Courthouse
Which county you live in decides which court handles your county business
Littleton is the county seat of Arapahoe County, and the city extends into Jefferson County and Douglas County as well. Each of those counties belongs to a different judicial district, so a Littleton address can correspond to any of 3. The 2025 change matters more than it might appear. Douglas County used to sit in the 18th with Arapahoe. A Littleton resident on the Douglas County side who reads anything written before 2025 will find their county described as part of a district it has since left.
- Arapahoe County is the 18th Judicial District, which since January 14, 2025 comprises Arapahoe County alone. District matters are heard at the Arapahoe County Justice Center, 7325 S. Potomac St., in Centennial, and at the Arapahoe County Courthouse, 1790 W. Littleton Blvd., in Littleton itself.
- Jefferson County is the 1st Judicial District along with Gilpin County, at the Jefferson Combined Court, 100 Jefferson County Parkway, Golden.
- Douglas County is the 23rd Judicial District, created on January 14, 2025 with Elbert and Lincoln counties, at the Douglas County Courthouse, 4000 Justice Way, Suite 2009, Castle Rock.