Water quality monitoring data for 63 stations across 21 municipalities in Monmouth County.
Before you swim: ratings on this page are based on historical NJDEP Cooperative Coastal Monitoring Program data (2021–2025 sampling seasons), not live conditions. Always check current advisories and closures on the state's official NJBeaches.org monitoring site before swimming.
NJDEP's Cooperative Coastal Monitoring Program samples 63 stations across 21 Monmouth County municipalities — 55 on ocean beaches, 8 on bay and inlet waters. Over the 2021–2025 monitoring period, 60 of 63 stations (95%) rate excellent or good, and 48 carried zero swim advisories in 2025.
The consistently cleanest water in the county is in Avon-by-the-Sea Borough, where 2 stations average a 6 CFU/100mL five-year geometric mean — well under the EPA action value of 104. The single cleanest station is Conners Beach in Highlands Borough at 6 CFU/100mL.
48
All Clear
12
Caution
3
Check Conditions
Based on 2025 advisory data. Stations with no advisories are "All Clear".
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1 of 1 rated excellent/good · avg 7 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Cedar | ocean | 7 | 7 | 0 | Excellent |
3 of 3 rated excellent/good · avg 7 CFU/100mL (5-yr) · 1 2025 advisory · town guide
1 of 1 rated excellent/good · avg 6 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Popamora Point | ocean | 6 | 6 | 1 | Excellent |
2 of 2 rated excellent/good · avg 6 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Sylvania | ocean | 6 | 6 | 0 | Excellent |
| L Jetty Washington Ave | ocean | 5 | 6 | 0 | Excellent |
4 of 4 rated excellent/good · avg 8 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| 12th Ave | ocean | 5 | 6 | 0 | Excellent |
| 5th Ave | ocean | 6 | 6 | 0 | Excellent |
| 20th | ocean | 6 | 7 | 0 | Excellent |
| L Street Beach | ocean | 12 | 12 | 0 | Excellent |
2 of 2 rated excellent/good · avg 6 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Ocean Park | ocean | 5 | 6 | 0 | Excellent |
| Evergreen | ocean | 6 | 6 | 0 | Excellent |
4 of 4 rated excellent/good · avg 8 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Deal Casino | ocean | 6 | 7 | 0 | Excellent |
| Hathaway Avenue Beach | ocean | 8 | 7 | 2 | Excellent |
| Roosevelt Ave | ocean | 7 | 8 | 0 | Excellent |
| Philips Ave | ocean | 7 | 8 | 0 | Excellent |
0 of 1 rated excellent/good · avg 31 CFU/100mL (5-yr) · 5 2025 advisories
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Shrewsbury River Yacht Club | river | 40 | 31 | 14 | Fair |
3 of 3 rated excellent/good · avg 11 CFU/100mL (5-yr) · 4 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Conners Beach | ocean | 7 | 6 | 2 | Good |
| Miller Beach | ocean | 11 | 11 | 1 | Good |
| Highlands Rec Center | ocean | 23 | 17 | 4 | Good |
1 of 1 rated excellent/good · avg 13 CFU/100mL (5-yr) · 1 2025 advisory
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Beachway and Raritan | ocean | 13 | 13 | 4 | Good |
0 of 1 rated excellent/good · avg 39 CFU/100mL (5-yr) · 7 2025 advisories
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Broad | ocean | 45 | 39 | 17 | Poor |
1 of 1 rated excellent/good · avg 8 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Village Beach Club | ocean | 6 | 8 | 2 | Excellent |
8 of 8 rated excellent/good · avg 8 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Laird | ocean | 6 | 6 | 0 | Excellent |
| Atlantic Ave | ocean | 6 | 7 | 0 | Excellent |
| Joline | ocean | 6 | 7 | 0 | Excellent |
| North Bath | ocean | 6 | 7 | 1 | Excellent |
| Ocean Beach Club | ocean | 6 | 7 | 1 | Excellent |
| Elberon Bch Clb | ocean | 8 | 8 | 2 | Excellent |
| Imperial House | ocean | 7 | 8 | 0 | Excellent |
| South Bath | ocean | 7 | 10 | 3 | Excellent |
3 of 3 rated excellent/good · avg 6 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| East Main | ocean | 6 | 6 | 0 | Excellent |
| Inlet Surfing Beach Riverside Dr. | inlet | 5 | 6 | 0 | Excellent |
| Fishermans Cove Doggy Park | ocean | 6 | 7 | 2 | Excellent |
8 of 9 rated excellent/good · avg 7 CFU/100mL (5-yr) · 7 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Army Rec. Beach North | ocean | 5 | 6 | 0 | Excellent |
| Area E Visitor Center South | ocean | 6 | 6 | 0 | Excellent |
| Gunnison | ocean | 5 | 6 | 0 | Excellent |
| Horseshoe Cove | ocean | 5 | 7 | 1 | Excellent |
| C Beach | ocean | 6 | 7 | 0 | Excellent |
| Plum Island | ocean | 8 | 6 | 1 | Good |
| Thompson | ocean | 11 | 7 | 3 | Good |
| Spermaceti Cove | ocean | 8 | 8 | 1 | Good |
| Monmouth and Wilson | ocean | 9 | 7 | 3 | Fair |
1 of 1 rated excellent/good · avg 7 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Pavilion Beach | ocean | 5 | 7 | 0 | Excellent |
4 of 4 rated excellent/good · avg 7 CFU/100mL (5-yr) · 1 2025 advisory · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Main | ocean | 5 | 6 | 0 | Excellent |
| Spray Ave. | ocean | 5 | 6 | 0 | Excellent |
| Broadway | ocean | 6 | 7 | 1 | Excellent |
| Memorial Park | ocean | 6 | 9 | 4 | Good |
2 of 2 rated excellent/good · avg 6 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Public Beach | ocean | 5 | 6 | 0 | Excellent |
| Rumson Rd | ocean | 5 | 6 | 0 | Excellent |
5 of 5 rated excellent/good · avg 7 CFU/100mL (5-yr) · no 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Neptune Pl | ocean | 7 | 7 | 1 | Excellent |
| The Terrace | ocean | 7 | 7 | 0 | Excellent |
| Beacon Blvd | ocean | 6 | 7 | 0 | Excellent |
| Baltimore | ocean | 7 | 7 | 0 | Excellent |
| New York Blvd | ocean | 8 | 8 | 1 | Excellent |
6 of 6 rated excellent/good · avg 7 CFU/100mL (5-yr) · 2 2025 advisories · town guide
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Worthington | lake | 6 | 7 | 0 | Excellent |
| Washington | lake | 6 | 7 | 1 | Excellent |
| Essex Ave | lake | 6 | 7 | 0 | Excellent |
| Union Ave | lake | 6 | 7 | 1 | Excellent |
| Brown Ave S | lake | 8 | 7 | 2 | Good |
| York Ave | lake | 8 | 7 | 2 | Good |
1 of 1 rated excellent/good · avg 10 CFU/100mL (5-yr) · 2 2025 advisories
| Station | Waters | 2025 geomean | 5-yr geomean | Advisories (5-yr) | Rating |
|---|---|---|---|---|---|
| Front | ocean | 16 | 10 | 5 | Good |