Personal mail for Harris County Jail in Houston, including photos, now goes to a digital mail center in Tampa, Florida, not to the jail downtown. Address it to the person's name and SPN, Harris County Jail, P.O. Box 21267, Tampa, FL 33622; your photos are scanned and your loved one views them on a jail tablet or kiosk.
That change took effect on June 16, 2025, so if you've mailed Harris County before, the address you used may no longer work. Mail sent the old way to the Baker Street or San Jacinto buildings can be returned or delayed. Here's how sending photos to Harris County works now.
Mailing address for photos
The Harris County Sheriff's Office (HCSO) says that, effective 6/16/2025, personal mail is no longer accepted at the facility. Its inmate mail page shows this sample envelope format:
[Full name] [SPN]
HARRIS COUNTY JAIL
PO BOX 21267
TAMPA FL 33622
Put your own full name and complete return address in the top left corner. The HCSO's general mail rules also ask for the person's housing facility and cell block, so add those if you know them.
The downtown jail addresses (700 and 701 N. San Jacinto Street and 1200 and 1307 Baker Street) are still listed on the HCSO page, but only for legal mail or special pre-authorized mail. Family photos shouldn't go there.
Harris County has several jail buildings downtown, and we have pages for each, including the Harris County Detention Center at 1200 Baker Street, the 701 Jail and the Baker Street Jail at 1307 Baker. Under the current HCSO rules, personal mail for all of them goes through the same digital mail address.
The HCSO page also lists some outsourced facilities in other locations where people from Harris County are housed, some with their own mail policies. If your loved one has been moved to one of those, check the HCSO page for that facility's details before you send.
The ID number you need
Harris County identifies each person by their SPN. The HCSO requires the person's full name, exactly as they were booked into jail, plus their SPN on every piece of mail. Mail missing required information is returned to the sender.
You can find a person's SPN with the jail search on the HCSO's Jail Info page, or by calling the HCSO incarcerated person information line at 713-755-5300. Use the name they were booked under, even if they go by something else.
Our post on finding someone's inmate ID number explains how jail numbers differ from state and federal ones, which helps if your loved one is later transferred to a Texas state prison.
Photo rules
The HCSO's mail page says photographs are accepted only if they:
- Are not offensive and not of a sexual nature. Pictures showing full or partial nudity are on the prohibited list.
- Don't contain gang references.
- Don't show guns, drugs or drug paraphernalia.
- Are no larger than 5x7 inches.
- Number 10 or fewer per package.
The prohibited list also includes photocopied images or facsimiles and computer-generated materials downloaded from the Internet, along with greeting cards, stickers, envelopes, stamps and perfumed letters. Real photo prints are the safe choice.
For the digital mail center, the HCSO adds that pictures are accepted for scanning if they meet the requirements, but anything larger than 8.5x11 inches and any non-paper item won't be scanned. Mail that can't be scanned is returned to the sender. Packages, certified mail, checks and money orders aren't accepted either.
We print every photo at 4x6, well inside the 5x7 limit, and pack no more than 10 per envelope.
What your loved one receives
At Harris County, your loved one sees a scanned copy of each photo on an eMessaging tablet or kiosk, not the original print. The HCSO says mail that meets its requirements is digitally scanned at the Securus Digital Mail Center and made available on the jail's tablets and kiosks.
The originals don't go into the jail. The HCSO says that if you want your originals back after scanning, you must include a self-addressed envelope with enough postage; otherwise they're discarded. All physical mail is discarded 90 days after it's scanned.
That doesn't make photos any less worth sending. A clear, well-lit photo scans well and still means a lot. Before you pay, we show you what the person will receive, so there are no surprises. Our post on prison mail scanning explains more about how this works.
Step by step
- Find the SPN. Search the HCSO jail lookup or call 713-755-5300.
- Use the booked name. Write the person's full name the way it appears in the jail records.
- Choose your photos. Clear, bright, family-friendly pictures scan best. Skip anything with gang signs, weapons, drugs or suggestive content.
- Print them 5x7 or smaller as real photo prints, no more than 10 per envelope.
- Address it to the Tampa P.O. box, not the downtown jail, with your full return address.
- Or let us do it. Send through InmatePics, choose the Harris County facility, enter the SPN, and we print real 4x6 photos and mail them addressed the way the facility requires.
Tips to avoid returned mail
- Don't mail photos downtown. The Baker Street and San Jacinto addresses are for legal and pre-authorized mail only.
- Always include the SPN and booked name. The HCSO returns mail missing required information.
- Keep it paper. No stickers and no greeting cards. Non-paper items can't be scanned and are returned.
- Don't send money in the envelope. Checks and money orders aren't accepted by the digital mail center.
- Choose clear photos. Since your loved one sees a scan, sharp and well-lit images look best on a tablet.
Want more? Read why prison mail gets returned.
Frequently asked questions
What is the mailing address for Harris County Jail?
Personal mail goes to the person's name and SPN, Harris County Jail, P.O. Box 21267, Tampa, FL 33622. The downtown Houston addresses are only for legal mail or special pre-authorized mail.
Does Harris County Jail give inmates the actual photos?
No. Since June 16, 2025, personal mail is scanned at a digital mail center and viewed on tablets or kiosks. The originals are discarded unless you include a self-addressed stamped envelope for their return.
How many photos can I send to Harris County Jail?
Up to 10 photographs per package, no larger than 5x7 inches, according to the HCSO.
What is an SPN?
It's the identification number Harris County uses for each person in its jail. The HCSO requires it on all mail, along with the person's booked name.
How much does it cost to send photos with InmatePics?
$0.99 per 4x6 print plus $4.99 per envelope, with no subscription. Ten photos in one envelope cost $14.89. If the facility returns your photos, you get a full refund or a free reprint.
Check our Harris County Detention Center page and other Texas facilities, then start your order.
