Mill Valley, CA ZIP codes
Mill Valley, California has 2 ZIP codes, including 1 PO Box ZIP. They are in Marin County.
- Population in these ZIPs
- 32,706
- Avg. median income
- $209,900population-weighted
- Typical home value
- $2,181,400population-weighted
- Metro area
- San Francisco-Oakland-Fremont, CA
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Mill Valley, CA ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 94941 | Marin County | 32,706 | $209,870 | $2,181,400 |
| 94942 PO Box | Marin 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 Mill Valley
- Greenbrae 2 mi
- Larkspur 2 mi
- Corte Madera 3 mi
- Ross 3 mi
- Fairfax 5 mi
- Stinson Beach 5 mi
- San Anselmo 5 mi
- San Quentin 5 mi
- Sausalito 6 mi
- Belvedere Tiburon 6 mi
- San Rafael 6 mi
- Woodacre 8 mi
Frequently asked questions
What county is Mill Valley, California in?
Mill Valley ZIP codes are in Marin County.
Which Mill Valley ZIP codes are PO Boxes?
94942 is a PO Box or single-organization ZIP code; it has no residential delivery area.