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Random Colorado ZIP Code Generator

Random real 5-digit Colorado ZIP Codes by city. Each result keeps its reference city and state pairing together for realistic test data.

Find ZIP Codes by US State

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About Colorado ZIP Codes

The Colorado reference data contains 527 distinct five-digit ZIP Codes spanning 80002–81657. Frequently represented place names include Denver, Colorado Springs, Aurora, Littleton.

Prefixes such as 800 · 805 · 811 · 816 appear across the reference data and reflect different USPS processing and local delivery areas in Colorado. ZIP Codes describe mail routes and do not necessarily match city or county boundaries.

80002–81657

Reference ZIP span

Lowest and highest five-digit ZIP in the Colorado reference data

800 · 805 · 811 · 816

Example prefixes

Three-digit prefixes sampled across the state reference range

527

Distinct ZIP Codes

Five-digit ZIP Codes available in this state reference set

Frequently Asked Questions

The five-digit ZIP Codes in this reference set span 80002–81657, with 527 distinct codes. This describes the generator data, not an exhaustive current USPS directory.