters, postcards, and sealed photos are allowed. Packages, electronics, adhesives, staples, paper clips, or any non-paper items are rejected. Email is not accepted through regular mail; electronic messages must use the state-approved JPay system at a cost of $0.25 per message.

How to Properly Address Mail to Benton County Jail Inmates
Proper addressing ensures your mail reaches the intended inmate without delays. Start with the inmate’s full legal name—do not use nicknames or shortened versions. If you know the housing unit (such as “Pod A” or “Unit 3”), include it after the name, separated by a dash. Write clearly in dark ink. Use standard U.S. Postal Service formatting with the jail’s official address: Benton County Jail, 7122 W. Okanogan Place, #B110, Kennewick, WA 99336. On the return address section, provide your full name, complete street address, city, state, ZIP code, and a working phone number. This helps jail staff contact you if there’s an issue. Mail without sender information may be discarded. Avoid decorative envelopes, stickers, or glitter, as these can trigger rejection.
Accepted and Rejected Mail Items at Benton County Jail
Only specific items are permitted in inmate mail. Accepted materials include plain white or colored paper letters, standard postcards (no larger than 5×7 inches), and sealed photographs (no Polaroids or instant prints). Photos must not show nudity, weapons, or gang symbols. All mail is opened and inspected for contraband. Rejected items include packages, books, magazines, newspapers, greeting cards with glitter or pop-ups, laminated items, stickers, tape, glue, staples, paper clips, or anything with metal parts. Electronics like USB drives, CDs, or memory cards are strictly prohibited. Sending unauthorized items can result in disciplinary action against the inmate and may limit future mail privileges. Always check the latest rules before sending.
Mail Screening Process and Security Procedures
All incoming mail is processed during business hours—Monday through Friday, 8:00 a.m. to 4:30 p.m.—excluding federal holidays. Staff inspect each piece for hidden contraband, including drugs, weapons, or coded messages. They use visual checks and may employ chemical detection tools if suspicious substances are suspected. Mail that fails inspection is documented and returned to the sender with a reason. Inmates receive copies of approved letters and postcards. Photos are scanned and returned to the sender within 10 business days unless flagged for review. Staff do not read personal content but may redact sections that violate security policies. Mail containing threats, escape plans, or illegal activity is reported to law enforcement.
Electronic Messaging via JPay: Costs and Instructions
Benton County Jail does not accept email through regular postal mail. Instead, use the state-approved JPay system for electronic communication. Messages cost $0.25 each and can be sent online or via the JPay mobile app. Create an account at jpay.com, add the inmate using their full name and booking number, then compose and send messages. Delivery typically occurs within 24 hours. JPay messages are subject to the same content rules as physical mail. Attachments like photos or documents may incur extra fees. Funds for JPay must be added via credit card, debit card, or money order. Inmates can reply using kiosks in their housing units. JPay also allows money transfers to inmate commissary accounts.
Facility Overview: Size, Capacity, and Operations
The Benton County Jail is a 100,355-square-foot facility located on a 16.8-acre campus in Kennewick, Washington. It houses up to 669 adult male and female inmates across multiple housing pods. The administrative wing spans 16,938 square feet and includes intake processing, records management, and visitor services. Built with $16.8 million in county and state funding, the jail features 24-hour video surveillance, a licensed RN-staffed medical clinic, and secure visitation areas. The design supports classification by risk level, gender, and medical needs. Real-time inmate data is maintained in a centralized database accessible to authorized personnel. The facility operates under Washington State Department of Corrections standards.

How to Find an Inmate’s Current Status and Housing Unit
Use the official Benton County Jail Custody List to verify an inmate’s status. Visit the online portal and search by first name, last name, or booking number. Results show the inmate’s full name, date of birth, booking date, charges, bond amount, and assigned housing unit. The list updates in real time and includes a toggle for recently released individuals. If you cannot access the website, call (509) 783-1451 during business hours (7:00 a.m. to 5:00 p.m.). Staff will confirm basic details after verifying your identity. Knowing the housing unit helps ensure your mail is delivered quickly. Incorrect or missing unit information may delay delivery or cause return to sender.
Requesting Mugshots or Official Roster Information
To obtain a mugshot or official roster copy, send a written request to: Benton County Jail, 7122 W. Okanogan Place, #B110, Kennewick, WA 99336. Clearly mark the envelope “Attention: Media Relations – Inmate Mugshot Request.” Include the inmate’s full name, booking number (if known), and your contact information. Requests are processed within 5 to 10 business days. Alternatively, call (509) 783-1451 during office hours. Some third-party sites like Jail Exchange mirror the official roster but may charge fees. Always verify information through the county’s official channels to ensure accuracy. Mugshots are provided for identification purposes only and may not be used for commercial gain.
Visitation Rules, Dress Code, and Scheduling
Visitors must follow strict guidelines. Appointments are required and can be scheduled online or by calling the jail. Arrive 15 minutes early for processing. Valid photo ID is mandatory. The dress code prohibits sleeveless shirts, hats, open-toed shoes, shorts above the knee, or revealing clothing. Minors must be accompanied by a parent or legal guardian. Visits occur in secure glass-enclosed booths with telephone communication. Each inmate is allowed one 30-minute visit per week. Late arrivals may forfeit their slot. Food, gifts, or physical contact are not permitted. Violations can result in suspension of visitation rights. Check the official website for holiday schedules and special rules.
Prohibited Items and Contraband Prevention Measures
Jail staff actively prevent contraband entry through mail and visits. Common banned items include drugs, weapons, cell phones, SIM cards, batteries, lighters, and any electronic devices. Mail is checked for hidden substances, such as drug-soaked paper or ink. In 2023, Colorado jails reported over 200 incidents of narcotics concealed in envelopes, prompting increased scanning. Benton County uses similar detection methods, including chemical swabs and X-ray machines. Sending contraband is a felony punishable by fines or imprisonment. Inmates caught with unauthorized items face disciplinary hearings and loss of privileges. Families should avoid sending anything beyond approved letters, postcards, and sealed photos.
Contact Information and Official Resources
For mail-related questions, contact the Benton County Jail at (509) 783-1451 during business hours (7:00 a.m. to 5:00 p.m., Monday–Friday). The physical address is 7122 W. Okanogan Place, #B110, Kennewick, WA 99336. Emergency calls should go to 911. The official inmate roster is available online through the county’s custody list portal. For JPay messaging or money transfers, visit jpay.com. Media inquiries should be directed to the Sheriff’s Office Public Information Officer. Always use verified sources—avoid unofficial websites that may provide outdated or incorrect information. Bookmark the official Benton County Sheriff’s Office site for updates on policies, holidays, and system outages.
Frequently Asked Questions About Benton County Jail Mail
Many people have questions about sending mail to inmates at Benton County Jail. Below are answers to the most common concerns. These responses are based on current jail policies, state regulations, and direct communication with facility staff. Always double-check rules before sending mail, as policies may change. If you don’t find your answer here, call the jail directly at (509) 783-1451 during business hours. Staff are trained to assist families and friends with mail procedures. Remember, clear communication helps keep your loved one connected while supporting jail security.
Can I send photos to an inmate at Benton County Jail?
Yes, you can send sealed photographs, but only if they meet specific guidelines. Photos must be standard size (no larger than 5×7 inches), printed on photo paper, and placed in a sealed envelope. Polaroids, instant prints, and digital prints on regular paper are not accepted. Do not send nude, violent, or gang-related images. All photos are inspected and may be held for up to 10 days before delivery. If approved, the inmate receives a scanned copy, and the original is returned to you. Sending inappropriate photos can result in mail rejection or disciplinary action. Always write the inmate’s full name and unit on the photo envelope. Avoid including personal notes on the back of photos, as this may delay processing.
What happens if my mail is rejected by the jail?
If your mail is rejected, it will be returned to you with a written explanation. Common reasons include missing sender information, incorrect inmate name or unit, prohibited items like staples or glitter, or suspicion of contraband. The return envelope will list the specific violation. You can correct the issue and resend the mail following the proper format. Repeated violations may lead to temporary mail restrictions for the sender. Keep copies of your letters and tracking numbers when possible. If you believe your mail was wrongly rejected, call the jail at (509) 783-1451 to speak with mailroom staff. They can clarify the reason and guide you on resubmission. Never argue with correctional officers—follow their instructions to maintain good standing.
How long does it take for mail to reach an inmate?
Mail typically arrives within 2 to 5 business days after being posted, depending on postal service speed. Once received, it is processed during the next business day between 8:00 a.m. and 4:30 p.m. Processing includes inspection, logging, and delivery to the housing unit. Inmates usually receive mail the same day it’s cleared. Holidays and weekends delay processing. If the inmate has just been booked or transferred, mail may take longer due to roster updates. Use the online custody list to confirm their current status and unit. For urgent messages, consider using JPay, which delivers within 24 hours. Avoid sending time-sensitive items via regular mail unless absolutely necessary.
Can I send money to an inmate through the mail?
No, you cannot send cash, checks, or money orders through regular mail. The only approved method is through JPay. Visit jpay.com, create an account, and add funds using a credit or debit card. You can also send money orders to JPay’s processing center in Florida. The funds are deposited into the inmate’s commissary account within 24 to 48 hours. The inmate can then use the balance to buy snacks, hygiene items, or phone time. Do not include money in letters or envelopes—this will result in rejection. If you prefer not to use JPay, some jails accept cashier’s checks dropped off in person, but Benton County does not offer this option. Always verify payment methods on the official website.
Are there limits on how much mail an inmate can receive?
Benton County Jail does not impose a strict limit on the number of letters or postcards an inmate can receive. However, staff may restrict excessive mail if it interferes with operations or poses a security risk. Inmates are allowed to keep a reasonable amount of correspondence in their cells. Extra letters may be stored in their property locker. If an inmate receives large volumes of mail, staff may inspect each piece more thoroughly, causing delays. Sending multiple letters per week is generally acceptable. Avoid sending bulk mailings or form letters without personal content. Handwritten, thoughtful messages are encouraged. If you plan to send many letters, inform the inmate in advance so they can manage their storage space.
What should I do if I don’t know the inmate’s housing unit?
If you don’t know the housing unit, send the mail without it. Write the inmate’s full legal name, followed by “Benton County Jail,” then the full address. Staff will attempt to locate the inmate using the roster. However, including the unit speeds up delivery. To find the unit, use the online custody list or call (509) 783-1451. Ask a friend or family member who has visited recently. Some inmates share their unit number during phone calls. If the mail is returned due to an unknown unit, contact the jail for assistance. Never guess the unit—incorrect information can cause delays. Once you have the correct details, resend the mail with the full address format.
Is it safe to send personal information in inmate mail?
All inmate mail is opened and inspected, so avoid sending sensitive personal information. Do not include Social Security numbers, bank details, home addresses (beyond the return address), or private family matters. Staff may redact or remove such content. Use general terms when discussing personal topics. Remember that mail is not private—other inmates or staff may see parts of it. For confidential communication, use attorney-client privileged mail, which is handled separately. If you must share private details, consider discussing them during a visit or phone call. Always prioritize safety and security when writing to an incarcerated person. Keep messages supportive, clear, and free of risky content.
Official Contact Details and Resources
For the most accurate and up-to-date information, always refer to official sources. The Benton County Jail mailing address is: 7122 W. Okanogan Place, #B110, Kennewick, WA 99336. Phone: (509) 783-1451 (business hours only). Emergency line: 911. Visiting hours are by appointment only—schedule online or call ahead. The official inmate roster is available at the county’s custody list portal. JPay messaging and money transfers are handled exclusively through jpay.com. Media requests go to the Sheriff’s Office Public Information Officer. Bookmark these resources and check them regularly for policy updates. Avoid third-party sites that charge fees for basic information. Stay informed, stay compliant, and keep communication strong.
