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North America

San Francisco

United States of America

✓
✓ Safe to Drink

Quick Answer

Tap water is safe to drink.

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Detailed Guidance

San Francisco tap water is generally suitable to drink when it comes from the regulated public supply. Check local notices and building plumbing if you are in older housing, temporary accommodation, or after service disruptions.

Tap Water Usage Guide

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Brush Teeth

Yes, when served by the regulated public supply

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Ice Cubes

Yes, when made from the regulated public supply

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Wash Fruit

Yes, using clean tap water

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Shower

Yes

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Restaurants

Tap water is generally fine; check posted advisories

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Locals Drink

Yes, from regulated public supplies

Water Quality Score

92

Water Quality

Good

Water Source

EPA says community water systems provide annual Consumer Confidence Reports about drinking-water quality, and U.S. public systems are regulated under the Safe Drinking Water Act with local advisories and CCRs used for current system-specific conditions. No current San Francisco customer-tap compliance source was found in this batch, so the page remains a conservative source-gap assessment.

Sources & review

Last reviewed:

Evidence basis: Limited public evidence

Freshness due:

The guidance is intentionally cautious because current city-level customer-tap evidence is incomplete.

EPA says community water systems provide annual Consumer Confidence Reports about drinking-water quality, and U.S. public systems are regulated under the Safe Drinking Water Act with local advisories and CCRs used for current system-specific conditions. No current San Francisco customer-tap compliance source was found in this batch, so the page remains a conservative source-gap assessment.

Open caveat: No current public San Francisco customer-tap compliance dataset was found in this batch.; Countrywide travel-health guidance supports conservative visitor behavior but does not prove conditions in every neighborhood, hotel, building tank, or private supply.

Travel Safety Information

Pickpocket Risk

Moderate

Night Safety

Caution

Scam Risk

Moderate

English Level

Native

Best Time to Visit

September to November (warmest and clearest); May to October also generally pleasant

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Other Cities in United States of America

New York City

United States of America

✓ Safe to Drink

New York City tap water is generally safe to drink from the municipal supply. Let water run briefly after long stagnation in older buildings and follow any building-specific or official advisories.

Los Angeles

United States of America

✓ Safe to Drink

Los Angeles tap water is generally suitable to drink when it comes from the regulated public supply. Check local notices and building plumbing if you are in older housing, temporary accommodation, or after service disruptions.

Chicago

United States of America

✓ Safe to Drink

Chicago tap water is generally suitable to drink when it comes from the regulated public supply. Check local notices and building plumbing if you are in older housing, temporary accommodation, or after service disruptions.

Washington DC

United States of America

✓ Safe to Drink

Washington DC tap water is generally suitable to drink when it comes from the regulated public supply. Check local notices and building plumbing if you are in older housing, temporary accommodation, or after service disruptions.

Further reading