County Guide

How to Find Someone in Arapahoe County

Last updated: March 2026

Arapahoe County sits directly east of Denver and contains Aurora — Colorado's third-largest city — along with Centennial, Englewood, Littleton, and Cherry Hills Village. Its position as a direct Denver suburb creates a distinctive search pattern: many residents work and spend time in Denver but file their records in Arapahoe County.

Updated March 202610 minute readBy Brian Mahon
Advertiser Disclosure: PublicRecordsService.org may receive referral compensation from some of the services featured on this page. That does not change how we describe them, but it may affect placement and ranking.

Finding someone in Arapahoe County

Arapahoe County has an estimated 700,000 residents and is the eastern anchor of the Denver metro area. Aurora is the dominant city, but Centennial, Englewood, Littleton, and the small city of Cherry Hills Village are also fully within the county. Several communities that residents commonly refer to as "Denver" — including parts of Aurora — are actually in Arapahoe County, which means their court records and property filings are in Arapahoe County systems, not Denver County systems.

The county boundary situation in the Denver metro is one of the most common sources of confusion I see in people searches here. Aurora alone straddles three counties: the western portion is in Denver County, the southern portion dips into Douglas County, and the bulk of the city is in Arapahoe County. A search anchored to "Aurora" without knowing which part of Aurora the person lived in can send you to the wrong court system entirely.

For searches needing broader Colorado context, see the Colorado state guide.

Key takeaways

  • Arapahoe County has approximately 700,000 residents; Aurora is the largest city and Colorado's third largest overall.
  • Aurora spans Arapahoe, Denver, and Douglas counties — confirming which part of Aurora before searching courts is essential.
  • Arapahoe County District Court (18th Judicial District) handles felony, civil, family, and probate; Arapahoe County Court handles misdemeanors and civil under $25,000.
  • Colorado's ICCES public access portal covers Arapahoe County District Court records statewide.

Arapahoe County quick facts

  • Population estimate (2023): approximately 700,000 (U.S. Census Bureau)
  • County seat: Littleton
  • Largest city: Aurora (Arapahoe County portion)
  • State: Colorado
  • Primary court system: Arapahoe County District Court, 18th Judicial District (felony, civil, family, probate); Arapahoe County Court (misdemeanors, civil under $25,000)

Population estimates are based on data from the U.S. Census Bureau.

How record searches work in Arapahoe County

Arapahoe County is part of Colorado's 18th Judicial District, which covers Arapahoe, Douglas, Elbert, and Lincoln counties. The Arapahoe County District Court handles all general jurisdiction matters — felony criminal, civil over $25,000, domestic relations, juvenile, and probate. Arapahoe County Court handles misdemeanor criminal matters, traffic violations, and civil cases under $25,000.

Aurora's multi-county footprint is the most important structural issue to resolve before searching. Aurora's western ZIP codes (80010, 80011, 80012) are primarily in Arapahoe County. Its northwesternmost area near the Denver border falls in Denver County. The southern reaches near E-470 can fall into Douglas County. Confirming the county for a specific Aurora address before choosing a court system avoids wasted searches.

The court record search guide covers the general framework for moving from a name search into county court lookups.

Court system overview

The 18th Judicial District courthouse for Arapahoe County is located in Centennial. Arapahoe County District Court handles the full range of general jurisdiction matters for the county. Arapahoe County Court is co-located and handles misdemeanor and lower civil matters.

Aurora Municipal Court handles ordinance violations and some traffic matters within Aurora city limits. Englewood Municipal Court, Littleton Municipal Court, and Centennial Municipal Court operate similarly for those cities. Each is a separate system from the county courts.

Types of records available

  • Arapahoe County District Court records — felony criminal, civil, family law, probate
  • Arapahoe County Court records — misdemeanor criminal, traffic, small claims
  • Aurora, Englewood, Centennial, and Littleton Municipal Court records — city ordinance matters
  • Arrest and booking information through the Arapahoe County Sheriff's Office and Aurora Police Department
  • Property records through the Arapahoe County Clerk and Recorder and Assessor
  • Marriage and death records through the Arapahoe County Clerk and Recorder and Colorado Vital Records

Crime statistics and public-safety context

Public-safety reporting in Arapahoe County comes from multiple agencies: Aurora Police Department (city proper), Englewood Police Department, Littleton Police Department, Centennial Police Department, and the Arapahoe County Sheriff's Office for unincorporated areas. Aurora is by far the largest contributor to county-level incident data.

For record searches, the multi-agency structure means that determining which law enforcement agency handled an incident is part of determining which court system holds the records. Aurora Police incidents flow into the Arapahoe County court system for most cases, unless the address was in the Denver County or Douglas County portion of Aurora.

Major cities in Arapahoe County

  • Aurora — Colorado's third-largest city; approximately 390,000 residents in the Arapahoe County portion; spans three counties
  • Centennial — approximately 110,000 residents; incorporated 2001; county seat area; one of the largest incorporated cities in the U.S. at time of incorporation
  • Englewood — approximately 35,000 residents; directly south of Denver; separate municipal court
  • Littleton — approximately 47,000 residents; county seat; portions also extend into Jefferson and Douglas counties
  • Cherry Hills Village — approximately 6,500 residents; small affluent enclave within Arapahoe County; low volume in public record systems

Common search scenarios

Searching by name and city

For Aurora searches specifically, knowing the ZIP code or neighborhood is more important than in most other counties. ZIP codes 80010, 80011, 80012, 80013, 80014, 80015, 80016, and 80017 are primarily in the Arapahoe County portion of Aurora. If you have an address in these ZIP codes, you are almost certainly in Arapahoe County District Court territory for felony and civil matters.

Checking county court records

Arapahoe County District Court records are accessible through Colorado's ICCES portal. For misdemeanor matters, Arapahoe County Court is the correct system. For Aurora ordinance violations, Aurora Municipal Court is a third separate system. Always identify the case type and jurisdiction before deciding which court to search.

Searching after a move

Arapahoe County residents who leave the Denver metro often head to Douglas County to the south (Castle Rock, Parker) or farther out along the I-70 corridor. If an Arapahoe County search turns up current records but no current address, checking Douglas County or Jefferson County is a natural follow-on step.

Best sites to review first

Before going into Arapahoe County court systems, these are the two services I recommend reviewing first.

Service Why people use it Best fit
Instant Checkmate Useful for reviewing address history across Aurora and the Denver metro before committing to a specific county court system Quick first-pass searches
TruthFinder Helpful when you want broader report-style context including prior addresses and relatives across the multi-county Denver metro area Expanded public-record context

Reminder: these services are not for employment, tenant screening, insurance, credit, or any other FCRA-regulated use.

Frequently asked questions

Is Aurora in Arapahoe County or Denver County?

Most of Aurora — including the bulk of the city's residential area — is in Arapahoe County. However, Aurora's northwestern edge crosses into Denver County, and its southern portions extend into Douglas County. For court record purposes, you need to know which county a specific Aurora address falls in before choosing a court system. The ZIP code is usually a reliable starting point: most 800-series Aurora ZIP codes are Arapahoe County, but a county address lookup is the most reliable confirmation.

Where is the Arapahoe County courthouse located?

The Arapahoe County Justice Center — which houses the District Court and County Court — is located in Centennial, not in Aurora. Centennial is the county seat for Arapahoe County. Aurora has its own municipal court for city ordinance matters, which is separate from the county courts.

Can I use these searches for jobs, housing, or insurance decisions?

No. The services discussed on this page are not consumer reporting agencies and the information here is not a consumer report. They should not be used for employment, tenant screening, insurance underwriting, credit, or any other purpose regulated by the Fair Credit Reporting Act.

Other Colorado county guides

Brian Mahon

About the Author

Brian Mahon has worked in the public records data industry for more than 13 years. His experience includes roles in product development, marketing, and web platforms at one of the largest public records companies. His work focuses on helping consumers understand how public record search tools work and how to interpret the information they provide.

Read full bio