Updated August 2026
Best beaches in Northern Mariana Islands by water quality
Northern Mariana Islands has 87 public beaches in the EPA monitoring dataset, 0 of them with enough bacteria samples to grade. . Full ranking below. National lists: cleanest beaches in the US and beaches that exceed bacteria limits most often.
| Grade | Beach | County | % over limit | Samples | Advisory |
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Northern Mariana Islands beach grade updates
Get new grades and water-quality updates for Northern Mariana Islands beaches by email.
Where to stay near Northern Mariana Islands beaches
Find beachfront hotels, condos, and vacation rentals across Northern Mariana Islands — live availability and prices.
Top-rated places to stay near Northern Mariana Islands beaches
Prices for Oct 2–4, 4 adults. Change dates on the map below.
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Watch Northern Mariana Islands beach grades
Get an email when a graded Northern Mariana Islands beach posts a new sample or swim advisory.
Frequently Asked Questions
The table ranks Northern Mariana Islands beaches by Beach Safety Grade from EPA bacteria samples. Grade A beaches have the fewest exceedances of the safe-swimming limit.
Hotels, condos, and vacation rentals for Northern Mariana Islands beaches are on the map on this page. Compare water quality in the table, then book from the town you actually want to swim from.
Northern Mariana Islands beaches in the EPA inventory are listed below. A Beach Safety Grade is assigned only when enough bacteria samples exist; ungraded is missing evidence, not a passing or failing mark. Check the official advisory the day you swim.
The day you swim. A grade is a history of samples, not a same-day clearance — check the county advisory before you get in.