Boulder, CO ZIP codes
Boulder, Colorado has 11 ZIP codes, including 5 PO Box ZIPs. They are in Boulder County.
- Population in these ZIPs
- 128,938
- Avg. median income
- $94,300population-weighted
- Typical home value
- $956,000population-weighted
- Metro area
- Boulder, CO
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Boulder, CO ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 80301 | Boulder County | 25,007 | $95,207 | $689,700 |
| 80302 | Boulder County | 29,569 | $61,698 | $1,082,300 |
| 80303 | Boulder County | 24,996 | $78,555 | $806,300 |
| 80304 | Boulder County | 25,383 | $126,558 | $1,214,800 |
| 80305 | Boulder County | 16,291 | $126,107 | $961,900 |
| 80306 PO Box | Boulder County | — | — | — |
| 80307 PO Box | Boulder County | — | — | — |
| 80308 PO Box | Boulder County | — | — | — |
| 80309 PO Box | Boulder County | — | — | — |
| 80310 | Boulder County | 7,692 | — | — |
| 80314 PO Box | Boulder County | — | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Boulder
- Jamestown 6 mi
- Eldorado Springs 8 mi
- Louisville 10 mi
- Lafayette 11 mi
- Nederland 13 mi
- Longmont 14 mi
- Lyons 14 mi
- Broomfield 14 mi
- Erie 15 mi
- Ward 15 mi
- Rollinsville 16 mi
- Black Hawk 17 mi
Frequently asked questions
What is the ZIP code for Boulder, CO?
Boulder, CO has 11 ZIP codes: 80301, 80302, 80303, 80304, 80305, 80306, 80307, 80308, 80309, 80310 and 80314.
What county is Boulder, Colorado in?
Boulder ZIP codes are in Boulder County.
Which Boulder ZIP codes are PO Boxes?
80306, 80307, 80308, 80309 and 80314 are PO Box or single-organization ZIP codes; they have no residential delivery area.