Denver’s mayor was called before a Congressional committee in early 2025 to answer for the city’s immigration cooperation policies — a hearing that put the Denver Sheriff Department’s custody practices under a national spotlight most county sheriff’s offices never experience. Denver County, which functions as a fully consolidated city-county government covering just the city itself, is home to roughly 715,000 residents and runs a structure that looks meaningfully different from a typical Colorado county. Here’s how Denver’s administration, jail, courts, and sheriff’s office actually work.

Denver County Quick Facts
| Category | Details |
| Government Structure | Consolidated City and County of Denver |
| Population | Roughly 715,000 |
| Mayor | Mike Johnston, in office since July 2023 |
| Clerk and Recorder | Paul López |
| City Auditor | Timothy O’Brien |
| Sheriff Department | Denver Sheriff Department (DSD) |
| Main Jail Facilities | Downtown Detention Center (Van Cise-Simonet) and Denver County Jail |
| Downtown Detention Center Address | 490 W. Colfax Ave, Denver, CO 80204 |
| Court System | Denver County Court and Denver District Court |
| Time Zone | Mountain Time (MST/MDT) |
A City and County Rolled Into One
Denver is one of a handful of places in the country structured as a fully consolidated city and county government — there’s no separate “Denver County” administration distinct from the city itself, unlike neighboring El Paso County or most counties elsewhere. Mayor Mike Johnston, a former Colorado state senator and educator who once served as principal of a youth detention center earlier in his career, has led the consolidated government since July 2023. He works alongside a 13-member City Council, while several offices — including the Clerk and Recorder and City Auditor — are separately elected.
A structural detail worth understanding upfront: Denver’s law enforcement functions split cleanly between two separate departments. Denver Police handles street patrol and criminal investigations, while the Denver Sheriff Department focuses entirely on custody, courts, transports, warrants, and civil duties — there’s no independently elected county sheriff running patrol the way there is in most other counties in this series.
A few structural basics:
- The Mayor’s office and City Council handle general administration and budget for the consolidated government
- The Clerk and Recorder handles elections, property records, and vital documents — a separate function from court record-keeping
- The Denver Sheriff Department is not an elected office; it operates as a city agency under the Mayor’s administration
The Denver Sheriff Department: Custody, Not Patrol
Unlike the elected sheriffs found in most counties nationally, the Denver Sheriff Department operates as an appointed city agency responsible specifically for custody and court-related functions rather than street-level law enforcement. This division of labor means:
- Denver Police Department — handles non-emergency and emergency patrol, reachable at 720-913-2000 for non-emergency service
- Denver Sheriff Department (DSD) — manages the jail system, court security, prisoner transport, warrant service, and civil process within city and county limits
DSD’s headquarters sits at 1437 Bannock Street in downtown Denver, and the department is responsible for administering the detention facilities and ensuring security throughout the consolidated city-county.
The Jail System: Two Facilities
Denver operates two correctional centers rather than one central jail:
- Downtown Detention Center (Van Cise-Simonet) — located at 490 W. Colfax Ave, phone 720-337-0400, handling intake, housing, and release processing
- Denver County Jail — located at 10500 E. Smith Rd, phone 720-913-3642, functioning as a separate facility for a portion of the county’s detained population
For anyone trying to locate someone in custody:
- Call the Downtown Detention Center or Denver County Institution directly using the numbers above for custody status updates
- DSD’s website posts a “Prisoner Lookup” tool where you can search using booking number or name
- Confirm which of the two facilities holds the person you’re looking for before visiting, since bookings and transfers can shift between them
- Family and friends can post cash, surety, or personal recognizance bonds as ordered by the court; licensed bail bond agents typically meet clients at the Downtown Detention Facility’s bonding window
- Booking and release timing depends on court orders and operational factors, so confirm current status by phone rather than assuming a fixed timeline
Immigration Policy and the Jail’s National Spotlight
Denver’s status as a self-described welcoming, non-cooperating jurisdiction on federal immigration enforcement drew direct Congressional scrutiny in early 2025, when the House Oversight Committee’s chairman requested Mayor Johnston testify publicly about the city’s policies. The committee characterized Denver as a “sanctuary jurisdiction” hindering federal enforcement efforts — a characterization Johnston pushed back on directly, stating the city would collaborate on targeting violent criminals but would not, in his words, “do ICE’s job for them.”
Because the Denver Sheriff Department runs the jail rather than Denver Police, custody-related immigration cooperation questions route specifically through DSD rather than the police department — worth understanding if this issue is relevant to your situation.
Courts and the Clerk and Recorder
Denver’s court system includes both Denver County Court, handling misdemeanors and lower-level civil matters, and Denver District Court, handling felonies and major civil cases. Separately, the Clerk and Recorder’s office, currently led by Paul López, handles elections, property records, marriage licenses, and vehicle titling — a distinct function from court case administration.
A few practical points:
- For court-record questions, contact Denver County Court directly, or reach the Clerk and Recorder’s information line through Denver’s 311 system (720-913-1311 from outside the city)
- Case records can often be checked online before an in-person visit is necessary
- Confirm whether your need is a court matter (case filings, dockets) or a Clerk and Recorder matter (property records, licenses) before contacting the wrong office
Before You Visit
- Bring valid, government-issued photo ID to any city-county building, courthouse, or jail facility
- Confirm which detention facility — Downtown or the County Jail on Smith Road — holds the person you’re trying to reach
- Downtown Denver parking near the Detention Center and courts complex can be limited on weekdays — light rail is often more practical
- Call ahead for current visitation hours and rules, since Denver’s consolidated structure means procedures can differ from other Colorado counties
Frequently Asked Questions
Q1. Why doesn’t Denver have an elected county sheriff like other Colorado counties?
Denver is a consolidated city and county government, and its Sheriff Department operates as an appointed city agency under the Mayor’s administration rather than an independently elected office. It also focuses exclusively on custody, courts, and civil duties — Denver Police, a separate department, handles all street patrol.
Q2. How do I find out if someone is in a Denver jail facility?
Call the Downtown Detention Center at 720-337-0400 or the Denver County Institution at 720-913-3642 directly for custody status updates, or use the Prisoner Lookup tool on the Denver Sheriff Department’s website. Confirm which of the two facilities holds the person before visiting.
Q3. What’s the difference between Denver County Court and Denver District Court?
Denver County Court handles misdemeanors and lower-level civil matters, while Denver District Court handles felonies and major civil cases. Check your citation or case paperwork to confirm which applies to your specific situation.
Q4. Does the Denver Sheriff Department cooperate with federal immigration enforcement?
Denver has publicly described itself as not fully cooperating with federal immigration enforcement, a policy that drew Congressional scrutiny in 2025. Since custody operations fall under the Sheriff Department rather than Denver Police, confirm current cooperation policy directly with DSD if this is relevant to your specific situation, as policies can evolve.