How are addresses assigned?
Typically, Pitkin County addresses are assigned using the Century System where address numbers are based on fractions of a mile starting from the origin of a roadway to the start of a property’s driveway. The theory behind this is that anyone in a vehicle could find their destination based from an odometer reading.

Parity (Even/Odd determination) is normally based on compass direction from the center of the street, with addresses on the North or East sides receiving even numbers and those on the South or West receiving odd numbers. However, many streets in the county have been assigned using the Left/Odd and Right/Even methodology. Address Services makes the Even/Odd determination based on Public Safety requirements.

For more information please see the Titled Address Standards 9.08.080: ADDRESS/NUMBERING SYSTEM

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1. Why is there an address ordinance?
2. When does a road need to be named?
3. What is an Addressable Structure?
4. How are addresses assigned?
5. Can I choose my own Road Name?
6. My construction company is building a subdivision in the county. How do the roads being built get assigned names?
7. I am having a house built on my lot. How do I receive an address for my house?
8. I own a piece of property without a house or building on the lot. Do I need to obtain an address for the property?
9. Does my barn/workshop/garage need an address?
10. Do I need to display my address? How should I display my address?
11. Who do I need to inform of my newly assigned address?
12. What does it cost?