FCI Danbury Federal Inmate Roster

FCI Danbury Federal Custody Overview

FCI Danbury is a Federal Correctional Institution in the city of Danbury, in the northern part of Fairfield County. The Federal Bureau of Prisons runs it. That makes it different from every other lockup tied to this county. It is not a state prison, and it is not a county jail. The Bureau lists it as a low-security FCI with an adjacent minimum-security satellite camp. Both sit on the same Route 37 grounds. The Bureau places it in its Northeast Region and ties it to the federal judicial district of Connecticut. The county the Bureau records for the site is Fairfield.

The population here is mixed. FCI Danbury holds both male and female federal offenders, which is unusual for a single Bureau site. The main institution is low security, and the camp beside it is minimum security. No rated-capacity number was published for the facility, so every figure tied to it is a population count rather than a design limit. The official Bureau page is the cleanest place to confirm the building, its mission, and its current notices.

The Bureau of Prisons posts the facility's address, security level, visiting rules, and mail guidance on its official institution page for FCI Danbury.

That page is the first stop any time you need to confirm an FCI Danbury detail before you travel, write, or send funds.

Who Is Held at FCI Danbury

The people here are federal inmates. They were charged under federal law, prosecuted in federal court, and placed in the custody of the Bureau of Prisons. That is a separate track from the state cases that flow through Connecticut Superior Court. A person at FCI Danbury was not booked into a Fairfield County jail and will not move to a state prison the way a state defendant might. The Bureau holds them, classifies them, and may transfer them among federal sites across the country.

Two security settings share the grounds. The main institution is the low-security FCI, which held the larger share of the population on the most recent count. The minimum-security satellite camp sits next to it and holds a smaller group. Because the Bureau lists the gender here as mixed, both men and women are confined at the site. That mix, the camp, and the federal status together make FCI Danbury one of the more distinctive facilities in the county.

FCI Danbury Inmate Population

The Bureau publishes live population figures through a public data endpoint. As of May 28, 2026, that endpoint listed 1,223 total inmates at the FCI Danbury site. The count splits into 1,111 people at the main FCI and 112 people at the adjacent camp. No rated capacity was published alongside those numbers, so there is no design limit to compare them against. The figures below are head counts drawn straight from that federal source.

These counts move over time as people arrive, transfer, and leave. The Bureau stamps each population report with a date, so the May 28, 2026 figure is a snapshot rather than a fixed total. The same endpoint carries the facility's address, phone, security level, and mail addresses, which makes it a useful cross-check against the public institution page.

The Bureau's public data endpoint shows Danbury's address, low-security level, mixed gender, camp, and the dated population figures in plain text.

Read those numbers as a current count and not as a capacity, since the Bureau did not publish a design limit for the site.

Why FCI Danbury Inmates Skip the State Search

This is the point that trips up the most families. FCI Danbury is federal, so its inmates do not appear in the Connecticut Department of Correction inmate search. The state database covers people in state custody, both accused and sentenced, at facilities the state runs. It does not reach into federal custody. Searching the state locator for a federal inmate returns nothing, and that empty result is not proof the person is free.

The mismatch creates a real puzzle. Someone can sit inside a prison in Fairfield County and still have no Connecticut custody record. They were arrested federally, charged federally, and held by a federal agency, so the state never opened a file. The right move is to switch systems. For state custody after a local arrest, the Bridgeport Correctional Center page and the jail inmate records page cover the Connecticut search. For FCI Danbury, the federal locator is the tool.

The same logic explains why a state search can come up empty for many reasons. A federal hold, an immigration hold, a sealed record, a recent booking, a transfer, or a different spelling can all hide a person from one database while another system still has them. When the state shows nothing, the federal and immigration locators are the next places to check.

How to Look Up an FCI Danbury Inmate

The right tool is the federal inmate locator at bop.gov/inmateloc. It covers federal inmates held by the Bureau of Prisons from 1982 to the present. You can search two ways. One path uses a number, and the other uses a name. The number path is the surest, since a unique identifier sidesteps common-name mix-ups, but a name search works when a number is all you lack.

1. Open the federal Bureau of Prisons inmate locator and skip any state or county search, since neither covers FCI Danbury.
2. Choose the number path if you have an identifier, using the BOP Register Number, DCDC Number, FBI Number, or INS Number. The register number reads in a #####-### format.
3. Otherwise pick the name path and enter the first and last name, adding the middle name, race, age, or sex to narrow a common match.
4. Read the location field in the result to confirm the person is held at FCI Danbury, then note the release date and other details.

The locator gives the searcher a clean set of fields for both paths. The table below lays out what the search form asks for, drawn from the official locator page.

The locator and its search fields appear on the official Bureau page, which also spells out the federal release-date warning.

Use the number path first when you can, because it returns the cleanest match for a person held at FCI Danbury.

What the FCI Danbury Search Shows

A federal locator result is shorter than a state record, but it covers the basics. The Bureau returns a small set of public fields for each match. There are no mugshots in the public result. The federal locator's public fields do not include a booking photo, so a federal search will not hand you an image the way some county rosters do. The list below is the full set of fields the locator displays.

• Name of the inmate
• Register number, in the #####-### format
• Age
• Race
• Sex
• Release date
• Location, such as FCI Danbury

Treat the release date with care. The Bureau warns that release dates can be recalculated because of First Step Act credits and may not be current, so check back rather than treat one date as final. A result that reads Released or Not in BOP Custody, with no facility location, means the person has left Bureau custody. It does not mean the person is fully free. The Bureau notes they may still be in another correctional or criminal-justice system, or on parole or supervised release.

Note: A federal release date can shift due to earned credits, so verify it through the locator close to any expected date rather than relying on an earlier reading.

Federal, State, and ICE Custody

Three separate systems can hold a person tied to Fairfield County, and each has its own lookup. Mixing them up is the most common reason a search fails. Federal inmates go to the Bureau of Prisons locator. State inmates go to the Connecticut Department of Correction search. Immigration detainees go to a separate Immigration and Customs Enforcement locator, which the state explicitly does not cover. The comparison below sorts who falls where and which tool to use.

The lines blur at one stage. Before sentencing, a federal defendant may be held through the U.S. Marshals rather than the Bureau of Prisons, and the locator is strongest for Bureau custody rather than every federal pretrial detainee. The state database, for its part, leaves out people held only for immigration enforcement. When one system draws a blank, the others are worth a look before you assume a person is not in custody anywhere.

FCI Danbury Address and Contact

The facility takes general calls at its main line. The Bureau also lists a fax and an executive-assistant email for the site. The card below carries the core contact details for reaching FCI Danbury. Call ahead before any trip, since the Bureau tells visitors to confirm the schedule before they depart.

For questions the main line cannot answer, the Bureau lists the executive-assistant email DAN-ExecAssistant-S@bop.gov for the site. The official institution page carries the full set of contact and visiting details, and it is the place to confirm any of these before you act on them. Because federal rules govern this facility, the state Department of Correction cannot help with an FCI Danbury inmate, and a Connecticut court has no role in a federal case.

Visiting Someone at FCI Danbury

Visiting here runs on Bureau of Prisons rules, not the state's video-visit system. The Bureau welcomes visitors but tells them to review the facility's visiting regulations and the general Bureau visiting overview before they come. Typical posted hours may not cover every case. Special housing unit restrictions, for instance, can change who may visit and when. The list below sets out the points the Bureau stresses for any federal visit.

• Read the institution's own visiting regulations before traveling
• Check the general Bureau of Prisons visiting overview for federal rules
• Expect that posted hours may not cover special cases like housing-unit restrictions
• Know that the warden may restrict or cancel visiting for safety or security reasons
• Allow for cancellations during severe weather or incidents affecting operations
• Call the facility to confirm the schedule before you depart

The warden holds wide discretion over the visiting schedule. Visits can be limited or called off for safety and security, for severe weather, or for any incident that disrupts normal operations at the site. Because the camp and the main institution sit on the same grounds but run differently, confirm which set of rules applies to the person you plan to see. A phone call before you leave is the surest way to avoid a wasted trip.

FCI Danbury Inmate Mail and Money

Mail and money follow different paths here, and the difference matters. Letters go to the facility, but funds do not. Address mail with the inmate's full sentenced name and register number, then the FCI Danbury Route 37 address in Danbury. Money is the trap. The Bureau says never to send funds to the facility address, because mailed money for federal inmates goes to a central Bureau processing center in Des Moines, Iowa, instead. The table sorts the two channels.

Get the name and number exact. The Bureau asks for the inmate's full sentenced name and register number on mail, since a missing or wrong number can delay or return a letter. For someone at the camp, use the same base address but add the Satellite Camp label so the mail reaches the right unit. None of the state vendors, deposit forms, or trust-fund addresses used for Connecticut inmates apply here, because this is federal custody with its own money process.

U.S. Marshals and ICE Custody

Not every federal hold lands a person in the Bureau locator right away. Before sentencing, a federal defendant is often held through the U.S. Marshals rather than the Bureau of Prisons. The locator is built for Bureau custody, so it may not list every federal pretrial detainee. For questions about federal pretrial custody, transport, or prisoner handling, the U.S. Marshals office for the district of Connecticut is the right channel.

Immigration custody is a different system again. People held on immigration detention do not appear in the Connecticut state database, which excludes anyone held only for immigration enforcement. They are searched through a separate federal immigration locator, and the agency keeps its own directory of detention sites. The list below points to the federal channels beyond the Bureau locator.

• U.S. Marshals, District of Connecticut for federal pretrial and transport custody
• ICE Online Detainee Locator for people held on immigration detention
• ICE detention facility directory for the list of immigration sites

No dedicated immigration detention site in Fairfield County was confirmed in the official directory, so an immigration search may point elsewhere in the system. The takeaway holds across all three channels. A person tied to the county can be in Bureau custody, in Marshals custody, or in immigration custody, and each has its own lookup. Start with the system that fits the charge, then move to the next if a search comes up empty.