Average Rent in 80108, Castle Rock, CO
Based on HUD's 2026 Small Area Fair Market Rent data — updated annually.
| Unit size | Typical rent |
|---|---|
| Studio | $1,790/mo |
| 1 Bedroom | $1,910/mo |
| 2 Bedroom | $2,280/mo |
| 3 Bedroom | $2,980/mo |
| 4+ Bedroom | $3,330/mo |
A 2-bedroom apartment in 80108 runs about 7% above the Denver-Aurora-Centennial metro average of $2,134/month. Rent varies block by block within any metro area — this figure reflects HUD's official Small Area Fair Market Rent for this specific ZIP code, not a metro-wide estimate.
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Check My Renewal →Source: HUD Small Area Fair Market Rents, 2026. See rent across every ZIP code in this area on the Denver-Aurora-Centennial rent guide.