Rio Vista California ZIP Codes
Rio Vista holds a single ZIP code.
Every ZIP code in Rio Vista
| ZIP code | County |
|---|---|
| 94571 | Solano County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Rio Vista codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Rio Vista. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Rio Vista ZIP code begins 945. Those first three digits identify the sectional center facility that processes mail for this part of California. Statewide that range covers 93 ZIP codes, so Rio Vista accounts for 1% of it.
Every California ZIP prefix and the region it covers →
Area codes covering Rio Vista
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Rio Vista occupies.
Rio Vista California area codes in full →
Where Rio Vista's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Rio Vista
| City | Distance | ZIP codes |
|---|---|---|
| Isleton California ZIP codes | 5.5 mi | 1 ZIP code |
| Oakley California ZIP codes | 13 mi | 1 ZIP code |
| Antioch California ZIP codes | 15 mi | 2 ZIP codes |
| Pittsburg California ZIP codes | 15 mi | 1 ZIP code |
| Brentwood California ZIP codes | 17 mi | 1 ZIP code |
| Suisun City California ZIP codes | 17 mi | 1 ZIP code |
| Fairfield California ZIP codes | 19 mi | 2 ZIP codes |
| Vacaville California ZIP codes | 19 mi | 3 ZIP codes |
Straight-line distance between place reference points, not driving distance.